Last 12 months
Inside the activity.
3 purchase rows · 0 sale rows
Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.Monthly counts
| Month | Purchases | Sales |
|---|---|---|
| Nov 2025 | 0 | 0 |
| Dec 2025 | 0 | 0 |
| Jan 2026 | 0 | 0 |
| Feb 2026 | 0 | 0 |
| Mar 2026 | 0 | 0 |
| Apr 2026 | 0 | 0 |
| May 2026 | 0 | 0 |
| Jun 2026 | 0 | 0 |
| Jul 2026 | 3 | 0 |
| Aug 2026 | 0 | 0 |
| Sep 2026 | 0 | 0 |
| Oct 2026 | 0 | 0 |
Latest available
Insider transactions
Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Owner / reported role | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| August 04, 2025 Filed Aug 6, 2025 20:30 UTC |
ECP ControlCo, LLC10% owner
Energy Capital Partners IV, LLC10% owner
Energy Capital Partners GP IV, LP10% owner
ENERGY CAPITAL PARTNERS IV-A, LP10% owner
ENERGY CAPITAL PARTNERS IV-B, LP10% owner
ENERGY CAPITAL PARTNERS IV-C, LP10% owner
ENERGY CAPITAL PARTNERS IV-D, LP10% owner
|
PurchaseCommon Stock | 23,703 | $13.00 | $308,032.34 |
DisclosureSEC source: 0001641172-25-022436 · ownership.xml · nonDerivative · entry 1 ECP ControlCo, LLC · CIK 0001707921 · 10% owner Energy Capital Partners IV, LLC · CIK 0001845291 · 10% owner Energy Capital Partners GP IV, LP · CIK 0001844921 · 10% owner ENERGY CAPITAL PARTNERS IV-A, LP · CIK 0001726198 · 10% owner ENERGY CAPITAL PARTNERS IV-B, LP · CIK 0001726216 · 10% owner ENERGY CAPITAL PARTNERS IV-C, LP · CIK 0001726217 · 10% owner ENERGY CAPITAL PARTNERS IV-D, LP · CIK 0001726219 · 10% owner Energy Capital Partners IV-B (Hill City IP), LP · CIK 0002032499 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 3,118,244 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F2 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $12.62 to $13.16. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| August 01, 2025 Filed Aug 4, 2025 20:30 UTC |
ECP Fiber Holdings GP, LLC10% owner
ECP Fiber Holdings, LP10% owner
Hill City Holdings GP, LLC10% owner
Hill City Holdings, LP10% owner
|
PurchaseCommon Stock | 795 | $14.44 | $11,477.57 |
DisclosureSEC source: 0001641172-25-022050 · ownership.xml · nonDerivative · entry 4 ECP Fiber Holdings GP, LLC · CIK 0002032452 · 10% owner ECP Fiber Holdings, LP · CIK 0002032502 · 10% owner Hill City Holdings GP, LLC · CIK 0002032495 · 10% owner Hill City Holdings, LP · CIK 0001881388 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 3,094,541 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F7 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.35 to $14.54. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| August 01, 2025 Filed Aug 4, 2025 20:30 UTC |
ECP Fiber Holdings GP, LLC10% owner
ECP Fiber Holdings, LP10% owner
Hill City Holdings GP, LLC10% owner
Hill City Holdings, LP10% owner
|
PurchaseCommon Stock | 20,620 | $13.66 | $281,764.05 |
DisclosureSEC source: 0001641172-25-022050 · ownership.xml · nonDerivative · entry 3 ECP Fiber Holdings GP, LLC · CIK 0002032452 · 10% owner ECP Fiber Holdings, LP · CIK 0002032502 · 10% owner Hill City Holdings GP, LLC · CIK 0002032495 · 10% owner Hill City Holdings, LP · CIK 0001881388 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 3,093,746 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F6 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $13.30 to $14.25. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| August 01, 2025 Filed Aug 4, 2025 20:30 UTC |
ECP Fiber Holdings GP, LLC10% owner
ECP Fiber Holdings, LP10% owner
Hill City Holdings GP, LLC10% owner
Hill City Holdings, LP10% owner
|
PurchaseCommon Stock | 8,585 | $12.93 | $111,030.66 |
DisclosureSEC source: 0001641172-25-022050 · ownership.xml · nonDerivative · entry 2 ECP Fiber Holdings GP, LLC · CIK 0002032452 · 10% owner ECP Fiber Holdings, LP · CIK 0002032502 · 10% owner Hill City Holdings GP, LLC · CIK 0002032495 · 10% owner Hill City Holdings, LP · CIK 0001881388 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 3,073,126 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F5 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $12.29 to $13.29. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| August 01, 2025 Filed Aug 4, 2025 20:30 UTC |
ECP ControlCo, LLC10% owner
Energy Capital Partners IV, LLC10% owner
Energy Capital Partners GP IV, LP10% owner
ENERGY CAPITAL PARTNERS IV-A, LP10% owner
ENERGY CAPITAL PARTNERS IV-B, LP10% owner
ENERGY CAPITAL PARTNERS IV-C, LP10% owner
ENERGY CAPITAL PARTNERS IV-D, LP10% owner
|
PurchaseCommon Stock | 795 | $14.44 | $11,477.57 |
DisclosureSEC source: 0001641172-25-022049 · ownership.xml · nonDerivative · entry 4 ECP ControlCo, LLC · CIK 0001707921 · 10% owner Energy Capital Partners IV, LLC · CIK 0001845291 · 10% owner Energy Capital Partners GP IV, LP · CIK 0001844921 · 10% owner ENERGY CAPITAL PARTNERS IV-A, LP · CIK 0001726198 · 10% owner ENERGY CAPITAL PARTNERS IV-B, LP · CIK 0001726216 · 10% owner ENERGY CAPITAL PARTNERS IV-C, LP · CIK 0001726217 · 10% owner ENERGY CAPITAL PARTNERS IV-D, LP · CIK 0001726219 · 10% owner Energy Capital Partners IV-B (Hill City IP), LP · CIK 0002032499 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 3,094,541 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F7 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.35 to $14.54. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| August 01, 2025 Filed Aug 4, 2025 20:30 UTC |
ECP ControlCo, LLC10% owner
Energy Capital Partners IV, LLC10% owner
Energy Capital Partners GP IV, LP10% owner
ENERGY CAPITAL PARTNERS IV-A, LP10% owner
ENERGY CAPITAL PARTNERS IV-B, LP10% owner
ENERGY CAPITAL PARTNERS IV-C, LP10% owner
ENERGY CAPITAL PARTNERS IV-D, LP10% owner
|
PurchaseCommon Stock | 20,620 | $13.66 | $281,764.05 |
DisclosureSEC source: 0001641172-25-022049 · ownership.xml · nonDerivative · entry 3 ECP ControlCo, LLC · CIK 0001707921 · 10% owner Energy Capital Partners IV, LLC · CIK 0001845291 · 10% owner Energy Capital Partners GP IV, LP · CIK 0001844921 · 10% owner ENERGY CAPITAL PARTNERS IV-A, LP · CIK 0001726198 · 10% owner ENERGY CAPITAL PARTNERS IV-B, LP · CIK 0001726216 · 10% owner ENERGY CAPITAL PARTNERS IV-C, LP · CIK 0001726217 · 10% owner ENERGY CAPITAL PARTNERS IV-D, LP · CIK 0001726219 · 10% owner Energy Capital Partners IV-B (Hill City IP), LP · CIK 0002032499 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 3,093,746 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F6 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $13.30 to $14.25. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| August 01, 2025 Filed Aug 4, 2025 20:30 UTC |
ECP ControlCo, LLC10% owner
Energy Capital Partners IV, LLC10% owner
Energy Capital Partners GP IV, LP10% owner
ENERGY CAPITAL PARTNERS IV-A, LP10% owner
ENERGY CAPITAL PARTNERS IV-B, LP10% owner
ENERGY CAPITAL PARTNERS IV-C, LP10% owner
ENERGY CAPITAL PARTNERS IV-D, LP10% owner
|
PurchaseCommon Stock | 8,585 | $12.93 | $111,030.66 |
DisclosureSEC source: 0001641172-25-022049 · ownership.xml · nonDerivative · entry 2 ECP ControlCo, LLC · CIK 0001707921 · 10% owner Energy Capital Partners IV, LLC · CIK 0001845291 · 10% owner Energy Capital Partners GP IV, LP · CIK 0001844921 · 10% owner ENERGY CAPITAL PARTNERS IV-A, LP · CIK 0001726198 · 10% owner ENERGY CAPITAL PARTNERS IV-B, LP · CIK 0001726216 · 10% owner ENERGY CAPITAL PARTNERS IV-C, LP · CIK 0001726217 · 10% owner ENERGY CAPITAL PARTNERS IV-D, LP · CIK 0001726219 · 10% owner Energy Capital Partners IV-B (Hill City IP), LP · CIK 0002032499 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 3,073,126 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F5 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $12.29 to $13.29. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 31, 2025 Filed Aug 4, 2025 20:30 UTC |
ECP Fiber Holdings GP, LLC10% owner
ECP Fiber Holdings, LP10% owner
Hill City Holdings GP, LLC10% owner
Hill City Holdings, LP10% owner
|
PurchaseCommon Stock | 22,847 | $14.74 | $336,746.50 |
DisclosureSEC source: 0001641172-25-022050 · ownership.xml · nonDerivative · entry 1 ECP Fiber Holdings GP, LLC · CIK 0002032452 · 10% owner ECP Fiber Holdings, LP · CIK 0002032502 · 10% owner Hill City Holdings GP, LLC · CIK 0002032495 · 10% owner Hill City Holdings, LP · CIK 0001881388 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 3,064,541 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F2 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.55 to $14.93. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 31, 2025 Filed Aug 4, 2025 20:30 UTC |
ECP ControlCo, LLC10% owner
Energy Capital Partners IV, LLC10% owner
Energy Capital Partners GP IV, LP10% owner
ENERGY CAPITAL PARTNERS IV-A, LP10% owner
ENERGY CAPITAL PARTNERS IV-B, LP10% owner
ENERGY CAPITAL PARTNERS IV-C, LP10% owner
ENERGY CAPITAL PARTNERS IV-D, LP10% owner
|
PurchaseCommon Stock | 22,847 | $14.74 | $336,746.50 |
DisclosureSEC source: 0001641172-25-022049 · ownership.xml · nonDerivative · entry 1 ECP ControlCo, LLC · CIK 0001707921 · 10% owner Energy Capital Partners IV, LLC · CIK 0001845291 · 10% owner Energy Capital Partners GP IV, LP · CIK 0001844921 · 10% owner ENERGY CAPITAL PARTNERS IV-A, LP · CIK 0001726198 · 10% owner ENERGY CAPITAL PARTNERS IV-B, LP · CIK 0001726216 · 10% owner ENERGY CAPITAL PARTNERS IV-C, LP · CIK 0001726217 · 10% owner ENERGY CAPITAL PARTNERS IV-D, LP · CIK 0001726219 · 10% owner Energy Capital Partners IV-B (Hill City IP), LP · CIK 0002032499 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 3,064,541 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F2 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.55 to $14.93. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 30, 2025 Filed Jul 31, 2025 20:30 UTC |
ECP ControlCo, LLC10% owner
Energy Capital Partners IV, LLC10% owner
Energy Capital Partners GP IV, LP10% owner
ENERGY CAPITAL PARTNERS IV-A, LP10% owner
ENERGY CAPITAL PARTNERS IV-B, LP10% owner
ENERGY CAPITAL PARTNERS IV-C, LP10% owner
ENERGY CAPITAL PARTNERS IV-D, LP10% owner
|
PurchaseCommon Stock | 17,303 | $14.88 | $257,511.90 |
DisclosureSEC source: 0001641172-25-021754 · ownership.xml · nonDerivative · entry 2 ECP ControlCo, LLC · CIK 0001707921 · 10% owner Energy Capital Partners IV, LLC · CIK 0001845291 · 10% owner Energy Capital Partners GP IV, LP · CIK 0001844921 · 10% owner ENERGY CAPITAL PARTNERS IV-A, LP · CIK 0001726198 · 10% owner ENERGY CAPITAL PARTNERS IV-B, LP · CIK 0001726216 · 10% owner ENERGY CAPITAL PARTNERS IV-C, LP · CIK 0001726217 · 10% owner ENERGY CAPITAL PARTNERS IV-D, LP · CIK 0001726219 · 10% owner Energy Capital Partners IV-B (Hill City IP), LP · CIK 0002032499 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 3,041,694 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F5 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.66 to $15.135. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 30, 2025 Filed Jul 31, 2025 20:30 UTC |
ECP Fiber Holdings GP, LLC10% owner
ECP Fiber Holdings, LP10% owner
Hill City Holdings GP, LLC10% owner
Hill City Holdings, LP10% owner
|
PurchaseCommon Stock | 17,303 | $14.88 | $257,511.90 |
DisclosureSEC source: 0001641172-25-021752 · ownership.xml · nonDerivative · entry 2 ECP Fiber Holdings GP, LLC · CIK 0002032452 · 10% owner ECP Fiber Holdings, LP · CIK 0002032502 · 10% owner Hill City Holdings GP, LLC · CIK 0002032495 · 10% owner Hill City Holdings, LP · CIK 0001881388 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 3,041,694 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F5 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.66 to $15.135. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 29, 2025 Filed Jul 31, 2025 20:30 UTC |
ECP ControlCo, LLC10% owner
Energy Capital Partners IV, LLC10% owner
Energy Capital Partners GP IV, LP10% owner
ENERGY CAPITAL PARTNERS IV-A, LP10% owner
ENERGY CAPITAL PARTNERS IV-B, LP10% owner
ENERGY CAPITAL PARTNERS IV-C, LP10% owner
ENERGY CAPITAL PARTNERS IV-D, LP10% owner
|
PurchaseCommon Stock | 19,852 | $14.88 | $295,467.24 |
DisclosureSEC source: 0001641172-25-021754 · ownership.xml · nonDerivative · entry 1 ECP ControlCo, LLC · CIK 0001707921 · 10% owner Energy Capital Partners IV, LLC · CIK 0001845291 · 10% owner Energy Capital Partners GP IV, LP · CIK 0001844921 · 10% owner ENERGY CAPITAL PARTNERS IV-A, LP · CIK 0001726198 · 10% owner ENERGY CAPITAL PARTNERS IV-B, LP · CIK 0001726216 · 10% owner ENERGY CAPITAL PARTNERS IV-C, LP · CIK 0001726217 · 10% owner ENERGY CAPITAL PARTNERS IV-D, LP · CIK 0001726219 · 10% owner Energy Capital Partners IV-B (Hill City IP), LP · CIK 0002032499 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 3,024,391 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F2 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.70 to $15.12. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 29, 2025 Filed Jul 31, 2025 20:30 UTC |
ECP Fiber Holdings GP, LLC10% owner
ECP Fiber Holdings, LP10% owner
Hill City Holdings GP, LLC10% owner
Hill City Holdings, LP10% owner
|
PurchaseCommon Stock | 19,852 | $14.88 | $295,467.24 |
DisclosureSEC source: 0001641172-25-021752 · ownership.xml · nonDerivative · entry 1 ECP Fiber Holdings GP, LLC · CIK 0002032452 · 10% owner ECP Fiber Holdings, LP · CIK 0002032502 · 10% owner Hill City Holdings GP, LLC · CIK 0002032495 · 10% owner Hill City Holdings, LP · CIK 0001881388 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 3,024,391 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F2 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.70 to $15.12. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 28, 2025 Filed Jul 29, 2025 21:01 UTC |
ECP ControlCo, LLC10% owner
Energy Capital Partners IV, LLC10% owner
Energy Capital Partners GP IV, LP10% owner
ENERGY CAPITAL PARTNERS IV-A, LP10% owner
ENERGY CAPITAL PARTNERS IV-B, LP10% owner
ENERGY CAPITAL PARTNERS IV-C, LP10% owner
ENERGY CAPITAL PARTNERS IV-D, LP10% owner
|
PurchaseCommon Stock | 11,934 | $15.06 | $179,726.04 |
DisclosureSEC source: 0001641172-25-021404 · ownership.xml · nonDerivative · entry 2 ECP ControlCo, LLC · CIK 0001707921 · 10% owner Energy Capital Partners IV, LLC · CIK 0001845291 · 10% owner Energy Capital Partners GP IV, LP · CIK 0001844921 · 10% owner ENERGY CAPITAL PARTNERS IV-A, LP · CIK 0001726198 · 10% owner ENERGY CAPITAL PARTNERS IV-B, LP · CIK 0001726216 · 10% owner ENERGY CAPITAL PARTNERS IV-C, LP · CIK 0001726217 · 10% owner ENERGY CAPITAL PARTNERS IV-D, LP · CIK 0001726219 · 10% owner Energy Capital Partners IV-B (Hill City IP), LP · CIK 0002032499 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 3,004,539 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F5 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.9379 to $15.355. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 28, 2025 Filed Jul 29, 2025 21:02 UTC |
ECP Fiber Holdings GP, LLC10% owner
ECP Fiber Holdings, LP10% owner
Hill City Holdings GP, LLC10% owner
Hill City Holdings, LP10% owner
|
PurchaseCommon Stock | 11,934 | $15.06 | $179,726.04 |
DisclosureSEC source: 0001641172-25-021405 · ownership.xml · nonDerivative · entry 2 ECP Fiber Holdings GP, LLC · CIK 0002032452 · 10% owner ECP Fiber Holdings, LP · CIK 0002032502 · 10% owner Hill City Holdings GP, LLC · CIK 0002032495 · 10% owner Hill City Holdings, LP · CIK 0001881388 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 3,004,539 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F5 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.9379 to $15.355. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 25, 2025 Filed Jul 29, 2025 21:01 UTC |
ECP ControlCo, LLC10% owner
Energy Capital Partners IV, LLC10% owner
Energy Capital Partners GP IV, LP10% owner
ENERGY CAPITAL PARTNERS IV-A, LP10% owner
ENERGY CAPITAL PARTNERS IV-B, LP10% owner
ENERGY CAPITAL PARTNERS IV-C, LP10% owner
ENERGY CAPITAL PARTNERS IV-D, LP10% owner
|
PurchaseCommon Stock | 10,264 | $15.22 | $156,259.14 |
DisclosureSEC source: 0001641172-25-021404 · ownership.xml · nonDerivative · entry 1 ECP ControlCo, LLC · CIK 0001707921 · 10% owner Energy Capital Partners IV, LLC · CIK 0001845291 · 10% owner Energy Capital Partners GP IV, LP · CIK 0001844921 · 10% owner ENERGY CAPITAL PARTNERS IV-A, LP · CIK 0001726198 · 10% owner ENERGY CAPITAL PARTNERS IV-B, LP · CIK 0001726216 · 10% owner ENERGY CAPITAL PARTNERS IV-C, LP · CIK 0001726217 · 10% owner ENERGY CAPITAL PARTNERS IV-D, LP · CIK 0001726219 · 10% owner Energy Capital Partners IV-B (Hill City IP), LP · CIK 0002032499 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 2,992,605 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F2 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $15.1164 to $15.53. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 25, 2025 Filed Jul 29, 2025 21:02 UTC |
ECP Fiber Holdings GP, LLC10% owner
ECP Fiber Holdings, LP10% owner
Hill City Holdings GP, LLC10% owner
Hill City Holdings, LP10% owner
|
PurchaseCommon Stock | 10,264 | $15.22 | $156,259.14 |
DisclosureSEC source: 0001641172-25-021405 · ownership.xml · nonDerivative · entry 1 ECP Fiber Holdings GP, LLC · CIK 0002032452 · 10% owner ECP Fiber Holdings, LP · CIK 0002032502 · 10% owner Hill City Holdings GP, LLC · CIK 0002032495 · 10% owner Hill City Holdings, LP · CIK 0001881388 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 2,992,605 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F2 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $15.1164 to $15.53. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 24, 2025 Filed Jul 25, 2025 20:31 UTC |
ECP Fiber Holdings GP, LLC10% owner
ECP Fiber Holdings, LP10% owner
Hill City Holdings GP, LLC10% owner
Hill City Holdings, LP10% owner
|
PurchaseCommon Stock | 8,980 | $15.52 | $139,335.48 |
DisclosureSEC source: 0001641172-25-021021 · ownership.xml · nonDerivative · entry 2 ECP Fiber Holdings GP, LLC · CIK 0002032452 · 10% owner ECP Fiber Holdings, LP · CIK 0002032502 · 10% owner Hill City Holdings GP, LLC · CIK 0002032495 · 10% owner Hill City Holdings, LP · CIK 0001881388 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 2,982,341 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F5 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $15.39 to $15.76. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 24, 2025 Filed Jul 25, 2025 20:30 UTC |
ECP ControlCo, LLC10% owner
Energy Capital Partners IV, LLC10% owner
Energy Capital Partners GP IV, LP10% owner
ENERGY CAPITAL PARTNERS IV-A, LP10% owner
ENERGY CAPITAL PARTNERS IV-B, LP10% owner
ENERGY CAPITAL PARTNERS IV-C, LP10% owner
ENERGY CAPITAL PARTNERS IV-D, LP10% owner
|
PurchaseCommon Stock | 8,980 | $15.52 | $139,335.48 |
DisclosureSEC source: 0001641172-25-021019 · ownership.xml · nonDerivative · entry 2 ECP ControlCo, LLC · CIK 0001707921 · 10% owner Energy Capital Partners IV, LLC · CIK 0001845291 · 10% owner Energy Capital Partners GP IV, LP · CIK 0001844921 · 10% owner ENERGY CAPITAL PARTNERS IV-A, LP · CIK 0001726198 · 10% owner ENERGY CAPITAL PARTNERS IV-B, LP · CIK 0001726216 · 10% owner ENERGY CAPITAL PARTNERS IV-C, LP · CIK 0001726217 · 10% owner ENERGY CAPITAL PARTNERS IV-D, LP · CIK 0001726219 · 10% owner Energy Capital Partners IV-B (Hill City IP), LP · CIK 0002032499 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 2,982,341 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F5 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $15.39 to $15.76. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 23, 2025 Filed Jul 25, 2025 20:31 UTC |
ECP Fiber Holdings GP, LLC10% owner
ECP Fiber Holdings, LP10% owner
Hill City Holdings GP, LLC10% owner
Hill City Holdings, LP10% owner
|
PurchaseCommon Stock | 15,801 | $15.64 | $247,178.20 |
DisclosureSEC source: 0001641172-25-021021 · ownership.xml · nonDerivative · entry 1 ECP Fiber Holdings GP, LLC · CIK 0002032452 · 10% owner ECP Fiber Holdings, LP · CIK 0002032502 · 10% owner Hill City Holdings GP, LLC · CIK 0002032495 · 10% owner Hill City Holdings, LP · CIK 0001881388 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 2,973,361 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F2 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $15.22 to $15.7448. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 23, 2025 Filed Jul 25, 2025 20:30 UTC |
ECP ControlCo, LLC10% owner
Energy Capital Partners IV, LLC10% owner
Energy Capital Partners GP IV, LP10% owner
ENERGY CAPITAL PARTNERS IV-A, LP10% owner
ENERGY CAPITAL PARTNERS IV-B, LP10% owner
ENERGY CAPITAL PARTNERS IV-C, LP10% owner
ENERGY CAPITAL PARTNERS IV-D, LP10% owner
|
PurchaseCommon Stock | 15,801 | $15.64 | $247,178.20 |
DisclosureSEC source: 0001641172-25-021019 · ownership.xml · nonDerivative · entry 1 ECP ControlCo, LLC · CIK 0001707921 · 10% owner Energy Capital Partners IV, LLC · CIK 0001845291 · 10% owner Energy Capital Partners GP IV, LP · CIK 0001844921 · 10% owner ENERGY CAPITAL PARTNERS IV-A, LP · CIK 0001726198 · 10% owner ENERGY CAPITAL PARTNERS IV-B, LP · CIK 0001726216 · 10% owner ENERGY CAPITAL PARTNERS IV-C, LP · CIK 0001726217 · 10% owner ENERGY CAPITAL PARTNERS IV-D, LP · CIK 0001726219 · 10% owner Energy Capital Partners IV-B (Hill City IP), LP · CIK 0002032499 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 2,973,361 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F2 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $15.22 to $15.7448. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 22, 2025 Filed Jul 23, 2025 20:34 UTC |
ECP ControlCo, LLC10% owner
Energy Capital Partners IV, LLC10% owner
Energy Capital Partners GP IV, LP10% owner
ENERGY CAPITAL PARTNERS IV-A, LP10% owner
ENERGY CAPITAL PARTNERS IV-B, LP10% owner
ENERGY CAPITAL PARTNERS IV-C, LP10% owner
ENERGY CAPITAL PARTNERS IV-D, LP10% owner
|
PurchaseCommon Stock | 17,583 | $15.40 | $270,781.72 |
DisclosureSEC source: 0001641172-25-020704 · ownership.xml · nonDerivative · entry 2 ECP ControlCo, LLC · CIK 0001707921 · 10% owner Energy Capital Partners IV, LLC · CIK 0001845291 · 10% owner Energy Capital Partners GP IV, LP · CIK 0001844921 · 10% owner ENERGY CAPITAL PARTNERS IV-A, LP · CIK 0001726198 · 10% owner ENERGY CAPITAL PARTNERS IV-B, LP · CIK 0001726216 · 10% owner ENERGY CAPITAL PARTNERS IV-C, LP · CIK 0001726217 · 10% owner ENERGY CAPITAL PARTNERS IV-D, LP · CIK 0001726219 · 10% owner Energy Capital Partners IV-B (Hill City IP), LP · CIK 0002032499 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 2,957,560 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F5 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $15.21 to $15.76. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 22, 2025 Filed Jul 23, 2025 20:31 UTC |
ECP Fiber Holdings GP, LLC10% owner
ECP Fiber Holdings, LP10% owner
Hill City Holdings GP, LLC10% owner
Hill City Holdings, LP10% owner
|
PurchaseCommon Stock | 17,583 | $15.40 | $270,781.72 |
DisclosureSEC source: 0001641172-25-020703 · ownership.xml · nonDerivative · entry 2 ECP Fiber Holdings GP, LLC · CIK 0002032452 · 10% owner ECP Fiber Holdings, LP · CIK 0002032502 · 10% owner Hill City Holdings GP, LLC · CIK 0002032495 · 10% owner Hill City Holdings, LP · CIK 0001881388 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 2,957,560 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F5 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $15.21 to $15.76. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 21, 2025 Filed Jul 23, 2025 20:34 UTC |
ECP ControlCo, LLC10% owner
Energy Capital Partners IV, LLC10% owner
Energy Capital Partners GP IV, LP10% owner
ENERGY CAPITAL PARTNERS IV-A, LP10% owner
ENERGY CAPITAL PARTNERS IV-B, LP10% owner
ENERGY CAPITAL PARTNERS IV-C, LP10% owner
ENERGY CAPITAL PARTNERS IV-D, LP10% owner
|
PurchaseCommon Stock | 16,467 | $15.02 | $247,363.98 |
DisclosureSEC source: 0001641172-25-020704 · ownership.xml · nonDerivative · entry 1 ECP ControlCo, LLC · CIK 0001707921 · 10% owner Energy Capital Partners IV, LLC · CIK 0001845291 · 10% owner Energy Capital Partners GP IV, LP · CIK 0001844921 · 10% owner ENERGY CAPITAL PARTNERS IV-A, LP · CIK 0001726198 · 10% owner ENERGY CAPITAL PARTNERS IV-B, LP · CIK 0001726216 · 10% owner ENERGY CAPITAL PARTNERS IV-C, LP · CIK 0001726217 · 10% owner ENERGY CAPITAL PARTNERS IV-D, LP · CIK 0001726219 · 10% owner Energy Capital Partners IV-B (Hill City IP), LP · CIK 0002032499 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 2,939,977 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F2 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.8497 to $15.15. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 21, 2025 Filed Jul 23, 2025 20:31 UTC |
ECP Fiber Holdings GP, LLC10% owner
ECP Fiber Holdings, LP10% owner
Hill City Holdings GP, LLC10% owner
Hill City Holdings, LP10% owner
|
PurchaseCommon Stock | 16,467 | $15.02 | $247,363.98 |
DisclosureSEC source: 0001641172-25-020703 · ownership.xml · nonDerivative · entry 1 ECP Fiber Holdings GP, LLC · CIK 0002032452 · 10% owner ECP Fiber Holdings, LP · CIK 0002032502 · 10% owner Hill City Holdings GP, LLC · CIK 0002032495 · 10% owner Hill City Holdings, LP · CIK 0001881388 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 2,939,977 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F2 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.8497 to $15.15. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 18, 2025 Filed Jul 21, 2025 20:53 UTC |
ECP Fiber Holdings GP, LLC10% owner
ECP Fiber Holdings, LP10% owner
Hill City Holdings GP, LLC10% owner
Hill City Holdings, LP10% owner
|
PurchaseCommon Stock | 20,004 | $14.83 | $296,709.33 |
DisclosureSEC source: 0001641172-25-020422 · ownership.xml · nonDerivative · entry 2 ECP Fiber Holdings GP, LLC · CIK 0002032452 · 10% owner ECP Fiber Holdings, LP · CIK 0002032502 · 10% owner Hill City Holdings GP, LLC · CIK 0002032495 · 10% owner Hill City Holdings, LP · CIK 0001881388 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 2,923,510 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F5 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.67 to $15.22. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 18, 2025 Filed Jul 21, 2025 20:53 UTC |
ECP ControlCo, LLC10% owner
Energy Capital Partners IV, LLC10% owner
Energy Capital Partners GP IV, LP10% owner
ENERGY CAPITAL PARTNERS IV-A, LP10% owner
ENERGY CAPITAL PARTNERS IV-B, LP10% owner
ENERGY CAPITAL PARTNERS IV-C, LP10% owner
ENERGY CAPITAL PARTNERS IV-D, LP10% owner
|
PurchaseCommon Stock | 20,004 | $14.83 | $296,709.33 |
DisclosureSEC source: 0001641172-25-020421 · ownership.xml · nonDerivative · entry 2 ECP ControlCo, LLC · CIK 0001707921 · 10% owner Energy Capital Partners IV, LLC · CIK 0001845291 · 10% owner Energy Capital Partners GP IV, LP · CIK 0001844921 · 10% owner ENERGY CAPITAL PARTNERS IV-A, LP · CIK 0001726198 · 10% owner ENERGY CAPITAL PARTNERS IV-B, LP · CIK 0001726216 · 10% owner ENERGY CAPITAL PARTNERS IV-C, LP · CIK 0001726217 · 10% owner ENERGY CAPITAL PARTNERS IV-D, LP · CIK 0001726219 · 10% owner Energy Capital Partners IV-B (Hill City IP), LP · CIK 0002032499 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 2,923,510 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F5 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.67 to $15.22. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 17, 2025 Filed Jul 21, 2025 20:53 UTC |
ECP Fiber Holdings GP, LLC10% owner
ECP Fiber Holdings, LP10% owner
Hill City Holdings GP, LLC10% owner
Hill City Holdings, LP10% owner
|
PurchaseCommon Stock | 30,000 | $14.62 | $438,711.00 |
DisclosureSEC source: 0001641172-25-020422 · ownership.xml · nonDerivative · entry 1 ECP Fiber Holdings GP, LLC · CIK 0002032452 · 10% owner ECP Fiber Holdings, LP · CIK 0002032502 · 10% owner Hill City Holdings GP, LLC · CIK 0002032495 · 10% owner Hill City Holdings, LP · CIK 0001881388 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 2,903,506 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F2 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.32 to $14.775. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 17, 2025 Filed Jul 21, 2025 20:53 UTC |
ECP ControlCo, LLC10% owner
Energy Capital Partners IV, LLC10% owner
Energy Capital Partners GP IV, LP10% owner
ENERGY CAPITAL PARTNERS IV-A, LP10% owner
ENERGY CAPITAL PARTNERS IV-B, LP10% owner
ENERGY CAPITAL PARTNERS IV-C, LP10% owner
ENERGY CAPITAL PARTNERS IV-D, LP10% owner
|
PurchaseCommon Stock | 30,000 | $14.62 | $438,711.00 |
DisclosureSEC source: 0001641172-25-020421 · ownership.xml · nonDerivative · entry 1 ECP ControlCo, LLC · CIK 0001707921 · 10% owner Energy Capital Partners IV, LLC · CIK 0001845291 · 10% owner Energy Capital Partners GP IV, LP · CIK 0001844921 · 10% owner ENERGY CAPITAL PARTNERS IV-A, LP · CIK 0001726198 · 10% owner ENERGY CAPITAL PARTNERS IV-B, LP · CIK 0001726216 · 10% owner ENERGY CAPITAL PARTNERS IV-C, LP · CIK 0001726217 · 10% owner ENERGY CAPITAL PARTNERS IV-D, LP · CIK 0001726219 · 10% owner Energy Capital Partners IV-B (Hill City IP), LP · CIK 0002032499 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 2,903,506 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F2 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.32 to $14.775. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 16, 2025 Filed Jul 17, 2025 20:30 UTC |
ECP Fiber Holdings GP, LLC10% owner
ECP Fiber Holdings, LP10% owner
Hill City Holdings GP, LLC10% owner
Hill City Holdings, LP10% owner
|
PurchaseCommon Stock | 22,402 | $14.59 | $326,751.09 |
DisclosureSEC source: 0001641172-25-020062 · ownership.xml · nonDerivative · entry 2 ECP Fiber Holdings GP, LLC · CIK 0002032452 · 10% owner ECP Fiber Holdings, LP · CIK 0002032502 · 10% owner Hill City Holdings GP, LLC · CIK 0002032495 · 10% owner Hill City Holdings, LP · CIK 0001881388 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 2,873,506 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F5 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.38 to $14.83. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 16, 2025 Filed Jul 17, 2025 20:30 UTC |
ECP ControlCo, LLC10% owner
Energy Capital Partners IV, LLC10% owner
Energy Capital Partners GP IV, LP10% owner
ENERGY CAPITAL PARTNERS IV-A, LP10% owner
ENERGY CAPITAL PARTNERS IV-B, LP10% owner
ENERGY CAPITAL PARTNERS IV-C, LP10% owner
ENERGY CAPITAL PARTNERS IV-D, LP10% owner
|
PurchaseCommon Stock | 22,402 | $14.59 | $326,751.09 |
DisclosureSEC source: 0001641172-25-020060 · ownership.xml · nonDerivative · entry 2 ECP ControlCo, LLC · CIK 0001707921 · 10% owner Energy Capital Partners IV, LLC · CIK 0001845291 · 10% owner Energy Capital Partners GP IV, LP · CIK 0001844921 · 10% owner ENERGY CAPITAL PARTNERS IV-A, LP · CIK 0001726198 · 10% owner ENERGY CAPITAL PARTNERS IV-B, LP · CIK 0001726216 · 10% owner ENERGY CAPITAL PARTNERS IV-C, LP · CIK 0001726217 · 10% owner ENERGY CAPITAL PARTNERS IV-D, LP · CIK 0001726219 · 10% owner Energy Capital Partners IV-B (Hill City IP), LP · CIK 0002032499 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 2,873,506 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F5 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.38 to $14.83. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 15, 2025 Filed Jul 17, 2025 20:30 UTC |
ECP Fiber Holdings GP, LLC10% owner
ECP Fiber Holdings, LP10% owner
Hill City Holdings GP, LLC10% owner
Hill City Holdings, LP10% owner
|
PurchaseCommon Stock | 28,952 | $14.69 | $425,394.63 |
DisclosureSEC source: 0001641172-25-020062 · ownership.xml · nonDerivative · entry 1 ECP Fiber Holdings GP, LLC · CIK 0002032452 · 10% owner ECP Fiber Holdings, LP · CIK 0002032502 · 10% owner Hill City Holdings GP, LLC · CIK 0002032495 · 10% owner Hill City Holdings, LP · CIK 0001881388 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 2,851,104 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F2 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.40 to $15.34. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 15, 2025 Filed Jul 17, 2025 20:30 UTC |
ECP ControlCo, LLC10% owner
Energy Capital Partners IV, LLC10% owner
Energy Capital Partners GP IV, LP10% owner
ENERGY CAPITAL PARTNERS IV-A, LP10% owner
ENERGY CAPITAL PARTNERS IV-B, LP10% owner
ENERGY CAPITAL PARTNERS IV-C, LP10% owner
ENERGY CAPITAL PARTNERS IV-D, LP10% owner
|
PurchaseCommon Stock | 28,952 | $14.69 | $425,394.63 |
DisclosureSEC source: 0001641172-25-020060 · ownership.xml · nonDerivative · entry 1 ECP ControlCo, LLC · CIK 0001707921 · 10% owner Energy Capital Partners IV, LLC · CIK 0001845291 · 10% owner Energy Capital Partners GP IV, LP · CIK 0001844921 · 10% owner ENERGY CAPITAL PARTNERS IV-A, LP · CIK 0001726198 · 10% owner ENERGY CAPITAL PARTNERS IV-B, LP · CIK 0001726216 · 10% owner ENERGY CAPITAL PARTNERS IV-C, LP · CIK 0001726217 · 10% owner ENERGY CAPITAL PARTNERS IV-D, LP · CIK 0001726219 · 10% owner Energy Capital Partners IV-B (Hill City IP), LP · CIK 0002032499 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 2,851,104 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F2 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.40 to $15.34. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 14, 2025 Filed Jul 15, 2025 20:30 UTC |
ECP Fiber Holdings GP, LLC10% owner
ECP Fiber Holdings, LP10% owner
Hill City Holdings GP, LLC10% owner
Hill City Holdings, LP10% owner
|
PurchaseCommon Stock | 21,137 | $15.28 | $322,924.74 |
DisclosureSEC source: 0001641172-25-019734 · ownership.xml · nonDerivative · entry 2 ECP Fiber Holdings GP, LLC · CIK 0002032452 · 10% owner ECP Fiber Holdings, LP · CIK 0002032502 · 10% owner Hill City Holdings GP, LLC · CIK 0002032495 · 10% owner Hill City Holdings, LP · CIK 0001881388 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 2,822,152 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F5 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.98 to $15.835. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 14, 2025 Filed Jul 15, 2025 20:30 UTC |
ECP ControlCo, LLC10% owner
Energy Capital Partners IV, LLC10% owner
Energy Capital Partners GP IV, LP10% owner
ENERGY CAPITAL PARTNERS IV-A, LP10% owner
ENERGY CAPITAL PARTNERS IV-B, LP10% owner
ENERGY CAPITAL PARTNERS IV-C, LP10% owner
ENERGY CAPITAL PARTNERS IV-D, LP10% owner
|
PurchaseCommon Stock | 21,137 | $15.28 | $322,924.74 |
DisclosureSEC source: 0001641172-25-019732 · ownership.xml · nonDerivative · entry 2 ECP ControlCo, LLC · CIK 0001707921 · 10% owner Energy Capital Partners IV, LLC · CIK 0001845291 · 10% owner Energy Capital Partners GP IV, LP · CIK 0001844921 · 10% owner ENERGY CAPITAL PARTNERS IV-A, LP · CIK 0001726198 · 10% owner ENERGY CAPITAL PARTNERS IV-B, LP · CIK 0001726216 · 10% owner ENERGY CAPITAL PARTNERS IV-C, LP · CIK 0001726217 · 10% owner ENERGY CAPITAL PARTNERS IV-D, LP · CIK 0001726219 · 10% owner Energy Capital Partners IV-B (Hill City IP), LP · CIK 0002032499 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 2,822,152 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F5 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.98 to $15.835. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 11, 2025 Filed Jul 15, 2025 20:30 UTC |
ECP Fiber Holdings GP, LLC10% owner
ECP Fiber Holdings, LP10% owner
Hill City Holdings GP, LLC10% owner
Hill City Holdings, LP10% owner
|
PurchaseCommon Stock | 8,000 | $14.76 | $118,080.00 |
DisclosureSEC source: 0001641172-25-019734 · ownership.xml · nonDerivative · entry 1 ECP Fiber Holdings GP, LLC · CIK 0002032452 · 10% owner ECP Fiber Holdings, LP · CIK 0002032502 · 10% owner Hill City Holdings GP, LLC · CIK 0002032495 · 10% owner Hill City Holdings, LP · CIK 0001881388 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 2,801,015 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F2 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.57 to $14.815. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 11, 2025 Filed Jul 15, 2025 20:30 UTC |
ECP ControlCo, LLC10% owner
Energy Capital Partners IV, LLC10% owner
Energy Capital Partners GP IV, LP10% owner
ENERGY CAPITAL PARTNERS IV-A, LP10% owner
ENERGY CAPITAL PARTNERS IV-B, LP10% owner
ENERGY CAPITAL PARTNERS IV-C, LP10% owner
ENERGY CAPITAL PARTNERS IV-D, LP10% owner
|
PurchaseCommon Stock | 8,000 | $14.76 | $118,080.00 |
DisclosureSEC source: 0001641172-25-019732 · ownership.xml · nonDerivative · entry 1 ECP ControlCo, LLC · CIK 0001707921 · 10% owner Energy Capital Partners IV, LLC · CIK 0001845291 · 10% owner Energy Capital Partners GP IV, LP · CIK 0001844921 · 10% owner ENERGY CAPITAL PARTNERS IV-A, LP · CIK 0001726198 · 10% owner ENERGY CAPITAL PARTNERS IV-B, LP · CIK 0001726216 · 10% owner ENERGY CAPITAL PARTNERS IV-C, LP · CIK 0001726217 · 10% owner ENERGY CAPITAL PARTNERS IV-D, LP · CIK 0001726219 · 10% owner Energy Capital Partners IV-B (Hill City IP), LP · CIK 0002032499 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 2,801,015 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F2 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.57 to $14.815. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 10, 2025 Filed Jul 11, 2025 20:30 UTC |
ECP ControlCo, LLC10% owner
Energy Capital Partners IV, LLC10% owner
Energy Capital Partners GP IV, LP10% owner
ENERGY CAPITAL PARTNERS IV-A, LP10% owner
ENERGY CAPITAL PARTNERS IV-B, LP10% owner
ENERGY CAPITAL PARTNERS IV-C, LP10% owner
ENERGY CAPITAL PARTNERS IV-D, LP10% owner
|
PurchaseCommon Stock | 16,943 | $14.89 | $252,338.88 |
DisclosureSEC source: 0001641172-25-018770 · ownership.xml · nonDerivative · entry 2 ECP ControlCo, LLC · CIK 0001707921 · 10% owner Energy Capital Partners IV, LLC · CIK 0001845291 · 10% owner Energy Capital Partners GP IV, LP · CIK 0001844921 · 10% owner ENERGY CAPITAL PARTNERS IV-A, LP · CIK 0001726198 · 10% owner ENERGY CAPITAL PARTNERS IV-B, LP · CIK 0001726216 · 10% owner ENERGY CAPITAL PARTNERS IV-C, LP · CIK 0001726217 · 10% owner ENERGY CAPITAL PARTNERS IV-D, LP · CIK 0001726219 · 10% owner Energy Capital Partners IV-B (Hill City IP), LP · CIK 0002032499 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 2,793,015 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F5 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.63 to $15.08. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 10, 2025 Filed Jul 11, 2025 20:30 UTC |
ECP Fiber Holdings GP, LLC10% owner
ECP Fiber Holdings, LP10% owner
Hill City Holdings GP, LLC10% owner
Hill City Holdings, LP10% owner
|
PurchaseCommon Stock | 16,943 | $14.89 | $252,338.88 |
DisclosureSEC source: 0001641172-25-018769 · ownership.xml · nonDerivative · entry 2 ECP Fiber Holdings GP, LLC · CIK 0002032452 · 10% owner ECP Fiber Holdings, LP · CIK 0002032502 · 10% owner Hill City Holdings GP, LLC · CIK 0002032495 · 10% owner Hill City Holdings, LP · CIK 0001881388 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 2,793,015 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F5 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.63 to $15.08. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 09, 2025 Filed Jul 11, 2025 20:30 UTC |
ECP ControlCo, LLC10% owner
Energy Capital Partners IV, LLC10% owner
Energy Capital Partners GP IV, LP10% owner
ENERGY CAPITAL PARTNERS IV-A, LP10% owner
ENERGY CAPITAL PARTNERS IV-B, LP10% owner
ENERGY CAPITAL PARTNERS IV-C, LP10% owner
ENERGY CAPITAL PARTNERS IV-D, LP10% owner
|
PurchaseCommon Stock | 17,687 | $14.54 | $257,204.35 |
DisclosureSEC source: 0001641172-25-018770 · ownership.xml · nonDerivative · entry 1 ECP ControlCo, LLC · CIK 0001707921 · 10% owner Energy Capital Partners IV, LLC · CIK 0001845291 · 10% owner Energy Capital Partners GP IV, LP · CIK 0001844921 · 10% owner ENERGY CAPITAL PARTNERS IV-A, LP · CIK 0001726198 · 10% owner ENERGY CAPITAL PARTNERS IV-B, LP · CIK 0001726216 · 10% owner ENERGY CAPITAL PARTNERS IV-C, LP · CIK 0001726217 · 10% owner ENERGY CAPITAL PARTNERS IV-D, LP · CIK 0001726219 · 10% owner Energy Capital Partners IV-B (Hill City IP), LP · CIK 0002032499 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 2,776,072 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F2 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.38 to $14.79. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 09, 2025 Filed Jul 11, 2025 20:30 UTC |
ECP Fiber Holdings GP, LLC10% owner
ECP Fiber Holdings, LP10% owner
Hill City Holdings GP, LLC10% owner
Hill City Holdings, LP10% owner
|
PurchaseCommon Stock | 17,687 | $14.54 | $257,204.35 |
DisclosureSEC source: 0001641172-25-018769 · ownership.xml · nonDerivative · entry 1 ECP Fiber Holdings GP, LLC · CIK 0002032452 · 10% owner ECP Fiber Holdings, LP · CIK 0002032502 · 10% owner Hill City Holdings GP, LLC · CIK 0002032495 · 10% owner Hill City Holdings, LP · CIK 0001881388 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 2,776,072 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F2 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.38 to $14.79. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 08, 2025 Filed Jul 9, 2025 20:30 UTC |
ECP Fiber Holdings GP, LLC10% owner
ECP Fiber Holdings, LP10% owner
Hill City Holdings GP, LLC10% owner
Hill City Holdings, LP10% owner
|
PurchaseCommon Stock | 28,700 | $14.67 | $421,003.17 |
DisclosureSEC source: 0001641172-25-018417 · ownership.xml · nonDerivative · entry 2 ECP Fiber Holdings GP, LLC · CIK 0002032452 · 10% owner ECP Fiber Holdings, LP · CIK 0002032502 · 10% owner Hill City Holdings GP, LLC · CIK 0002032495 · 10% owner Hill City Holdings, LP · CIK 0001881388 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 2,758,385 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F5 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.40 to $14.81. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 08, 2025 Filed Jul 9, 2025 20:30 UTC |
ECP ControlCo, LLC10% owner
Energy Capital Partners IV, LLC10% owner
Energy Capital Partners GP IV, LP10% owner
ENERGY CAPITAL PARTNERS IV-A, LP10% owner
ENERGY CAPITAL PARTNERS IV-B, LP10% owner
ENERGY CAPITAL PARTNERS IV-C, LP10% owner
ENERGY CAPITAL PARTNERS IV-D, LP10% owner
|
PurchaseCommon Stock | 28,700 | $14.67 | $421,003.17 |
DisclosureSEC source: 0001641172-25-018415 · ownership.xml · nonDerivative · entry 2 ECP ControlCo, LLC · CIK 0001707921 · 10% owner Energy Capital Partners IV, LLC · CIK 0001845291 · 10% owner Energy Capital Partners GP IV, LP · CIK 0001844921 · 10% owner ENERGY CAPITAL PARTNERS IV-A, LP · CIK 0001726198 · 10% owner ENERGY CAPITAL PARTNERS IV-B, LP · CIK 0001726216 · 10% owner ENERGY CAPITAL PARTNERS IV-C, LP · CIK 0001726217 · 10% owner ENERGY CAPITAL PARTNERS IV-D, LP · CIK 0001726219 · 10% owner Energy Capital Partners IV-B (Hill City IP), LP · CIK 0002032499 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 2,758,385 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F5 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.40 to $14.81. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 07, 2025 Filed Jul 9, 2025 20:30 UTC |
ECP Fiber Holdings GP, LLC10% owner
ECP Fiber Holdings, LP10% owner
Hill City Holdings GP, LLC10% owner
Hill City Holdings, LP10% owner
|
PurchaseCommon Stock | 15,314 | $14.40 | $220,478.72 |
DisclosureSEC source: 0001641172-25-018417 · ownership.xml · nonDerivative · entry 1 ECP Fiber Holdings GP, LLC · CIK 0002032452 · 10% owner ECP Fiber Holdings, LP · CIK 0002032502 · 10% owner Hill City Holdings GP, LLC · CIK 0002032495 · 10% owner Hill City Holdings, LP · CIK 0001881388 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 2,729,685 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F2 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.29 to $14.51. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 07, 2025 Filed Jul 9, 2025 20:30 UTC |
ECP ControlCo, LLC10% owner
Energy Capital Partners IV, LLC10% owner
Energy Capital Partners GP IV, LP10% owner
ENERGY CAPITAL PARTNERS IV-A, LP10% owner
ENERGY CAPITAL PARTNERS IV-B, LP10% owner
ENERGY CAPITAL PARTNERS IV-C, LP10% owner
ENERGY CAPITAL PARTNERS IV-D, LP10% owner
|
PurchaseCommon Stock | 15,314 | $14.40 | $220,478.72 |
DisclosureSEC source: 0001641172-25-018415 · ownership.xml · nonDerivative · entry 1 ECP ControlCo, LLC · CIK 0001707921 · 10% owner Energy Capital Partners IV, LLC · CIK 0001845291 · 10% owner Energy Capital Partners GP IV, LP · CIK 0001844921 · 10% owner ENERGY CAPITAL PARTNERS IV-A, LP · CIK 0001726198 · 10% owner ENERGY CAPITAL PARTNERS IV-B, LP · CIK 0001726216 · 10% owner ENERGY CAPITAL PARTNERS IV-C, LP · CIK 0001726217 · 10% owner ENERGY CAPITAL PARTNERS IV-D, LP · CIK 0001726219 · 10% owner Energy Capital Partners IV-B (Hill City IP), LP · CIK 0002032499 · 10% owner Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Plan reported Ownership: Indirect · See Footnotes Disclosed balance after: 2,729,685 F1 · kind: The purchases reported herein were effected pursuant to a Rule 10b5-1 plan adopted by Hill City Holdings, LP ("Hill City") on June 5, 2025. F2 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.29 to $14.51. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. F3 · ownership.nature: The securities are held of record by Hill City. ECP ControlCo, LLC is the managing member of Energy Capital Partners IV, LLC, which is the general partner of Energy Capital Partners GP IV, LP, which is the general partner of each of (i) Energy Capital Partners IV-A, LP, (ii) Energy Capital Partners IV-B, LP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP (the "Funds"). Energy Capital Partners GP IV, LP is also the general partner of Energy Capital Partners IV-B (Hill City IP), LP ("Hill City IP"). Each of (i) Energy Capital Partners IV-A, LP, (ii) Hill City IP, (iii) Energy Capital Partners IV-C, LP, and (iv) Energy Capital Partners IV-D, LP are the members of Hill City Holdings GP, LLC, which is the general partner of Hill City. F4 · ownership.nature: ECP ControlCo, LLC is controlled by its board of managers, which consists of Douglas Kimmelman, Peter Labbat, Tyler Reeder, Rahman D'Argenio, Raoul Hughes and Xavier Robert, all of whom collectively share the power to vote and dispose of the securities beneficially owned by ECP ControlCo, LLC. As a result of these relationships, each of the foregoing entities and individuals may be deemed to share beneficial ownership of the securities held of record by Hill City. Each such entity and individual disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein. Read SEC document |
| July 01, 2025 Filed Jul 1, 2025 23:31 UTC |
SCHULTZ LEIGH ANNDirector
|
GrantCommon Stock | 48.8045 | $13.66 | $666.67 |
DisclosureSEC source: 0000354963-25-000188 · form4.xml · nonDerivative · entry 1 SCHULTZ LEIGH ANN · CIK 0001680184 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 25,814.7853 F1 · kind: Shares received in lieu of director fees. Read SEC document |
| July 01, 2025 Filed Jul 1, 2025 23:26 UTC |
Rhymes Michael AnthonyDirector
|
GrantCommon Stock | 36.6032 | $13.66 | $500.00 |
DisclosureSEC source: 0000354963-25-000186 · form4.xml · nonDerivative · entry 1 Rhymes Michael Anthony · CIK 0002031312 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 2,907.3515 F1 · kind: Shares received in lieu of director fees. Read SEC document |
| July 01, 2025 Filed Jul 1, 2025 23:21 UTC |
QUAGLIO KENNETH LDirector
|
GrantCommon Stock | 45.754 | $13.66 | $625.00 |
DisclosureSEC source: 0000354963-25-000184 · form4.xml · nonDerivative · entry 1 QUAGLIO KENNETH L · CIK 0001697225 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 26,291.0042 F1 · kind: Shares received in lieu of director fees. Read SEC document |
| July 01, 2025 Filed Jul 1, 2025 23:16 UTC |
Koontz Richard L JrDirector
|
GrantCommon Stock | 36.6032 | $13.66 | $500.00 |
DisclosureSEC source: 0000354963-25-000182 · form4.xml · nonDerivative · entry 1 Koontz Richard L Jr · CIK 0001361555 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 59,812.3518 F1 · kind: Shares received in lieu of director fees. Read SEC document |
| July 01, 2025 Filed Jul 1, 2025 23:04 UTC |
Fitzsimmons TracyDirector
|
GrantCommon Stock | 76.257 | $13.66 | $1,041.67 |
DisclosureSEC source: 0000354963-25-000180 · form4.xml · nonDerivative · entry 1 Fitzsimmons Tracy · CIK 0001326070 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 44,567.6173 F1 · kind: Shares received in lieu of director fees. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.