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 |
|---|---|---|---|---|---|---|
| September 02, 2025 Filed Sep 2, 2025 22:28 UTC |
QUAGLIO KENNETH LDirector
|
GrantCommon Stock | 47.1698 | $13.25 | $625.00 |
DisclosureSEC source: 0000354963-25-000240 · form4.xml · nonDerivative · entry 1 QUAGLIO KENNETH L · CIK 0001697225 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 26,380.7489 F1 · kind: Shares received in lieu of director fees. Read SEC document |
| September 02, 2025 Filed Sep 2, 2025 22:26 UTC |
Koontz Richard L JrDirector
|
GrantCommon Stock | 37.7358 | $13.25 | $500.00 |
DisclosureSEC source: 0000354963-25-000239 · form4.xml · nonDerivative · entry 1 Koontz Richard L Jr · CIK 0001361555 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 59,884.1475 F1 · kind: Shares received in lieu of director fees. Read SEC document |
| September 02, 2025 Filed Sep 2, 2025 22:25 UTC |
Fitzsimmons TracyDirector
|
GrantCommon Stock | 78.6166 | $13.25 | $1,041.67 |
DisclosureSEC source: 0000354963-25-000238 · form4.xml · nonDerivative · entry 1 Fitzsimmons Tracy · CIK 0001326070 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 44,717.1923 F1 · kind: Shares received in lieu of director fees. Read SEC document |
| September 02, 2025 Filed Sep 2, 2025 22:23 UTC |
Beckett ThomasDirector
|
GrantCommon | 30.1887 | $13.25 | $400.00 |
DisclosureSEC source: 0000354963-25-000237 · form4.xml · nonDerivative · entry 1 Beckett Thomas · CIK 0001490436 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 22,709.759 F1 · kind: Shares received in lieu of director fees. Read SEC document |
| September 02, 2025 Filed Sep 2, 2025 22:22 UTC |
BARNES VICTOR CHRISTOPHERDirector
|
GrantCommon Stock | 61.6355 | $13.25 | $816.67 |
DisclosureSEC source: 0000354963-25-000236 · form4.xml · nonDerivative · entry 1 BARNES VICTOR CHRISTOPHER · CIK 0001914490 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 16,030.263 F1 · kind: Shares received in lieu of director fees. Read SEC document |
| September 02, 2025 Filed Sep 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 | 28,951 | $13.01 | $376,591.71 |
DisclosureSEC source: 0001641172-25-026594 · 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: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 3,406,184 F1 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $12.92 to $13.30. 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. F2 · 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. F3 · 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 |
| September 02, 2025 Filed Sep 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 | 28,951 | $13.01 | $376,591.71 |
DisclosureSEC source: 0001641172-25-026593 · 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: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 3,406,184 F1 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $12.92 to $13.30. 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. F2 · 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. F3 · 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 29, 2025 Filed Sep 2, 2025 21:23 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 | 12,000 | $13.25 | $159,018.00 |
DisclosureSEC source: 0001641172-25-026239 · 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: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 3,377,233 F4 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $13.19 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. F2 · 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. F3 · 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 29, 2025 Filed Sep 2, 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 | 12,000 | $13.25 | $159,018.00 |
DisclosureSEC source: 0001641172-25-026217 · 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: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 3,377,233 F4 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $13.19 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. F2 · 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. F3 · 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 28, 2025 Filed Sep 2, 2025 21:23 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 | 14,358 | $13.26 | $190,434.46 |
DisclosureSEC source: 0001641172-25-026239 · 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: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 3,365,233 F1 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $13.20 to $13.35. 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. F2 · 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. F3 · 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 28, 2025 Filed Sep 2, 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 | 14,358 | $13.26 | $190,434.46 |
DisclosureSEC source: 0001641172-25-026217 · 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: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 3,365,233 F1 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $13.20 to $13.35. 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. F2 · 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. F3 · 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 27, 2025 Filed Aug 28, 2025 20:15 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 | 200 | $13.35 | $2,669.00 |
DisclosureSEC source: 0001641172-25-025809 · 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: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 3,350,875 F4 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $13.34 to $13.35. 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. F2 · 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. F3 · 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 27, 2025 Filed Aug 28, 2025 20:15 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 | 200 | $13.35 | $2,669.00 |
DisclosureSEC source: 0001641172-25-025810 · 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: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 3,350,875 F4 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $13.34 to $13.35. 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. F2 · 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. F3 · 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 26, 2025 Filed Aug 28, 2025 20:15 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 | 7,053 | $13.27 | $93,564.39 |
DisclosureSEC source: 0001641172-25-025809 · 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: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 3,350,675 F1 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $13.24 to $13.30. 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. F2 · 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. F3 · 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 26, 2025 Filed Aug 28, 2025 20:15 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 | 7,053 | $13.27 | $93,564.39 |
DisclosureSEC source: 0001641172-25-025810 · 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: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 3,350,675 F1 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $13.24 to $13.30. 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. F2 · 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. F3 · 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 25, 2025 Filed Aug 26, 2025 20:46 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 | 1,500 | $13.10 | $19,648.35 |
DisclosureSEC source: 0001641172-25-025551 · 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: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 3,343,622 F4 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $12.95 to $13.24. 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. F2 · 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. F3 · 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 25, 2025 Filed Aug 26, 2025 20:45 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 | 1,500 | $13.10 | $19,648.35 |
DisclosureSEC source: 0001641172-25-025549 · 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: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 3,343,622 F4 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $12.95 to $13.24. 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. F2 · 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. F3 · 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 22, 2025 Filed Aug 26, 2025 20:46 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 | 4,000 | $13.09 | $52,360.00 |
DisclosureSEC source: 0001641172-25-025551 · 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: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 3,342,122 F1 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $12.75 to $13.22. 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. F2 · 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. F3 · 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 22, 2025 Filed Aug 26, 2025 20:45 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 | 4,000 | $13.09 | $52,360.00 |
DisclosureSEC source: 0001641172-25-025549 · 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: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 3,342,122 F1 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $12.75 to $13.22. 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. F2 · 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. F3 · 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 21, 2025 Filed Aug 22, 2025 20:15 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 | 9,059 | $12.66 | $114,652.52 |
DisclosureSEC source: 0001641172-25-025217 · 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: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 3,338,122 F4 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $12.42 to $12.74. 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. F2 · 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. F3 · 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 21, 2025 Filed Aug 22, 2025 20:15 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 | 9,059 | $12.66 | $114,652.52 |
DisclosureSEC source: 0001641172-25-025215 · 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: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 3,338,122 F4 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $12.42 to $12.74. 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. F2 · 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. F3 · 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 20, 2025 Filed Aug 22, 2025 20:15 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 | 15,433 | $12.52 | $193,188.75 |
DisclosureSEC source: 0001641172-25-025217 · 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: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 3,329,063 F1 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $12.47 to $12.6248. 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. F2 · 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. F3 · 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 20, 2025 Filed Aug 22, 2025 20:15 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 | 15,433 | $12.52 | $193,188.75 |
DisclosureSEC source: 0001641172-25-025215 · 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: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 3,329,063 F1 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $12.47 to $12.6248. 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. F2 · 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. F3 · 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 19, 2025 Filed Aug 20, 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 | 10,560 | $12.54 | $132,393.89 |
DisclosureSEC source: 0001641172-25-024983 · 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: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 3,313,630 F4 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $12.47 to $12.59. 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. F2 · 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. F3 · 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 19, 2025 Filed Aug 20, 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 | 10,560 | $12.54 | $132,393.89 |
DisclosureSEC source: 0001641172-25-024982 · 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: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 3,313,630 F4 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $12.47 to $12.59. 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. F2 · 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. F3 · 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 18, 2025 Filed Aug 20, 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 | 20,047 | $12.52 | $250,944.34 |
DisclosureSEC source: 0001641172-25-024983 · 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: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 3,303,070 F1 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $12.46 to $12.65. 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. F2 · 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. F3 · 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 18, 2025 Filed Aug 20, 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 | 20,047 | $12.52 | $250,944.34 |
DisclosureSEC source: 0001641172-25-024982 · 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: No plan indicated Ownership: Indirect · See Footnotes Disclosed balance after: 3,303,070 F1 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $12.46 to $12.65. 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. F2 · 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. F3 · 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 13, 2025 Filed Aug 14, 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 | 1,473 | $12.87 | $18,962.67 |
DisclosureSEC source: 0001641172-25-024079 · 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: 3,283,023 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 $12.8041 to $13.12. 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 |
| August 13, 2025 Filed Aug 14, 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 | 1,473 | $12.87 | $18,962.67 |
DisclosureSEC source: 0001641172-25-024072 · 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: 3,283,023 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 $12.8041 to $13.12. 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 IVC, 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 12, 2025 Filed Aug 14, 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 | 30,000 | $12.59 | $377,763.00 |
DisclosureSEC source: 0001641172-25-024079 · 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: 3,281,550 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 $12.27 to $12.755. 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 12, 2025 Filed Aug 14, 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 | 30,000 | $12.59 | $377,763.00 |
DisclosureSEC source: 0001641172-25-024072 · 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: 3,281,550 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 $12.27 to $12.755. 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 IVC, 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 11, 2025 Filed Aug 12, 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 | 30,000 | $11.88 | $356,460.00 |
DisclosureSEC source: 0001641172-25-023208 · 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: 3,251,550 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 $11.71 to $12.265. 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 11, 2025 Filed Aug 12, 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 | 30,000 | $11.88 | $356,460.00 |
DisclosureSEC source: 0001641172-25-023207 · 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: 3,251,550 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 $11.71 to $12.265. 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 11, 2025 Filed Aug 12, 2025 13:00 UTC |
FRENCH CHRISTOPHER EPresident & CEO
|
PurchaseCommon Stock | 16,800 | $11.83 | $198,676.80 |
DisclosureSEC source: 0000354963-25-000227 · form4.xml · nonDerivative · entry 1 FRENCH CHRISTOPHER E · CIK 0001120042 · President & CEO 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 410,517 F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $11.7550 to $11.88, inclusive. The reporting person undertakes to provide Shenandoah Telecommunications Company, any security holder of Shenandoah Telecommunications Company or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote. Read SEC document |
| August 08, 2025 Filed Aug 12, 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 | 30,000 | $12.52 | $375,510.00 |
DisclosureSEC source: 0001641172-25-023208 · 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: 3,221,550 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 $12.16 to $13.02. 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 08, 2025 Filed Aug 12, 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 | 30,000 | $12.52 | $375,510.00 |
DisclosureSEC source: 0001641172-25-023207 · 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: 3,221,550 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 $12.16 to $13.02. 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 07, 2025 Filed Aug 8, 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 | 25,104 | $12.71 | $319,081.88 |
DisclosureSEC source: 0001641172-25-022781 · 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: 3,191,550 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 $12.43 to $13.055. 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 07, 2025 Filed Aug 8, 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 | 25,104 | $12.71 | $319,081.88 |
DisclosureSEC source: 0001641172-25-022778 · 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: 3,191,550 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 $12.43 to $13.055. 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 06, 2025 Filed Aug 8, 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 | 22,085 | $13.01 | $287,352.35 |
DisclosureSEC source: 0001641172-25-022781 · 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: 3,166,446 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 $12.88 to $13.35. 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 06, 2025 Filed Aug 8, 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 | 22,085 | $13.01 | $287,352.35 |
DisclosureSEC source: 0001641172-25-022778 · 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: 3,166,446 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 $12.88 to $13.35. 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 05, 2025 Filed Aug 6, 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 | 26,117 | $13.12 | $342,594.97 |
DisclosureSEC source: 0001641172-25-022437 · 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: 3,144,361 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. F5 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $12.92 to $13.30. 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 05, 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 | 26,117 | $13.12 | $342,594.97 |
DisclosureSEC source: 0001641172-25-022436 · 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: 3,144,361 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. F5 · price: The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $12.92 to $13.30. 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 04, 2025 Filed Aug 4, 2025 21:54 UTC |
SCHULTZ LEIGH ANNDirector
|
GrantCommon Stock | 45.4135 | $14.68 | $666.67 |
DisclosureSEC source: 0000354963-25-000224 · form4.xml · nonDerivative · entry 1 SCHULTZ LEIGH ANN · CIK 0001680184 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 25,860.1988 F1 · kind: Shares received in lieu of director fees. Read SEC document |
| August 04, 2025 Filed Aug 4, 2025 21:48 UTC |
Rhymes Michael AnthonyDirector
|
GrantCommon Stock | 34.0599 | $14.69 | $500.34 |
DisclosureSEC source: 0000354963-25-000222 · form4.xml · nonDerivative · entry 1 Rhymes Michael Anthony · CIK 0002031312 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 2,941.4114 F1 · kind: Shares received in lieu of director fees. Read SEC document |
| August 04, 2025 Filed Aug 4, 2025 21:44 UTC |
QUAGLIO KENNETH LDirector
|
GrantCommon Stock | 42.5749 | $14.69 | $625.43 |
DisclosureSEC source: 0000354963-25-000220 · form4.xml · nonDerivative · entry 1 QUAGLIO KENNETH L · CIK 0001697225 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 26,333.5791 F1 · kind: Shares received in lieu of director fees. Read SEC document |
| August 04, 2025 Filed Aug 4, 2025 21:35 UTC |
Koontz Richard L JrDirector
|
GrantCommon Stock | 34.0599 | $14.69 | $500.34 |
DisclosureSEC source: 0000354963-25-000218 · form4.xml · nonDerivative · entry 1 Koontz Richard L Jr · CIK 0001361555 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 59,846.4117 F1 · kind: Shares received in lieu of director fees. Read SEC document |
| August 04, 2025 Filed Aug 4, 2025 21:30 UTC |
Fitzsimmons TracyDirector
|
GrantCommon Stock | 70.9584 | $14.69 | $1,042.38 |
DisclosureSEC source: 0000354963-25-000216 · form4.xml · nonDerivative · entry 1 Fitzsimmons Tracy · CIK 0001326070 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 44,638.5757 F1 · kind: Shares received in lieu of director fees. Read SEC document |
| August 04, 2025 Filed Aug 4, 2025 21:25 UTC |
Beckett ThomasDirector
|
GrantCommon | 27.248 | $14.69 | $400.27 |
DisclosureSEC source: 0000354963-25-000214 · form4.xml · nonDerivative · entry 1 Beckett Thomas · CIK 0001490436 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 22,679.5703 F1 · kind: Shares received in lieu of director fees. Read SEC document |
| August 04, 2025 Filed Aug 4, 2025 21:16 UTC |
BARNES VICTOR CHRISTOPHERDirector
|
GrantCommon Stock | 55.6315 | $14.69 | $817.23 |
DisclosureSEC source: 0000354963-25-000212 · form4.xml · nonDerivative · entry 1 BARNES VICTOR CHRISTOPHER · CIK 0001914490 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 15,968.6275 F1 · kind: Shares received in lieu of director fees. Read SEC document |
| August 04, 2025 Filed Aug 6, 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 | 23,703 | $13.00 | $308,032.34 |
DisclosureSEC source: 0001641172-25-022437 · 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: 3,118,244 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 |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.