Tapewire

Nasdaq · USD

EOSE

Eos Energy Enterprises, Inc.

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Tapewire entity
4901
SEC CIK
0001805077
Parsed reports
318

Last 12 months

Inside the activity.

6 purchase rows · 23 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
Monthly counts
MonthPurchasesSales
Nov 202500
Dec 202507
Jan 202602
Feb 202600
Mar 202640
Apr 202600
May 202603
Jun 202604
Jul 202604
Aug 202600
Sep 202623
Oct 202600

Latest available

Insider transactions

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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 dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
May 28, 2026 Filed May 29, 2026 20:01 UTC SaleCommon Stock 30,000 $9.18 $275,400.00
Disclosure

SEC source: 0001628280-26-039131 · wk-form4_1780084890.xml · nonDerivative · entry 2

Walters Marian · CIK 0001782905 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 158,445

Read SEC document
May 28, 2026 Filed May 29, 2026 20:01 UTC Exercise / conversionCommon Stock 30,000 $1.18 $35,400.00
Disclosure

SEC source: 0001628280-26-039131 · wk-form4_1780084890.xml · nonDerivative · entry 1

Walters Marian · CIK 0001782905 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 188,445

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
May 20, 2026 Filed May 22, 2026 20:02 UTC Exercise / conversionStock Option (Right to Buy) · Derivative 22,319 $0.00 Strike: $1.18 $0.00
Disclosure

SEC source: 0001628280-26-037697 · wk-form4_1779480123.xml · derivative · entry 4

Walters Marian · CIK 0001782905 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 65,018

Underlying: Common Stock · 22,319 shares

Expires 2027-05-19

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: On May 19, 2022 the reporting person was granted stock options to purchase 145,018 shares of common stock which vested on May 19, 2023. 57,681 of these stock options were previously exercised on December 4, 2025 and May 19, 2026.

Read SEC document
May 20, 2026 Filed May 22, 2026 20:02 UTC SaleCommon Stock 22,319 $7.20 $160,696.80
Disclosure

SEC source: 0001628280-26-037697 · wk-form4_1779480123.xml · nonDerivative · entry 2

Walters Marian · CIK 0001782905 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 158,445

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.04 to $7.26, inclusive. 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 sold at each separate price within the range set forth above.

Read SEC document
May 20, 2026 Filed May 22, 2026 20:02 UTC Exercise / conversionCommon Stock 22,319 $1.18 $26,336.42
Disclosure

SEC source: 0001628280-26-037697 · wk-form4_1779480123.xml · nonDerivative · entry 1

Walters Marian · CIK 0001782905 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 180,764

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
May 19, 2026 Filed May 19, 2026 23:29 UTC
Demby ClaudeDirector
Exercise / conversionRestricted Stock Units · Derivative 23,111 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-036654 · wk-form4_1779233393.xml · derivative · entry 3

Demby Claude · CIK 0001855640 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 23,111 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

F3 · derivative.exercise_date: Not applicable.

F3 · derivative.expiration_date: Not applicable.

Read SEC document
May 19, 2026 Filed May 19, 2026 23:29 UTC
Demby ClaudeDirector
Disposition to issuerCommon Stock 9,244 $6.88 $63,598.72
Disclosure

SEC source: 0001628280-26-036654 · wk-form4_1779233393.xml · nonDerivative · entry 2

Demby Claude · CIK 0001855640 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 155,575

F2 · shares: Represents the cash settlement on May 19, 2026 of RSUs granted on May 19, 2025. Each RSU was settled for $6.88, the closing price per share of common stock of the Company on May 19, 2026. No shares were actually issued to the reporting person, nor did the reporting person dispose of any shares.

Read SEC document
May 19, 2026 Filed May 19, 2026 23:29 UTC
Demby ClaudeDirector
Exercise / conversionCommon Stock 23,111 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-036654 · wk-form4_1779233393.xml · nonDerivative · entry 1

Demby Claude · CIK 0001855640 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 164,819

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

Read SEC document
May 19, 2026 Filed May 19, 2026 23:33 UTC
McNeil JeffDirector
Exercise / conversionRestricted Stock Units · Derivative 23,111 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-036657 · wk-form4_1779233604.xml · derivative · entry 3

McNeil Jeff · CIK 0001776803 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 23,111 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

F3 · derivative.exercise_date: Not applicable.

F3 · derivative.expiration_date: Not applicable.

Read SEC document
May 19, 2026 Filed May 19, 2026 23:33 UTC
McNeil JeffDirector
Exercise / conversionCommon Stock 23,111 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-036657 · wk-form4_1779233604.xml · nonDerivative · entry 1

McNeil Jeff · CIK 0001776803 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 122,290

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

Read SEC document
May 19, 2026 Filed May 19, 2026 23:31 UTC Exercise / conversionRestricted Stock Units · Derivative 30,815 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-036656 · wk-form4_1779233491.xml · derivative · entry 4

Bornstein Jeffrey S · CIK 0001579989 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 30,815 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

F3 · derivative.exercise_date: Not applicable.

F3 · derivative.expiration_date: Not applicable.

Read SEC document
May 19, 2026 Filed May 19, 2026 23:31 UTC Disposition to issuerCommon Stock 12,326 $6.88 $84,802.88
Disclosure

SEC source: 0001628280-26-036656 · wk-form4_1779233491.xml · nonDerivative · entry 2

Bornstein Jeffrey S · CIK 0001579989 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 134,248

F2 · shares: Represents the cash settlement on May 19, 2026 of RSUs granted on May 19, 2025. Each RSU was settled for $6.88, the closing price per share of common stock of the Company on May 19, 2026. No shares were actually issued to the reporting person, nor did the reporting person dispose of any shares.

Read SEC document
May 19, 2026 Filed May 19, 2026 23:31 UTC Exercise / conversionCommon Stock 30,815 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-036656 · wk-form4_1779233491.xml · nonDerivative · entry 1

Bornstein Jeffrey S · CIK 0001579989 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 146,574

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

Read SEC document
May 19, 2026 Filed May 19, 2026 23:28 UTC Exercise / conversionRestricted Stock Units · Derivative 26,963 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-036653 · wk-form4_1779233320.xml · derivative · entry 4

DIMITRIEF ALEXANDER · CIK 0001614732 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 26,963 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

F3 · derivative.exercise_date: Not applicable.

F3 · derivative.expiration_date: Not applicable.

Read SEC document
May 19, 2026 Filed May 19, 2026 23:28 UTC Disposition to issuerCommon Stock 10,785 $6.88 $74,200.80
Disclosure

SEC source: 0001628280-26-036653 · wk-form4_1779233320.xml · nonDerivative · entry 2

DIMITRIEF ALEXANDER · CIK 0001614732 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 251,399

F2 · shares: Represents the cash settlement on May 19, 2026 of RSUs granted on May 19, 2025. Each RSU was settled for $6.88, the closing price per share of common stock of the Company on May 19, 2026. No shares were actually issued to the reporting person, nor did the reporting person dispose of any shares.

Read SEC document
May 19, 2026 Filed May 19, 2026 23:28 UTC Exercise / conversionCommon Stock 26,963 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-036653 · wk-form4_1779233320.xml · nonDerivative · entry 1

DIMITRIEF ALEXANDER · CIK 0001614732 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 262,184

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

Read SEC document
May 19, 2026 Filed May 19, 2026 23:27 UTC Exercise / conversionRestricted Stock Units · Derivative 23,111 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-036652 · wk-form4_1779233236.xml · derivative · entry 3

Nixon Gregory S. · CIK 0001472627 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 23,111 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

F3 · derivative.exercise_date: Not applicable.

F3 · derivative.expiration_date: Not applicable.

Read SEC document
May 19, 2026 Filed May 19, 2026 23:27 UTC Disposition to issuerCommon Stock 9,244 $6.88 $63,598.72
Disclosure

SEC source: 0001628280-26-036652 · wk-form4_1779233236.xml · nonDerivative · entry 2

Nixon Gregory S. · CIK 0001472627 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,867

F2 · shares: Represents the cash settlement on May 19, 2026 of RSUs granted on May 19, 2025. Each RSU was settled for $6.88, the closing price per share of common stock of the Company on May 19, 2026. No shares were actually issued to the reporting person, nor did the reporting person dispose of any shares.

Read SEC document
May 19, 2026 Filed May 19, 2026 23:27 UTC GrantCommon Stock 23,111 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-036652 · wk-form4_1779233236.xml · nonDerivative · entry 1

Nixon Gregory S. · CIK 0001472627 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,111

F1 · acquired: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

Read SEC document
May 19, 2026 Filed May 19, 2026 23:25 UTC Exercise / conversionStock Option (Right to Buy) · Derivative 7,681 $0.00 Strike: $1.18 $0.00
Disclosure

SEC source: 0001628280-26-036651 · wk-form4_1779233109.xml · derivative · entry 6

Walters Marian · CIK 0001782905 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 87,337

Underlying: Common Stock · 7,681 shares

Expires 2027-05-19

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_date: On May 19, 2022 the reporting person was granted stock options to purchase 145,018 shares of common stock which vested on May 19, 2023. 50,000 of these stock options were previously exercised on December 4, 2025.

Read SEC document
May 19, 2026 Filed May 19, 2026 23:25 UTC Exercise / conversionRestricted Stock Units · Derivative 23,111 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-036651 · wk-form4_1779233109.xml · derivative · entry 5

Walters Marian · CIK 0001782905 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 23,111 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

F4 · derivative.exercise_date: Not applicable.

F4 · derivative.expiration_date: Not applicable.

Read SEC document
May 19, 2026 Filed May 19, 2026 23:25 UTC Exercise / conversionCommon Stock 23,111 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-036651 · wk-form4_1779233109.xml · nonDerivative · entry 3

Walters Marian · CIK 0001782905 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 158,445

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

Read SEC document
May 19, 2026 Filed May 19, 2026 23:25 UTC SaleCommon Stock 7,681 $7.07 $54,304.67
Disclosure

SEC source: 0001628280-26-036651 · wk-form4_1779233109.xml · nonDerivative · entry 2

Walters Marian · CIK 0001782905 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 135,334

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $7.01 to $7.24, inclusive. 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 sold at each separate price within the range set forth above.

Read SEC document
May 19, 2026 Filed May 19, 2026 23:25 UTC Exercise / conversionCommon Stock 7,681 $1.18 $9,063.58
Disclosure

SEC source: 0001628280-26-036651 · wk-form4_1779233109.xml · nonDerivative · entry 1

Walters Marian · CIK 0001782905 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 143,015

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
May 19, 2026 Filed May 19, 2026 23:22 UTC
Urban DavidDirector
Exercise / conversionRestricted Stock Units · Derivative 23,111 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-036648 · wk-form4_1779232927.xml · derivative · entry 2

Urban David · CIK 0001762220 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 23,111 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

F2 · derivative.exercise_date: Not applicable.

F2 · derivative.expiration_date: Not applicable.

Read SEC document
May 19, 2026 Filed May 19, 2026 23:22 UTC
Urban DavidDirector
Exercise / conversionCommon Stock 23,111 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-036648 · wk-form4_1779232927.xml · nonDerivative · entry 1

Urban David · CIK 0001762220 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 85,582

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

Read SEC document
March 09, 2026 Filed Mar 10, 2026 12:52 UTC
Urban DavidDirector
PurchaseCommon Stock 16,250 $6.16 $100,100.00
Disclosure

SEC source: 0001628280-26-016249 · wk-form4_1773147161.xml · nonDerivative · entry 1

Urban David · CIK 0001762220 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 62,471

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $6.15 to $6.16, inclusive. The Reporting Person undertakes to provide to 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.

Read SEC document
March 04, 2026 Filed Mar 5, 2026 13:48 UTC
Mastrangelo JoeDirector · Chief Executive Officer
PurchaseCommon Stock 23,900 $6.58 $157,262.00
Disclosure

SEC source: 0001628280-26-015015 · wk-form4_1772718498.xml · nonDerivative · entry 1

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,487,126

Read SEC document
March 02, 2026 Filed Mar 3, 2026 14:00 UTC
Mastrangelo JoeDirector · Chief Executive Officer
PurchaseCommon Stock 60,000 $5.75 $345,000.00
Disclosure

SEC source: 0001628280-26-013586 · wk-form4_1772546447.xml · nonDerivative · entry 1

Mastrangelo Joe · CIK 0001833309 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,463,226

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $5.74 to $5.75, inclusive. The Reporting Person undertakes to provide to 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.

Read SEC document
March 02, 2026 Filed Mar 4, 2026 13:56 UTC PurchaseCommon Stock 15,000 $6.04 $90,600.00
Disclosure

SEC source: 0001628280-26-014413 · wk-form4_1772632573.xml · nonDerivative · entry 1

DIMITRIEF ALEXANDER · CIK 0001614732 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 235,221

Read SEC document
January 26, 2026 Filed Jan 26, 2026 21:52 UTC
Kroeker NathanCCO and Interim CFO
SaleCommon Stock 50,000 $16.04 $802,000.00
Disclosure

SEC source: 0001628280-26-003430 · wk-form4_1769464324.xml · nonDerivative · entry 2

Kroeker Nathan · CIK 0001613718 · CCO and Interim CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 662,512

F1 · kind: The sales reported in this Form 4 were effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 15, 2025 to cover estimated tax withholding obligations in connection with the vesting of restricted stock units.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.71 to $16.92, inclusive. 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 sold at each separate price within the range set forth above.

Read SEC document
January 23, 2026 Filed Jan 23, 2026 21:34 UTC
Silberman Michael WChief Legal Officer
SaleCommon Stock 41,667 $17.74 $739,172.58
Disclosure

SEC source: 0001628280-26-003307 · wk-form4_1769204095.xml · nonDerivative · entry 2

Silberman Michael W · CIK 0001813990 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 283,279

F1 · kind: The sales reported in this Form 4 were effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 15, 2025 to cover estimated tax withholding obligations in connection with the vesting of restricted stock units.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.27 to $18.26, inclusive. 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 sold at each separate price within the range set forth above.

Read SEC document
January 23, 2026 Filed Jan 26, 2026 21:52 UTC
Kroeker NathanCCO and Interim CFO
Exercise / conversionRestricted Stock Units · Derivative 100,000 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-003430 · wk-form4_1769464324.xml · derivative · entry 3

Kroeker Nathan · CIK 0001613718 · CCO and Interim CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 100,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: The reporting person received a grant of RSUs under the Issuer's 2020 Incentive Plan, which will vest in three equal installments on each of the first three anniversaries of the grant date, subject to continued service through each vesting date.

F4 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

F5 · derivative.exercise_date: Not applicable.

F5 · derivative.expiration_date: Not applicable.

Read SEC document
January 23, 2026 Filed Jan 26, 2026 21:52 UTC
Kroeker NathanCCO and Interim CFO
Exercise / conversionCommon Stock 100,000 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-003430 · wk-form4_1769464324.xml · nonDerivative · entry 1

Kroeker Nathan · CIK 0001613718 · CCO and Interim CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 712,512

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
January 22, 2026 Filed Jan 23, 2026 21:34 UTC
Silberman Michael WChief Legal Officer
Exercise / conversionRestricted Stock Units · Derivative 83,334 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-003307 · wk-form4_1769204095.xml · derivative · entry 3

Silberman Michael W · CIK 0001813990 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 83,333

Underlying: Common Stock · 83,334 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · security: The reporting person received a grant of RSUs under the Issuer's 2020 Incentive Plan, which will vest in three equal installments on each of the first three anniversaries of the grant date, subject to continued service through each vesting date.

F4 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

F5 · derivative.exercise_date: Not applicable.

F5 · derivative.expiration_date: Not applicable.

Read SEC document
January 22, 2026 Filed Jan 23, 2026 21:34 UTC
Silberman Michael WChief Legal Officer
Exercise / conversionCommon Stock 83,334 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-003307 · wk-form4_1769204095.xml · nonDerivative · entry 1

Silberman Michael W · CIK 0001813990 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 324,946

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
December 22, 2025 Filed Dec 23, 2025 21:04 UTC GrantRestricted Stock Units · Derivative 1,782 $0.00 $0.00
Disclosure

SEC source: 0001628280-25-058730 · wk-form4_1766523889.xml · derivative · entry 1

Walters Marian · CIK 0001782905 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,782

Underlying: Common Stock · 1,782 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

F2 · derivative.exercise_date: The reporting person was granted RSUs that settle in common stock, which will vest on the earlier of (i) the first anniversary of the grant date or (ii) immediately prior to the date of the next annual shareholders meeting of the Company following the grant date.

F3 · derivative.expiration_date: Not applicable.

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December 22, 2025 Filed Dec 23, 2025 21:03 UTC
Nigro JosephDirector
GrantRestricted Stock Units · Derivative 3,565 $0.00 $0.00
Disclosure

SEC source: 0001628280-25-058728 · wk-form4_1766523821.xml · derivative · entry 1

Nigro Joseph · CIK 0001740087 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,565

Underlying: Common Stock · 3,565 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock.

F2 · derivative.exercise_date: The reporting person was granted RSUs that settle in common stock, which will vest on the earlier of (i) the first anniversary of the grant date or (ii) immediately prior to the date of the next annual shareholders meeting of the Company following the grant date.

F3 · derivative.expiration_date: Not applicable.

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December 08, 2025 Filed Dec 9, 2025 02:13 UTC Exercise / conversionStock Option (Right to Buy) · Derivative 120,633 $0.00 Strike: $2.32 $0.00
Disclosure

SEC source: 0001628280-25-055938 · wk-form4_1765246384.xml · derivative · entry 17

Stidolph Russell Monoki · CIK 0001833275 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 120,633 shares

Expires 2028-05-18

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F9 · derivative.exercise_date: On May 18, 2023 the reporting person was granted stock options to purchase 120,633 shares of common stock which vested on April 30, 2024.

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December 08, 2025 Filed Dec 9, 2025 02:13 UTC Exercise / conversionStock Option (Right to Buy) · Derivative 145,018 $0.00 Strike: $1.18 $0.00
Disclosure

SEC source: 0001628280-25-055938 · wk-form4_1765246384.xml · derivative · entry 16

Stidolph Russell Monoki · CIK 0001833275 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 145,018 shares

Expires 2027-05-19

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F8 · derivative.exercise_date: On May 19, 2022 the reporting person was granted stock options to purchase 145,018 shares of common stock which vested on May 19, 2023.

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December 08, 2025 Filed Dec 9, 2025 02:13 UTC Exercise / conversionStock Option (Right to Buy) · Derivative 30,788 $0.00 Strike: $14.43 $0.00
Disclosure

SEC source: 0001628280-25-055938 · wk-form4_1765246384.xml · derivative · entry 15

Stidolph Russell Monoki · CIK 0001833275 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 30,788 shares

Expires 2025-12-08

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F7 · derivative.exercise_date: On December 8, 2020 the reporting person was granted stock options to purchase 30,788 shares of common stock which vested on June 15, 2021.

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December 08, 2025 Filed Dec 9, 2025 02:13 UTC SaleCommon Stock 235,367 $14.89 $3,504,614.63
Disclosure

SEC source: 0001628280-25-055938 · wk-form4_1765246384.xml · nonDerivative · entry 14

Stidolph Russell Monoki · CIK 0001833275 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 364,355

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions pursuant to a Cashless exercise / same-day sale at prices ranging from $14.68 to $15.16, inclusive. 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 sold at each separate price within the range set forth above.

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December 08, 2025 Filed Dec 9, 2025 02:13 UTC Tax withholdingCommon Stock 11,491 $14.89 $171,100.99
Disclosure

SEC source: 0001628280-25-055938 · wk-form4_1765246384.xml · nonDerivative · entry 13

Stidolph Russell Monoki · CIK 0001833275 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 599,722

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions pursuant to a Cashless exercise / same-day sale at prices ranging from $14.68 to $15.16, inclusive. 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 sold at each separate price within the range set forth above.

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December 08, 2025 Filed Dec 9, 2025 02:13 UTC Tax withholdingCommon Stock 18,793 $14.89 $279,827.77
Disclosure

SEC source: 0001628280-25-055938 · wk-form4_1765246384.xml · nonDerivative · entry 12

Stidolph Russell Monoki · CIK 0001833275 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 611,213

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions pursuant to a Cashless exercise / same-day sale at prices ranging from $14.68 to $15.16, inclusive. 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 sold at each separate price within the range set forth above.

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December 08, 2025 Filed Dec 9, 2025 02:13 UTC Exercise / conversionCommon Stock 120,633 $2.32 $279,868.56
Disclosure

SEC source: 0001628280-25-055938 · wk-form4_1765246384.xml · nonDerivative · entry 11

Stidolph Russell Monoki · CIK 0001833275 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 630,006

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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December 08, 2025 Filed Dec 9, 2025 02:13 UTC Exercise / conversionCommon Stock 145,018 $1.18 $171,121.24
Disclosure

SEC source: 0001628280-25-055938 · wk-form4_1765246384.xml · nonDerivative · entry 10

Stidolph Russell Monoki · CIK 0001833275 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 509,373

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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December 08, 2025 Filed Dec 9, 2025 02:13 UTC SaleCommon Stock 768 $14.80 $11,366.40
Disclosure

SEC source: 0001628280-25-055938 · wk-form4_1765246384.xml · nonDerivative · entry 9

Stidolph Russell Monoki · CIK 0001833275 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 364,355

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December 08, 2025 Filed Dec 9, 2025 02:13 UTC Tax withholdingCommon Stock 30,020 $14.80 $444,296.00
Disclosure

SEC source: 0001628280-25-055938 · wk-form4_1765246384.xml · nonDerivative · entry 8

Stidolph Russell Monoki · CIK 0001833275 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 365,123

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December 08, 2025 Filed Dec 9, 2025 02:13 UTC Exercise / conversionCommon Stock 30,788 $14.43 $444,270.84
Disclosure

SEC source: 0001628280-25-055938 · wk-form4_1765246384.xml · nonDerivative · entry 7

Stidolph Russell Monoki · CIK 0001833275 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 395,143

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
December 08, 2025 Filed Dec 9, 2025 02:13 UTC SaleCommon Stock 29,999 $15.36 $460,784.64
Disclosure

SEC source: 0001628280-25-055938 · wk-form4_1765246384.xml · nonDerivative · entry 2

Stidolph Russell Monoki · CIK 0001833275 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 2,123,273

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.28 to $15.45, inclusive. 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 sold at each separate price within the range set forth above.

F1 · ownership.nature: The shares reported in this Form 4 are shares of common stock in which Mr. Stidolph has a pecuniary interest in that are held directly by AltEnergy, LLC or AltEnergy Transmission, LLC. Mr. Stidolph is the managing director of AltEnergy, LLC and the managing member of AltEnergy Transmission, LLC and has voting and dispositive power with respect to the securities owned by AltEnergy, LLC and AltEnergy Transmission, LLC. Each of the Filing Persons disclaims beneficial ownership of the outstanding shares of common stock of the issuer reported herein except to the extent of its pecuniary interest therein.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.