STOCK TITAN

[Form 4] Solid Power, Inc. Warrant Insider Trading Activity

Filing Impact
(Low)
Filing Sentiment
(Negative)
Form Type
4
Rhea-AI Filing Summary

Solid Power, Inc. (SLDP) – Form 4 insider transaction

Chief Financial Officer, Treasurer and Secretary Linda C. Heller reported a single transaction dated 30 June 2025. The filing shows 25,950 common shares (transaction code F) were withheld at $2.15 per share to satisfy statutory tax withholding obligations arising from the vesting of restricted stock units. No open-market sale or purchase occurred, and there were no derivative security transactions reported.

Following the tax-related share withholding, the executive’s direct ownership stands at 1,856,797 common shares. No indirect holdings or new derivative securities were disclosed.

Because the shares were withheld rather than sold on the open market, the transaction is typically regarded as administrative and neutral with limited market significance. Nevertheless, the filing reaffirms that the CFO continues to hold a sizeable equity position in the company, maintaining an alignment of interests with outside shareholders.

Solid Power, Inc. (SLDP) – Transazione interna Form 4

La Chief Financial Officer, Tesoriere e Segretaria Linda C. Heller ha riportato una singola transazione datata 30 giugno 2025. Il documento mostra che 25.950 azioni ordinarie (codice transazione F) sono state trattenute a $2,15 per azione per adempiere agli obblighi fiscali derivanti dal consolidamento delle unità azionarie vincolate. Non si è verificata alcuna vendita o acquisto sul mercato aperto e non sono state segnalate transazioni su strumenti derivati.

Dopo la trattenuta delle azioni per motivi fiscali, la proprietà diretta dell’esecutivo ammonta a 1.856.797 azioni ordinarie. Non sono state dichiarate partecipazioni indirette né nuovi strumenti derivati.

Poiché le azioni sono state trattenute anziché vendute sul mercato aperto, la transazione è generalmente considerata amministrativa e neutra, con un impatto limitato sul mercato. Tuttavia, il documento conferma che la CFO mantiene una consistente posizione azionaria nella società, garantendo un allineamento di interessi con gli azionisti esterni.

Solid Power, Inc. (SLDP) – Transacción interna Formulario 4

La Directora Financiera, Tesorera y Secretaria Linda C. Heller reportó una única transacción con fecha 30 de junio de 2025. El informe muestra que 25.950 acciones ordinarias (código de transacción F) fueron retenidas a $2.15 por acción para cumplir con las obligaciones fiscales derivadas de la consolidación de unidades de acciones restringidas. No hubo ventas ni compras en el mercado abierto y no se reportaron transacciones con valores derivados.

Tras la retención de acciones por motivos fiscales, la propiedad directa de la ejecutiva es de 1.856.797 acciones ordinarias. No se declararon participaciones indirectas ni nuevos valores derivados.

Dado que las acciones fueron retenidas en lugar de vendidas en el mercado abierto, la transacción se considera generalmente administrativa y neutral, con un impacto limitado en el mercado. Sin embargo, el informe reafirma que la CFO mantiene una posición accionaria significativa en la compañía, alineando sus intereses con los de los accionistas externos.

Solid Power, Inc. (SLDP) – Form 4 내부자 거래 보고

최고재무책임자(CFO), 재무담당 및 비서인 Linda C. Heller2025년 6월 30일자로 단일 거래를 보고했습니다. 제출서류에 따르면 제한 주식 단위(RSU) 권리 확정에 따른 법정 세금 원천징수 의무를 충족하기 위해 25,950 보통주(거래 코드 F)가 주당 2.15달러에 원천징수되었습니다. 공개 시장에서의 매매는 없었으며 파생상품 거래도 보고되지 않았습니다.

세금 관련 주식 원천징수 후, 임원의 직접 보유 주식은 1,856,797 보통주입니다. 간접 보유 지분이나 신규 파생상품은 공개되지 않았습니다.

주식을 시장에서 판매하지 않고 원천징수했기 때문에 이 거래는 일반적으로 행정적이고 중립적으로 간주되며 시장에 미치는 영향은 제한적입니다. 그럼에도 불구하고 이 보고서는 CFO가 회사에 상당한 지분을 계속 보유하고 있음을 확인하며 외부 주주들과 이해관계가 일치함을 보여줍니다.

Solid Power, Inc. (SLDP) – Transaction d’initié Formulaire 4

La Directrice Financière, Trésorière et Secrétaire Linda C. Heller a déclaré une transaction unique datée du 30 juin 2025. Le dépôt montre que 25 950 actions ordinaires (code transaction F) ont été retenues à 2,15 $ par action pour satisfaire aux obligations fiscales légales liées à l’acquisition des unités d’actions restreintes. Aucune vente ou achat sur le marché libre n’a eu lieu, et aucune transaction sur titres dérivés n’a été signalée.

Après cette retenue d’actions liée à l’impôt, la détention directe de la dirigeante s’élève à 1 856 797 actions ordinaires. Aucune participation indirecte ni nouveaux titres dérivés n’ont été divulgués.

Étant donné que les actions ont été retenues plutôt que vendues sur le marché libre, la transaction est généralement considérée comme administrative et neutre avec une signification limitée pour le marché. Néanmoins, ce dépôt confirme que la CFO conserve une position importante au capital de la société, maintenant ainsi un alignement d’intérêts avec les actionnaires externes.

Solid Power, Inc. (SLDP) – Insider-Transaktion Form 4

Die Chief Financial Officer, Schatzmeisterin und Sekretärin Linda C. Heller meldete eine einzelne Transaktion vom 30. Juni 2025. Die Meldung zeigt, dass 25.950 Stammaktien (Transaktionscode F) zum Preis von 2,15 $ pro Aktie einbehalten wurden, um gesetzliche Steuerabzugsverpflichtungen im Zusammenhang mit der Vesting von Restricted Stock Units zu erfüllen. Kein Verkauf oder Kauf am offenen Markt fand statt, und es wurden keine Transaktionen mit Derivaten gemeldet.

Nach der steuerbedingten Aktienrückhaltung hält die Führungskraft direkt 1.856.797 Stammaktien. Keine indirekten Beteiligungen oder neuen Derivate wurden offengelegt.

Da die Aktien einbehalten und nicht am offenen Markt verkauft wurden, wird die Transaktion typischerweise als administrativ und neutral angesehen und hat eine begrenzte Marktbedeutung. Dennoch bestätigt die Meldung, dass die CFO weiterhin eine bedeutende Beteiligung am Unternehmen hält und somit ihre Interessen mit denen der externen Aktionäre in Einklang bringt.

Positive
  • CFO retains 1,856,797 common shares after the transaction, indicating continued insider alignment with shareholder interests.
Negative
  • None.

Insights

TL;DR: Neutral, tax-withholding transaction; CFO still owns ~1.9 m shares.

The Form 4 discloses only a code F tax-withholding event: 25,950 shares were surrendered to cover payroll taxes tied to RSU vesting. No discretionary sale occurred, so market-signal value is low. Post-event holdings of 1,856,797 shares represent a meaningful insider stake, implying continued commitment. From a liquidity standpoint, the share count absorbed by the company is immaterial relative to SLDP’s ~178 m share base. Accordingly, the filing is routine and should not materially affect valuation or trading sentiment.

Solid Power, Inc. (SLDP) – Transazione interna Form 4

La Chief Financial Officer, Tesoriere e Segretaria Linda C. Heller ha riportato una singola transazione datata 30 giugno 2025. Il documento mostra che 25.950 azioni ordinarie (codice transazione F) sono state trattenute a $2,15 per azione per adempiere agli obblighi fiscali derivanti dal consolidamento delle unità azionarie vincolate. Non si è verificata alcuna vendita o acquisto sul mercato aperto e non sono state segnalate transazioni su strumenti derivati.

Dopo la trattenuta delle azioni per motivi fiscali, la proprietà diretta dell’esecutivo ammonta a 1.856.797 azioni ordinarie. Non sono state dichiarate partecipazioni indirette né nuovi strumenti derivati.

Poiché le azioni sono state trattenute anziché vendute sul mercato aperto, la transazione è generalmente considerata amministrativa e neutra, con un impatto limitato sul mercato. Tuttavia, il documento conferma che la CFO mantiene una consistente posizione azionaria nella società, garantendo un allineamento di interessi con gli azionisti esterni.

Solid Power, Inc. (SLDP) – Transacción interna Formulario 4

La Directora Financiera, Tesorera y Secretaria Linda C. Heller reportó una única transacción con fecha 30 de junio de 2025. El informe muestra que 25.950 acciones ordinarias (código de transacción F) fueron retenidas a $2.15 por acción para cumplir con las obligaciones fiscales derivadas de la consolidación de unidades de acciones restringidas. No hubo ventas ni compras en el mercado abierto y no se reportaron transacciones con valores derivados.

Tras la retención de acciones por motivos fiscales, la propiedad directa de la ejecutiva es de 1.856.797 acciones ordinarias. No se declararon participaciones indirectas ni nuevos valores derivados.

Dado que las acciones fueron retenidas en lugar de vendidas en el mercado abierto, la transacción se considera generalmente administrativa y neutral, con un impacto limitado en el mercado. Sin embargo, el informe reafirma que la CFO mantiene una posición accionaria significativa en la compañía, alineando sus intereses con los de los accionistas externos.

Solid Power, Inc. (SLDP) – Form 4 내부자 거래 보고

최고재무책임자(CFO), 재무담당 및 비서인 Linda C. Heller2025년 6월 30일자로 단일 거래를 보고했습니다. 제출서류에 따르면 제한 주식 단위(RSU) 권리 확정에 따른 법정 세금 원천징수 의무를 충족하기 위해 25,950 보통주(거래 코드 F)가 주당 2.15달러에 원천징수되었습니다. 공개 시장에서의 매매는 없었으며 파생상품 거래도 보고되지 않았습니다.

세금 관련 주식 원천징수 후, 임원의 직접 보유 주식은 1,856,797 보통주입니다. 간접 보유 지분이나 신규 파생상품은 공개되지 않았습니다.

주식을 시장에서 판매하지 않고 원천징수했기 때문에 이 거래는 일반적으로 행정적이고 중립적으로 간주되며 시장에 미치는 영향은 제한적입니다. 그럼에도 불구하고 이 보고서는 CFO가 회사에 상당한 지분을 계속 보유하고 있음을 확인하며 외부 주주들과 이해관계가 일치함을 보여줍니다.

Solid Power, Inc. (SLDP) – Transaction d’initié Formulaire 4

La Directrice Financière, Trésorière et Secrétaire Linda C. Heller a déclaré une transaction unique datée du 30 juin 2025. Le dépôt montre que 25 950 actions ordinaires (code transaction F) ont été retenues à 2,15 $ par action pour satisfaire aux obligations fiscales légales liées à l’acquisition des unités d’actions restreintes. Aucune vente ou achat sur le marché libre n’a eu lieu, et aucune transaction sur titres dérivés n’a été signalée.

Après cette retenue d’actions liée à l’impôt, la détention directe de la dirigeante s’élève à 1 856 797 actions ordinaires. Aucune participation indirecte ni nouveaux titres dérivés n’ont été divulgués.

Étant donné que les actions ont été retenues plutôt que vendues sur le marché libre, la transaction est généralement considérée comme administrative et neutre avec une signification limitée pour le marché. Néanmoins, ce dépôt confirme que la CFO conserve une position importante au capital de la société, maintenant ainsi un alignement d’intérêts avec les actionnaires externes.

Solid Power, Inc. (SLDP) – Insider-Transaktion Form 4

Die Chief Financial Officer, Schatzmeisterin und Sekretärin Linda C. Heller meldete eine einzelne Transaktion vom 30. Juni 2025. Die Meldung zeigt, dass 25.950 Stammaktien (Transaktionscode F) zum Preis von 2,15 $ pro Aktie einbehalten wurden, um gesetzliche Steuerabzugsverpflichtungen im Zusammenhang mit der Vesting von Restricted Stock Units zu erfüllen. Kein Verkauf oder Kauf am offenen Markt fand statt, und es wurden keine Transaktionen mit Derivaten gemeldet.

Nach der steuerbedingten Aktienrückhaltung hält die Führungskraft direkt 1.856.797 Stammaktien. Keine indirekten Beteiligungen oder neuen Derivate wurden offengelegt.

Da die Aktien einbehalten und nicht am offenen Markt verkauft wurden, wird die Transaktion typischerweise als administrativ und neutral angesehen und hat eine begrenzte Marktbedeutung. Dennoch bestätigt die Meldung, dass die CFO weiterhin eine bedeutende Beteiligung am Unternehmen hält und somit ihre Interessen mit denen der externen Aktionäre in Einklang bringt.

SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response: 0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Heller Linda C.

(Last) (First) (Middle)
486 S. PIERCE AVE.
SUITE E

(Street)
LOUISVILLE CO 80027

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Solid Power, Inc. [ SLDP ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
CFO, Treasurer, & Secretary
3. Date of Earliest Transaction (Month/Day/Year)
06/30/2025
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 06/30/2025 F 25,950(1) D $2.15 1,856,797 D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Explanation of Responses:
1. Represents shares of the issuer's common stock withheld to satisfy the reporting person's tax obligation upon the vesting of restricted stock units.
/s/ Kristen Gould, attorney-in-fact on behalf of Linda C. Heller 07/01/2025
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

How many Solid Power (SLDP) shares did the CFO dispose of on 30 June 2025?

25,950 shares were withheld to cover taxes upon RSU vesting.

Was the insider transaction an open-market sale?

No. The code F designation indicates shares were withheld for tax purposes, not sold on the open market.

What is Linda C. Heller’s share ownership in SLDP after the filing?

She directly owns 1,856,797 common shares following the transaction.

Were any derivative securities (options or warrants) reported in this Form 4?

No derivative security acquisitions or disposals were reported.

Does this Form 4 signal a change in insider sentiment?

Likely not; withholding shares for taxes is administrative and generally neutral in sentiment.
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