STOCK TITAN

[Form 4] Aspen Aerogels, Inc. Insider Trading Activity

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

Daniel Santhosh P, the Chief Accounting Officer of Aspen Aerogels, filed a Form 4 reporting the sale of company common stock in two transactions on 08/12/2025 and 08/13/2025. On 08/12/2025 he sold 4,410 shares in multiple trades at prices ranging about $7.31–$7.32, and the report shows 19,879 shares beneficially owned following that transaction. On 08/13/2025 he sold 2,000 shares at $7.54, with 17,879 listed as beneficially owned following that sale.

The filing notes that the 17,879 shares represent Restricted Stock Units. No derivative securities are reported. A Power of Attorney is attached as Exhibit 24 and the form is signed by an attorney-in-fact, Stephanie Pittman, on 08/13/2025. The report is limited to the disclosed share counts, transaction dates, and prices in the form.

Daniel Santhosh P, il Chief Accounting Officer di Aspen Aerogels, ha depositato un Form 4 segnalando la vendita di azioni ordinarie della società in due operazioni il 08/12/2025 e il 08/13/2025. Il 08/12/2025 ha venduto 4,410 shares in più operazioni a prezzi intorno a $7.31–$7.32, e il documento indica 19,879 shares di proprietà beneficiaria dopo quella transazione. Il 08/13/2025 ha poi venduto 2,000 shares a $7.54, con 17,879 riportate come azioni beneficiarie dopo tale vendita.

Il filing specifica che le 17,879 azioni rappresentano Restricted Stock Units (RSU). Non sono segnalati strumenti derivati. In allegato come Exhibit 24 figura una Power of Attorney e il modulo è firmato per procura da Stephanie Pittman, in qualità di attorney-in-fact, il 08/13/2025. Il rapporto si limita ai conteggi delle azioni, alle date delle transazioni e ai prezzi indicati nel modulo.

Daniel Santhosh P, el Chief Accounting Officer de Aspen Aerogels, presentó un Form 4 informando la venta de acciones ordinarias de la compañía en dos operaciones el 08/12/2025 y el 08/13/2025. El 08/12/2025 vendió 4,410 shares en varias transacciones a precios cercanos a $7.31–$7.32, y el informe muestra 19,879 shares en propiedad beneficiaria tras esa operación. El 08/13/2025 vendió 2,000 shares a $7.54, quedando 17,879 registradas como propiedad beneficiaria después de esa venta.

La presentación señala que las 17,879 acciones representan Restricted Stock Units (RSU). No se reportan valores derivados. Como Exhibit 24 se adjunta una Power of Attorney y el formulario está firmado por poder por Stephanie Pittman, en calidad de attorney-in-fact, el 08/13/2025. El informe se limita a los recuentos de acciones, las fechas de las transacciones y los precios divulgados en el formulario.

Daniel Santhosh P는 Aspen Aerogels의 최고회계책임자(Chief Accounting Officer)로서 08/12/202508/13/2025에 회사 보통주 매각을 보고하는 Form 4를 제출했습니다. 08/12/2025에 그는 여러 건의 거래로 4,410 shares를 약 $7.31–$7.32 수준에서 처분했으며, 해당 거래 후 19,879 shares를 실질적으로 보유하고 있는 것으로 보고되어 있습니다. 08/13/2025에는 2,000 shares$7.54에 매도했으며, 그 이후 실질 보유 주식은 17,879로 기재되어 있습니다.

신고서에는 17,879주가 Restricted Stock Units(RSU)을 의미한다고 적혀 있습니다. 파생증권은 보고되지 않았습니다. Exhibit 24로 Power of Attorney(위임장)가 첨부되어 있으며, 양식은 08/13/2025에 대리인(attorney-in-fact)인 Stephanie Pittman의 서명으로 제출되었습니다. 보고서는 양식에 기재된 주식 수, 거래일 및 가격으로만 한정됩니다.

Daniel Santhosh P, Chief Accounting Officer d'Aspen Aerogels, a déposé un Form 4 déclarant la vente d'actions ordinaires de la société lors de deux transactions les 08/12/2025 et 08/13/2025. Le 08/12/2025, il a vendu 4,410 shares lors de plusieurs opérations à des prix d'environ $7.31–$7.32, et le rapport indique 19,879 shares détenues à titre bénéficiaire après cette transaction. Le 08/13/2025, il a vendu 2,000 shares à $7.54, laissant 17,879 déclarées comme détenues à titre bénéficiaire après cette vente.

Le dépôt précise que les 17,879 actions représentent des Restricted Stock Units (RSU). Aucun instrument dérivé n'est signalé. Une Power of Attorney est jointe en tant qu'Exhibit 24 et le formulaire est signé par procuration par Stephanie Pittman, en qualité d'attorney-in-fact, le 08/13/2025. Le rapport se limite aux nombres d'actions, aux dates des transactions et aux prix divulgués dans le formulaire.

Daniel Santhosh P, Chief Accounting Officer von Aspen Aerogels, hat ein Form 4 eingereicht, das den Verkauf von Stammaktien des Unternehmens in zwei Transaktionen am 08/12/2025 und 08/13/2025 meldet. Am 08/12/2025 verkaufte er in mehreren Trades 4,410 shares zu Preisen von etwa $7.31–$7.32, und im Bericht werden nach dieser Transaktion 19,879 shares als wirtschaftlich gehalten angegeben. Am 08/13/2025 verkaufte er 2,000 shares zu $7.54, wobei nach diesem Verkauf 17,879 als wirtschaftlich gehalten aufgeführt sind.

Die Einreichung stellt fest, dass die 17,879 Aktien Restricted Stock Units (RSU) darstellen. Es werden keine derivaten Wertpapiere berichtet. Als Exhibit 24 ist eine Power of Attorney beigefügt, und das Formular ist am 08/13/2025 von der attorney-in-fact Stephanie Pittman unterzeichnet. Der Bericht beschränkt sich auf die im Formular angegebenen Aktienzahlen, Transaktionsdaten und Preise.

Positive
  • None.
Negative
  • None.

Insights

TL;DR: Chief Accounting Officer sold 6,410 Aspen shares across two days at ~$7.31–$7.54; remaining beneficial ownership reported as 17,879 RSUs.

The Form 4 discloses routine insider dispositions: 4,410 shares sold on 08/12/2025 at approximately $7.31–$7.32, and 2,000 shares sold on 08/13/2025 at $7.54. The filing shows the reporting person’s beneficial ownership after the trades as 19,879 and then 17,879, with the latter explicitly noted as Restricted Stock Units. No options, warrants, or other derivatives are reported. From the numbers provided, the disclosure is clear on transaction dates, amounts, and prices but contains no contextual information about total prior holdings or intent, so material market impact cannot be determined from this form alone.

TL;DR: The filing appropriately discloses insider sales and restricted stock units, with Power of Attorney attached and attorney-in-fact signature on record.

The Form 4 identifies the reporting person as the company’s Chief Accounting Officer and includes a Power of Attorney (Exhibit 24) evidenced by the attorney-in-fact signature dated 08/13/2025. The document reports only non-derivative dispositions and specifies the nature of remaining holdings as Restricted Stock Units. For governance and compliance purposes, the filing appears complete regarding the transactions listed; it does not include any additional governance actions or flag regulatory exceptions in the provided text.

Daniel Santhosh P, il Chief Accounting Officer di Aspen Aerogels, ha depositato un Form 4 segnalando la vendita di azioni ordinarie della società in due operazioni il 08/12/2025 e il 08/13/2025. Il 08/12/2025 ha venduto 4,410 shares in più operazioni a prezzi intorno a $7.31–$7.32, e il documento indica 19,879 shares di proprietà beneficiaria dopo quella transazione. Il 08/13/2025 ha poi venduto 2,000 shares a $7.54, con 17,879 riportate come azioni beneficiarie dopo tale vendita.

Il filing specifica che le 17,879 azioni rappresentano Restricted Stock Units (RSU). Non sono segnalati strumenti derivati. In allegato come Exhibit 24 figura una Power of Attorney e il modulo è firmato per procura da Stephanie Pittman, in qualità di attorney-in-fact, il 08/13/2025. Il rapporto si limita ai conteggi delle azioni, alle date delle transazioni e ai prezzi indicati nel modulo.

Daniel Santhosh P, el Chief Accounting Officer de Aspen Aerogels, presentó un Form 4 informando la venta de acciones ordinarias de la compañía en dos operaciones el 08/12/2025 y el 08/13/2025. El 08/12/2025 vendió 4,410 shares en varias transacciones a precios cercanos a $7.31–$7.32, y el informe muestra 19,879 shares en propiedad beneficiaria tras esa operación. El 08/13/2025 vendió 2,000 shares a $7.54, quedando 17,879 registradas como propiedad beneficiaria después de esa venta.

La presentación señala que las 17,879 acciones representan Restricted Stock Units (RSU). No se reportan valores derivados. Como Exhibit 24 se adjunta una Power of Attorney y el formulario está firmado por poder por Stephanie Pittman, en calidad de attorney-in-fact, el 08/13/2025. El informe se limita a los recuentos de acciones, las fechas de las transacciones y los precios divulgados en el formulario.

Daniel Santhosh P는 Aspen Aerogels의 최고회계책임자(Chief Accounting Officer)로서 08/12/202508/13/2025에 회사 보통주 매각을 보고하는 Form 4를 제출했습니다. 08/12/2025에 그는 여러 건의 거래로 4,410 shares를 약 $7.31–$7.32 수준에서 처분했으며, 해당 거래 후 19,879 shares를 실질적으로 보유하고 있는 것으로 보고되어 있습니다. 08/13/2025에는 2,000 shares$7.54에 매도했으며, 그 이후 실질 보유 주식은 17,879로 기재되어 있습니다.

신고서에는 17,879주가 Restricted Stock Units(RSU)을 의미한다고 적혀 있습니다. 파생증권은 보고되지 않았습니다. Exhibit 24로 Power of Attorney(위임장)가 첨부되어 있으며, 양식은 08/13/2025에 대리인(attorney-in-fact)인 Stephanie Pittman의 서명으로 제출되었습니다. 보고서는 양식에 기재된 주식 수, 거래일 및 가격으로만 한정됩니다.

Daniel Santhosh P, Chief Accounting Officer d'Aspen Aerogels, a déposé un Form 4 déclarant la vente d'actions ordinaires de la société lors de deux transactions les 08/12/2025 et 08/13/2025. Le 08/12/2025, il a vendu 4,410 shares lors de plusieurs opérations à des prix d'environ $7.31–$7.32, et le rapport indique 19,879 shares détenues à titre bénéficiaire après cette transaction. Le 08/13/2025, il a vendu 2,000 shares à $7.54, laissant 17,879 déclarées comme détenues à titre bénéficiaire après cette vente.

Le dépôt précise que les 17,879 actions représentent des Restricted Stock Units (RSU). Aucun instrument dérivé n'est signalé. Une Power of Attorney est jointe en tant qu'Exhibit 24 et le formulaire est signé par procuration par Stephanie Pittman, en qualité d'attorney-in-fact, le 08/13/2025. Le rapport se limite aux nombres d'actions, aux dates des transactions et aux prix divulgués dans le formulaire.

Daniel Santhosh P, Chief Accounting Officer von Aspen Aerogels, hat ein Form 4 eingereicht, das den Verkauf von Stammaktien des Unternehmens in zwei Transaktionen am 08/12/2025 und 08/13/2025 meldet. Am 08/12/2025 verkaufte er in mehreren Trades 4,410 shares zu Preisen von etwa $7.31–$7.32, und im Bericht werden nach dieser Transaktion 19,879 shares als wirtschaftlich gehalten angegeben. Am 08/13/2025 verkaufte er 2,000 shares zu $7.54, wobei nach diesem Verkauf 17,879 als wirtschaftlich gehalten aufgeführt sind.

Die Einreichung stellt fest, dass die 17,879 Aktien Restricted Stock Units (RSU) darstellen. Es werden keine derivaten Wertpapiere berichtet. Als Exhibit 24 ist eine Power of Attorney beigefügt, und das Formular ist am 08/13/2025 von der attorney-in-fact Stephanie Pittman unterzeichnet. Der Bericht beschränkt sich auf die im Formular angegebenen Aktienzahlen, Transaktionsdaten und Preise.

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*
Daniel Santhosh P

(Last) (First) (Middle)
C/O ASPEN AEROGELS, INC.,
30 FORBES ROAD, BLDG B

(Street)
NORTHBOROUGH MA 01532

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
ASPEN AEROGELS INC [ ASPN ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
Chief Accounting Officer
3. Date of Earliest Transaction (Month/Day/Year)
08/12/2025
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 08/12/2025 S 4,410 D $7.31(1) 19,879 D
Common Stock 08/13/2025 S 2,000 D $7.54 17,879(2) 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. These transactions were executed in multiple trades at prices ranging from $7.31 to $7.32. The reporting person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price.
2. Represents 17,879 Restricted Stock Units.
Remarks:
Power of Attorney is attached hereto as Exhibit 24.
/s/ Stephanie Pittman, Attorney-in-Fact 08/13/2025
** 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

What transactions does the ASPN Form 4 report?

The Form 4 reports two sales: 4,410 shares on 08/12/2025 at about $7.31–$7.32, and 2,000 shares on 08/13/2025 at $7.54.

Who filed the Form 4 for ASPN and what is their title?

The reporting person is Daniel Santhosh P, identified as the company’s Chief Accounting Officer.

How many shares does the reporting person beneficially own after the reported transactions?

The filing shows 19,879 shares beneficially owned after the 08/12 sale and 17,879 after the 08/13 sale; the 17,879 are noted as Restricted Stock Units.

Are any derivative securities reported in this Form 4 for ASPN?

No. Table II for derivative securities contains no entries; only non-derivative common stock transactions are reported.

Is there a Power of Attorney or signature on the Form 4?

Yes. The filing states a Power of Attorney is attached as Exhibit 24, and the form is signed by attorney-in-fact Stephanie Pittman on 08/13/2025.
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