STOCK TITAN

Aspen Aerogels (ASPN) director granted RSUs and stock options for 2026

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Aspen Aerogels director Cari Robinson reported equity awards for board service. On May 13, 2026, Robinson received 10,370 Restricted Stock Units (RSUs) and 8,706 stock options as part of the annual non-employee director equity grant.

Each RSU represents one share of common stock and will vest on the earlier of May 13, 2027, or the day before the company’s 2027 annual stockholders meeting. The options have a $5.40 exercise price, the same vesting schedule, and expire on May 13, 2036. Following these awards, Robinson’s reported position comprises 22,616 share equivalents, including 12,246 shares of common stock and 10,370 RSUs, held directly.

Positive

  • None.

Negative

  • None.
Insider Robinson Cari
Role null
Type Security Shares Price Value
Grant/Award Stock Options (Right to Buy) 8,706 $0.00 --
Grant/Award Common Stock 10,370 $0.00 --
Holdings After Transaction: Stock Options (Right to Buy) — 8,706 shares (Direct, null); Common Stock — 22,616 shares (Direct, null)
Footnotes (1)
  1. The reporting person was granted Restricted Stock Units ("RSUs") representing a portion of the annual grant of equity for service as a non-employee director pursuant to the Issuer's Non-Employee Director Compensation Policy. Each RSU represents the right to receive one share of Common Stock upon vesting. These RSUs will vest on the earlier of (a) May 13, 2027, or (b) the day prior to the Issuer's annual meeting of stockholders to be held in 2027. Represents 12,246 shares of Common Stock and 10,370 RSUs. The reporting person was granted options representing the remaining portion of the annual grant of equity for service as a non-employee director pursuant to the Issuer's Non-Employee Director Compensation Policy. The options will vest on the earlier of (a) May 13, 2027, or (b) the day prior to the Issuer's annual meeting of stockholders to be held in 2027.
RSUs granted 10,370 RSUs Annual non-employee director equity grant on May 13, 2026
Stock options granted 8,706 options Annual non-employee director equity grant on May 13, 2026
Option exercise price $5.40 per share Stock options to buy Aspen Aerogels common stock
Option expiration May 13, 2036 Expiration date of granted stock options
Post-grant holdings 22,616 share equivalents Total reported position after grants
Common shares held 12,246 shares Portion of post-grant holdings in common stock
RSUs held 10,370 RSUs RSU component of post-grant holdings
Vesting date May 13, 2027 or before 2027 meeting Vesting trigger for RSUs and options
Restricted Stock Units ("RSUs") financial
"The reporting person was granted Restricted Stock Units ("RSUs") representing a portion of the annual grant of equity"
Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.
Non-Employee Director Compensation Policy financial
"for service as a non-employee director pursuant to the Issuer's Non-Employee Director Compensation Policy"
Stock Options financial
"The reporting person was granted options representing the remaining portion of the annual grant of equity"
Stock options are agreements that give a person the right to buy or sell a company's stock at a specific price within a certain time frame. They are often used as a reward or incentive, similar to a coupon that can be used later if the stock price rises, allowing the holder to make a profit.
annual grant of equity financial
"representing a portion of the annual grant of equity for service as a non-employee director"
SEC Form 4
FORM 4UNITED 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*
Robinson Cari

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

(Street)
NORTHBOROUGH MASSACHUSETTS 01532

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
ASPEN AEROGELS INC [ ASPN ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/13/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
CodeVAmount(A) or (D)Price
Common Stock05/13/2026A10,370(1)A$022,616(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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Options (Right to Buy)$5.405/13/2026A8,706 (3)05/13/2036Common Stock8,706$08,706D
Explanation of Responses:
1. The reporting person was granted Restricted Stock Units ("RSUs") representing a portion of the annual grant of equity for service as a non-employee director pursuant to the Issuer's Non-Employee Director Compensation Policy. Each RSU represents the right to receive one share of Common Stock upon vesting. These RSUs will vest on the earlier of (a) May 13, 2027, or (b) the day prior to the Issuer's annual meeting of stockholders to be held in 2027.
2. Represents 12,246 shares of Common Stock and 10,370 RSUs.
3. The reporting person was granted options representing the remaining portion of the annual grant of equity for service as a non-employee director pursuant to the Issuer's Non-Employee Director Compensation Policy. The options will vest on the earlier of (a) May 13, 2027, or (b) the day prior to the Issuer's annual meeting of stockholders to be held in 2027.
Remarks:
Exhibit 24.1 - Power of Attorney
/s/ Glenn Deegan, Attorney-in-Fact05/14/2026
** Signature of Reporting PersonDate
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.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transactions did ASPN director Cari Robinson report?

Cari Robinson reported receiving equity awards for board service, not open-market trades. The filing shows 10,370 Restricted Stock Units and 8,706 stock options granted as part of Aspen Aerogels’ non-employee director annual equity compensation on May 13, 2026.

How many RSUs did Cari Robinson receive from Aspen Aerogels (ASPN)?

Robinson received 10,370 Restricted Stock Units from Aspen Aerogels. Each RSU represents the right to receive one share of common stock upon vesting, forming a portion of the annual equity grant under the company’s Non-Employee Director Compensation Policy.

What are the terms of Cari Robinson’s new Aspen Aerogels stock options?

Robinson was granted 8,706 stock options to buy Aspen Aerogels common stock at $5.40 per share. These options vest in full on the earlier of May 13, 2027, or the day before the 2027 annual stockholders meeting, and expire on May 13, 2036.

When do Cari Robinson’s Aspen Aerogels RSUs and options vest?

Both the RSUs and stock options vest on the same schedule. They fully vest on the earlier of May 13, 2027, or the day prior to Aspen Aerogels’ annual meeting of stockholders scheduled to be held in 2027, aligning with the director compensation policy.

How many Aspen Aerogels shares and RSUs does Cari Robinson hold after these grants?

After the reported grants, Robinson’s position totals 22,616 share equivalents. A footnote explains this consists of 12,246 shares of common stock and 10,370 RSUs, all reported as directly held following the May 13, 2026 equity awards.

Is Cari Robinson’s Form 4 for Aspen Aerogels a stock sale?

No, the Form 4 does not report any stock sales. It records compensation-related acquisitions: grants of 10,370 RSUs and 8,706 stock options under Aspen Aerogels’ Non-Employee Director Compensation Policy, with no open-market buying or selling indicated.