SEC Form 4 · accession 0001193125-26-401380
ASPEN AEROGELS INC · ASPN
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Period of report
Sep 23, 2026
Accepted (ET)
Sep 24, 2026 · 8:59 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001145986
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common StockF1,F2 | Sep 23, 2026 | S | 12,280,426 | $4.73 | D | 0 | D |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1The sale was executed in a single block trade at $4.73 per share.
- F2Wood River is beneficially owned by SCC Holdings, LLC ("SCC"), SCC is beneficially owned by KIM, LLC ("KIM"), KIM is beneficially owned by Koch Investments Group, LLC ("KIG"), KIG is beneficially owned by Koch Investments Group Holdings, LLC ("KIGH"), and KIGH is beneficially owned by Koch Industries, Inc. ("Koch Industries"), in each case by means of ownership of all voting equity instruments. Koch Industries, SCC, KIM, KIG, and KIGH may be deemed to beneficially own the shares of the Issuer's common stock beneficially owned by Wood River by virtue of (i) Koch Industries' beneficial ownership of KIGH, (ii) KIGH's beneficial ownership of KIG, (iii) KIG's beneficial ownership of KIM, (iv) KIM's beneficial ownership of SCC and (v) SCC's beneficial ownership of Wood River.