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SEC Form 4 research

ASPEN AEROGELS INC insider transactions

Inspect ASPEN AEROGELS INC's public SEC insider acquisitions and sales, reporting owners and source receipts.

As of 2026-10-15T08:02:39.132Z

Issuer CIK
0001145986
Reporting owners
43
Officers and directors
22
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What is a Form 4?

Animation: what a Form 4 is, shown with one real example. Sonic Automotive (SAH) reporting owner Paul P. Rusnak bought 13,701 shares at $59.78 on Wednesday, October 7, 2026, transaction code P, an open-market purchase (S is a sale and A is an award from the company). A timeline marks the SEC's two-business-day filing deadline, which ends Friday, October 9. The SEC accepted the Form 4 at 4:33:21 PM ET on October 9, and NexusTrade treats it as public one minute later, at 4:34:21 PM ET. A lamp for NexusTrade's InsiderTrades indicator stays off from the trade date until that moment, then counts one purchase worth 13,701 × $59.78 = $819,045.78.
In this example the shares were bought on Oct 7, 2026, and NexusTrade's InsiderTrades indicator can count the purchase starting at 4:34:21 PM ET on Oct 9, one minute after the SEC accepted the Form 4.

A Form 4 is the SEC filing a company insider, such as an officer, director or 10% owner, uses to report a trade in the company's stock, generally within two business days. The animation follows one real filing as an example: Paul P. Rusnak's purchase of Sonic Automotive (SAH) shares on October 7, 2026.

The same reading applies to every row on this page. The trade date is when the shares changed hands. The available date is when NexusTrade treats the filing as public, and a NexusTrade InsiderTrades indicator counts a purchase (code P) or sale (code S) only from that moment. Code A awards are not counted as purchases.

Read one actual disclosure before using it

Show the table · 1 row, 7 columns

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2026-09-252026-09-23Koch, Inc., Wood River Capital, LLCS12,280,426$4.73Not reported

First displayed source row from Recent insider disclosures. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-09-23 and its public availability date is 2026-09-25. Subtracting those calendar dates gives 2 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code S: a sale. A purchase-following rule excludes this sale even if the reported dollar amount is large.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC accession 0001193125-26-401380 ↗

Recent insider disclosures

This table includes purchases, sales and awards in the public filing record. Awards and open-market purchases are distinct transaction codes. For historical research, use the public availability date to determine when the transaction was knowable.

Read code P as a purchase, S as a sale and A as an award. An award is an acquisition, but it is not an open-market purchase. Open the filing receipt to check the transaction details.

Show the table · 1 row, 7 columns

Scroll sideways to compare all columns. Select a heading to sort.

2026-09-252026-09-23Koch, Inc., Wood River Capital, LLCS12,280,426$4.73Not reported

Most recent 90-day source activity, up to 50 rows. No rows means no matching recent records, not no historical activity.

Officers and directors in the directory

Inspect all 23 displayed rows: Officers and directors in the directory

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Mitchell Steven R000161027913
NOGLOWS WILLIAM P000120109453
Young Donald R000161025733
SCHILLING KEITH L00016284674
Landes Gregg00017318776
Noetzel Mark L00014722643
FAIRBANKS JOHN F00010941471
Conte Kelley000166836412
Gervis Robert M.000147239960
Daniel Santhosh P00019356182
HUFF CRAIG A000124194720
Kool Kathleen00019343842
RCGM LLC000109155523
RCP GP, LLC000161029720
Reilly Richard F00016102751
RESERVOIR CAPITAL GROUP LLC000113746523
RESERVOIR CAPITAL MASTER FUND LP000113746721
RESERVOIR CAPITAL PARTNERS CAYMAN LP000135130820
RESERVOIR CAPITAL PARTNERS LP000109134821
RODRIGUEZ RICARDO C.00019209964
STERN DANIEL H000110560422
SWEETNAM JAMES E0001188600232
Whitaker Corby C000161027320
Mitchell Steven R ↗NOGLOWS WILLIAM P ↗Young Donald R ↗SCHILLING KEITH L ↗Landes Gregg ↗Noetzel Mark L ↗FAIRBANKS JOHN F ↗Conte Kelley ↗Gervis Robert M. ↗Daniel Santhosh P ↗HUFF CRAIG A ↗Kool Kathleen ↗RCGM LLC ↗RCP GP, LLC ↗Reilly Richard F ↗RESERVOIR CAPITAL GROUP LLC ↗RESERVOIR CAPITAL MASTER FUND LP ↗RESERVOIR CAPITAL PARTNERS CAYMAN LP ↗RESERVOIR CAPITAL PARTNERS LP ↗RODRIGUEZ RICARDO C. ↗STERN DANIEL H ↗SWEETNAM JAMES E ↗Whitaker Corby C ↗

Which transactions qualify for the company tracker

The company strategy uses verified officers and directors with qualifying acquisitions at this issuer. Other reporting owners may appear in source records without becoming strategy signals.

Strategy eligibility is held while filing coverage is unresolved.

Historical follower simulations are separate from these source transactions. They do not establish live trading results.