Stocks › ASPN
ASPEN AEROGELS INC
ASPN·NYSE·
United States·USD
United States·USD$5.87
+0.18 (+3.16%)
Close · Oct 6, 2026 · Close Prices from Tiingo.com
ASPN
ASPEN AEROGELS INC · NYSE
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
ASPNS&P 500 (rebased)
Congress BuyCongress SellInsider BuyInsider SellForm 1448-K ResultsLobbying
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair
Congressional Trades
Recent trades of ASPN by members of U.S. Congress · 3 on record
| Politician | Stock | Type | Filed | Traded | |
|---|---|---|---|---|---|
 Debbie Wasserman SchultzHouse · D · FL |
ASPNASPEN AEROGELS INC · Stock |
Sale $1,001 - $15,000 |
Nov 29, 2017 | Nov 22, 2017 | Filing ↗ |
| Debbie Wasserman SchultzHouse · D · FL |
ASPNASPEN AEROGELS INC · Stock |
Purchase $1,001 - $15,000 |
Oct 18, 2016 | Sep 19, 2016 | Filing ↗ |
| Debbie Wasserman SchultzHouse · D · FL |
ASPNASPEN AEROGELS INC · Stock |
Purchase $1,001 - $15,000 |
Jul 6, 2016 | Apr 27, 2016 | Filing ↗ |
Whale Activity
Position changes in ASPN reported for 2026-06-30 by 10 tracked institutional filers
- Increased4
- New1
- Held0
- Decreased4
- Closed0
- No prior filing1
| Filer | Shares | Value | Change |
|---|---|---|---|
| BlackRock, Inc. | 5.3M | $33.5M | increased |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.5M | $22.4M | increased |
| NEEDHAM INVESTMENT MANAGEMENT LLC | 3.3M | $20.7M | — |
| MILLENNIUM MANAGEMENT LLC | 1.2M | $7.5M | decreased |
| D. E. Shaw & Co., Inc. | 1.1M | $6.8M | increased |
| TWO SIGMA INVESTMENTS, LP | 779.5K | $4.9M | increased |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 699.0K | $4.4M | decreased |
| RENAISSANCE TECHNOLOGIES LLC | 274.4K | $1.7M | new |
| CITADEL ADVISORS LLC | 238.7K | $1.5M | decreased |
| Point72 Asset Management, L.P. | 9,006 | $57K | decreased |
KeyVex tracks a curated set of large 13F filers plus the largest positions in recent filings, so this is a sample of institutional activity, not the whole market.
Insider Trading
Net shares bought (+) or sold (−) on the open market by ASPN insiders, by quarter · Form 4
Recent Insider Transactions
670 transactions on record · newest first
| Insider | Type | Shares | Price | Value | Date | |
|---|---|---|---|---|---|---|
| Wood River Capital, LLC / Koch, Inc. | Sale | −12.3M | n/c | — | Sep 23, 2026 | Form 4 ↗ |
| NOGLOWS WILLIAM PDirector | Option exercise | +14.8K | $4.75 | $70K | Jun 23, 2026 | Form 4 ↗ |
| Mitchell Steven RDirector | Grant / award | +10.4K | $0.00 | $0 | May 13, 2026 | Form 4 ↗ |
| SWEETNAM JAMES EDirector | Grant / award | +10.4K | $0.00 | $0 | May 13, 2026 | Form 4 ↗ |
| NOGLOWS WILLIAM PDirector | Grant / award | +10.4K | $0.00 | $0 | May 13, 2026 | Form 4 ↗ |
| Kool KathleenDirector | Grant / award | +10.4K | $0.00 | $0 | May 13, 2026 | Form 4 ↗ |
| Robinson CariDirector | Grant / award | +10.4K | $0.00 | $0 | May 13, 2026 | Form 4 ↗ |
| Young Donald RPresident and CEO · Director | Tax withholding | −4,275 | $3.22 | $14K | Mar 8, 2026 | Form 4 ↗ |
| Whitaker Corby CChief Commercial Officer | Tax withholding | −1,924 | $3.22 | $6K | Mar 8, 2026 | Form 4 ↗ |
| Thoele Grant DouglasCFO & Treasurer | Tax withholding | −590 | $3.22 | $2K | Mar 8, 2026 | Form 4 ↗ |
| Landes GreggChief Operating Officer | Tax withholding | −1,924 | $3.22 | $6K | Mar 8, 2026 | Form 4 ↗ |
| Young Donald RPresident and CEO · Director | Tax withholding | −8,618 | $3.27 | $28K | Mar 5, 2026 | Form 4 ↗ |
| Landes GreggSVP, Operations and Strat Deve | Tax withholding | −3,814 | $3.27 | $12K | Mar 5, 2026 | Form 4 ↗ |
| Whitaker Corby CSVP, Sales and Marketing | Tax withholding | −3,907 | $3.27 | $13K | Mar 5, 2026 | Form 4 ↗ |
| Daniel Santhosh PChief Accounting Officer | Tax withholding | −986 | $3.27 | $3K | Mar 5, 2026 | Form 4 ↗ |
| Thoele Grant DouglasCFO & Treasurer | Tax withholding | −2,368 | $3.27 | $8K | Mar 5, 2026 | Form 4 ↗ |
| Young Donald RPresident and CEO · Director | Grant / award | +156.7K | $0.00 | $0 | Mar 4, 2026 | Form 4 ↗ |
| Landes GreggSVP, Operations and Strat Deve | Grant / award | +57.5K | $0.00 | $0 | Mar 4, 2026 | Form 4 ↗ |
| DEEGAN GLENN E.CAO, GC & Corp Secretary | Grant / award | +55.5K | $0.00 | $0 | Mar 4, 2026 | Form 4 ↗ |
| Whitaker Corby CSVP, Sales and Marketing | Grant / award | +57.5K | $0.00 | $0 | Mar 4, 2026 | Form 4 ↗ |
Fund Holders
Mutual funds and ETFs holding ASPN · SEC Form N-PORT
| Fund | Shares | Value | % of fund | As of |
|---|---|---|---|---|
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 2.6M | $16.8M | 0.00% | Jun 30, 2026 |
| Needham Aggressive Growth Fund Needham Funds Inc | 2.1M | $13.2M | 0.50% | Jun 30, 2026 |
| iShares Russell 2000 ETF iShares Trust | 1.8M | $11.2M | 0.01% | Jun 30, 2026 |
| Avantis U.S. Small Cap Value ETF American Century ETF Trust | 1.3M | $8.4M | 0.03% | May 31, 2026 |
| State Street(R) SPDR(R) S&P Kensho New Economies Composite ETF SPDR SERIES TRUST | 1.1M | $6.8M | 0.24% | Jun 30, 2026 |
| Invesco WilderHill Clean Energy ETF Invesco Exchange-Traded Fund Trust | 1.2M | $5.3M | 1.27% | Jul 31, 2026 |
| VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 810.4K | $5.1M | 0.01% | Jun 30, 2026 |
| Columbia Small Cap Value Discovery Fund COLUMBIA FUNDS SERIES TRUST I | 1.1M | $5.1M | 0.20% | Jul 31, 2026 |
| iShares Russell 2000 Value ETF iShares Trust | 625.8K | $4.0M | 0.03% | Jun 30, 2026 |
| Royce Small-Cap Opportunity Fund ROYCE FUND | 624.3K | $4.0M | 0.28% | Jun 30, 2026 |
Mutual funds and ETFs whose N-PORT filings list ASPN's shares (CUSIP 04523Y105), each fund at its latest report since Mar 7, 2026, largest positions first. Bonds, options and short positions are left out.
Activist & Passive Stakes
Schedule 13D / 13G beneficial-ownership filings
- Koch, Inc.SCHEDULE 13D/A · activist (13D) · 0 shares0.0%
Sep 24, 2026 · ↗ - Wood River Capital, LLCSCHEDULE 13D/A · activist (13D) · 0 shares0.0%
Sep 24, 2026 · ↗ - George A. NeedhamSCHEDULE 13G/A · passive (13G) · 3.3M shares3.9%
Aug 13, 2026 · ↗ - Needham Asset Management, LLCSCHEDULE 13G/A · passive (13G) · 3.3M shares3.9%
Aug 13, 2026 · ↗ - Needham Investment Management L.L.C.SCHEDULE 13G/A · passive (13G) · 3.3M shares3.9%
Aug 13, 2026 · ↗
Corporate Lobbying
Estimated quarterly lobbying spending reported under the LDA, filings naming aspen aerogels as client
- HOLLAND & KNIGHT LLPASPEN AEROGELS, INC. · 2025 Q1 · ENG$40K
Filing ↗ - HOLLAND & KNIGHT LLPASPEN AEROGELS, INC. · 2024 Q4 · ENG$60K
Filing ↗ - HOLLAND & KNIGHT LLPASPEN AEROGELS, INC. · 2024 Q3 · ENG$50K
Filing ↗ - HOLLAND & KNIGHT LLPASPEN AEROGELS, INC. · 2024 Q2 · ENG$30K
Filing ↗ - HOLLAND & KNIGHT LLPASPEN AEROGELS, INC. · 2024 Q2 · ENG—
Filing ↗
Government Contracts
Federal awards to ASPEN AEROGELS INC · USAspending
No federal contract awards found for ASPEN AEROGELS INC.
U.S. Patents
Recent USPTO applications naming ASPEN AEROGELS INC
No USPTO patent applications found for ASPEN AEROGELS INC.
Annual Financials
From ASPN's 10-K filings · XBRL
No annual XBRL figures on record for ASPN. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
Every split and reverse split in the price history
No stock splits in ASPN's price history.
Material Events (8-K)
Corporate events filed with the SEC
- 8-K · Items 7.01, 9.01Reg FD disclosureSep 15, 2026
EDGAR ↗ - 8-K · Items 2.02, 7.01, 9.01Results of operations · Reg FD disclosureAug 6, 2026
EDGAR ↗ - 8-K · Items 5.02, 5.07, 7.01, 9.01Officer / director change · Shareholder vote · Reg FD disclosureMay 18, 2026
EDGAR ↗ - 8-K · Items 2.02, 7.01, 9.01Results of operations · Reg FD disclosureMay 7, 2026
EDGAR ↗
About ASPEN AEROGELS INC
From SEC EDGAR company records
Industry (SIC 5030)Wholesale-Lumber & Other Construction Materials
SectorConsumer
HeadquartersNORTHBOROUGH, MA
IncorporatedDE
SEC CIK0001145986 ↗