Filing Flows › Aspen Aerogels (ASPN) › Who owns the stock
Who owns Aspen Aerogels (ASPN) stock
175 funds reported Aspen Aerogels (ASPN) shares in their latest 13F filings, worth $519M in all. The largest holder is Kim, LLC ($77.9M). Last quarter 92 funds added to their stakes and 58 cut them.
Largest holders (13F)
| Fund | Shares | Value | Change | Quarter |
|---|---|---|---|---|
| Kim, LLC | 12,280,426 | $77.9M | unchanged | 2026-06-30 |
| Aigh Capital Management LLC | 7,150,126 | $39.2M | new | 2026-09-30 |
| BlackRock | 5,277,148 | $33.5M | increase | 2026-06-30 |
| Oaktop Capital Management II, L.P. | 5,168,674 | $32.8M | unchanged | 2026-06-30 |
| Vanguard Capital Management LLC | 3,539,271 | $22.4M | increase | 2026-06-30 |
| Needham Investment Management LLC | 3,260,800 | $20.7M | decrease | 2026-06-30 |
| George Kaiser Family Foundation | 3,167,322 | $20.1M | unchanged | 2026-06-30 |
| State Street | 2,559,495 | $16.2M | increase | 2026-06-30 |
| American Century Companies | 2,510,042 | $15.9M | increase | 2026-06-30 |
| Vanguard Group | 4,685,950 | $13.3M | increase | 2025-12-31 |
| Jacobs Levy Equity Management | 2,058,083 | $13.0M | increase | 2026-06-30 |
| Ameriprise Financial | 1,821,295 | $11.5M | increase | 2026-06-30 |
| Geode Capital Management, LLC | 1,770,425 | $11.2M | increase | 2026-06-30 |
| Rice Hall James & Associates, LLC | 1,635,259 | $10.4M | increase | 2026-06-30 |
| Invesco | 1,619,972 | $10.3M | decrease | 2026-06-30 |
Aspen Aerogels' latest quarter
Aspen Aerogels, Q3 2026: revenue $85.2M (+17% year over year), operating margin -8.4%, net loss $10.4M, operating cash flow −$3.8M. The chart follows the revenue to costs, profit and cash.
Questions
Who owns the most ASPN stock?
By the latest 13F filings: Kim, LLC ($77.9M); Aigh Capital Management LLC ($39.2M); BlackRock ($33.5M); Oaktop Capital Management II, L.P. ($32.8M); Vanguard Capital Management LLC ($22.4M).
What is the short interest in ASPN?
6,145,901 shares were sold short at the 2026-10-15 settlement, 0.73% of the float.
Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.