Who owns Aspen Aerogels Inc (ASPN)?
90 US mutual funds and ETFs from 56 fund families reported a position in ASPN for the quarter ending 2026-06-30. Against their own report a quarter earlier, 38 raised shares, 8 opened a new position, 18 cut and 0 sold out.
Largest fund families
| Fund family | Funds | Share of fund-held shares |
|---|---|---|
| Vanguard Index Funds | 2 | 25.3% |
| Needham Funds Inc | 3 | 22.2% |
| Ishares Trust | 5 | 19.9% |
| Spdr Series Trust | 2 | 8.3% |
| Royce Fund | 1 | 4.6% |
| Clearwater Investment Trust | 1 | 2.5% |
Tracked managers holding ASPN
None of the managers Prior Moves tracks on 13F reports ASPN in its latest filing.
Source: SEC Form N-PORT, which funds file about 60 days after quarter end, and the latest 13F filings. Share counts, not trades: a change can reflect fund inflows or outflows rather than a decision about ASPN. A record of holdings, not a forecast and not investment advice. See all owner pages or the forecast board for the names our model ranks.
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