ASP Isotopes Inc. Common Stock (ASPI) ownership: Top institutional holder: BlackRock, Inc. ($36.81M). Insider activity: Net Seller (1 buys, 19 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| BlackRock, Inc. | 8328144.00 | $36.81M | 2026-03-31 |
| VANGUARD GROUP INC | 6406244.00 | $34.27M | 2025-12-31 |
| Encompass Capital Advisors LLC | 6912054.00 | $30.55M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 5060464.00 | $22.37M | 2026-03-31 |
| Rovida Investment Management Ltd | 4100000.00 | $18.08M | 2026-03-31 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 2985300.00 | $13.20M | 2026-03-31 |
| UBS Group AG | 2841709.00 | $12.56M | 2026-03-31 |
| GEODE CAPITAL MANAGEMENT, LLC | 2740464.00 | $12.12M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-06-08 | |
| Sell | null | 2026-05-28 | |
| Sell | null | 2026-05-28 | |
| Sell | null | 2026-05-28 | |
| Sell | null | 2026-05-28 | |
| Sell | null | 2026-05-28 | |
| Sell | null | 2026-05-28 | |
| Sell | null | 2026-05-28 |
Back to ASPI overview · ASPI earnings · All congressional trades
Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.