ASP ISOTOPES INC ASPI
COM · Common Stock · CUSIP 00218A105 · ISIN US00218A1051
- SectorMaterials
- IndustryMiscellaneous Chemical Products
- HeadquartersDallas, TX
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($65.1k this quarter). Holder counts are more reliable. Shares outstanding: 71.4m as of 2024-11-13, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $4.53. Options: 7 managers hold calls ($2.6m notional), 7 hold puts ($3.8m).
Trends to Q4 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q4 2022 | 4 |
| Q1 2023 | 7 |
| Q2 2023 | 5 |
| Q3 2023 | 12 |
| Q4 2023 | 20 |
| Q1 2024 | 32 |
| Q2 2024 | 52 |
| Q3 2024 | 70 |
| Q4 2024 | 96 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q1 2023 | 4 | 1 |
| Q2 2023 | 4 | 5 |
| Q3 2023 | 8 | 4 |
| Q4 2023 | 15 | 5 |
| Q1 2024 | 28 | 7 |
| Q2 2024 | 41 | 20 |
| Q3 2024 | 56 | 14 |
| Q4 2024 | 68 | 28 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q1 2024 | $0 | $0 | — |
| Q2 2024 | $0 | $0 | — |
| Q3 2024 | $0 | $0 | — |
| Q4 2024 | $2.6m | $3.8m | 1.46 |
Biggest buyers
| Philadelphia Financial Management of San Francisco, LLC | Added | +2.2m |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | Added | +2.1m |
| UBS Group AG | Added | +1.9m |
| CenterBook Partners LP | New | +1.5m |
| BlackRock, Inc. | Added | +1.3m |
| AWM Investment Company, Inc. | Added | +586.6k |
| TWO SIGMA INVESTMENTS, LP | New | +437.2k |
| VANGUARD GROUP INC | Added | +360.7k |
| Nuveen Asset Management, LLC | Added | +359.8k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | +358.7k |
Biggest sellers
| MARSHALL WACE, LLP | Reduced | -852.7k |
| Alyeska Investment Group, L.P. | Reduced | -400.0k |
| Rovida Advisors Inc. | Sold out | -400.0k |
| MMCAP International Inc. SPC | Sold out | -273.1k |
| Fiera Capital Corp | Sold out | -260.0k |
| Telemark Asset Management, LLC | Reduced | -225.0k |
| Walleye Capital LLC | Reduced | -177.7k |
| JANE STREET GROUP, LLC | Sold out | -146.0k |
| CORSAIR CAPITAL MANAGEMENT, L.P. | Sold out | -56.7k |
| HTLF Bank | Sold out | -48.8k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New | $870.2k192.1k shares |
| GROUP ONE TRADING LLC | New | $745.2k164.5k shares |
| CITADEL ADVISORS LLC | New | $468.9k103.5k shares |
| SIMPLEX TRADING, LLC | New | $246.0k54.5k shares |
| JANE STREET GROUP, LLC | New | $220.6k48.7k shares |
| WOLVERINE TRADING, LLC | New | $61.8k13.5k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | New | $00 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New | $2.4m523.2k shares |
| CITADEL ADVISORS LLC | New | $603.8k133.3k shares |
| Sculptor Capital LP | New | $434.0k95.8k shares |
| GROUP ONE TRADING LLC | New | $292.2k64.5k shares |
| SIMPLEX TRADING, LLC | New | $72.0k16.1k shares |
| NATIONAL BANK OF CANADA /FI/ | New | $39.0k86 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | New | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| Mann Paul Elliot 13G · exempt (held before listing) -3.8 pts · filed 2026-02-17 | 7.0% |
| BlackRock, Inc. 13G · institution +1.1 pts · filed 2026-04-27 | 6.6% |
| AWM Investment Company, Inc. 13G · institution -1.1 pts · filed 2026-02-13 | 5.8% |
| AK Jensen Investment Management Ltd 13G · institution -1.2 pts · filed 2025-11-14 | 5.4% |
| Encompass Capital Advisors LLC 13G · passive investor new · filed 2026-01-23 | 5.1% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-26), BNP Paribas Asset Management UK Ltd (0.9%, 2026-02-09)
Insider purchases and sales in Q4 2024
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q1 2023 | 0 | — | 0 | — | — |
| Q2 2023 | 1 | $81.2k | 0 | — | — |
| Q3 2023 | 0 | — | 0 | — | — |
| Q4 2023 | 3 | $191.1k | 0 | — | — |
| Q1 2024 | 1 | $42.0k | 0 | — | — |
| Q2 2024 | 1 | $119.4k | 0 | — | — |
| Q3 2024 | 2 | — | 0 | — | — |
| Q4 2024 | 0 | — | 0 | — | — |
None reported in Q4 2024.
Holders, Q4 2024
| Manager | Shares | Change |
|---|---|---|
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.05% of their portfolio | 4.3m $19.6m | Added +2.1m |
| AWM Investment Company, Inc. 2.34% of their portfolio | 4.2m $19.2m | Added +586.6k |
| BlackRock, Inc. 0.00% of their portfolio | 4.0m $17.9m | Added +1.3m |
| VANGUARD GROUP INC 0.00% of their portfolio | 3.2m $14.4m | Added +360.7k |
| Philadelphia Financial Management of San Francisco, LLC 2.87% of their portfolio | 3.2m $14.3m | Added +2.2m |
| UBS Group AG 0.00% of their portfolio | 2.0m $8.9m | Added +1.9m |
| CenterBook Partners LP 0.41% of their portfolio | 1.5m $6.8m | New |
| Telemark Asset Management, LLC 0.67% of their portfolio | 1.5m $6.7m | Reduced -225.0k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 1.2m $5.3m | Added +57.0k |
| STATE STREET CORP 0.00% of their portfolio | 1.0m $4.7m | Added +176.0k |
| GSA CAPITAL PARTNERS LLP 0.27% of their portfolio | 808.7k $3.7m | Added +37.7k |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 437.2k $2.0m | New |
| NORTHERN TRUST CORP 0.00% of their portfolio | 435.7k $2.0m | Added +58.5k |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 413.3k $1.9m | Added +359.8k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 384.5k $1.7m | Added +358.7k |
| Alyeska Investment Group, L.P. 0.01% of their portfolio | 347.0k $1.6m | Reduced -400.0k |
| MORGAN STANLEY 0.00% of their portfolio | 315.5k $1.4m | Added +76.9k |
| Diametric Capital, LP 0.93% of their portfolio | 303.9k $1.4m | Added +11.9k |
| Rovida Investment Management Ltd 0.31% of their portfolio | 219.0k $989.8k | First filing |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 211.9k $959.9k | Added +167.5k |
| Rathbones Group PLC 0.00% of their portfolio | 176.1k $797.7k | Reduced -29.8k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 172.6k $781.8k | Added +87.9k |
| Apis Capital Advisors, LLC 0.52% of their portfolio | 172.5k $781.6k | New |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 158.2k $716.8k | Added +37.9k |
| MARSHALL WACE, LLP 0.00% of their portfolio | 148.0k $670.4k | Reduced -852.7k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 125.9k $570.2k | Reduced -8.5k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 113.1k $512.3k | Added +86.1k |
| BARCLAYS PLC 0.00% of their portfolio | 108.0k $489.0k | Added +35.6k |
| PRELUDE CAPITAL MANAGEMENT, LLC 0.04% of their portfolio | 102.7k $465.3k | Reduced -3.6k |
| Sculptor Capital LP 0.01% of their portfolio | 95.8k $434.0k | New |
| TWO SIGMA ADVISERS, LP 0.00% of their portfolio | 88.7k $401.8k | New |
| Marex Group Ltd 0.01% of their portfolio | 77.5k $351.1k | New |
| GROUP ONE TRADING LLC 0.01% of their portfolio | 67.1k $304.1k | New |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 60.4k $273.4k | Added +24.7k |
| CITIGROUP INC 0.00% of their portfolio | 59.1k $267.5k | Added +22.6k |
| Squarepoint Ops LLC 0.00% of their portfolio | 58.8k $266.5k | Added +26.2k |
| Virtu Financial LLC 0.01% of their portfolio | 58.8k $266.0k | Added +47.1k |
| Saranac Partners Ltd 0.11% of their portfolio | 44.2k $200.2k | New |
| Pekin Hardy Strauss, Inc. 0.02% of their portfolio | 35.5k $160.6k | New |
| Centiva Capital, LP 0.01% of their portfolio | 33.7k $152.7k | New |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 33.6k $152.1k | Added +6.8k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 30.1k $136.4k | Reduced -1.9k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 29.5k $133.8k | Unchanged |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 28.9k $130.9k | Added +7.2k |
| INTECH INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 28.5k $129.3k | New |
| Corebridge Financial, Inc. 0.00% of their portfolio | 26.0k $118.0k | Reduced -951 |
| MetLife Investment Management, LLC 0.00% of their portfolio | 26.0k $117.7k | Reduced -5.8k |
| BANK OF MONTREAL /CAN/ 0.00% of their portfolio | 25.0k $113.2k | New |
| PARAGON ASSOCIATES & PARAGON ASSOCIATES II JOINT VENTURE 0.26% of their portfolio | 25.0k $113.2k | New |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 24.5k $110.9k | Added +8.9k |
| SG Americas Securities, LLC 0.00% of their portfolio | 22.0k $100.0k | New |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 21.6k $99.0k | Added +2.8k |
| Invesco Ltd. 0.00% of their portfolio | 21.0k $95.3k | Added +1.7k |
| Engineers Gate Manager LP 0.00% of their portfolio | 19.9k $90.0k | New |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 18.1k $81.8k | Reduced -503 |
| Fielder Capital Group LLC 0.03% of their portfolio | 18.1k $81.8k | Unchanged |
| KKM Financial LLC 0.03% of their portfolio | 17.2k $78.1k | Reduced -5.3k |
| Almanack Investment Partners, LLC. 0.01% of their portfolio | 15.1k $68.2k | New |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 15.0k $68.1k | Reduced -81 |
| Walleye Capital LLC 0.00% of their portfolio | 15.0k $68.0k | Reduced -177.7k |
| ProShare Advisors LLC 0.00% of their portfolio | 14.8k $66.8k | New |
| Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio | 14.4k $65.1k | First filing |
| Sanctuary Advisors, LLC 0.00% of their portfolio | 13.0k $79.9k | Reduced -10.6k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 12.2k $55.2k | New |
| LPL Financial LLC 0.00% of their portfolio | 12.0k $54.3k | New |
| Covestor Ltd 0.03% of their portfolio | 11.9k $54.0k | New |
| Pale Fire Capital SE 0.01% of their portfolio | 11.7k $53.0k | New |
| Leonteq Securities AG 0.01% of their portfolio | 11.6k $52.7k | Reduced -1.7k |
| BOSTON FINANCIAL MANGEMENT LLC 0.00% of their portfolio | 11.0k $49.8k | New |
| SVB WEALTH LLC 0.00% of their portfolio | 10.8k $48.8k | New |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 10.2k $46.3k | Added +3.7k |
| AVANTAX ADVISORY SERVICES, INC. 0.00% of their portfolio | 10.0k $45.3k | New |
| Snowden Capital Advisors LLC 0.00% of their portfolio | 10.0k $45.3k | Reduced -10.0k |
| FMR LLC 0.00% of their portfolio | 9.0k $40.8k | Added +1.4k |
| NATIONAL BANK OF CANADA /FI/ 0.00% of their portfolio | 8.6k $39.0k | New |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 7.4k $33.7k | New |
| Hanson & Doremus Investment Management 0.00% of their portfolio | 6.0k $27.0k | New |
| Legal & General Group Plc 0.00% of their portfolio | 5.5k $25.1k | Reduced -541 |
| SBI Securities Co., Ltd. 0.00% of their portfolio | 5.1k $23.0k | First filing |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 4.3k $19.4k | Added +447 |
| Ameritas Investment Partners, Inc. 0.00% of their portfolio | 3.9k $17.6k | Unchanged |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 3.8k $17.1k | Unchanged |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 3.3k $14.9k | Added +1.5k |
| Federation des caisses Desjardins du Quebec 0.00% of their portfolio | 2.7k $12.1k | New |
| MAI Capital Management 0.00% of their portfolio | 2.2k $10.2k | New |
| AMALGAMATED BANK 0.00% of their portfolio | 1.4k $6.0k | Unchanged |
| SIMPLEX TRADING, LLC 0.00% of their portfolio | 1.3k $5.0k | New |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 1.1k $5.0k | Reduced -5.4k |
| Creative Planning 0.00% of their portfolio | 369 $1.7k | New |
| CIBC Private Wealth Group LLC 0.00% of their portfolio | 300 $1.4k | New |
| NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio | 138 $625 | Unchanged |
| CWM, LLC 0.00% of their portfolio | 79 $0 | Added +23 |
| Sterling Capital Management LLC 0.00% of their portfolio | 55 $249 | Added +14 |
| US BANCORP \DE\ 0.00% of their portfolio | 54 $245 | New |
| EverSource Wealth Advisors, LLC 0.00% of their portfolio | 12 $54 | New |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio | 0 $0 | Unchanged |