- Type / Class
- Equity / Common Stock
- Shares outstanding
- 110,850,543
- Total 13F shares
- 41,457,954
- Share change
- +8,930,971
- Total reported value
- $305,098,103
- Put/Call ratio
- 88%
- Price per share
- $7.36
- Number of holders
- 128
- Value change
- +$67,158,257
- Number of buys
- 91
- Number of sells
- 35
Quarterly Holders Quick Answers
What is CUSIP 00218A105?
CUSIP 00218A105 identifies ASPI - ASP Isotopes Inc. - Common Stock in SEC institutional holdings data.
Need full ownership history?
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Related Filing Research
- Latest 13F filings for newly reported positions.
- Latest Schedule 13D/13G reports for ownership changes outside 13F cadence.
- Latest 10-Q/10-K reports for financial context tied to this issuer.
- Recent insider transactions for executive and insider activity.
- SEC investors directory and top value investors for manager drilldown.
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Explore More Reporting Periods
Jump to adjacent filing periods for faster comparison and easier crawl discovery.
Recent filing periods for CUSIP 00218A105:
Top shareholders of ASPI - ASP Isotopes Inc. - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| AK Jensen Investment Management Ltd |
3/4/5
|
10%+ Owner |
—
mixed-class rows
|
13,333,748
mixed-class rows
|
$40,490,134 | — | 11 Oct 2024 | |
| BlackRock, Inc. |
13D/G
13F
|
Company |
5.5%
|
3,955,388
|
$21,200,880 | $0 | 31 Dec 2024 | |
| AWM Investment Company, Inc. |
13F
|
Company |
4.1%
|
4,511,186
|
$21,157,462 | — | 31 Mar 2025 | |
| BNP Paribas Asset Management Holding S.A. |
13F
|
Company |
3.3%
|
3,638,215
|
$17,063,000 | — | 31 Mar 2025 | |
| Philadelphia Financial Management of San Francisco, LLC |
13F
|
Company |
3.2%
|
3,508,062
|
$16,452,811 | — | 31 Mar 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
2.8%
|
3,088,052
|
$14,482,963 | — | 31 Mar 2025 | |
| Capital Research Global Investors |
13F
|
Company |
2.6%
|
2,868,062
|
$13,451,211 | — | 31 Mar 2025 | |
| Hendrik Strydom |
3/4/5
|
Director, 10%+ Owner |
—
class O/S missing
|
7,394,846
|
$7,099,052 | — | 15 Nov 2022 | |
| Telemark Asset Management, LLC |
13F
|
Company |
1.3%
|
1,475,000
|
$6,917,750 | — | 31 Mar 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
1.1%
|
1,253,321
|
$5,879,528 | — | 31 Mar 2025 | |
| STATE STREET CORP |
13F
|
Company |
0.94%
|
1,047,344
|
$4,912,043 | — | 31 Mar 2025 | |
| UBS Group AG |
13F
|
Company |
0.92%
|
1,015,464
|
$4,762,526 | — | 31 Mar 2025 | |
| Sergey Vasnetsov |
3/4/5
|
Director |
—
class O/S missing
|
3,838,607
|
$3,685,063 | — | 01 Mar 2023 | |
| Ph.D. Einar Ronander |
3/4/5
|
Chief Scientific Adviser, 10%+ Owner |
—
class O/S missing
|
3,597,424
|
$3,453,527 | — | 09 Nov 2022 | |
| GSA CAPITAL PARTNERS LLP |
13F
|
Company |
0.51%
|
569,578
|
$2,671,000 | — | 31 Mar 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.42%
|
460,729
|
$2,160,819 | — | 31 Mar 2025 | |
| Diametric Capital, LP |
13F
|
Company |
0.35%
|
393,025
|
$1,843,287 | — | 31 Mar 2025 | |
| Rovida Investment Management Ltd |
13F
|
Company |
0.32%
|
350,000
|
$1,620,500 | — | 31 Mar 2025 | |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
|
Company |
0.25%
|
277,846
|
$1,303,098 | — | 31 Mar 2025 | |
| GROUP ONE TRADING LLC |
13F
|
Company |
0.24%
|
269,628
|
$1,264,555 | — | 31 Mar 2025 | |
| MORGAN STANLEY |
13F
|
Company |
0.24%
|
262,463
|
$1,230,952 | — | 31 Mar 2025 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
0.21%
|
228,706
|
$1,072,630 | — | 31 Mar 2025 | |
| Joshua J. Donfeld |
3/4/5
|
Director |
—
class O/S missing
|
1,104,167
|
$1,060,000 | — | 26 Oct 2023 | |
| Rathbones Group PLC |
13F
|
Company |
0.19%
|
205,929
|
$965,807 | — | 31 Mar 2025 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
0.18%
|
203,067
|
$952,384 | — | 31 Mar 2025 | |
| APIS CAPITAL ADVISORS, LLC |
13F
|
Company |
0.17%
|
191,000
|
$895,790 | — | 31 Mar 2025 | |
| MARSHALL WACE, LLP |
13F
|
Company |
0.16%
|
178,134
|
$835,448 | — | 31 Mar 2025 | |
| CenterBook Partners LP |
13F
|
Company |
0.16%
|
175,959
|
$825,248 | — | 31 Mar 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.15%
|
165,364
|
$775,557 | — | 31 Mar 2025 | |
| PRELUDE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
0.14%
|
153,770
|
$721,181 | — | 31 Mar 2025 | |
| TUDOR INVESTMENT CORP ET AL |
13F
|
Company |
0.14%
|
150,023
|
$703,608 | — | 31 Mar 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.13%
|
142,257
|
$667,184 | — | 31 Mar 2025 | |
| Nuveen, LLC |
13F
|
Company |
0.12%
|
131,230
|
$615,469 | — | 31 Mar 2025 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.09%
|
101,676
|
$476,861 | — | 31 Mar 2025 | |
| Sculptor Capital LP |
13F
|
Company |
0.09%
|
95,800
|
$449,302 | — | 31 Mar 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.08%
|
87,507
|
$410,407 | — | 31 Mar 2025 | |
| PEAK6 LLC |
13F
|
Company |
0.08%
|
86,600
|
$406,154 | — | 31 Mar 2025 | |
| BARCLAYS PLC |
13F
|
Company |
0.08%
|
84,541
|
$396,497 | — | 31 Mar 2025 | |
| Marex Group plc |
13F
|
Company |
0.07%
|
82,535
|
$387,089 | — | 31 Mar 2025 | |
| Steward Partners Investment Advisory, LLC |
13F
|
Company |
0.07%
|
81,700
|
$383,173 | — | 31 Mar 2025 | |
| RHUMBLINE ADVISERS |
13F
|
Company |
0.06%
|
65,326
|
$306,372 | — | 31 Mar 2025 | |
| Destination Wealth Management |
13F
|
Company |
0.05%
|
56,964
|
$267,161 | — | 31 Mar 2025 | |
| BALYASNY ASSET MANAGEMENT L.P. |
13F
|
Company |
0.05%
|
55,749
|
$261,463 | — | 31 Mar 2025 | |
| Saranac Partners Ltd |
13F
|
Company |
0.04%
|
44,195
|
$207,275 | — | 31 Mar 2025 | |
| DEUTSCHE BANK AG\ |
13F
|
Company |
0.04%
|
40,092
|
$188,032 | — | 31 Mar 2025 | |
| CITIGROUP INC |
13F
|
Company |
0.04%
|
38,894
|
$182,413 | — | 31 Mar 2025 | |
| MetLife Investment Management, LLC |
13F
|
Company |
0.03%
|
31,732
|
$148,823 | — | 31 Mar 2025 | |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. |
13F
|
Company |
0.03%
|
31,613
|
$148,265 | — | 31 Mar 2025 | |
| ALLIANCEBERNSTEIN L.P. |
13F
|
Company |
0.03%
|
29,530
|
$138,496 | — | 31 Mar 2025 | |
| Pekin Hardy Strauss, Inc. |
13F
|
Company |
0.03%
|
28,450
|
$133,430 | — | 31 Mar 2025 |
Institutional Holders of ASP Isotopes Inc. - Common Stock (ASPI) as of Q2 2025
As of 30 Jun 2025,
ASP Isotopes Inc. - Common Stock (ASPI) was held by
128 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
41,457,954 shares.
The largest 10 holders included
Alyeska Investment Group, L.P., BlackRock, Inc., AWM Investment Company, Inc., VANGUARD GROUP INC, Capital Research Global Investors, Philadelphia Financial Management of San Francisco, LLC, Rovida Investment Management Ltd, BNP PARIBAS ASSET MANAGEMENT Holding S.A., UBS Group AG, and Telemark Asset Management, LLC.
This page lists
130
institutional shareholders reporting positions in this security
for the Q2 2025 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q2 2025 vs Q1 2025 Across Filers
Q1 2025 holders
95
Q2 2025 holders
128
Holder diff
33
| Investor | Q1 2025 Shares | Q2 2025 Shares | Share Diff | Share Chg % | Q1 2025 Value $ | Q2 2025 Value $ | Value Diff $ | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
An asterisk sign (*) next to the price indicates that the price is likely invalid.