ASP Isotopes Inc.
ZA ˙ JSE ˙ US00218A1051
12.140,00 ZAR ↓ -852,00 (-6,56%)
2026-06-04
AKTIENPREIS
SecurityZA:ISO / ASP Isotopes Inc.
InstitutionDiametric Capital, LP
Latest Disclosed Ownership953,505 shares
Latest Disclosed Value $ 4,214,492
Diametric Capital, LP reports 29.32% increase in ownership of ISO / ASP Isotopes Inc.

On May 15, 2026 - Diametric Capital, LP filed a 13F-HR form disclosing ownership of 953,505 shares of ASP Isotopes Inc. (ZA:ISO) valued at $7,083,588,645 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 737,304 shares of ASP Isotopes Inc.. This represents a change in shares of 29.32% during the quarter. The current value of the position is $11,575,550,700 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F ASP ISOTOPES COM 00218A105 953,505 216,201 29.32 4,214 6.85 1.0952
2026-02-13 2025-12-31 13F ASP ISOTOPES COM 00218A105 737,304 381,624 107.29 3,945 15.29 1.0572
2025-11-13 2025-09-30 13F ASP ISOTOPES COM 00218A105 355,680 86,153 31.96 3,422 72.52 1.2688
2025-08-13 2025-06-30 13F ASP ISOTOPES COM 00218A105 269,527 -123,498 -31.42 1,984 7.60 1.0584
2025-05-14 2025-03-31 13F ASP ISOTOPES COM 00218A105 393,025 89,170 29.35 1,843 33.94 2.1920
2025-02-12 2024-12-31 13F ASP ISOTOPES COM 00218A105 303,855 11,886 4.07 1,376 69.67 0.9296
2024-11-13 2024-09-30 13F ASP ISOTOPES COM 00218A105 291,969 291,969 812 0.4013
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.