ASP Isotopes Inc.
DE ˙ DB ˙ US00218A1051
SecurityDE:W62 / ASP Isotopes Inc.
InstitutionIMC-Chicago, LLC
Latest Disclosed Ownership268,469 shares
Latest Disclosed Value $ 1,186,633
IMC-Chicago, LLC reports 8.84% decrease in ownership of W62 / ASP Isotopes Inc.

On May 5, 2026 - IMC-Chicago, LLC filed a 13F-HR form disclosing ownership of 268,469 shares of ASP Isotopes Inc. (DE:W62) valued at $1,186,633 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 294,502 shares of ASP Isotopes Inc.. This represents a change in shares of -8.84% during the quarter.

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)
2026-05-05 2026-03-31 13F ASP ISOTOPES COM 00218A105 268,469 -26,033 -8.84 1,187 -24.70 0.0004
2026-01-29 2025-12-31 13F ASP ISOTOPES COM 00218A105 294,502 261,274 786.31 1,576 393.73 0.0006
2025-11-04 2025-09-30 13F ASP ISOTOPES COM 00218A105 33,228 -42,049 -55.86 320 -42.42 0.0001
2025-07-22 2025-06-30 13F ASP ISOTOPES COM 00218A105 75,277 75,277 554 0.0002
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.