ASPI — ASP ISOTOPES INC

Ownership history in Mariner, LLC  ·  2 quarters on record

This page tracks every 13F SEC filing in which Mariner, LLC reported a position in ASP ISOTOPES INC (ASPI). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 ADDED 41,030 +12,385 +43.2% 0.00% $395K $9.62
2025 Q2 INITIATED 28,645 — — 0.00% $211K $7.36
% of Fund (quarterly)    ASPI price (monthly, adj. close)

Other funds also holding ASPI

As of 2025 Q4 — sorted by position size

SOUTHPORT MANAGEMENT, L.L.C. 3Y 7Y 1.59% AWM Investment Company, Inc. 3Y 7Y 1.1% Diametric Capital, LP 3Y 7Y 1.06% WIM INVESTMENT MANAGEMENT Ltd 0.83% Telemark Asset Management, LLC 3Y 7Y 0.44% Shay Capital LLC 3Y 0.32% CANNELL CAPITAL LLC 3Y 7Y 0.29% Crawford Fund Management, LLC 0.17% Shay Capital LLC 3Y 0.17% HITE Hedge Asset Management LLC 3Y 7Y 0.15%
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