ASP Isotopes

ASPI13F as of Jun 30, 2026 · next update ~Nov 14

Limited coverage

Only 1 fund we track owns this stock, so quarterly sentiment and aggregates may be sparse.

Who's buying ASPI

Top funds mostly added to ASP Isotopes in Q2 (Apr⁠–⁠Jun)

Buying:

Funds1InsidersCongress

Top funds
1 of 1 bought more, 0 sold some. Largest: Polen Capital Management, $930K (0% of its portfolio).
Insiders
1 insider bought, 24 sales in 12 months.
Congress
No trades disclosed in the last 12 months.

1 fund$930,257 held0.0% avg. weightQ2: 1 bought / 0 sold

13F reports are a snapshot as of Jun 30, 2026; funds may have traded since. Insiders often sell for personal reasons (taxes, diversification, planned sales).

Share price · market data, not from 13F reports

Q2 2026

Insider trades (Form 4)

Last 2 years · 34 filings

Net buying$19.76M

Date	Insider	Type	Shares	Price	Value
Oct 16, 2026	Heather Kiessling CFO	Sold	21,830	$2.19	$48K
Oct 14, 2026	Robert Ainscow COO	Sold	22,500	$2.11	$48K
Sep 30, 2026	Robert John Andrew Ryan Director	Bought	15,000	$2.68	$40K
Sep 28, 2026	Robert John Andrew Ryan Director	Bought	8,000	$2.70	$22K
Sep 8, 2026	Robert Ainscow COO	Sold	8,438	$4.29	$36K
Sep 2, 2026	Donald George Ainscow VP & Secretary	Sold	23,678	$3.89	$92K
Sep 2, 2026	Robert Ainscow COO	Sold	25,000	$3.91	$98K
Sep 2, 2026	Paul Elliot Mann Chair & CEO	Sold	251,275	$3.98	$999K
Jul 1, 2026	Heather Kiessling CFO	Sold	23,124	$6.28	$145K
Jun 30, 2026	Donald George Ainscow VP & Secretary	Sold	100,000	$6.14	$614K
Jun 29, 2026	Todd Wider Director	Sold	100,000	$6.19	$619K
Jun 30, 2026	Michael Gorley Director	Sold	30,000	$6.27	$188K
Jun 8, 2026	Robert Ainscow COO	Sold	8,438	$7.00	$59K
Jun 1, 2026	Paul Elliot Mann Chair & CEO	Sold	251,275	$7.98	$2.00M
Apr 16, 2026	Robert Ainscow COO	Sold	22,500	$5.21	$117K
Apr 15, 2026	Heather Kiessling CFO	Sold	23,124	$5.48	$127K
Apr 16, 2026	Duncan Moore Director	Sold	11,642	$5.21	$61K
Mar 6, 2026	Robert Ainscow COO	Sold	25,000	$4.51	$113K
Mar 6, 2026	Robert Ainscow COO	Sold	8,438	$5.44	$46K
Mar 2, 2026	Paul Elliot Mann Chair	Sold	162,153	$5.44	$881K
Dec 18, 2025	Heather Kiessling CFO	Sold	80,000	$5.80	$464K
Dec 8, 2025	Robert Ainscow CEO & COO	Sold	8,438	$6.20	$52K
Dec 1, 2025	Paul Elliot Mann Chair	Sold	162,153	$5.75	$933K
Nov 25, 2025	Robert Ainscow CEO & COO	Sold	25,000	$5.77	$144K
Nov 17, 2025	Paul Elliot Mann	Sold	162,500	$6.97	$1.13M
Nov 17, 2025	Robert Ainscow CEO & COO	Sold	67,500	$7.51	$507K
Oct 14, 2025	Robert Ainscow CEO & COO	Sold	22,500	$13.60	$306K
Sep 15, 2025	Todd Wider Director	Sold	74,108	$8.76	$649K
Sep 30, 2025	Michael Gorley Director	Sold	64,000	$9.75	$624K
Sep 8, 2025	Robert Ainscow COO	Sold	8,438	$8.53	$72K
Sep 8, 2025	Paul Elliot Mann CEO & 10% Owner	Sold	162,153	$8.46	$1.37M
Aug 29, 2025	Duncan Moore Director	Sold	75,000	$9.28	$696K
Apr 15, 2025	Robert Ainscow COO	Sold	200,000	$5.61	$1.12M
Apr 15, 2025	Paul Elliot Mann CEO & 10% Owner	Sold	950,000	$5.61	$5.33M