Asp Isotopes

ASPI

Source: the SEC Form 13F filings of the managers we follow, latest for Q3 2026. How we use them

Managers holding

In their latest 13F (Q3 2026)

See who

Value held

$930k

Combined value at quarter end

Last quarter

1 bought

0 sold or trimmed

Price at Q2 ’26 end

$6.22

+40.7% in the quarter

Prices here are quarter-end prices implied by the 13F filings. Today’s price on Yahoo Finance

Share price change by quarter

+30.7%Q3 ’25

-44.4%Q4 ’25

-17.4%Q1 ’26

+40.7%Q2 ’26

Change in the quarter-end price implied by managers’ 13F filings, adjusted for stock splits. Excludes dividends.

Managers holding it, by quarter

0Q4 ’23

0Q1 ’24

0Q2 ’24

0Q3 ’24

0Q4 ’24

0Q1 ’25

1Q2 ’25

1Q3 ’25

1Q4 ’25

1Q1 ’26

1Q2 ’26

0Q3 ’26

Counts the managers on this site whose 13F for that quarter includes Asp Isotopes.

Who holds it

Each manager’s latest 13F, sorted by how much of their portfolio it is. Changes are against their previous quarter.

Managers holding Asp Isotopes

Polen Capital Management	0.0%$930k	$930k	Added +22%	5 qtrs

Download the holders: CSV · JSON · Markdown

Directors buying and selling

Open-market trades by directors, officers and 10% holders over the last 12 months. How this works

From their Form 4 filings with the SEC. Grants, option exercises and shares sold to pay tax are left out.

Sort by

Insider purchases and sales of Asp Isotopes
		Bought or sold				Filing
14 Oct 2026	Ainscow RobertCOO	▼ Sold	22,500	$2.11	$48k	Form 4
30 Sep 2026	Ryan Robert John AndrewDirector	▲ Bought	15,000	$2.68	$40k	Form 4
28 Sep 2026	Ryan Robert John AndrewDirector	▲ Bought	8,000	$2.70	$22k	Form 4
8 Sep 2026	Ainscow RobertCOO	▼ Sold	8,438	$4.29	$36k	Form 4
4 Sep 2026	Mann Paul ElliotChairman and CEO	▼ Sold	83,759	$4.10	$343k	Form 4
3 Sep 2026	Mann Paul ElliotChairman and CEO	▼ Sold	83,758	$3.92	$328k	Form 4
2 Sep 2026	Mann Paul ElliotChairman and CEO	▼ Sold	83,758	$3.91	$327k	Form 4
2 Sep 2026	Ainscow RobertCOO	▼ Sold	25,000	$3.90	$98k	Form 4
2 Sep 2026	Ainscow Donald GeorgeEVP, Gen Counsel, Secretary	▼ Sold	23,678	$3.89	$92k	Form 4

About the company

Sector: Materials · Miscellaneous Chemical Products
Incorporated in: Delaware
Financial year ends: 31 December
Shares outstanding: 126m at 20 May 2026
SEC filings: Annual reports and other filings on EDGAR

Revenue and profit

$0k2022

$433k2023

$4.1m2024

$23.8m2025

Asp Isotopes revenue and net income by year
Year	Revenue	Net income
2025	$23.8m	−$160m
2024	$4.1m	−$32.4m
2023	$433k	−$16.3m
2022	$0k	−$4.9m

From the company’s XBRL financial statements filed with the SEC, for each financial year. Gaps mean the company didn’t report that figure in a standard form.