InsiderClue
Stocks · Materials · Miscellaneous Chemical Products

ASP Isotopes Inc.

ASPI Clue Score56
United States Fiscal year ends December CIK 0001921865 Results filed 4 Aug 2026
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What the insiders did Net selling

Individual transactions

76
Insider
Date
Role
Action
Shares
Price
Amount
Heather Kiessling
16 Oct 2026
Chief Financial Officer
Sell
21,830
$2.19
$47.81K
Robert Ainscow
14 Oct 2026
COO
Sold on a plan
22,500
$2.11
$47.57K
Robert John Andrew Ryan
30 Sep 2026
Director
Buy
15,000
$2.68
$40.20K
Robert John Andrew Ryan
28 Sep 2026
Director
Buy
8,000
$2.70
$21.60K
Robert Ainscow
8 Sep 2026
COO
Sold on a plan
8,438
$4.29
$36.22K
Paul Elliot Mann
4 Sep 2026
Chairman and CEO
Sold on a plan
83,759
$4.10
$343.41K
Paul Elliot Mann
3 Sep 2026
Chairman and CEO
Sold on a plan
83,758
$3.92
$328.33K
Paul Elliot Mann
2 Sep 2026
Chairman and CEO
Sold on a plan
83,758
$3.91
$327.49K
Robert Ainscow
2 Sep 2026
COO
Sold on a plan
25,000
$3.91
$97.63K
Donald George Ainscow
2 Sep 2026
EVP, Gen Counsel, Secretary
Sell
23,678
$3.89
$92.11K
Heather Kiessling
1 Jul 2026
Chief Financial Officer
Sold on a plan
23,124
$6.28
$145.22K
Michael Gorley
30 Jun 2026
Director
Sell
30,000
$6.27
$188.10K
Todd Wider
30 Jun 2026
Director
Sell
50,000
$6.12
$306.00K
Donald George Ainscow
30 Jun 2026
EVP, Gen Counsel, Secretary
Sell
100,000
$6.14
$614.00K
Todd Wider
29 Jun 2026
Director
Sell
50,000
$6.25
$312.50K
Robert Ainscow
8 Jun 2026
COO
Sold on a plan
8,438
$7.00
$59.06K
Paul Elliot Mann
3 Jun 2026
Chairman and CEO
Sold on a plan
83,759
$7.76
$649.97K
Paul Elliot Mann
2 Jun 2026
Chairman and CEO
Sold on a plan
83,758
$8.29
$694.35K
Paul Elliot Mann
1 Jun 2026
Chairman and CEO
Sold on a plan
83,758
$7.88
$660.01K
Duncan Moore
16 Apr 2026
Director
Sold on a plan
11,642
$5.21
$60.60K
Robert Ainscow
16 Apr 2026
COO
Sold on a plan
22,500
$5.21
$117.11K
Heather Kiessling
15 Apr 2026
Chief Financial Officer
Sold on a plan
23,124
$5.48
$126.67K
Robert Ainscow
6 Mar 2026
COO
Sold on a plan
8,438
$5.44
$45.89K
Robert Ainscow
6 Mar 2026
COO
Sold on a plan
25,000
$4.51
$112.78K
Paul Elliot Mann
2 Mar 2026
Executive Chairman
Sold on a plan
162,153
$5.44
$881.46K
Heather Kiessling
18 Dec 2025
Chief Financial Officer
Sell
80,000
$5.80
$463.84K
Robert Ainscow
8 Dec 2025
Interim CEO and COO
Sold on a plan
8,438
$6.20
$52.34K
Paul Elliot Mann
1 Dec 2025
Executive Chairman
Sold on a plan
162,153
$5.75
$932.87K
Paul Elliot Mann
25 Nov 2025
Executive Officer
Sold on a plan
50,000
$5.77
$288.45K
Robert Ainscow
25 Nov 2025
Interim CEO and COO
Sold on a plan
25,000
$5.77
$144.23K
Robert Ainscow
17 Nov 2025
Interim CEO and COO
Sold on a plan
67,500
$7.51
$506.72K
Paul Elliot Mann
17 Nov 2025
Executive Officer
Sold on a plan
112,500
$7.51
$844.54K
Robert Ainscow
14 Oct 2025
Interim CEO and COO
Sold on a plan
22,500
$13.60
$305.98K
Michael Gorley
30 Sep 2025
Director
Sell
64,000
$9.75
$624.24K
Todd Wider
15 Sep 2025
Director
Sell
74,108
$8.76
$648.82K
Todd Wider
14 Sep 2025
Director
Exercised, kept
96,000
$2.00
$192.00K
Paul Elliot Mann
9 Sep 2025
Chief Executive Officer
Sold after exercise
81,077
$8.39
$680.12K
Robert Ainscow
9 Sep 2025
Chief Operating Officer
Exercised, kept
135,000
$2.00
$270.00K
Robert Ainscow
9 Sep 2025
Chief Operating Officer
Exercised, kept
12,000
$2.00
$24.00K
Robert Ainscow
9 Sep 2025
Chief Operating Officer
Exercised, kept
150,000
$0.25
$37.50K
Paul Elliot Mann
8 Sep 2025
Chief Executive Officer
Sold on a plan
81,076
$8.53
$691.41K
Robert Ainscow
8 Sep 2025
Chief Operating Officer
Sold on a plan
8,438
$8.53
$71.94K
Duncan Moore
29 Aug 2025
Director
Sell
75,000
$9.28
$696.23K
Paul Elliot Mann
17 Apr 2025
Chief Executive Officer
Sold on a plan
316,666
$5.62
$1.78M
Robert Ainscow
17 Apr 2025
Chief Operating Officer
Sold on a plan
66,668
$5.62
$374.76K
Paul Elliot Mann
16 Apr 2025
Chief Executive Officer
Sold on a plan
316,667
$5.45
$1.72M
Robert Ainscow
16 Apr 2025
Chief Operating Officer
Sold on a plan
66,666
$5.45
$363.02K
Paul Elliot Mann
15 Apr 2025
Chief Executive Officer
Sold on a plan
316,667
$5.75
$1.82M
Robert Ainscow
15 Apr 2025
Chief Operating Officer
Sold on a plan
66,666
$5.75
$383.56K
AK Jensen Investment Management Ltd
2 Aug 2024
10% owner
Sell indirect
80,000
$2.23
$178.30K
AK Jensen Investment Management Ltd
1 Aug 2024
10% owner
Sell indirect
31,849
$2.45
$78.01K
Paul Elliot Mann
15 Jul 2024
Chief Executive Officer
Buy
39,984
—
no price
Robert Ainscow
15 Jul 2024
Chief Operating Officer
Buy
19,992
—
no price
AK Jensen Investment Management Ltd
10 Jul 2024
10% owner
Buy indirect
61,849
$3.40
$210.23K
AK Jensen Investment Management Ltd
9 Jul 2024
10% owner
Buy indirect
30,000
$3.05
$91.50K
AK Jensen Investment Management Ltd
8 Jul 2024
10% owner
Buy indirect
70,000
$3.05
$213.36K
Robert John Andrew Ryan
30 Apr 2024
Director
Buy
7,500
$3.34
$25.05K
Robert John Andrew Ryan
30 Apr 2024
Director
Buy
5,000
$3.36
$16.80K
Robert John Andrew Ryan
30 Apr 2024
Director
Buy
3,734
$3.72
$13.89K
Robert John Andrew Ryan
29 Apr 2024
Director
Buy
4,313
$3.20
$13.80K
Robert John Andrew Ryan
26 Apr 2024
Director
Buy
5,000
$3.48
$17.40K
Robert John Andrew Ryan
25 Apr 2024
Director
Buy
2,000
$3.40
$6.80K
Robert John Andrew Ryan
25 Apr 2024
Director
Buy
2,500
$3.46
$8.65K
Robert John Andrew Ryan
25 Apr 2024
Director
Buy
5,000
$3.40
$17.00K
Robert John Andrew Ryan
29 Jan 2024
Director
Buy
15,596
$2.35
$36.65K
Robert John Andrew Ryan
25 Jan 2024
Director
Buy
100
$2.54
$254.00
Robert John Andrew Ryan
17 Jan 2024
Director
Buy
100
$1.91
$191.00
Robert John Andrew Ryan
16 Jan 2024
Director
Buy
2,550
$1.92
$4.90K
Joshua Jay Donfeld
26 Oct 2023
Director
Buy
104,167
$0.96
$100.00K
Todd Wider
26 Oct 2023
Director
Buy
94,844
$0.96
$91.05K
Duncan Moore
26 Oct 2023
Director
Buy
104,167
$0.96
$100.00K
Duncan Moore
29 Jun 2023
Director
Buy
50,000
$0.50
$25.00K
Duncan Moore
29 Jun 2023
Director
Buy
50,000
$0.50
$25.00K
Duncan Moore
18 May 2023
Director
Buy
20,000
$0.31
$6.23K
Duncan Moore
10 May 2023
Director
Buy
10,000
$0.50
$5.00K
Duncan Moore
6 Apr 2023
Director
Buy
20,000
$1.00
$20.00K

What was left out

Form 4 filings counted 86
Amendments (4/A) skipped 0
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 32
Sales straight out of an exercise 1
Sales at will 12
Transactions with no price 2
Shares from compensation/vesting 17,534,548
History held since 15 Nov 2022