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ASP Isotopes Inc.

ASPI Net selling
CIK 0001921865 #2957 in the set updated 17 Sep 2026
Bought (120 mo)
$1.05M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$19.85M
$14.97M on a plan · $680.12K straight out of an exercise
Sold at will
$4.20M
11 of 43 sales
Net
−$18.81M
−$3.15M against sales at will

By person

13 insiders · 72 transactions
Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
Mann Paul Elliot
Chairman and CEO
— (1)
$12.65M (15) scheduled
−$12.65M
9,328,570
7.41%
$40.04M
+242.2%
Ainscow Robert
COO
— (1)
$2.67M (14) scheduled
−$2.67M
2,248,441
1.79%
$9.65M
+799.4%
Wider Todd
Director
$91.05K (1)
$1.27M (3)
−$1.18M
672,247
0.5339%
$2.89M
+236.1%
Gorley Michael
Director
—
$812.34K (2)
−$812.34K
87,908
0.0698%
$377.30K
+8,691%
Kiessling Heather
Chief Financial Officer
—
$735.73K (3)
−$735.73K
1,526,252
1.21%
$6.55M
+12,110%
Ainscow Donald George
EVP, Gen Counsel, Secretary
—
$706.11K (2)
−$706.11K
776,322
0.6166%
$3.33M
+676.3%
Moore Duncan
Director
$181.22K (6)
$756.83K (2)
−$575.61K
1,044,928
0.8299%
$4.48M
+422.5%
AK Jensen Investment Management Ltd entity
10% owner
$515.09K (3)
$256.30K (2)
+$258.78K
6,746,874
5.36%
$28.96M
+1.2%
Ryan Robert John Andrew
Director
$161.38K (12)
—
+$161.38K
652,222
0.5180%
$2.80M
+38.9%
Donfeld Joshua Jay
Director
$100.00K (1)
—
+$100.00K
1,104,167
0.8770%
$4.74M
+38.0%
Vasnetsov Sergey
Director
—
—
—
3,838,607
3.05%
$16.48M
+74.5%
Strydom Hendrik
Director
—
—
—
3,797,423
3.02%
$16.30M
+5.6%
Hunter Ralph L. JR
Director
—
—
—
47,018
0.0373%
$201.80K
—

Individual transactions

72
Insider
Date
Role
Action
Shares
Price
Amount
Ainscow Robert
8 Sep 2026
COO
Sold on a plan
8,438
$4.29
$36.22K
Mann Paul Elliot
4 Sep 2026
Chairman and CEO
Sold on a plan
83,759
$4.10
$343.41K
Mann Paul Elliot
3 Sep 2026
Chairman and CEO
Sold on a plan
83,758
$3.92
$328.33K
Mann Paul Elliot
2 Sep 2026
Chairman and CEO
Sold on a plan
83,758
$3.91
$327.49K
Ainscow Robert
2 Sep 2026
COO
Sold on a plan
25,000
$3.91
$97.63K
Ainscow Donald George
2 Sep 2026
EVP, Gen Counsel, Secretary
Sell
23,678
$3.89
$92.11K
Kiessling Heather
1 Jul 2026
Chief Financial Officer
Sold on a plan
23,124
$6.28
$145.22K
Gorley Michael
30 Jun 2026
Director
Sell
30,000
$6.27
$188.10K
Wider Todd
30 Jun 2026
Director
Sell
50,000
$6.12
$306.00K
Ainscow Donald George
30 Jun 2026
EVP, Gen Counsel, Secretary
Sell
100,000
$6.14
$614.00K
Wider Todd
29 Jun 2026
Director
Sell
50,000
$6.25
$312.50K
Ainscow Robert
8 Jun 2026
COO
Sold on a plan
8,438
$7.00
$59.06K
Mann Paul Elliot
3 Jun 2026
Chairman and CEO
Sold on a plan
83,759
$7.76
$649.97K
Mann Paul Elliot
2 Jun 2026
Chairman and CEO
Sold on a plan
83,758
$8.29
$694.35K
Mann Paul Elliot
1 Jun 2026
Chairman and CEO
Sold on a plan
83,758
$7.88
$660.01K
Moore Duncan
16 Apr 2026
Director
Sold on a plan
11,642
$5.21
$60.60K
Ainscow Robert
16 Apr 2026
COO
Sold on a plan
22,500
$5.21
$117.11K
Kiessling Heather
15 Apr 2026
Chief Financial Officer
Sold on a plan
23,124
$5.48
$126.67K
Ainscow Robert
6 Mar 2026
COO
Sold on a plan
8,438
$5.44
$45.89K
Ainscow Robert
6 Mar 2026
COO
Sold on a plan
25,000
$4.51
$112.78K
Mann Paul Elliot
2 Mar 2026
Executive Chairman
Sold on a plan
162,153
$5.44
$881.46K
Kiessling Heather
18 Dec 2025
Chief Financial Officer
Sell
80,000
$5.80
$463.84K
Ainscow Robert
8 Dec 2025
Interim CEO and COO
Sold on a plan
8,438
$6.20
$52.34K
Mann Paul Elliot
1 Dec 2025
Executive Chairman
Sold on a plan
162,153
$5.75
$932.87K
Mann Paul Elliot
25 Nov 2025
Executive Officer
Sold on a plan
50,000
$5.77
$288.45K
Ainscow Robert
25 Nov 2025
Interim CEO and COO
Sold on a plan
25,000
$5.77
$144.23K
Ainscow Robert
17 Nov 2025
Interim CEO and COO
Sold on a plan
67,500
$7.51
$506.72K
Mann Paul Elliot
17 Nov 2025
Executive Officer
Sold on a plan
112,500
$7.51
$844.54K
Ainscow Robert
14 Oct 2025
Interim CEO and COO
Sold on a plan
22,500
$13.60
$305.98K
Gorley Michael
30 Sep 2025
Director
Sell
64,000
$9.75
$624.24K
Wider Todd
15 Sep 2025
Director
Sell
74,108
$8.76
$648.82K
Wider Todd
14 Sep 2025
Director
Exercised, kept
96,000
$2.00
$192.00K
Mann Paul Elliot
9 Sep 2025
Chief Executive Officer
Sold after exercise
81,077
$8.39
$680.12K
Ainscow Robert
9 Sep 2025
Chief Operating Officer
Exercised, kept
135,000
$2.00
$270.00K
Ainscow Robert
9 Sep 2025
Chief Operating Officer
Exercised, kept
12,000
$2.00
$24.00K
Ainscow Robert
9 Sep 2025
Chief Operating Officer
Exercised, kept
150,000
$0.25
$37.50K
Mann Paul Elliot
8 Sep 2025
Chief Executive Officer
Sold on a plan
81,076
$8.53
$691.41K
Ainscow Robert
8 Sep 2025
Chief Operating Officer
Sold on a plan
8,438
$8.53
$71.94K
Moore Duncan
29 Aug 2025
Director
Sell
75,000
$9.28
$696.23K
Mann Paul Elliot
17 Apr 2025
Chief Executive Officer
Sold on a plan
316,666
$5.62
$1.78M
Ainscow Robert
17 Apr 2025
Chief Operating Officer
Sold on a plan
66,668
$5.62
$374.76K
Mann Paul Elliot
16 Apr 2025
Chief Executive Officer
Sold on a plan
316,667
$5.45
$1.72M
Ainscow Robert
16 Apr 2025
Chief Operating Officer
Sold on a plan
66,666
$5.45
$363.02K
Mann Paul Elliot
15 Apr 2025
Chief Executive Officer
Sold on a plan
316,667
$5.75
$1.82M
Ainscow Robert
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
Mann Paul Elliot
15 Jul 2024
Chief Executive Officer
Buy
39,984
—
no price
Ainscow Robert
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
Ryan Robert John Andrew
30 Apr 2024
Director
Buy
7,500
$3.34
$25.05K
Ryan Robert John Andrew
30 Apr 2024
Director
Buy
5,000
$3.36
$16.80K
Ryan Robert John Andrew
30 Apr 2024
Director
Buy
3,734
$3.72
$13.89K
Ryan Robert John Andrew
29 Apr 2024
Director
Buy
4,313
$3.20
$13.80K
Ryan Robert John Andrew
26 Apr 2024
Director
Buy
5,000
$3.48
$17.40K
Ryan Robert John Andrew
25 Apr 2024
Director
Buy
2,000
$3.40
$6.80K
Ryan Robert John Andrew
25 Apr 2024
Director
Buy
2,500
$3.46
$8.65K
Ryan Robert John Andrew
25 Apr 2024
Director
Buy
5,000
$3.40
$17.00K
Ryan Robert John Andrew
29 Jan 2024
Director
Buy
15,596
$2.35
$36.65K
Ryan Robert John Andrew
25 Jan 2024
Director
Buy
100
$2.54
$254.00
Ryan Robert John Andrew
17 Jan 2024
Director
Buy
100
$1.91
$191.00
Ryan Robert John Andrew
16 Jan 2024
Director
Buy
2,550
$1.92
$4.90K
Donfeld Joshua Jay
26 Oct 2023
Director
Buy
104,167
$0.96
$100.00K
Wider Todd
26 Oct 2023
Director
Buy
94,844
$0.96
$91.05K
Moore Duncan
26 Oct 2023
Director
Buy
104,167
$0.96
$100.00K
Moore Duncan
29 Jun 2023
Director
Buy
50,000
$0.50
$25.00K
Moore Duncan
29 Jun 2023
Director
Buy
50,000
$0.50
$25.00K
Moore Duncan
18 May 2023
Director
Buy
20,000
$0.31
$6.23K
Moore Duncan
10 May 2023
Director
Buy
10,000
$0.50
$5.00K
Moore Duncan
6 Apr 2023
Director
Buy
20,000
$1.00
$20.00K

What was left out

Form 4 filings counted 82
Amendments (4/A) skipped 0
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 31
Sales straight out of an exercise 1
Sales at will 11
Transactions with no price 2
Shares from compensation/vesting 17,534,548
History held since 15 Nov 2022