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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

31
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
Kiessling Heather
1 Jul 2026
Chief Financial Officer
Sold on a plan
23,124
$6.28
$145.22K
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
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
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
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
Show all 72 transactions →

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