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Jasper Therapeutics, Inc.

JSPR Net buying
CIK 0001788028 #4988 in the set updated 22 Sep 2026
Bought (120 mo)
$16.07M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$2.64M
$6.78K on a plan · $99.45K straight out of an exercise
Sold at will
$2.53M
32 of 38 sales
Net
+$13.43M
+$13.54M against sales at will

By person

20 insiders · 51 transactions
Insider
Role
Bought
Sold
Net
Holding
Worth
Change
Carlyle Group Inc. entity
Former 10% Owner
$7.16M (2)
+$7.16M
1,066,189
$2.59M
Velan Capital Investment Management LP entity
10% owner
$4.53M (1)
+$4.53M
1,188,500
$2.89M
+41.7%
Qiming U.S. Healthcare Fund II, L.P. entity
10% owner
$4.00M (1)
+$4.00M
8,519,648
$20.70M
+45.6%
GLAZER CAPITAL, LLC entity
10% owner
$2.25M (26)
−$2.25M
895,059
$2.17M
−20.1%
ROCHE HOLDING LTD entity
10% owner
$141.75K (1)
−$141.75K
4,549,606
$11.06M
−1.6%
WIGGANS THOMAS G
Director
$130.74K (6)
+$130.74K
91,000
$221.13K
Lis William
Director
$120.45K (4)
−$120.45K
53,521
$130.06K
MARTELL RON
President, CEO and Director
$99.63K (1)
+$99.63K
74,118
$180.11K
Shizuru Judith Anne
Director
$99.63K (1)
+$99.63K
156,901
$381.27K
+81.6%
Mahal Jeetinder Singh
CEO and President
$99.45K (5) scheduled
−$99.45K
25,009
$60.77K
Lucas Svetlana
Director
$48.60K (1)
+$48.60K
20,000
$48.60K
EMSTER KURT VON
Director
$13.52K (1)
−$13.52K
21,175
$51.46K
French Anna Louise
Director
$10.36K (1)
−$10.36K
23,750
$57.71K
HOFFEN HOWARD I
FORMER DIRECTOR
2,300,000
$5.59M
Clifford Kenneth F
FORMER OFFICER
2,300,000
$5.59M
VENKATARAMAN BALAJI
FORMER DIRECTOR AND OFFICER
2,300,000
$5.59M
Amplitude Healthcare Holdings LLC entity
10% owner
2,300,000
$5.59M
Nolet Chris
Director
32,500
$78.98K
Klein Lawrence Otto
Director
24,500
$59.54K
Tucker Edwin Jonathan
Chief Medical Officer
400
$972.00

No percentages here. This company's share count has moved by a factor of 2.2 over the window, from 15,022,122 to 33,274,561 shares. A split, a merger or a large issue changes what the company is, and a holding measured at one point in that run is not a fraction of it at another.

Insider
Date
Role
Action
Shares
Price
Amount
Shizuru Judith Anne
22 Sep 2025
Director
Buy
41,000
$2.43
$99.63K
MARTELL RON
22 Sep 2025
President and CEO
Buy
41,000
$2.43
$99.63K
Lucas Svetlana
22 Sep 2025
Director
Buy
20,000
$2.43
$48.60K
WIGGANS THOMAS G
22 Sep 2025
Director
Buy indirect
41,000
$2.43
$99.63K
Mahal Jeetinder Singh
12 Dec 2024
Chief Operating Officer
Sold after exercise
900
$22.11
$19.90K
Mahal Jeetinder Singh
12 Sep 2024
Chief Operating Officer
Sold after exercise
900
$21.23
$19.10K
Mahal Jeetinder Singh
12 Jun 2024
Chief Operating Officer
Sold after exercise
900
$24.16
$21.74K
Mahal Jeetinder Singh
12 Mar 2024
Chief Operating Officer
Sold after exercise
900
$26.44
$23.79K
Velan Capital Investment Management LP
8 Feb 2024
10% owner
Buy indirect
350,000
$12.95
$4.53M
Carlyle Group Inc.
8 Feb 2024
Former 10% Owner
Buy indirect
190,000
$12.95
$2.46M
WIGGANS THOMAS G
28 Nov 2023
Director
Buy
10,000
$0.65
$6.49K
WIGGANS THOMAS G
21 Nov 2023
Director
Buy
10,000
$0.64
$6.38K
WIGGANS THOMAS G
20 Nov 2023
Director
Buy
10,000
$0.63
$6.31K
WIGGANS THOMAS G
17 Nov 2023
Director
Buy
10,000
$0.60
$5.97K
WIGGANS THOMAS G
16 Nov 2023
Director
Buy
10,000
$0.60
$5.97K
Lis William
13 Oct 2023
Director
Sold on a plan
7,965
$0.85
$6.78K
Mahal Jeetinder Singh
13 Jun 2023
See Remarks
Sold after exercise
9,000
$1.66
$14.91K
French Anna Louise
14 Apr 2023
Director
Sell
7,000
$1.48
$10.36K
Lis William
13 Apr 2023
Director
Sell
8,500
$1.44
$12.24K
EMSTER KURT VON
13 Apr 2023
Director
Sell
9,075
$1.49
$13.52K
Carlyle Group Inc.
27 Jan 2023
10% owner
Buy indirect
3,133,333
$1.50
$4.70M
Qiming U.S. Healthcare Fund II, L.P.
27 Jan 2023
10% owner
Buy
2,666,666
$1.50
$4.00M
ROCHE HOLDING LTD
25 Jan 2023
10% owner
Sell indirect
75,000
$1.89
$141.75K
Lis William
27 Jun 2022
Director
Sell
24,743
$2.08
$51.40K
Lis William
24 Jun 2022
Director
Sell
24,743
$2.02
$50.03K
GLAZER CAPITAL, LLC
23 Apr 2021
10% owner
Sell indirect
151,719
$9.92
$1.51M
GLAZER CAPITAL, LLC
21 Apr 2021
10% owner
Sell indirect
1,164
$9.92
$11.55K
GLAZER CAPITAL, LLC
19 Apr 2021
10% owner
Sell indirect
2,060
$9.97
$20.54K
GLAZER CAPITAL, LLC
22 Feb 2021
10% owner
Sell indirect
698
$10.50
$7.33K
GLAZER CAPITAL, LLC
19 Feb 2021
10% owner
Sell indirect
2,112
$10.50
$22.18K
GLAZER CAPITAL, LLC
18 Feb 2021
10% owner
Sell indirect
10,000
$10.45
$104.50K
GLAZER CAPITAL, LLC
5 Feb 2021
10% owner
Sell indirect
212
$10.40
$2.20K
GLAZER CAPITAL, LLC
14 Jan 2021
10% owner
Sell indirect
101
$10.40
$1.05K
GLAZER CAPITAL, LLC
8 Jan 2021
10% owner
Sell indirect
10,000
$10.25
$102.50K
GLAZER CAPITAL, LLC
30 Dec 2020
10% owner
Sell indirect
75
$10.25
$768.75
GLAZER CAPITAL, LLC
29 Dec 2020
10% owner
Sell indirect
18
$10.25
$184.50
GLAZER CAPITAL, LLC
28 Dec 2020
10% owner
Sell indirect
10,000
$10.20
$102.00K
GLAZER CAPITAL, LLC
22 Dec 2020
10% owner
Sell indirect
10,000
$10.15
$101.50K
GLAZER CAPITAL, LLC
15 Dec 2020
10% owner
Sell indirect
10,000
$10.15
$101.50K
GLAZER CAPITAL, LLC
14 Dec 2020
10% owner
Sell indirect
5,000
$10.05
$50.25K
GLAZER CAPITAL, LLC
11 Dec 2020
10% owner
Sell indirect
5,000
$10.05
$50.25K
GLAZER CAPITAL, LLC
7 Dec 2020
10% owner
Sell indirect
1
$10.05
$10.05
GLAZER CAPITAL, LLC
21 Sep 2020
10% owner
Sell indirect
1,000
$10.00
$10.00K
GLAZER CAPITAL, LLC
18 Sep 2020
10% owner
Sell indirect
1,000
$10.00
$10.00K
GLAZER CAPITAL, LLC
16 Sep 2020
10% owner
Sell indirect
20
$9.99
$199.80
GLAZER CAPITAL, LLC
15 Sep 2020
10% owner
Sell indirect
800
$9.99
$7.99K
GLAZER CAPITAL, LLC
11 Sep 2020
10% owner
Sell indirect
682
$9.99
$6.81K
GLAZER CAPITAL, LLC
8 Sep 2020
10% owner
Sell indirect
1
$9.99
$9.99
GLAZER CAPITAL, LLC
4 Sep 2020
10% owner
Sell indirect
11
$10.73
$118.03
GLAZER CAPITAL, LLC
17 Aug 2020
10% owner
Sell indirect
1,699
$9.99
$16.97K
GLAZER CAPITAL, LLC
13 Aug 2020
10% owner
Sell indirect
1,699
$9.99
$16.97K

What was left out

Form 4 filings counted 123
Amendments (4/A) skipped 0
Filings about a different issuer 0
Unreadable filings 0
Joint filings 20
Sales on a Rule 10b5-1 plan 1
Sales straight out of an exercise 5
Sales at will 32
Transactions with no price 0
Shares from compensation/vesting 10,450,258
Sales filed before the plan box existed 29
History held since 7 Jan 2020