Jasper Therapeutics, Inc. JSPR
We take great care to ensure that the data presented and summarized in this overview for Jasper Therapeutics, Inc. is accurate and up-to-date, based on a comprehensive analysis of 13F filing forms for institutional ownership and form 4 filings for insider transactions. Please note that this data may differ from other sources and should not be relied upon as the sole basis for investment decisions.
Top Institutions Holding JSPR
View allLatest Institutional Activity in JSPR
Top Purchases
Top Sells
About JSPR
Jasper Therapeutics, Inc., a clinical-stage biotechnology company, develops therapeutic agents for hematopoietic stem cell transplantation and gene therapies. It focuses on the development and commercialization of conditioning agents and stem cell engineering to allow expanded use of stem cell transplantation and ex vivo gene therapy, a technique in which genetic manipulation of cells is performed outside the body prior to transplantation. The company's lead product candidate is JSP191, which is in clinical development as a conditioning antibody that clears hematopoietic stem cells from bone marrow in patients prior to undergoing allogeneic stem cell therapy or stem cell gene therapy. It is also developing engineered hematopoietic stem cells product candidates to overcome key limitations of allogeneic and autologous gene-edited stem cell grafts. The company is based in Redwood City, California.
Insider Transactions at JSPR
Insider Transaction List
View all| Date | Insider | Transaction | Ownership Type | Shares Traded | Value / Price |
|---|---|---|---|---|---|
|
Sep 22
2025
|
Judith Anne Shizuru Director |
BUY
Open market or private purchase
|
Direct |
41,000
+20.72%
|
$82,000
$2.43 P/Share
|
|
Sep 22
2025
|
Ron Martell President and CEO |
BUY
Open market or private purchase
|
Direct |
41,000
+35.62%
|
$82,000
$2.43 P/Share
|
|
Sep 22
2025
|
Svetlana Lucas Director |
BUY
Open market or private purchase
|
Direct |
20,000
+50.0%
|
$40,000
$2.43 P/Share
|
|
Sep 22
2025
|
Thomas G Wiggans Director |
BUY
Open market or private purchase
|
Indirect |
41,000
+50.0%
|
$82,000
$2.43 P/Share
|
|
Dec 12
2024
|
Jeetinder Singh Mahal Chief Operating Officer |
SELL
Open market or private sale
|
Direct |
900
-3.47%
|
$19,800
$22.11 P/Share
|
|
Dec 12
2024
|
Jeetinder Singh Mahal Chief Operating Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
900
+3.36%
|
$6,300
$7.1 P/Share
|
|
Sep 12
2024
|
Jeetinder Singh Mahal Chief Operating Officer |
SELL
Open market or private sale
|
Direct |
900
-3.47%
|
$18,900
$21.23 P/Share
|
|
Sep 12
2024
|
Jeetinder Singh Mahal Chief Operating Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
900
+3.36%
|
$6,300
$7.1 P/Share
|
|
Jun 12
2024
|
Jeetinder Singh Mahal Chief Operating Officer |
SELL
Open market or private sale
|
Direct |
900
-3.47%
|
$21,600
$24.16 P/Share
|
|
Jun 12
2024
|
Jeetinder Singh Mahal Chief Operating Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
900
+3.36%
|
$6,300
$7.1 P/Share
|
|
Jun 07
2024
|
Edwin Jonathan Tucker Chief Medical Officer |
BUY
Grant, award, or other acquisition
|
Direct |
400
+50.0%
|
$1,600
$4.17 P/Share
|
|
Mar 12
2024
|
Jeetinder Singh Mahal Chief Operating Officer |
SELL
Open market or private sale
|
Direct |
900
-3.47%
|
$23,400
$26.44 P/Share
|
|
Mar 12
2024
|
Jeetinder Singh Mahal Chief Operating Officer |
BUY
Exercise of conversion of derivative security
|
Direct |
900
+3.36%
|
$6,300
$7.1 P/Share
|
|
Feb 08
2024
|
Carlyle Group Inc. |
BUY
Open market or private purchase
|
Indirect |
190,000
+15.13%
|
$2,280,000
$12.95 P/Share
|
|
Feb 08
2024
|
Velan Capital Investment Management LP > 10% Shareholder |
BUY
Open market or private purchase
|
Indirect |
350,000
+22.75%
|
$4,200,000
$12.95 P/Share
|
|
Nov 28
2023
|
Thomas G Wiggans Director |
BUY
Open market or private purchase
|
Direct |
10,000
+16.67%
|
$0
$0.65 P/Share
|
|
Nov 21
2023
|
Thomas G Wiggans Director |
BUY
Open market or private purchase
|
Direct |
10,000
+20.0%
|
$0
$0.64 P/Share
|
|
Nov 20
2023
|
Thomas G Wiggans Director |
BUY
Open market or private purchase
|
Direct |
10,000
+25.0%
|
$0
$0.63 P/Share
|
|
Nov 17
2023
|
Thomas G Wiggans Director |
BUY
Open market or private purchase
|
Direct |
10,000
+33.33%
|
$0
$0.6 P/Share
|
|
Nov 16
2023
|
Thomas G Wiggans Director |
BUY
Open market or private purchase
|
Direct |
10,000
+50.0%
|
$0
$0.6 P/Share
|
Last 12 Months Summary
| Open market or private purchase | 143K shares |
|---|---|
| Exercise of conversion of derivative security | 900 shares |
| Open market or private sale | 900 shares |
|---|