JSPR - Jasper Therapeutics, Inc.

Insider Purchase by Martell Ron (Pres, CEO)

6 Months
After Trade
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Trade Summary

5 months ago, Martell Ron, serving as Pres, CEO at Jasper Therapeutics, Inc. (JSPR), purchased 41,000 shares at $2.43 per share, for a total transaction value of $99,630.00. Following this transaction, Martell Ron now holds 74,118 shares of JSPR.

This purchase represents a 124.00% increase in Martell Ron's stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Monday, September 22, 2025 and publicly disclosed via SEC Form 4 filing on Wednesday, September 24, 2025, 2 days after the trade was made.

Jasper Therapeutics, Inc. operates in the HEALTHCARE sector, specifically within the BIOTECHNOLOGY industry. Insider buying activity in this sector can provide valuable signals about industry trends and company-specific developments.

Martell Ron

Pres, CEO

Ronald Martell (also referred to as Ron Martell) is a veteran biopharmaceutical executive and serial entrepreneur who founded five companies and served as CEO of three public biopharmaceutical companies.[[2]](https://jaspertx.com/team-members/ronald-martell/) His career highlights include roles as Senior Vice President of Commercial Operations at ImClone Systems, where he contributed to deals with Bristol-Myers Squibb and Merck KGaA and helped commercialize Erbitux®, and various leadership positions at Genotech, building its oncology franchise with launches of Herceptin® and Rituxan®.[[2]](https://jaspertx.com/team-members/ronald-martell/) He previously led MorphImmune, Inc. as President and CEO, Nuvelution Pharma, Indapta Therapeutics as Co-Founder and Executive Chairman, Orca Bio as Co-Founder, and Achieve Life Sciences as Co-Founder and CEO.[[2]](https://jaspertx.com/team-members/ronald-martell/) Martell joined Jasper Therapeutics, Inc. (NASDAQ: JSPR) as President and CEO in February 2022, overseeing the development of briquilimab, a monoclonal antibody targeting c-Kit for mast and stem cell diseases, and pivoting focus to mast cell-driven conditions like chronic spontaneous urticaria.[[1]](https://fintool.com/news/jasper-therapeutics-ceo-martell-departure)[[2]](https://jaspertx.com/team-members/ronald-martell/)[[3]](https://beyondspx.com/quote/JSPR/news/jasper-therapeutics-names-jeet-mahal-as-president-and-ceo) His 3.5-year tenure ended on January 5, 2026, when he stepped down (described variably as termination 'without cause' or resignation) amid a 97% stock decline, clinical setbacks, workforce cuts, lawsuits, and a going-concern warning.[[1]](https://fintool.com/news/jasper-therapeutics-ceo-martell-departure)[[3]](https://beyondspx.com/quote/JSPR/news/jasper-therapeutics-names-jeet-mahal-as-president-and-ceo)[[6]](https://fr.tradingview.com/news/tradingview:dd4c858251b18:0-jasper-therapeutics-announces-ceo-and-executive-chair-appointments/) The board promoted COO Jeet Mahal to CEO, with Martell receiving an 18-month severance package.[[1]](https://fintool.com/news/jasper-therapeutics-ceo-martell-departure)

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Trade Price

$2.43

Quantity

41,000

Total Value

$99,630.00

Shares Owned

74,118

Trade Date

Monday, September 22, 2025

153 days ago

SEC Filing Date

Wednesday, September 24, 2025

Filed 2 days after trade

HEALTHCAREBIOTECHNOLOGY

About Jasper Therapeutics, Inc.

Company Overview

No company information available
View news mentioning JSPR

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