Jasper Therapeutics, Inc.

JSPRCIK 0001788028 · Every Form 4 filed by insiders at this issuer. See financials →

Annual report (10-K)

Latest 10-K/A filed Apr 30, 2026. Sentiment + YoY language diff vs prior year. Read sections →

Signal:NeutralFull-doc fallback

Full filing:tone -0.0002

Sentiment via Loughran-McDonald lexicon · YoY diff via Jaccard similarity + paragraph set difference.

Recent 8-K announcements

Per-item disclosure feed. Item 2.02 is the earnings release.

Jun 1, 20267.01 · Regulation FD Disclosure9.01 · Financial Statements and Exhibits May 21, 2026no items parsed May 14, 2026no items parsed Mar 30, 2026no items parsed Jan 8, 2026no items parsed

YoY shift: Unscored

Year-over-year tone shift - average net-tone change across Risk Factors and MD&A vs the prior 10-K.

Why YoY instead of absolute: the LM lexicon has ~6.6× more negative words than positive (legal/risk-disclosure language is heavy on hedging), so every 10-K reads bearish on raw tone. Year-over-year change strips that bias and surfaces the actual shift in management's framing.

Per-snippet highlights

Sentence-level sentiment highlighting with category and subcategory filters is coming once the snippet-scoring pipeline lands. For now, dig into the actual section text on the Sections tab.

Top insiders

Most active reporters at Jasper Therapeutics, Inc.

Name	Roles	Filings
Mahal Jeetinder Singh	OfficerDirector	15
Martell Ron	OfficerDirector	11
Wiggans Thomas G	Director	7
Cross Herb	Officer	5
Emster Kurt Von	Director10% Owner	5

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Top performers

Insiders ranked by realized 90-day signed return on their open-market trades at Jasper Therapeutics, Inc.. Minimum 3 scored trades. Returns are signed - a sale followed by a rally counts against the insider.

#	Insider	Trades	Win rate	Avg	Median	Best	Worst
1	Wiggans Thomas G	6	83%	+162.1%	+194.4%	+220.0%	-24.8%
2	Lis William	4	100%	+33.4%	+35.5%	+60.0%	+2.7%
3	Mahal Jeetinder Singh	5	80%	+29.5%	+15.5%	+73.7%	-4.7%

All filings

85 Form 4 / 4-A filings, newest first

Filed	Insider	Top transaction	Shares	Price	Value
Feb 10, 2026	Mahal Jeetinder Singh CEO and President · Director	Holdings only	-	-	-
Jan 5, 2026	Cross Herb Chief Financial Officer	Holdings only	-	-	-
Jan 5, 2026	Mahal Jeetinder Singh Chief Operating Officer	Holdings only	-	-	-
Jan 5, 2026	Martell Ron President, CEO and Director · Director	Holdings only	-	-	-
Sep 24, 2025	Shizuru Judith Anne Director	PPurchase	41,000	$2.43	$99,630

Showing 1-5 of 85

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Real-time Form 4 intelligence. Smarter insider tracking.

Filed		Top transaction	Shares	Price	Value