Zakrzewski Joseph S

Director · ANTX

As of 2026-09-17, Zakrzewski Joseph S has 20 Form 4 transactions on record across 1 company — 14 in the trailing 12 months.

Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.

Trades by company

ANTX · 20 trades
2026-08-14: Gift, 405,880 sh ($0)2026-03-19: Disposition, 10,362 sh2026-03-19: Disposition, 23,742 sh2026-03-19: Award / grant, 99,999 sh2026-03-19: Disposition, 99,999 sh2026-03-19: Award / grant, 10,362 sh2026-03-19: Disposition, 10,362 sh2026-03-19: Award / grant, 23,742 sh2026-03-19: Disposition, 23,742 sh2026-03-19: Award / grant, 99,999 sh2026-03-19: Disposition, 99,999 sh2026-03-19: Award / grant, 10,362 sh2026-03-19: Award / grant, 23,742 sh2026-02-20: Award / grant, 20,400 sh ($0)2025-05-22: Award / grant, 19,111 sh ($0)2025-04-10: Award / grant, 10,523 sh ($0)2024-12-19: Award / grant, 9,816 sh ($0)2024-11-27: Purchase, 2,000 sh ($3K)2024-11-19: Purchase, 5,000 sh ($5K)2024-11-18: Purchase, 20,000 sh ($20K)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2024-11-27ANTXPurchase2,000 @ $1.40$3K+1.6% of holding125,199Form 4
2024-11-19ANTXPurchase5,000 @ $1.01$5K+4.2% of holding123,199Form 4
2024-11-18ANTXPurchase20,000 @ $1.00$20K+20.4% of holding118,199Form 4
17 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-08-14ANTXGift405,8800Form 4
2026-03-19ANTXDisposition10,3620Form 4
2026-03-19ANTXDisposition23,7420Form 4
2026-03-19ANTXAward / grant99,99999,999Form 4
2026-03-19ANTXDisposition99,9990Form 4
2026-03-19ANTXAward / grant10,36210,362Form 4
2026-03-19ANTXDisposition10,3620Form 4
2026-03-19ANTXAward / grant23,74223,742Form 4
2026-03-19ANTXDisposition23,7420Form 4
2026-03-19ANTXAward / grant99,99999,999Form 4
2026-03-19ANTXDisposition99,9990Form 4
2026-03-19ANTXAward / grant10,36210,362Form 4
2026-03-19ANTXAward / grant23,74223,742Form 4
2026-02-20ANTXAward / grant20,40020,400Form 4
2025-05-22ANTXAward / grant19,11119,111Form 4
2025-04-10ANTXAward / grant10,523145,538Form 4
2024-12-19ANTXAward / grant9,816135,015Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

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