Stein Jeffrey

Director · Officer · IDYA, CDTX

As of 2026-09-16, Stein Jeffrey has 50 Form 4 transactions on record across 2 companies — 35 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.

Pattern in the record: open-market purchases filed in March in multiple years since 2017 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.

Reconstructed holdings

Direct: $755KIndirect: $0$755Kas of 2026-09-16
  • Direct $755K
  • Indirect $0
IDYAdirect20,000 sh$755K

Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.

Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.

Trades by company

CDTX · 47 trades
2026-01-07: Disposition, 67,498 sh ($15.0M)2026-01-07: Disposition, 5,763 sh ($1.3M)2026-01-07: Disposition, 2,379 sh ($527K)2026-01-07: Disposition, 16,499 sh2026-01-07: Disposition, 11,749 sh2026-01-07: Disposition, 13,249 sh2026-01-07: Disposition, 16,499 sh2026-01-07: Disposition, 26,249 sh2026-01-07: Disposition, 16,499 sh2026-01-07: Disposition, 27,174 sh2026-01-07: Disposition, 51,999 sh2026-01-07: Disposition, 560,888 sh2026-01-07: Disposition, 275,000 sh2026-01-07: Disposition, 7,949 sh2026-01-07: Disposition, 11,000 sh2026-01-07: Disposition, 7,949 sh2026-01-07: Disposition, 11,000 sh2026-01-07: Disposition, 11,749 sh2026-01-07: Disposition, 13,249 sh2026-01-07: Disposition, 16,499 sh2026-01-07: Disposition, 26,249 sh2026-01-07: Disposition, 27,174 sh2026-01-07: Disposition, 51,999 sh2026-01-07: Disposition, 560,888 sh2026-01-07: Disposition, 275,000 sh2025-12-22: Gift, 5,425 sh ($0)2025-12-19: Gift, 10,638 sh ($0)2025-12-19: Gift, 10,638 sh ($0)2025-12-17: Gift, 2,244 sh ($0)2025-12-17: Gift, 2,244 sh ($0)2025-12-10: Withheld for tax, 2,285 sh ($502K)2025-12-10: Gift, 33,072 sh ($0)2025-12-10: Gift, 33,072 sh ($0)2025-03-31: Award / grant, 275,000 sh ($0)2021-12-31: Gift, 937 sh ($0)2021-12-31: Gift, 1,873 sh ($0)2020-12-10: Other acquisition, 658 sh ($0)2020-11-10: Other acquisition, 2,500 sh ($100K)2020-11-10: Purchase, 2,500 sh ($100K)2017-09-12: Purchase, 367 sh ($50K)2017-09-12: Other acquisition, 367 sh ($50K)2017-06-05: Purchase, 750 sh ($89K)2017-06-05: Other acquisition, 750 sh ($89K)2017-03-31: Other acquisition, 645 sh ($100K)2017-03-31: Purchase, 645 sh ($100K)2016-05-23: Other acquisition, 270 sh2016-05-23: Other acquisition, 270 sh
IDYA · 3 trades
2026-06-16: Award / grant, 20,000 sh ($0)2026-03-02: Purchase, 50,000 sh ($1.6M)2025-06-24: Award / grant, 20,000 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-03-02IDYAPurchase50,000 @ $32.96$1.6M+1168.0% of holding54,281Form 4
2020-11-10CDTXPurchase2,500 @ $40.01$100K+3.7% of holding69,371Form 4
2017-09-12CDTXPurchase367 @ $135.80$50K+0.6% of holding66,871Form 4
2017-06-05CDTXPurchase750 @ $118.95$89K+1.1% of holding66,504Form 4
2017-03-31CDTXPurchase645 @ $155.00$100K+1.0% of holding65,754Form 4
45 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-06-16IDYAAward / grant20,00020,000Form 4
2026-01-07CDTXDisposition67,4980Form 4
2026-01-07CDTXDisposition5,7630Form 4
2026-01-07CDTXDisposition2,3790Form 4
2026-01-07CDTXDisposition16,4990Form 4
2026-01-07CDTXDisposition11,7490Form 4
2026-01-07CDTXDisposition13,2490Form 4
2026-01-07CDTXDisposition16,4990Form 4
2026-01-07CDTXDisposition26,2490Form 4
2026-01-07CDTXDisposition16,4990Form 4
2026-01-07CDTXDisposition27,1740Form 4
2026-01-07CDTXDisposition51,9990Form 4
2026-01-07CDTXDisposition560,8880Form 4
2026-01-07CDTXDisposition275,0000Form 4
2026-01-07CDTXDisposition7,9490Form 4
2026-01-07CDTXDisposition11,0000Form 4
2026-01-07CDTXDisposition7,9490Form 4
2026-01-07CDTXDisposition11,0000Form 4
2026-01-07CDTXDisposition11,7490Form 4
2026-01-07CDTXDisposition13,2490Form 4
2026-01-07CDTXDisposition16,4990Form 4
2026-01-07CDTXDisposition26,2490Form 4
2026-01-07CDTXDisposition27,1740Form 4
2026-01-07CDTXDisposition51,9990Form 4
2026-01-07CDTXDisposition560,8880Form 4
2026-01-07CDTXDisposition275,0000Form 4
2025-12-22CDTXGift5,42565,109Form 4
2025-12-19CDTXGift10,63870,534Form 4
2025-12-19CDTXGift10,63810,295Form 4
2025-12-17CDTXGift2,24459,896Form 4
2025-12-17CDTXGift2,24420,883Form 4
2025-12-10CDTXWithheld for tax2,28556,199Form 4
2025-12-10CDTXGift33,07257,652Form 4
2025-12-10CDTXGift33,07223,127Form 4
2025-06-24IDYAAward / grant20,00020,000Form 4
2025-03-31CDTXAward / grant275,000275,000Form 4
2021-12-31CDTXGift9372,379Form 4
2021-12-31CDTXGift1,87367,498Form 4
2020-12-10CDTXOther acquisition6581,442Form 4
2020-11-10CDTXOther acquisition2,5005,763Form 4

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

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.