Sachs David C.

Officer · IBRX

As of 2026-09-27, Sachs David C. has 19 Form 4 transactions on record across 1 company — 9 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.

Reconstructed holdings

Direct: $343KIndirect: $0$343Kas of 2026-09-27
  • Direct $343K
  • Indirect $0
IBRXdirect40,651 sh$343K

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

IBRX · 19 trades
2026-02-22: Withheld for tax, 20,682 sh ($180K)2026-02-22: Option exercise, 40,650 sh ($0)2026-02-22: Option exercise, 40,650 sh ($0)2026-02-10: Withheld for tax, 42,643 sh ($296K)2026-02-10: Option exercise, 82,236 sh ($0)2026-02-10: Option exercise, 82,236 sh ($0)2025-12-31: Withheld for tax, 15,435 sh ($31K)2025-12-31: Option exercise, 30,397 sh ($0)2025-12-31: Option exercise, 30,397 sh ($0)2025-02-22: Withheld for tax, 15,860 sh ($54K)2025-02-22: Option exercise, 40,650 sh ($0)2025-02-22: Option exercise, 40,650 sh ($0)2025-02-10: Award / grant, 843,750 sh ($0)2025-02-10: Award / grant, 246,710 sh ($0)2024-12-31: Withheld for tax, 15,405 sh ($39K)2024-12-31: Option exercise, 30,397 sh ($0)2024-12-31: Option exercise, 30,397 sh ($0)2024-02-22: Award / grant, 424,390 sh ($0)2024-02-22: Award / grant, 121,951 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
19 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-02-22IBRXWithheld for tax20,682300,143Form 4
2026-02-22IBRXOption exercise40,650320,825Form 4
2026-02-22IBRXOption exercise40,65040,651Form 4
2026-02-10IBRXWithheld for tax42,643280,175Form 4
2026-02-10IBRXOption exercise82,236322,818Form 4
2026-02-10IBRXOption exercise82,236164,474Form 4
2025-12-31IBRXWithheld for tax15,435240,582Form 4
2025-12-31IBRXOption exercise30,39745,602Form 4
2025-12-31IBRXOption exercise30,397256,017Form 4
2025-02-22IBRXWithheld for tax15,860225,620Form 4
2025-02-22IBRXOption exercise40,65081,301Form 4
2025-02-22IBRXOption exercise40,650241,480Form 4
2025-02-10IBRXAward / grant843,750843,750Form 4
2025-02-10IBRXAward / grant246,710246,710Form 4
2024-12-31IBRXWithheld for tax15,405200,830Form 4
2024-12-31IBRXOption exercise30,39775,999Form 4
2024-12-31IBRXOption exercise30,397216,235Form 4
2024-02-22IBRXAward / grant424,390424,390Form 4
2024-02-22IBRXAward / grant121,951121,951Form 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.