Form4insider filings, from the source

Company · CIK 0001395937 · SIC 2834 — Pharmaceutical Preparations · Nasdaq

Syndax Pharmaceuticals Inc · SNDX

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $2.0M · 2net −$2.0M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesSep 2024Jan 2025May 2025Sep 2025Jan 2026May 2026Sep 2026

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Jul 8, 2026 SForm 4 →Jul 9, 4:54 pm EDTMichael A MetzgerChief Executive Officer, Director32,375$24.24$784,776484,843−6.26%10b5-1
Jul 8, 2026 MForm 4 →Jul 9, 4:54 pm EDTMichael A MetzgerChief Executive Officer, Director32,375$6.38$206,553517,218—10b5-1
Jun 11, 2026 SForm 4 →Jun 12, 5:09 pm EDTNicholas A.J. BotwoodHead of R&D, CMO65,515$18.07$1,183,64360,885−51.8%10b5-1
Jun 11, 2026 MForm 4 →Jun 12, 5:09 pm EDTNicholas A.J. BotwoodHead of R&D, CMO53,750$13.82$742,82592,120—10b5-1

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Jul 8, 2026 MForm 4 →Jul 9, 4:54 pm EDTMichael A MetzgerChief Executive Officer, Director32,375——0—10b5-1
Jun 11, 2026 MForm 4 →Jun 12, 5:09 pm EDTNicholas A.J. BotwoodHead of R&D, CMO53,750——0—10b5-1