Casdin Alexander W.

Director · ERAS

As of 2026-09-27, Casdin Alexander W. has 5 Form 4 transactions on record across 1 company — 2 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: $426KIndirect: $0$426Kas of 2026-09-27
  • Direct $426K
  • Indirect $0
ERASdirect29,888 sh$426K

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

ERAS · 5 trades
2026-06-26: Award / grant, 29,888 sh ($0)2026-01-01: Award / grant, 23,872 sh ($0)2025-06-24: Award / grant, 120,000 sh ($0)2024-06-20: Award / grant, 60,000 sh ($0)2024-05-21: Purchase, 80,000 sh ($182K)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2024-05-21ERASPurchase80,000 @ $2.27$182K+16.2% of holding573,974Form 4
4 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-06-26ERASAward / grant29,88829,888Form 4
2026-01-01ERASAward / grant23,87223,872Form 4
2025-06-24ERASAward / grant120,000120,000Form 4
2024-06-20ERASAward / grant60,00060,000Form 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.