Bickerstaff George

Director · CDNA

As of 2026-09-16, Bickerstaff George has 6 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: $7.2MIndirect: $0$7.2Mas of 2026-09-16
  • Direct $7.2M
  • Indirect $0
CDNAdirect134,061 sh$7.2M

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

CDNA · 6 trades
2026-08-05: Sale, 20,000 sh ($926K)2026-06-12: Award / grant, 9,795 sh ($0)2025-09-11: Option exercise, 29,136 sh ($232K)2025-09-11: Option exercise, 29,136 sh ($0)2025-06-13: Award / grant, 12,103 sh ($0)2025-03-10: Sale, 20,000 sh ($367K)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-08-05CDNASale20,000 @ $46.28$926K−13.0% of holding134,061Form 4
2025-03-10CDNASale20,000 @ $18.36$367K−16.3% of holding103,027Form 4
4 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-06-12CDNAAward / grant9,795154,061Form 4
2025-09-11CDNAOption exercise29,136144,266Form 4
2025-09-11CDNAOption exercise29,1360Form 4
2025-06-13CDNAAward / grant12,103115,130Form 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.