Guyer Charles Greg

Officer · BMRN

As of 2026-09-16, Guyer Charles Greg has 16 Form 4 transactions on record across 1 company — 8 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 sales filed in March in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.

Reconstructed holdings

Direct: $5.4MIndirect: $0$5.4Mas of 2026-09-16
  • Direct $5.4M
  • Indirect $0
BMRNdirect84,140 sh$5.4M

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

BMRN · 16 trades
2026-03-17: Withheld for tax, 1,693 sh ($95K)2026-03-16: Award / grant, 35,680 sh ($0)2026-03-16: Award / grant, 14,990 sh ($0)2026-03-13: Withheld for tax, 9,109 sh ($533K)2026-03-11: Sale, 16,486 sh ($997K)2026-02-25: Award / grant, 6,176 sh ($0)2026-02-25: Award / grant, 6,675 sh ($0)2026-02-25: Award / grant, 2,371 sh ($0)2025-03-17: Award / grant, 30,880 sh ($0)2025-03-17: Award / grant, 13,310 sh ($0)2025-03-14: Withheld for tax, 20,127 sh ($1.4M)2025-03-06: Sale, 7,034 sh ($501K)2025-02-28: Withheld for tax, 4,287 sh ($305K)2025-02-25: Award / grant, 11,040 sh ($0)2025-02-25: Award / grant, 9,660 sh ($0)2025-02-25: Award / grant, 9,367 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-03-11BMRNSale16,486 @ $60.46$997K−17.1% of holding79,953Form 4
2025-03-06BMRNSale7,034 @ $71.28$501K−7.4% of holding87,655Form 4
14 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-03-17BMRNWithheld for tax1,69384,140Form 4
2026-03-16BMRNAward / grant35,68035,680Form 4
2026-03-16BMRNAward / grant14,99085,833Form 4
2026-03-13BMRNWithheld for tax9,10970,843Form 4
2026-02-25BMRNAward / grant6,17687,393Form 4
2026-02-25BMRNAward / grant6,67594,068Form 4
2026-02-25BMRNAward / grant2,37196,439Form 4
2025-03-17BMRNAward / grant30,88030,880Form 4
2025-03-17BMRNAward / grant13,31080,838Form 4
2025-03-14BMRNWithheld for tax20,12767,528Form 4
2025-02-28BMRNWithheld for tax4,28794,689Form 4
2025-02-25BMRNAward / grant11,04079,949Form 4
2025-02-25BMRNAward / grant9,66089,609Form 4
2025-02-25BMRNAward / grant9,36798,976Form 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.