Shiferman Gregory L.

Officer · VYGR, SAGE

As of 2026-09-16, Shiferman Gregory L. has 20 Form 4 transactions on record across 2 companies — 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: $153KIndirect: $0$153Kas of 2026-09-16
  • Direct $153K
  • Indirect $0
VYGRdirect50,000 sh$153K

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

SAGE · 18 trades
2025-07-31: Disposition, 28,000 sh2025-07-31: Code U, 7,215 sh2025-07-31: Disposition, 23,735 sh2025-07-31: Disposition, 10,000 sh2025-07-31: Disposition, 10,000 sh2025-07-31: Code U, 7,215 sh2025-07-31: Disposition, 23,735 sh2025-07-31: Disposition, 28,000 sh2025-06-24: Withheld for tax, 79 sh ($728)2025-04-10: Withheld for tax, 176 sh ($1K)2025-04-10: Award / grant, 525 sh ($0)2025-03-24: Withheld for tax, 79 sh ($649)2025-02-24: Withheld for tax, 2,502 sh ($19K)2025-02-13: Withheld for tax, 376 sh ($3K)2025-02-13: Withheld for tax, 251 sh ($2K)2025-01-16: Award / grant, 28,000 sh ($0)2025-01-16: Award / grant, 14,000 sh ($0)2024-12-24: Withheld for tax, 79 sh ($433)
VYGR · 2 trades
2026-04-01: Award / grant, 50,000 sh ($0)2026-01-06: Award / grant, 100,000 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
20 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-04-01VYGRAward / grant50,00050,000Form 4
2026-01-06VYGRAward / grant100,000100,000Form 4
2025-07-31SAGEDisposition28,0000Form 4
2025-07-31SAGECode U7,2150Form 4
2025-07-31SAGEDisposition23,7350Form 4
2025-07-31SAGEDisposition10,0000Form 4
2025-07-31SAGEDisposition10,0000Form 4
2025-07-31SAGECode U7,2150Form 4
2025-07-31SAGEDisposition23,7350Form 4
2025-07-31SAGEDisposition28,0000Form 4
2025-06-24SAGEWithheld for tax7930,950Form 4
2025-04-10SAGEWithheld for tax17631,029Form 4
2025-04-10SAGEAward / grant52531,205Form 4
2025-03-24SAGEWithheld for tax7930,680Form 4
2025-02-24SAGEWithheld for tax2,50230,759Form 4
2025-02-13SAGEWithheld for tax37633,512Form 4
2025-02-13SAGEWithheld for tax25133,261Form 4
2025-01-16SAGEAward / grant28,00028,000Form 4
2025-01-16SAGEAward / grant14,00033,888Form 4
2024-12-24SAGEWithheld for tax7919,888Form 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.