Stapley Marc

Director · Officer · VCYT, GKOS

As of 2026-09-16, Stapley Marc has 39 Form 4 transactions on record across 2 companies — 24 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: $17.1MIndirect: $0$17.1Mas of 2026-09-16
  • Direct $17.1M
  • Indirect $0
VCYTdirect432,073 sh$16.6M
GKOSdirect2,987 sh$488K

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

VCYT · 26 trades
2026-09-02: Withheld for tax, 8,782 sh ($394K)2026-06-04: Sale, 138,051 sh ($6.9M)2026-06-04: Option exercise, 138,051 sh ($5.1M)2026-06-04: Option exercise, 138,051 sh ($0)2026-06-02: Withheld for tax, 9,012 sh ($431K)2026-03-06: Award / grant, 92,099 sh ($0)2026-03-04: Sale, 26,279 sh ($953K)2026-03-04: Sale, 19,244 sh ($684K)2026-03-02: Withheld for tax, 19,455 sh ($701K)2026-02-26: Withheld for tax, 35,841 sh ($1.4M)2026-02-26: Award / grant, 139,074 sh ($0)2025-12-04: Sale, 4,448 sh ($209K)2025-12-04: Sale, 3,220 sh ($152K)2025-12-02: Withheld for tax, 7,914 sh ($365K)2025-09-04: Sale, 7,667 sh ($233K)2025-09-02: Withheld for tax, 7,914 sh ($238K)2025-06-02: Withheld for tax, 9,399 sh ($251K)2025-03-06: Award / grant, 90,601 sh ($0)2025-03-04: Sale, 28,189 sh ($925K)2025-03-04: Sale, 23,414 sh ($794K)2025-03-04: Sale, 1,094 sh ($38K)2025-03-02: Withheld for tax, 20,324 sh ($706K)2025-02-27: Withheld for tax, 34,273 sh ($1.2M)2025-02-27: Award / grant, 67,277 sh ($0)2024-12-13: Sale, 5,190 sh ($225K)2024-12-13: Sale, 400 sh ($18K)
GKOS · 13 trades
2026-05-28: Award / grant, 1,878 sh ($0)2026-05-28: Award / grant, 2,987 sh ($0)2026-01-22: Sale, 4,325 sh ($558K)2026-01-22: Sale, 3,892 sh ($494K)2026-01-22: Sale, 3,812 sh ($481K)2026-01-22: Option exercise, 15,000 sh ($370K)2026-01-22: Sale, 1,671 sh ($214K)2026-01-22: Sale, 1,300 sh ($169K)2026-01-22: Option exercise, 15,000 sh ($0)2026-01-02: Award / grant, 727 sh ($0)2025-05-29: Award / grant, 2,108 sh ($0)2025-05-29: Award / grant, 3,149 sh ($0)2025-01-02: Award / grant, 538 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-06-04VCYTSale138,051 @ $50.12$6.9M−23.9% of holding440,494Form 4
2026-03-04VCYTSale26,279 @ $36.28$953K−6.8% of holding357,554Form 4
2026-03-04VCYTSale19,244 @ $35.56$684K−4.8% of holding383,833Form 4
2026-01-22GKOSSale4,325 @ $129.11$558K−10.0% of holding38,749Form 4
2026-01-22GKOSSale3,892 @ $126.96$494K−8.0% of holding44,745Form 4
2026-01-22GKOSSale3,812 @ $126.07$481K−7.3% of holding48,637Form 4
2026-01-22GKOSSale1,671 @ $127.92$214K−3.7% of holding43,074Form 4
2026-01-22GKOSSale1,300 @ $129.78$169K−3.4% of holding37,449Form 4
2025-12-04VCYTSale4,448 @ $46.90$209K−1.4% of holding321,823Form 4
2025-12-04VCYTSale3,220 @ $47.35$152K−1.0% of holding318,603Form 4
2025-09-04VCYTSale7,667 @ $30.41$233K−2.2% of holding334,185Form 4
2025-03-04VCYTSale28,189 @ $32.82$925K−8.8% of holding292,543Form 4
2025-03-04VCYTSale23,414 @ $33.91$794K−8.0% of holding269,129Form 4
2025-03-04VCYTSale1,094 @ $34.37$38K−0.4% of holding268,035Form 4
2024-12-13VCYTSale5,190 @ $43.37$225K−1.7% of holding307,745Form 4
2024-12-13VCYTSale400 @ $44.14$18K−0.1% of holding307,345Form 4
23 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-09-02VCYTWithheld for tax8,782432,073Form 4
2026-06-04VCYTOption exercise138,051578,545Form 4
2026-06-04VCYTOption exercise138,0510Form 4
2026-06-02VCYTWithheld for tax9,012440,494Form 4
2026-05-28GKOSAward / grant1,87839,327Form 4
2026-05-28GKOSAward / grant2,9872,987Form 4
2026-03-06VCYTAward / grant92,099449,653Form 4
2026-03-02VCYTWithheld for tax19,455403,077Form 4
2026-02-26VCYTWithheld for tax35,841422,532Form 4
2026-02-26VCYTAward / grant139,074458,373Form 4
2026-01-22GKOSOption exercise15,00052,449Form 4
2026-01-22GKOSOption exercise15,0000Form 4
2026-01-02GKOSAward / grant72737,449Form 4
2025-12-02VCYTWithheld for tax7,914326,271Form 4
2025-09-02VCYTWithheld for tax7,914341,852Form 4
2025-06-02VCYTWithheld for tax9,399349,237Form 4
2025-05-29GKOSAward / grant2,10836,722Form 4
2025-05-29GKOSAward / grant3,1493,149Form 4
2025-03-06VCYTAward / grant90,601358,636Form 4
2025-03-02VCYTWithheld for tax20,324320,732Form 4
2025-02-27VCYTWithheld for tax34,273341,056Form 4
2025-02-27VCYTAward / grant67,277375,329Form 4
2025-01-02GKOSAward / grant53834,614Form 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.