Estepan Ian Michael

Officer · SRPT

As of 2026-09-27, Estepan Ian Michael has 54 Form 4 transactions on record across 1 company — 16 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: $3.3MIndirect: $0$3.3Mas of 2026-09-27
  • Direct $3.3M
  • Indirect $0
SRPTdirect177,184 sh$3.3M

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

SRPT · 54 trades
2026-09-04: Withheld for tax, 24,799 sh ($551K)2026-03-11: Withheld for tax, 1,097 sh ($19K)2026-03-09: Withheld for tax, 1,036 sh ($18K)2026-03-09: Withheld for tax, 583 sh ($10K)2026-03-02: Withheld for tax, 3,301 sh ($53K)2026-03-02: Withheld for tax, 875 sh ($14K)2026-03-01: Option exercise, 8,125 sh ($0)2026-03-01: Option exercise, 8,125 sh2026-03-01: Option exercise, 8,125 sh2026-02-26: Option exercise, 5,381 sh ($74K)2026-02-26: Option exercise, 2,069 sh ($28K)2026-02-26: Option exercise, 5,381 sh ($0)2026-02-26: Option exercise, 2,069 sh ($0)2026-02-25: Award / grant, 1,875 sh2026-02-25: Award / grant, 1,875 sh2025-12-16: Sale, 13,187 sh ($294K)2025-09-03: Award / grant, 93,875 sh ($0)2025-09-03: Award / grant, 50,000 sh ($0)2025-08-05: Award / grant, 6,250 sh ($0)2025-03-10: Withheld for tax, 2,890 sh ($289K)2025-03-10: Withheld for tax, 1,051 sh ($105K)2025-03-10: Award / grant, 16,644 sh ($0)2025-03-10: Award / grant, 8,276 sh2025-03-10: Award / grant, 8,276 sh2025-03-07: Withheld for tax, 9,094 sh ($943K)2025-03-07: Withheld for tax, 585 sh ($61K)2025-03-07: Option exercise, 5,500 sh ($0)2025-03-07: Option exercise, 5,500 sh2025-03-07: Option exercise, 5,500 sh2025-03-06: Option exercise, 17,500 sh ($0)2025-03-06: Option exercise, 17,500 sh2025-03-06: Option exercise, 17,500 sh2025-03-04: Withheld for tax, 1,370 sh ($139K)2025-03-03: Withheld for tax, 557 sh ($58K)2025-02-11: Award / grant, 3,500 sh ($0)2025-01-29: Withheld for tax, 2,613 sh ($307K)2025-01-29: Option exercise, 14,267 sh ($171K)2025-01-29: Option exercise, 1,533 sh ($18K)2025-01-29: Option exercise, 1,533 sh ($0)2025-01-29: Option exercise, 14,267 sh ($0)2024-12-27: Gift, 250 sh ($0)2024-08-30: Sale, 5,985 sh ($822K)2024-06-24: Withheld for tax, 2,483 sh ($409K)2024-06-21: Award / grant, 6,250 sh ($0)2024-06-21: Option exercise, 6,250 sh ($0)2024-06-21: Award / grant, 5,500 sh ($0)2024-06-21: Option exercise, 6,250 sh2024-03-08: Withheld for tax, 1,035 sh ($127K)2024-03-07: Withheld for tax, 526 sh ($63K)2024-03-04: Withheld for tax, 1,389 sh ($174K)2024-03-01: Sale, 1,200 sh ($154K)2024-03-01: Withheld for tax, 365 sh ($46K)2024-03-01: Award / grant, 12,500 sh ($0)2024-03-01: Award / grant, 6,000 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2025-12-16SRPTSale13,187 @ $22.31$294K−6.4% of holding193,300Form 4
2024-08-30SRPTSale5,985 @ $137.36$822K−15.0% of holding33,946Form 4
2024-03-01SRPTSale1,200 @ $128.30$154K−3.0% of holding39,114Form 4
51 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-09-04SRPTWithheld for tax24,799177,184Form 4
2026-03-11SRPTWithheld for tax1,097201,983Form 4
2026-03-09SRPTWithheld for tax1,036203,663Form 4
2026-03-09SRPTWithheld for tax583203,080Form 4
2026-03-02SRPTWithheld for tax3,301205,574Form 4
2026-03-02SRPTWithheld for tax875204,699Form 4
2026-03-01SRPTOption exercise8,1250Form 4
2026-03-01SRPTOption exercise8,125208,875Form 4
2026-03-01SRPTOption exercise8,125208,875Form 4
2026-02-26SRPTOption exercise5,381200,750Form 4
2026-02-26SRPTOption exercise2,069195,369Form 4
2026-02-26SRPTOption exercise5,3810Form 4
2026-02-26SRPTOption exercise2,0690Form 4
2026-02-25SRPTAward / grant1,8758,125Form 4
2026-02-25SRPTAward / grant1,8758,125Form 4
2025-09-03SRPTAward / grant93,875156,487Form 4
2025-09-03SRPTAward / grant50,000206,487Form 4
2025-08-05SRPTAward / grant6,2506,250Form 4
2025-03-10SRPTWithheld for tax2,89054,336Form 4
2025-03-10SRPTWithheld for tax1,05157,226Form 4
2025-03-10SRPTAward / grant16,64416,644Form 4
2025-03-10SRPTAward / grant8,27662,612Form 4
2025-03-10SRPTAward / grant8,27662,612Form 4
2025-03-07SRPTWithheld for tax9,09452,777Form 4
2025-03-07SRPTWithheld for tax58561,871Form 4
2025-03-07SRPTOption exercise5,5000Form 4
2025-03-07SRPTOption exercise5,50058,277Form 4
2025-03-07SRPTOption exercise5,50058,277Form 4
2025-03-06SRPTOption exercise17,5000Form 4
2025-03-06SRPTOption exercise17,50062,456Form 4
2025-03-06SRPTOption exercise17,50062,456Form 4
2025-03-04SRPTWithheld for tax1,37044,956Form 4
2025-03-03SRPTWithheld for tax55746,326Form 4
2025-02-11SRPTAward / grant3,50017,500Form 4
2025-01-29SRPTWithheld for tax2,61346,883Form 4
2025-01-29SRPTOption exercise14,26747,963Form 4
2025-01-29SRPTOption exercise1,53349,496Form 4
2025-01-29SRPTOption exercise1,5330Form 4
2025-01-29SRPTOption exercise14,2670Form 4
2024-12-27SRPTGift25033,696Form 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.