Home

Michael Grissinger

CIK 1757601 · last filed 2026-08-07

Michael Grissinger is a corporate insider who has filed 13 SEC Form 4 insider transactions across 5 companies since 2018. The most recent filing, for LPCN, was dated Aug 7, 2026. Current disclosed insider exposure totals $4.7K across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

Loading insider history…
Disclosed Exposure

$4.7K

Companies

5

Total Filings

13

Lifetime Open-Market Net

$0

Filer Profile

Reported Address
C/O RESTORBIO, INC.
500 BOYLSTON ST., 12TH FLOOR
BOSTON, MA 02116
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
LPCN Director — $2.27 — $0 2 2026-08-07
ACET Director — $9.52 — $0 2 2026-06-23
APRE Director 6,024 $0.77 $4.7K $0 5 2026-06-17
AKTX Director — $11.30 — $0 1 2024-07-02
Adicet Bio, Inc. (TORC) Delisted Director — — — $0 3 2020-06-05

Recent Filings

13 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2026-08-07 LPCN Grant (A) — $0 EDGAR
2026-08-07 LPCN Grant (A) — $0 EDGAR
2026-06-23 ACET Grant (A) — $0 EDGAR
2026-06-17 APRE Grant (A) +3,135 $0 EDGAR
2025-06-09 APRE Grant (A) +1,045 $0 EDGAR
2025-04-21 ACET Grant (A) — $0 EDGAR
2024-07-02 AKTX Grant (A) — $0 EDGAR
2024-06-21 APRE Grant (A) +1,045 $0 EDGAR
2023-08-24 APRE Grant (A) +500 $0 EDGAR
2022-08-01 APRE Grant (A) +5,995 $0 EDGAR
Showing 1–10 of 13
Page 1 of 2
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.