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Michael Mendelsohn

CIK 1591109 · last filed 2026-06-25

Michael Mendelsohn is a corporate insider who has filed 13 SEC Form 4 insider transactions across 4 companies since 2014. The most recent filing, for FHTX, was dated Jun 25, 2026. Current disclosed insider exposure totals $400 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.

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Disclosed Exposure

$400

Companies

4

Total Filings

13

Lifetime Open-Market Net

$0

Filer Profile

Reported Address
C/O CYCLERION THERAPEUTICS, INC.
301 BINNEY STREET
CAMBRIDGE, MA 02142
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
FHTX Director — $4.83 — $0 6 2026-06-25
CYCN Director 17 $23.52 $400 $0 5 2022-06-16
Tobira Therapeutics, Inc. (TBRA) Delisted Director — — — $0 1 2015-01-05
Tobira Therapeutics, Inc. (RGDO) Delisted Director — — — $0 1 2014-01-03

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
2026-06-25 FHTX Grant (A) — $0 EDGAR
2025-06-17 FHTX Grant (A) — $0 EDGAR
2024-06-28 FHTX Grant (A) — $0 EDGAR
2023-06-22 FHTX Grant (A) — $0 EDGAR
2022-06-22 FHTX Grant (A) — $0 EDGAR
2022-06-16 CYCN Grant (A) — $0 EDGAR
2021-07-14 FHTX Grant (A) — $0 EDGAR
2021-06-28 CYCN Grant (A) — $0 EDGAR
2020-06-18 CYCN Grant (A) — $0 EDGAR
2019-06-04 CYCN Grant (A) — $0 EDGAR
Showing 1–10 of 13
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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.