MITCHEL SAYARE

CIK 1201196 · Chairman of the Board · last filed 2026-05-01

MITCHEL SAYARE is a Chairman of the Board who has filed 45 SEC Form 4 insider transactions across 3 companies since 2007. The most recent filing, for ALT, was dated May 1, 2026. Across all open-market trades the lifetime net is −$4.3M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $154.0K 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

$154.0K

Companies

3

Total Filings

45

Lifetime Open-Market Net

-$4.29M

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
ALT Director 59,013 $2.61 $154.0K $10.0K 13 2026-05-01
Altimmune, Inc. (PIP) Delisted Director 217,139 $10.8K 11 2016-11-23
ImmunoGen, Inc. (IMGN) Delisted Director 383,136 $31.23 $11.97M -$4.31M 21 2011-08-01

Recent Filings

45 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2026-05-01 ALT Grant (A) $0 EDGAR
2025-09-29 ALT Grant (A) $0 EDGAR
2024-09-30 ALT Grant (A) $0 EDGAR
2023-09-29 ALT Grant (A) $0 EDGAR
2022-09-30 ALT Grant (A) $0 EDGAR
2021-09-24 ALT Grant (A) $0 EDGAR
2020-10-16 ALT Exer (M) +25,275 $0 EDGAR
2020-09-28 ALT Grant (A) $0 EDGAR
2020-06-29 ALT Grant (A) $0 EDGAR
2019-01-04 ALT Grant (A) $0 EDGAR
Showing 110 of 45
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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.