Anna Berkenblit

CIK 1691868 · SVP & CHIEF MEDICAL OFFICER · last filed 2026-05-14

"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

$0

Companies

2

Total Filings

28

Lifetime Open-Market Net

-$522.7K

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
SRZNW Director $0.02 $0 5 2026-05-14
ImmunoGen, Inc. (IMGN) Delisted SVP & CHIEF MEDICAL OFFICER 113,935 $31.23 $3.56M -$522.7K 23 2023-07-05

Recent Filings · Page 2 of 3

28 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2022-02-08 ImmunoGen, Inc. (IMGN) Delisted Grant (A) $0 EDGAR
2022-01-04 ImmunoGen, Inc. (IMGN) Delisted Grant (A) +1,761 $9.9K EDGAR
2021-07-02 ImmunoGen, Inc. (IMGN) Delisted Grant (A) +2,062 $11.4K EDGAR
2021-02-09 ImmunoGen, Inc. (IMGN) Delisted Grant (A) $0 EDGAR
2021-01-05 ImmunoGen, Inc. (IMGN) Delisted Grant (A) +2,203 $8.9K EDGAR
2020-07-02 ImmunoGen, Inc. (IMGN) Delisted Grant (A) +3,047 $11.9K EDGAR
2020-02-25 ImmunoGen, Inc. (IMGN) Delisted Sell (S) −25,803 -$128.8K EDGAR
2020-02-11 ImmunoGen, Inc. (IMGN) Delisted Grant (A) $0 EDGAR
2019-07-02 ImmunoGen, Inc. (IMGN) Delisted Grant (A) +5,230 $9.6K EDGAR
2019-02-25 ImmunoGen, Inc. (IMGN) Delisted Sell (S) −16,562 -$92.7K EDGAR
Showing 1120 of 28
Page 2 of 3
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.