Tracy Zimmermann

CIK 1830668 · CHIEF DEVELOPMENT OFFICER · last filed 2024-01-31

Tracy Zimmermann is a CHIEF DEVELOPMENT OFFICER who has filed 17 SEC Form 4 insider transactions across 1 company since 2020. The most recent filing, for GBIO, was dated Jan 31, 2024. Across all open-market trades the lifetime net is −$559.1K, making them a net seller over the disclosed history.

"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

1

Total Filings

17

Lifetime Open-Market Net

-$559.1K

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
Generation Bio Co. (GBIO) Delisted CHIEF DEVELOPMENT OFFICER 49,164 $5.34 $262.5K -$559.1K 17 2024-01-31

Recent Filings

17 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2024-01-31 Generation Bio Co. (GBIO) Delisted Mixed +3,545 -$2.8K EDGAR
2024-01-17 Generation Bio Co. (GBIO) Delisted Mixed +9,234 -$9.4K EDGAR
2023-10-17 Generation Bio Co. (GBIO) Delisted Mixed +5,254 -$7.1K EDGAR
2023-07-18 Generation Bio Co. (GBIO) Delisted Mixed +5,254 -$11.1K EDGAR
2023-04-18 Generation Bio Co. (GBIO) Delisted Mixed +5,254 -$9.8K EDGAR
2023-01-24 Generation Bio Co. (GBIO) Delisted Grant (A) $0 EDGAR
2023-01-18 Generation Bio Co. (GBIO) Delisted Mixed +4,860 -$13.1K EDGAR
2022-10-18 Generation Bio Co. (GBIO) Delisted Mixed +5,254 -$12.3K EDGAR
2022-07-19 Generation Bio Co. (GBIO) Delisted Mixed +10,509 -$31.4K EDGAR
2022-01-25 Generation Bio Co. (GBIO) Delisted Grant (A) $0 EDGAR
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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.