Douglas Kerr

CIK 1814189 · Chief Medical Officer · last filed 2026-05-14

Douglas Kerr is a Chief Medical Officer who has filed 26 SEC Form 4 insider transactions across 2 companies since 2021. The most recent filing shows the insider sold $28.7K of DYN on May 14, 2026. Across all open-market trades the lifetime net is −$1.7M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $3.1M 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

$3.09M

Companies

2

Total Filings

26

Lifetime Open-Market Net

-$1.71M

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
DYN Chief Medical Officer 170,042 $18.19 $3.09M -$153.1K 10 2026-05-14
Generation Bio Co. (GBIO) Delisted CHIEF MEDICAL OFFICER 385,628 $5.34 $2.06M -$1.55M 16 2024-01-31

Recent Filings

26 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2026-05-14 DYN Sell (S) −1,564 -$28.7K EDGAR
2026-03-06 DYN Sell (S) −904 -$13.5K EDGAR
2026-02-17 DYN Grant (A) +85,000 $0 EDGAR
2025-12-05 DYN Sell (S) −880 -$18.2K EDGAR
2025-09-08 DYN Sell (S) −4,425 -$58.8K EDGAR
2025-07-18 DYN Grant (A) $0 EDGAR
2025-06-06 DYN Sell (S) −1,342 -$17.9K EDGAR
2025-03-07 DYN Sell (S) −1,343 -$15.9K EDGAR
2024-12-06 DYN Grant (A) +48,000 $0 EDGAR
2024-09-03 DYN Grant (A) +47,500 $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.