Home

Hideki Garren

CIK 1854126 · Chief Medical Officer · last filed 2024-02-29

Hideki Garren is a Chief Medical Officer who has filed 23 SEC Form 4 insider transactions across 2 companies since 2021. The most recent filing, for PRTA, was dated Feb 29, 2024. Across all open-market trades the lifetime net is −$3.1M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $8.0K 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.

Loading insider history…
Disclosed Exposure

$8.0K

Companies

2

Total Filings

23

Lifetime Open-Market Net

-$3.06M

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
PRTA Chief Medical Officer 0 $8.56 $0 -$3.06M 16 2024-02-29
COYA Director 2,000 $4.00 $8.0K $0 2 2024-01-19

Recent Filings

23 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
2024-02-29 PRTA Grant (A) — $0 EDGAR
2024-01-19 COYA Grant (A) — $0 EDGAR
2023-09-13 PRTA Notice (144) −2,000 -$110.8K EDGAR
2023-09-13 PRTA Mixed — -$61.2K EDGAR
2023-08-16 PRTA Notice (144) −2,000 -$117.5K EDGAR
2023-08-16 PRTA Mixed — -$67.7K EDGAR
2023-07-12 PRTA Notice (144) −2,000 -$135.0K EDGAR
2023-07-12 PRTA Mixed — -$85.2K EDGAR
2023-06-16 PRTA Notice (144) −7,331 -$542.5K EDGAR
2023-06-16 PRTA Mixed — -$360.0K EDGAR
Showing 1–10 of 23
Page 1 of 3
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.