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Bryan Giraudo

CIK 1740847 · COO/CFO · last filed 2026-08-26

Bryan Giraudo is a COO/CFO who has filed 43 SEC Form 4 insider transactions across 2 companies since 2018. The most recent filing, for GOSS, was dated Aug 26, 2026. Across all open-market trades the lifetime net is −$5.4M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $5.7M 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

$5.69M

Companies

2

Total Filings

43

Lifetime Open-Market Net

-$5.40M

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
GOSS COO/CFO 869,747 $0.17 $145.6K $410.9K 28 2026-08-26
PTGX Director 37,825 $146.49 $5.54M -$5.81M 12 2026-05-11

Recent Filings

43 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
2026-08-26 GOSS Grant (A) — $0 EDGAR
2026-05-11 PTGX Mixed −23,130 -$5.68M EDGAR
2026-05-08 PTGX Notice (144) −11,130 -$1.11M EDGAR
2026-05-07 PTGX Notice (144) −36,000 -$3.60M EDGAR
2026-05-07 PTGX Notice (144) −12,000 -$1.20M EDGAR
2026-03-20 GOSS Mixed — $0 EDGAR
2026-01-06 PTGX Grant (A) +2,695 $0 EDGAR
2026-01-05 GOSS Grant (A) +115,750 $0 EDGAR
2025-10-02 GOSS Grant (A) +181,250 $0 EDGAR
2025-03-06 GOSS Grant (A) — $0 EDGAR
Showing 1–10 of 43
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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.