Bryan Giraudo insider trades: Protagonist Therapeutics (PTGX) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Bryan reports to the SEC
Open-market buys and sales
17 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| May 8, 2026 | PTGX | ↓ Sell | 41,130 | $100.12 | $4.1M | Direct | May 11, 2026 (3d) |
| May 8, 2026 | PTGX | ↓ Sell | 18,000 | $100.05 | $1.8M | By Bryan & Courtney Giraudo Trust | May 11, 2026 (3d) |
| Jun 18, 2024 | GOSS | ↑ Buy | 100,000 | $0.59 | $59K | By family trust | Jun 20, 2024 (2d) |
| Mar 27, 2024 | GOSS | ↓ Sell | 6,430 | $1.16 | $7K | Direct | Mar 28, 2024 (1d) |
| Nov 13, 2023 | GOSS | ↑ Buy | 200,000 | $0.56 | $113K | By family trust | Nov 14, 2023 (1d) |
| Apr 4, 2023 | GOSS | ↑ Buy | 55,000 | $1.02 | $56K | By family trust | Apr 5, 2023 (1d) |
| Mar 20, 2023 | GOSS | ↑ Buy | 50,000 | $0.97 | $48K | By family trust | Mar 22, 2023 (2d) |
| Jul 15, 2022 | GOSS | ↑ Buy | 13,869 | $7.21 | $100K | By family trust | Jul 15, 2022 (0d) |
| Mar 23, 2022 | GOSS | ↓ Sell | 10,722 | $8.91 | $96K | Direct | Mar 24, 2022 (1d) |
| Mar 23, 2021 | GOSS | ↓ Sell | 5,490 | $9.48 | $52K | Direct | Mar 25, 2021 (2d) |
| Oct 14, 2020 | GOSS | ↑ Buy | 3,000 | $10.01 | $30K | By family trust | Oct 14, 2020 (0d) |
| Jun 23, 2020 | GOSS | ↑ Buy | 2,000 | $12.96 | $26K | By family trust | Jun 23, 2020 (0d) |
| Dec 3, 2019 | PTGX | ↑ Buy | 8,000 | $5.70 | $46K | By Bryan & Courtney Giraudo Trust | Dec 3, 2019 (0d) |
| Sep 26, 2019 | GOSS | ↑ Buy | 1,121 | $16.78 | $19K | By family trust | Sep 26, 2019 (0d) |
| May 30, 2019 | GOSS | ↑ Buy | 1,000 | $18.70 | $19K | By family trust | Jun 3, 2019 (4d) |
| Feb 12, 2019 | GOSS | ↑ Buy | 6,000 | $16.00 | $96K | Direct | Feb 12, 2019 (0d) |
| May 16, 2017 | PTGX | ↑ Buy | 10,000 | $6.46 | $65K | Direct | May 17, 2018 (366d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other PTGX insiders
Open-market trades in the last 12 months
About Bryan Giraudo's insider trades
Bryan Giraudo is a director at Protagonist Therapeutics (PTGX). Since May 16, 2017, Bryan has reported 12 open-market purchases worth $676K and 5 sales worth $6.1M on SEC Form 4. In the last 12 months: 2 sales ($5.9M).
Their filings also include grants and awards (26 filings), shares returned to the company (2 filings), option exercises (1 filing), conversions (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every PTGX insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.