James Brian Windsor insider trades: Rein Therapeutics (RNTX) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where James reports to the SEC
Open-market buys and sales
6 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Apr 30, 2026 | RNTX | ↑ Buy | 25,000 | $1.00 | $25K | Direct | May 13, 2026 (13d) |
| Dec 5, 2024 | ALRN | ↑ Buy | 400 | $2.24 | $898 | By son | Dec 9, 2024 (4d) |
| Dec 15, 2023 | ALRN | ↑ Buy | 225 | $3.37 | $758 | By son | Dec 18, 2023 (3d) |
| Nov 20, 2023 | ALRN | ↑ Buy | 5,076 | $1.97 | $10K | Direct | Nov 21, 2023 (1d) |
| Dec 7, 2020 | TFFP | ↓ Sell | 25,000 | $15.80 | $395K | Direct | Dec 9, 2020 (2d) |
| Oct 25, 2019 | TFFP | ↑ Buy | 5,000 | $5.00 | $25K | Direct | Oct 29, 2019 (4d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other RNTX insiders
Open-market trades in the last 12 months
About James Brian Windsor's insider trades
James Brian Windsor is See Remarks at Rein Therapeutics (RNTX). Since Oct 25, 2019, James has reported 5 open-market purchases worth $62K and 1 sale worth $395K on SEC Form 4. In the last 12 months: 1 buy ($25K).
Their filings also include grants and awards (5 filings), option exercises (2 filings). 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 RNTX insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.