Neil Gregory Almstead sold $3.6M of PTCT
CHIEF TECHNICAL OPS OFFICER at PTC THERAPEUTICS, INC.. 55,000 shares at an average of $66.05, traded Oct 3, 2025, filed Oct 7, 2025.
Score components
- +15RoleOfficer
- +25Trade size$3.6M at market
- +20Share of holdings soldSold 53% of holdings
- +15Cluster4 insiders selling within 14 days
- -15Exercise and sellShares came from an option exercise in the same filing
- -2010b5-1 planPre-scheduled under a 10b5-1 plan
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
This signal so far: 1m +13.6%, 3m +20.0%, 6m +8.9%.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001578850-25-000003, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Oct 3, 2025 | MOption exercise Common Stock10b5-1 | +3,442 | $30.86 | $106k | 104,067 | Oct 7, 2025 |
| Oct 3, 2025 | SOpen-market sale Common Stock10b5-1 | -1,609 | $65.46 | $105k | 102,458 | Oct 7, 2025 |
| Oct 3, 2025 | SOpen-market sale Common Stock10b5-1 | -1,760 | $66.56 | $117k | 100,698 | Oct 7, 2025 |
| Oct 3, 2025 | SOpen-market sale Common Stock10b5-1 | -73 | $67.16 | $4,903 | 100,625 | Oct 7, 2025 |
| Oct 3, 2025 | MOption exercise Common Stock10b5-1 | +51,558 | $30.86 | $1.6M | 152,183 | Oct 7, 2025 |
| Oct 3, 2025 | SOpen-market sale Common Stock10b5-1 | -23,419 | $65.45 | $1.5M | 128,764 | Oct 7, 2025 |
| Oct 3, 2025 | SOpen-market sale Common Stock10b5-1 | -23,863 | $66.45 | $1.6M | 104,901 | Oct 7, 2025 |
| Oct 3, 2025 | SOpen-market sale Common Stock10b5-1 | -4,276 | $67.15 | $287k | 100,625 | Oct 7, 2025 |
| Oct 3, 2025 | MOption exercise Stock Option (Right to Buy)derivative10b5-1 | -3,442 | $0.00 | $0 | 51,558 | Oct 7, 2025 |
| Oct 3, 2025 | MOption exercise Stock Option (Right to Buy)derivative10b5-1 | -51,558 | $0.00 | $0 | 0 | Oct 7, 2025 |
Related signals
Other insiders at PTC THERAPEUTICS, INC. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| Pro nowfree Oct 20, 2026 | PTC THERAPEUTICS, INC. | Mark Elliott Boulding EXEC. VP AND CLO | $12k 192 shares | -0% | |
| Pro nowfree Oct 16, 2026 | PTC THERAPEUTICS, INC. | Michael Schmertzler director | $158k 2,500 shares | -0% | |
| 6Weak | PTC THERAPEUTICS, INC. | Mark Elliott Boulding EXEC. VP AND CLO | $133k 2,073 shares | -2% | |
| 27Weak | PTC THERAPEUTICS, INC. | Glenn Steele Jr Md Phd director | $782k 12,000 shares | -35% | |
| 28Weak | PTC THERAPEUTICS, INC. | Michael Schmertzler director | $1.3M 20,000 shares | -2% | |
| 20Weak | PTC THERAPEUTICS, INC. | Michael Schmertzler director | $1.4M 20,000 shares | -1% | |
| 28Weak | PTC THERAPEUTICS, INC. | Michael Schmertzler director | $1.8M 25,000 shares | -2% | |
| 28Weak | PTC THERAPEUTICS, INC. | Michael Schmertzler director | $1.8M 25,000 shares | -2% | |
| 7Weak | PTC THERAPEUTICS, INC. | Mark Elliott Boulding EXEC. VP AND CLO | $204k 2,813 shares | -3% | |
| 34Weak | PTC THERAPEUTICS, INC. | Matthew B. Klein CHIEF EXECUTIVE OFFICER | $706k 10,292 shares | -3% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.