RA Capital Management, L.P. Insider Trading Activity
RA Capital Management, L.P., an institutional filer, recorded 136 transactions over the last 12 months across 16 companies totaling $605.3M.
Activity concentrated in SION with 44 filings. The largest single transaction was a purchase of CDTX for $100.0M on Jun 26, 2025.
Performance Scorecard
Forward stock performance after each transaction by RA Capital Management, L.P.. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | +28.0% | +20.6% | 57% | 123 |
| 90 days | +52.8% | +22.0% | 92% | 96 |
| 120 days | +90.1% | +27.9% | 100% | 90 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
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Showing the 50 most recent of 138 disclosed trades.
| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | ROLE |
|---|---|---|---|---|---|---|
| May 20, 2026 | COAG | Buy | 996 | $24.94 | $25K | 10%+ Owner |
| May 19, 2026 | COAG | Buy | 3,802 | $24.97 | $95K | 10%+ Owner |
| May 12, 2026 | HOWL | Sell | 94,432 | $0.64 | $60K | 10%+ Owner |
| May 12, 2026 | HOWL | Sell | 6,719 | $0.64 | $4K | 10%+ Owner |
| May 12, 2026 | COAG | Buy | 6,387 | $24.90 | $159K | 10%+ Owner |
| May 11, 2026 | COAG | Buy | 14,149 | $24.47 | $346K | 10%+ Owner |
| May 11, 2026 | HOWL | Sell | 5,812 | $0.67 | $4K | 10%+ Owner |
| May 11, 2026 | COAG | Buy | 25,720 | $25.00 | $643K | 10%+ Owner |
| May 11, 2026 | HOWL | Sell | 81,678 | $0.67 | $55K | 10%+ Owner |
| May 11, 2026 | ARTV | Buy | 6,510,416 | $11.52 | $75.0M | Director |
| May 8, 2026 | COAG | Buy | 1,483 | $24.98 | $37K | 10%+ Owner |
| May 8, 2026 | HOWL | Sell | 25,012 | $0.71 | $18K | 10%+ Owner |
| May 8, 2026 | HOWL | Sell | 351,514 | $0.71 | $250K | 10%+ Owner |
| May 7, 2026 | COAG | Buy | 1,985 | $24.95 | $50K | 10%+ Owner |
| May 7, 2026 | COAG | Buy | 7,921 | $24.34 | $193K | 10%+ Owner |
| May 6, 2026 | COAG | Buy | 14,611 | $23.77 | $347K | Director |
| May 6, 2026 | COAG | Buy | 53,407 | $24.83 | $1.3M | Director |
| May 5, 2026 | COAG | Buy | 10,268 | $25.00 | $257K | Director |
| May 5, 2026 | COAG | Buy | 87,143 | $24.59 | $2.1M | Director |
| May 4, 2026 | COAG | Buy | 133,750 | $18.00 | $2.4M | Director |
| May 4, 2026 | COAG | Buy | 2,541,250 | $18.00 | $45.7M | Director |
| Apr 22, 2026 | VOR | Sell | 165,150 | $15.77 | $2.6M | Director |
| Apr 20, 2026 | VOR | Sell | 171,963 | $15.77 | $2.7M | Director |
| Apr 17, 2026 | VOR | Sell | 458,411 | $16.28 | $7.5M | Director |
| Apr 15, 2026 | VOR | Sell | 53,644 | $16.01 | $859K | Director |
| Apr 14, 2026 | VOR | Sell | 153,735 | $15.97 | $2.5M | Director |
| Apr 13, 2026 | VOR | Sell | 530,610 | $16.15 | $8.6M | Director |
| Apr 10, 2026 | VOR | Sell | 828 | $15.75 | $13K | Director |
| Apr 9, 2026 | VOR | Sell | 135,201 | $16.59 | $2.2M | Director |
| Apr 8, 2026 | VOR | Sell | 353,242 | $16.32 | $5.8M | Director |
| Apr 8, 2026 | VOR | Sell | 130,862 | $16.91 | $2.2M | Director |
| Apr 6, 2026 | VOR | Sell | 6,775 | $18.50 | $125K | Director |
| Apr 6, 2026 | VOR | Sell | 44,728 | $17.31 | $774K | Director |
| Apr 6, 2026 | VOR | Sell | 537,754 | $16.51 | $8.9M | Director |
| Apr 2, 2026 | VOR | Sell | 258,475 | $18.23 | $4.7M | Director |
| Apr 2, 2026 | VOR | Sell | 1,525 | $19.06 | $29K | Director |
| Mar 30, 2026 | WVE | Buy | 971,091 | $6.50 | $6.3M | Director |
| Mar 30, 2026 | MLYS | Buy | 58,300 | $24.16 | $1.4M | Director |
| Mar 27, 2026 | WVE | Buy | 2,495,623 | $6.43 | $16.0M | Director |
| Mar 27, 2026 | MLYS | Buy | 310,700 | $23.67 | $7.4M | Director |
| Mar 26, 2026 | WVE | Buy | 351,224 | $6.38 | $2.2M | Director |
| Mar 26, 2026 | WVE | Buy | 4,954,558 | $6.06 | $30.0M | Director |
| Feb 26, 2026 | BCAX | Buy | 300,000 | $16.00 | $4.8M | Director |
| Feb 20, 2026 | ACET | Buy | 74,751 | $7.27 | $543K | 10%+ Owner |
| Feb 19, 2026 | ACET | Buy | 74,268 | $7.21 | $535K | 10%+ Owner |
| Feb 18, 2026 | ACET | Buy | 74,577 | $7.04 | $525K | 10%+ Owner |
| Feb 9, 2026 | SGP | Buy | 248,034 | $16.00 | $4.0M | Director |
| Feb 9, 2026 | SGP | Buy | 3,441,966 | $16.00 | $55.1M | Director |
| Jan 5, 2026 | CLYM | Buy | 7,111 | $3.50 | $25K | Director |
| Dec 12, 2025 | CLYM | Buy | 101,462 | $2.86 | $290K | Director |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| SION | Sionna Therapeutics, Inc. | 44 | $21.5M |
| VOR | Vor Biopharma Inc. | 43 | $83.1M |
| COAG | Hemab Therapeutics Holdings, Inc. | 14 | $53.8M |
| TYRA | Tyra Biosciences, Inc. | 6 | $15.3M |
| HOWL | Werewolf Therapeutics, Inc. | 6 | $391K |
| WVE | Wave Life Sciences Ltd. | 5 | $54.6M |
| ACET | Adicet Bio, Inc. | 3 | $1.6M |
| FULC | Fulcrum Therapeutics, Inc. | 3 | $58.4M |
| CLYM | Climb Bio, Inc. | 3 | $780K |
| MLYS | Mineralys Therapeutics, Inc. | 3 | $38.8M |
Other insiders at Sionna Therapeutics, Inc.
6 other tracked filers at SION.