10 insiders reported 26 Form 4 transactions for Tourmaline Bio, Inc. (TRML) over the past 18 months (most recent 2025-10-28). Recent activity: MCDADE MARK (Director) Sell 448,431 shares, Johnson Kevin Bruce (Chief Regulatory Officer) Sell 11,046 shares, Castelein Caley (Director) Sell 431,939 shares, MIDDLEKAUFF W BRADFORD (CBO, GC and Secretary) Sell 60,988 shares, MIDDLEKAUFF W BRADFORD (CBO, GC and Secretary) Sell 8,213 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2025-10-28 | MCDADE MARK | Director | Sell | 448,431 | $0 |
| 2025-10-28 | Johnson Kevin Bruce | Chief Regulatory Officer | Sell | 11,046 | $0 |
| 2025-10-28 | Castelein Caley | Director | Sell | 431,939 | $0 |
| 2025-10-28 | MIDDLEKAUFF W BRADFORD | CBO, GC and Secretary | Sell | 60,988 | $0 |
| 2025-10-28 | MIDDLEKAUFF W BRADFORD | CBO, GC and Secretary | Sell | 8,213 | $0 |
| 2025-10-28 | Kulkarni Sandeep Chidambar | CEO | Sell | 724,664 | $0 |
| 2025-10-28 | Kulkarni Sandeep Chidambar | CEO | Sell | 30,387 | $0 |
| 2025-10-28 | Castelein Caley | Director | Sell | 515,997 | $0 |
| 2025-10-28 | Robinson Ryan F. | CFO | Sell | 14,366 | $0 |
| 2025-10-28 | Jones Susan Dana | Chief Technology Officer | Sell | 19,782 | $0 |
| 2025-10-28 | Jones Susan Dana | Chief Technology Officer | Sell | 3,152 | $0 |
| 2025-10-28 | MCDADE MARK | Director | Sell | 518 | $0 |
| 2025-10-28 | MCDADE MARK | Director | Sell | 183,177 | $0 |
| 2025-10-28 | MCDADE MARK | Director | Sell | 110,083 | $0 |
| 2025-10-28 | Srivastava Sapna | Director | Sell | 518 | $0 |
| 2025-10-28 | Thiara Parvinder | Director | Sell | 83,782 | $0 |
| 2025-10-28 | KANTOFF AARON | Director | Sell | 88,281 | $0 |
| 2025-10-28 | Johnson Kevin Bruce | Chief Regulatory Officer | Sell | 40,538 | $0 |
| 2025-10-28 | Kulkarni Sandeep Chidambar | CEO | Sell | 7,000 | $0 |
| 2025-10-24 | Robinson Ryan F. | CFO | Buy | 14,366 | $199,975 |
| 2025-10-24 | KANTOFF AARON | Director | Sell | 5,000 | $0 |
| 2025-10-24 | Kulkarni Sandeep Chidambar | CEO | Buy | 25,316 | $199,996 |
| 2025-10-17 | Castelein Caley | Director | Sell | 522 | $0 |
| 2025-10-17 | Johnson Kevin Bruce | Chief Regulatory Officer | Sell | 6,250 | $0 |
| 2025-09-09 | KANTOFF AARON | Director | Buy | 37,890 | $4,926 |
Source: SEC Form 4 filings · as of 2025-10-28
