Tourmaline Bio, Inc.
Total Trades
9
Buys
9
Sells
0
Largest Trade
$1M+
Insiders
5
Institutional Funds
23
Inst. Value
$1M+
Activist Filings
25
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Kulkarni Sandeep Chidambar | CEO | BUY | $15K–$50K | 2K | $14.85 | Aug 22, 2024 |
| Kulkarni Sandeep Chidambar | CEO | BUY | $50K–$100K | 5K | $13.79 | Aug 20, 2024 |
| MCDADE MARK | Director | BUY | $1M+ | 100K | $32.50 | Jan 31, 2024 |
| Kulkarni Sandeep Chidambar | CEO | BUY | $50K–$100K | 4K | $16.99 | Nov 20, 2023 |
| Thiara Parvinder | Director | BUY | $15K–$50K | 1K | $17.31 | Nov 20, 2023 |
| Castelein Caley | Director | BUY | $100K–$500K | 20K | $14.03 | Oct 27, 2023 |
| Kulkarni Sandeep Chidambar | CEO | BUY | $100K–$500K | 10K | $11.49 | Oct 26, 2023 |
| KANTOFF AARON | Director | BUY | $50K–$100K | 8K | $11.86 | Oct 26, 2023 |
| Thiara Parvinder | Director | BUY | $50K–$100K | 7K | $11.08 | Oct 26, 2023 |
Institutional Ownership
13F filings as of Sep 30, 2025 · 23 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| QVT Financial LP | 2.2M | $1M+ | SH |
| TCG Crossover Management, LLC | 1.3M | $1M+ | SH |
| First Trust Capital Management L.P. | 696K | $1M+ | SH |
| AQR Arbitrage LLC | 375K | $1M+ | SH |
| Virtu Financial LLC | 26K | $1M+ | SH |
| SG Americas Securities, LLC | 20K | $500K+ | SH |
| WOLVERINE ASSET MANAGEMENT LLC | 12K | $500K+ | SH |
| Sanctuary Advisors, LLC | 8K | $100K–$500K | SH |
| PenderFund Capital Management Ltd. | 3K | $100K–$500K | SH |
| Creative Planning | 2K | $100K–$500K | SH |
| KLP KAPITALFORVALTNING AS | 2K | $100K–$500K | SH |
| Farther Finance Advisors, LLC | 2K | $100K–$500K | SH |
| NISA INVESTMENT ADVISORS, LLC | 2K | $50K–$100K | SH |
| Caitong International Asset Management Co., Ltd | 1K | $50K–$100K | SH |
| Versant Capital Management, Inc | 600 | $15K–$50K | SH |
| GAMMA Investing LLC | 570 | $15K–$50K | SH |
| AMALGAMATED BANK | 567 | $15K–$50K | SH |
| IFP Advisors, Inc | 0 | $1K–$15K | SH |
| CWM, LLC | 71 | $1K–$15K | SH |
| Parkside Financial Bank & Trust | 48 | $1K–$15K | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Nov 14, 2025
0.0%
0 shares
SC 13G/A · Oct 17, 2025
5.5%
1.4M shares
SC 13G/A · Aug 14, 2025
8.4%
2.2M shares
SC 13G/A · Aug 14, 2025
9.9%
2.6M shares
SC 13G · May 15, 2025
5.7%
1.5M shares
SC 13G/A · Feb 14, 2025
4.2%
1.1M shares
SC 13G/A · Nov 14, 2024
9.9%
2.5M shares
SC 13G/A · Nov 14, 2024
6.0%
1.5M shares
SC 13G/A · Nov 14, 2024
0.0%
0 shares
SC 13G/A · Nov 14, 2024
0.0%
0 shares
SC 13G · Nov 14, 2024
8.7%
2.2M shares
SC 13G · Nov 8, 2024
6.8%
1.8M shares
SC 13G · Oct 22, 2024
6.8%
1.8M shares
SC 13G · Jun 4, 2024
8.0%
2.0M shares
SC 13G/A · Mar 15, 2024
5.0%
1.3M shares
SC 13G/A · Feb 15, 2024
6.6%
1.7M shares
SC 13G · Feb 15, 2024
6.5%
1.3M shares
SC 13G/A · Feb 14, 2024
0.0%
0 shares
SC 13G/A · Feb 14, 2024
0.0%
6 shares
SC 13G/A · Feb 9, 2024
0.0%
0 shares
SC 13G · Nov 6, 2023
5.9%
1.2M shares
Longitude Capital Partners III, LLC 2
SC 13D/A · Oct 30, 2023
1.6%
32.2M shares
Qiming U.S. Healthcare Fund, L.P.
SC 13D/A · Oct 30, 2023
0.9%
183K shares
SC 13G · Oct 27, 2023
8.9%
1.8M shares
SC 13G · Oct 27, 2023
6.3%
1.3M shares