Tourmaline Bio, Inc. ($TRML) Insider Transactions

Last updated: 2026-03-14 11:09 UTC | Total transactions: 84

In the last 12 months, insiders at Tourmaline Bio, Inc. ($TRML) filed 84 transactions with the SEC: 3 open-market purchases totaling $3,348,416 and 0 sales totaling $0. Net insider sentiment: net buying.

Tourmaline Bio, Inc. operates in the Biological products, (no disgnostic substances) industry (Life sciences sector).

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View all SEC Filings for Tourmaline Bio, Inc. (TRML).

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Recent Insider Transactions

Transaction Date Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
Oct. 28, 2025 Kulkarni Sandeep Chidambar CEO D Employee Stock Option (Right to Buy) 226000 $0.00 0.0000 25,755,000 100.00% 0.88%
Oct. 28, 2025 KANTOFF AARON Not found D Employee Stock Option (Right to Buy) 10000 $0.00 0.0000 25,755,000 100.00% 0.04%
Oct. 28, 2025 KANTOFF AARON Not found D Employee Stock Option (Right to Buy) 16800 $0.00 0.0000 25,755,000 100.00% 0.07%
Oct. 28, 2025 Castelein Caley Not found U Common Stock 515997 $0.00 0.0000 25,755,000 100.00% 2.00%
Oct. 28, 2025 Castelein Caley Not found U Common Stock 431939 $0.00 0.0000 25,755,000 100.00% 1.68%
Oct. 28, 2025 Castelein Caley Not found D Employee Stock Option (Right to Buy) 10000 $0.00 0.0000 25,755,000 100.00% 0.04%
Oct. 28, 2025 Castelein Caley Not found D Employee Stock Option (Right to Buy) 10000 $0.00 0.0000 25,755,000 100.00% 0.04%
Oct. 28, 2025 Castelein Caley Not found D Employee Stock Option (Right to Buy) 16800 $0.00 0.0000 25,755,000 100.00% 0.07%
Oct. 28, 2025 Johnson Kevin Bruce Chief Regulatory Officer U Common Stock 40538 $0.00 11,046.0000 25,755,000 78.59% 0.16%
Oct. 28, 2025 Johnson Kevin Bruce Chief Regulatory Officer D Common Stock 11046 $0.00 0.0000 25,755,000 100.00% 0.04%
Oct. 28, 2025 Johnson Kevin Bruce Chief Regulatory Officer D Employee Stock Option (Right to Buy) 96146 $0.00 0.0000 25,755,000 100.00% 0.37%
Oct. 28, 2025 Johnson Kevin Bruce Chief Regulatory Officer D Employee Stock Option (Right to Buy) 46774 $0.00 0.0000 25,755,000 100.00% 0.18%
Oct. 28, 2025 Johnson Kevin Bruce Chief Regulatory Officer D Employee Stock Option (Right to Buy) 58000 $0.00 0.0000 25,755,000 100.00% 0.23%
Oct. 28, 2025 Jones Susan Dana Chief Technology Officer U Common Stock 19782 $0.00 3,152.0000 25,755,000 86.26% 0.08%
Oct. 28, 2025 Jones Susan Dana Chief Technology Officer D Common Stock 3152 $0.00 0.0000 25,755,000 100.00% 0.01%
Oct. 28, 2025 Jones Susan Dana Chief Technology Officer D Employee Stock Option (Right to Buy) 76219 $0.00 0.0000 25,755,000 100.00% 0.30%
Oct. 28, 2025 Jones Susan Dana Chief Technology Officer D Employee Stock Option (Right to Buy) 46774 $0.00 0.0000 25,755,000 100.00% 0.18%
Oct. 28, 2025 Jones Susan Dana Chief Technology Officer D Employee Stock Option (Right to Buy) 58000 $0.00 0.0000 25,755,000 100.00% 0.23%
Oct. 28, 2025 MIDDLEKAUFF W BRADFORD CBO, GC and Secretary U Common Stock 60988 $0.00 8,213.0000 25,755,000 88.13% 0.24%
Oct. 28, 2025 MIDDLEKAUFF W BRADFORD CBO, GC and Secretary D Common Stock 8213 $0.00 0.0000 25,755,000 100.00% 0.03%
Oct. 28, 2025 MIDDLEKAUFF W BRADFORD CBO, GC and Secretary D Employee Stock Option (Right to Buy) 124991 $0.00 0.0000 25,755,000 100.00% 0.49%
Oct. 28, 2025 MIDDLEKAUFF W BRADFORD CBO, GC and Secretary D Employee Stock Option (Right to Buy) 46774 $0.00 0.0000 25,755,000 100.00% 0.18%
Oct. 28, 2025 MIDDLEKAUFF W BRADFORD CBO, GC and Secretary D Employee Stock Option (Right to Buy) 58000 $0.00 0.0000 25,755,000 100.00% 0.23%
Oct. 28, 2025 Robinson Ryan F. CFO U Common Stock 14366 $0.00 0.0000 25,755,000 100.00% 0.06%
Oct. 28, 2025 Robinson Ryan F. CFO D Employee Stock Option (Right to Buy) 25845 $0.00 0.0000 25,755,000 100.00% 0.10%
Oct. 28, 2025 Robinson Ryan F. CFO D Employee Stock Option (Right to Buy) 16000 $0.00 0.0000 25,755,000 100.00% 0.06%
Oct. 28, 2025 Robinson Ryan F. CFO D Employee Stock Option (Right to Buy) 76400 $0.00 0.0000 25,755,000 100.00% 0.30%
Oct. 28, 2025 Robinson Ryan F. CFO D Employee Stock Option (Right to Buy) 58000 $0.00 0.0000 25,755,000 100.00% 0.23%
Oct. 28, 2025 Kulkarni Sandeep Chidambar CEO U Common Stock 724664 $0.00 30,387.0000 25,755,000 95.98% 2.81%
Oct. 28, 2025 Kulkarni Sandeep Chidambar CEO D Common Stock 30387 $0.00 0.0000 25,755,000 100.00% 0.12%
Oct. 28, 2025 Kulkarni Sandeep Chidambar CEO U Common Stock 7000 $0.00 0.0000 25,755,000 100.00% 0.03%
Oct. 28, 2025 Kulkarni Sandeep Chidambar CEO D Employee Stock Option (Right to Buy) 503478 $0.00 0.0000 25,755,000 100.00% 1.95%
Oct. 28, 2025 Kulkarni Sandeep Chidambar CEO D Employee Stock Option (Right to Buy) 254207 $0.00 0.0000 25,755,000 100.00% 0.99%
Oct. 28, 2025 SIEGALL CLAY B Not found D Employee Stock Option (Right to Buy) 20000 $0.00 0.0000 25,755,000 100.00% 0.08%
Oct. 28, 2025 SIEGALL CLAY B Not found D Employee Stock Option (Right to Buy) 15000 $0.00 0.0000 25,755,000 100.00% 0.06%
Oct. 28, 2025 SIEGALL CLAY B Not found D Employee Stock Option (Right to Buy) 16800 $0.00 0.0000 25,755,000 100.00% 0.07%
Oct. 28, 2025 Thiara Parvinder Not found U Common Stock 83782 $0.00 0.0000 25,755,000 100.00% 0.33%
Oct. 28, 2025 Thiara Parvinder Not found D Employee Stock Option (Right to Buy) 10000 $0.00 0.0000 25,755,000 100.00% 0.04%
Oct. 28, 2025 Thiara Parvinder Not found D Employee Stock Option (Right to Buy) 10000 $0.00 0.0000 25,755,000 100.00% 0.04%
Oct. 28, 2025 Thiara Parvinder Not found D Employee Stock Option (Right to Buy) 16800 $0.00 0.0000 25,755,000 100.00% 0.07%
Oct. 28, 2025 Srivastava Sapna Not found U Common Stock 518 $0.00 0.0000 25,755,000 100.00% 0.00%
Oct. 28, 2025 Srivastava Sapna Not found D Employee Stock Option (Right to Buy) 20000 $0.00 0.0000 25,755,000 100.00% 0.08%
Oct. 28, 2025 Srivastava Sapna Not found D Employee Stock Option (Right to Buy) 10000 $0.00 0.0000 25,755,000 100.00% 0.04%
Oct. 28, 2025 Srivastava Sapna Not found D Employee Stock Option (Right to Buy) 16800 $0.00 0.0000 25,755,000 100.00% 0.07%
Oct. 28, 2025 MCDADE MARK Not found U Common Stock 518 $0.00 0.0000 25,755,000 100.00% 0.00%
Oct. 28, 2025 MCDADE MARK Not found U Common Stock 183177 $0.00 0.0000 25,755,000 100.00% 0.71%
Oct. 28, 2025 MCDADE MARK Not found U Common Stock 110083 $0.00 0.0000 25,755,000 100.00% 0.43%
Oct. 28, 2025 MCDADE MARK Not found U Common Stock 448431 $0.00 0.0000 25,755,000 100.00% 1.74%
Oct. 28, 2025 MCDADE MARK Not found D Employee Stock Option (Right to Buy) 20000 $0.00 0.0000 25,755,000 100.00% 0.08%
Oct. 28, 2025 MCDADE MARK Not found D Employee Stock Option (Right to Buy) 10000 $0.00 0.0000 25,755,000 100.00% 0.04%
Oct. 28, 2025 MCDADE MARK Not found D Employee Stock Option (Right to Buy) 16800 $0.00 0.0000 25,755,000 100.00% 0.07%
Oct. 28, 2025 KANTOFF AARON Not found U Common Stock 88281 $0.00 0.0000 25,755,000 100.00% 0.34%
Oct. 22, 2025 Kulkarni Sandeep Chidambar CEO M Employee Stock Option (Right to Buy) 25316 $0.00 503,478.0000 25,755,000 4.79% 0.10%
Oct. 24, 2025 KANTOFF AARON Not found G Common Stock 5000 $0.00 88,281.0000 25,755,000 5.36% 0.02%
Oct. 22, 2025 Robinson Ryan F. CFO M Common Stock 14366 $13.92 14,366.0000 25,755,000 9999.99% 0.06%
Oct. 22, 2025 Robinson Ryan F. CFO M Employee Stock Option (Right to Buy) 14366 $0.00 25,845.0000 25,755,000 35.73% 0.06%
Oct. 22, 2025 Kulkarni Sandeep Chidambar CEO M Common Stock 25316 $7.90 762,051.0000 25,755,000 3.44% 0.10%
Oct. 15, 2025 Johnson Kevin Bruce Chief Regulatory Officer G Common Stock 6250 $0.00 51,584.0000 25,755,000 10.81% 0.02%
Oct. 15, 2025 Castelein Caley Not found G Common Stock 522 $0.00 947,936.0000 25,755,000 0.06% 0.00%
Sept. 5, 2025 KANTOFF AARON Not found M Common Stock 10000 $9.46 93,281.0000 25,755,000 12.01% 0.04%
Sept. 5, 2025 KANTOFF AARON Not found M Stock Option (Right to Buy) 37890 $0.00 0.0000 25,755,000 100.00% 0.15%
Sept. 5, 2025 KANTOFF AARON Not found M Stock Option (Right to Buy) 10000 $0.00 0.0000 25,755,000 100.00% 0.04%
Sept. 5, 2025 KANTOFF AARON Not found M Common Stock 37890 $0.13 83,281.0000 25,755,000 83.47% 0.15%
June 4, 2025 Thiara Parvinder Director A Stock Option (Right to Buy) 16800 $0.00 16,800.0000 25,348,000 9999.99% 0.07%
June 4, 2025 Srivastava Sapna Director A Stock Option (Right to Buy) 16800 $0.00 16,800.0000 25,348,000 9999.99% 0.07%
June 4, 2025 SIEGALL CLAY B Director A Stock Option (Right to Buy) 16800 $0.00 16,800.0000 25,348,000 9999.99% 0.07%
June 4, 2025 Castelein Caley Director A Stock Option (Right to Buy) 16800 $0.00 16,800.0000 25,348,000 9999.99% 0.07%
June 4, 2025 MCDADE MARK Director A Stock Option (Right to Buy) 16800 $0.00 16,800.0000 25,348,000 9999.99% 0.07%
June 4, 2025 KANTOFF AARON Director A Stock Option (Right to Buy) 16800 $0.00 16,800.0000 25,348,000 9999.99% 0.07%
Feb. 3, 2025 Kulkarni Sandeep Chidambar CEO A Employee Stock Option (Right to Buy) 226000 $0.00 226,000.0000 25,348,000 9999.99% 0.89%
Jan. 27, 2025 Johnson Kevin Bruce Chief Regulatory Officer A Employee Stock Option (Right to Buy) 58000 $0.00 58,000.0000 25,348,000 9999.99% 0.23%
Jan. 27, 2025 Jones Susan Dana Chief Technology Officer A Employee Stock Option (Right to Buy) 58000 $0.00 58,000.0000 25,348,000 9999.99% 0.23%
Jan. 27, 2025 MIDDLEKAUFF W BRADFORD CBO, GC and Secretary A Employee Stock Option (Right to Buy) 58000 $0.00 58,000.0000 25,348,000 9999.99% 0.23%
Jan. 27, 2025 Robinson Ryan F. Chief Financial Officer A Employee Stock Option (Right to Buy) 58000 $0.00 58,000.0000 25,348,000 9999.99% 0.23%
Aug. 21, 2024 Kulkarni Sandeep Chidambar CEO P Common Stock 1779 $14.85 7,000.0000 25,724,000 34.07% 0.01%
Aug. 16, 2024 Kulkarni Sandeep Chidambar CEO P Common Stock 5221 $13.79 5,221.0000 25,724,000 9999.99% 0.02%
June 25, 2024 Robinson Ryan F. Chief Financial Officer A Employee Stock Option (Right to Buy) 76400 $0.00 76,400.0000 4,747,000 9999.99% 1.61%
June 5, 2024 Srivastava Sapna Director A Stock Option (Right to Buy) 10000 $0.00 10,000.0000 4,747,000 9999.99% 0.21%
June 5, 2024 Castelein Caley Director A Stock Option (Right to Buy) 10000 $0.00 10,000.0000 4,747,000 9999.99% 0.21%
June 5, 2024 KANTOFF AARON Director A Stock Option (Right to Buy) 10000 $0.00 10,000.0000 4,747,000 9999.99% 0.21%
June 5, 2024 MCDADE MARK Director A Stock Option (Right to Buy) 10000 $0.00 10,000.0000 4,747,000 9999.99% 0.21%
June 5, 2024 SIEGALL CLAY B Director A Stock Option (Right to Buy) 15000 $0.00 15,000.0000 4,747,000 9999.99% 0.32%
June 5, 2024 Thiara Parvinder Director A Stock Option (Right to Buy) 10000 $0.00 10,000.0000 4,747,000 9999.99% 0.21%
Jan. 29, 2024 MCDADE MARK Not found P Common Stock 100000 $32.50 742,209.0000 4,747,000 15.57% 2.11%