Tourmaline Bio, Inc. (TRML)

Latest Insider Confidence Score

2025Q4

50.0
Bullish

Company insider confidence (by quarter)

2021Q2 2025Q4

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Novartis Ag — 24,030,382 Oct 28, 2025
Ildstad Suzanne Director 6,114,856 May 6, 2021
Requadt Scott Other 899,532 May 6, 2021
Agarwala Sandip Director 406,338 May 11, 2021
Enright Patrick G 10% Owner 406,338 May 11, 2021

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Oct 28, 2025 Oct 28, 2025 SIEGALL CLAY B Director Neutral 52.5 - 0.00% ✗ -
Oct 28, 2025 Oct 28, 2025 Thiara Parvinder Director Neutral 47.5 -83,782 -100.00% ✗ -
Oct 28, 2025 Oct 28, 2025 Srivastava Sapna Director Neutral 47.5 -518 -100.00% ✗ -
Oct 28, 2025 Oct 28, 2025 MCDADE MARK Director Neutral 47.5 -742,209 -100.00% ✗ -
Oct 28, 2025 Oct 28, 2025 KANTOFF AARON Director Neutral 47.5 -88,281 -100.00% ✗ -
Oct 28, 2025 Oct 28, 2025 Castelein Caley Director Neutral 47.5 -947,936 -100.00% ✗ -
Oct 28, 2025 Oct 28, 2025 Johnson Kevin Bruce Chief Regulatory Officer Neutral 47.5 -51,584 -100.00% ✗ -
Oct 28, 2025 Oct 28, 2025 Jones Susan Dana Chief Technology Officer Neutral 47.5 -22,934 -100.00% ✗ -
Oct 28, 2025 Oct 28, 2025 MIDDLEKAUFF W BRADFORD CBO, GC and Secretary Neutral 47.5 -69,201 -100.00% ✗ -
Oct 28, 2025 Oct 28, 2025 Robinson Ryan F. CFO Neutral 47.5 -14,366 -100.00% ✗ -
Oct 28, 2025 Oct 28, 2025 Kulkarni Sandeep Chidambar CEO Neutral 47.5 -762,051 -100.00% ✗ -
Oct 28, 2025 NOVARTIS AG 10% Owner Neutral 52.5 - 0.00% ✗ -
Oct 24, 2025 Oct 24, 2025 KANTOFF AARON Director Neutral 27.5 -5,000 -5.36% ✗ -
Oct 22, 2025 Oct 24, 2025 Robinson Ryan F. CFO Neutral 52.5 - 0.00% ✗ -
Oct 22, 2025 Oct 24, 2025 Kulkarni Sandeep Chidambar CEO Neutral 52.5 - 0.00% ✗ -
Oct 15, 2025 Oct 17, 2025 Castelein Caley Director Neutral 52.5 -522 -0.06% ✗ -
Oct 15, 2025 Oct 17, 2025 Johnson Kevin Bruce Chief Regulatory Officer Neutral 27.5 -6,250 -10.81% ✗ -
Sep 5, 2025 Sep 9, 2025 KANTOFF AARON Director Neutral 52.5 - 0.00% ✗ -
Jun 4, 2025 Jun 6, 2025 KANTOFF AARON Director Neutral 52.5 - 0.00% ✗ -
Jun 4, 2025 Jun 6, 2025 Thiara Parvinder Director Neutral 52.5 - 0.00% ✗ -
Jun 4, 2025 Jun 6, 2025 Srivastava Sapna Director Neutral 52.5 - 0.00% ✗ -
Jun 4, 2025 Jun 6, 2025 SIEGALL CLAY B Director Neutral 52.5 - 0.00% ✗ -
Jun 4, 2025 Jun 6, 2025 Castelein Caley Director Neutral 52.5 - 0.00% ✗ -
Jun 4, 2025 Jun 6, 2025 MCDADE MARK Director Neutral 52.5 - 0.00% ✗ -
Feb 3, 2025 Feb 4, 2025 Kulkarni Sandeep Chidambar CEO Neutral 52.5 - 0.00% ✗ -
Jan 27, 2025 Jan 29, 2025 Robinson Ryan F. CFO Neutral 52.5 - 0.00% ✗ -
Jan 27, 2025 Jan 29, 2025 MIDDLEKAUFF W BRADFORD CBO, GC and Secretary Neutral 52.5 - 0.00% ✗ -
Jan 27, 2025 Jan 29, 2025 Jones Susan Dana Chief Technology Officer Neutral 52.5 - 0.00% ✗ -
Jan 27, 2025 Jan 29, 2025 Johnson Kevin Bruce Chief Regulatory Officer Neutral 52.5 - 0.00% ✗ -
Aug 21, 2024 Aug 22, 2024 Kulkarni Sandeep Chidambar CEO Buy 91.3 +1,779 34.07% ✗ $26.4K
Aug 16, 2024 Aug 20, 2024 Kulkarni Sandeep Chidambar CEO Buy 95.0 +5,221 100.00% ✗ $72K
Jun 25, 2024 Jun 27, 2024 Robinson Ryan F. CFO Neutral 52.5 - 0.00% ✗ -
Jun 5, 2024 Jun 7, 2024 SIEGALL CLAY B Director Neutral 52.5 - 0.00% ✗ -
Jun 5, 2024 Jun 7, 2024 MCDADE MARK Director Neutral 52.5 - 0.00% ✗ -
Jun 5, 2024 Jun 7, 2024 KANTOFF AARON Director Neutral 52.5 - 0.00% ✗ -
Jun 5, 2024 Jun 7, 2024 Srivastava Sapna Director Neutral 52.5 - 0.00% ✗ -
Jun 5, 2024 Jun 7, 2024 Thiara Parvinder Director Neutral 52.5 - 0.00% ✗ -
Jun 5, 2024 Jun 7, 2024 Castelein Caley Director Neutral 52.5 - 0.00% ✗ -
Jan 29, 2024 Jan 31, 2024 MCDADE MARK Director Buy 100.0 +100,000 15.57% ✗ $3.3M
Dec 13, 2023 Dec 15, 2023 SIEGALL CLAY B Director Neutral 52.5 - 0.00% ✗ -
Dec 15, 2023 SIEGALL CLAY B Director Neutral 52.5 - 0.00% ✗ -
Nov 17, 2023 Nov 20, 2023 Kulkarni Sandeep Chidambar CEO Buy 72.5 +4,000 0.55% ✗ $68K
Nov 17, 2023 Nov 20, 2023 Thiara Parvinder Director Buy 78.8 +1,000 1.21% ✗ $17.3K
Oct 25, 2023 Oct 27, 2023 Castelein Caley Director Buy 85.0 +20,000 2.10% ✗ $280.6K
Oct 24, 2023 Oct 26, 2023 Kulkarni Sandeep Chidambar CEO Buy 82.5 +9,650 1.35% ✗ $110.9K
Oct 24, 2023 Oct 26, 2023 KANTOFF AARON Director Buy 95.0 +7,500 19.79% ✗ $89K
Oct 24, 2023 Oct 26, 2023 Thiara Parvinder Director Buy 90.0 +7,000 9.24% ✗ $77.5K
Oct 19, 2023 Oct 23, 2023 Thiara Parvinder Director Neutral 90.0 +75,782 100.00% ✗ -
Oct 19, 2023 Oct 23, 2023 Srivastava Sapna Director Neutral 90.0 +518 100.00% ✗ -
Oct 19, 2023 Oct 23, 2023 Robinson Ryan F. CFO Neutral 52.5 - 0.00% ✗ -
Oct 19, 2023 Oct 23, 2023 MIDDLEKAUFF W BRADFORD CBO, GC and Secretary Neutral 90.0 +69,201 100.00% ✗ -
Oct 19, 2023 Oct 23, 2023 MCDADE MARK Director Neutral 90.0 +348,949 118.99% ✗ -
Oct 19, 2023 Oct 23, 2023 Kulkarni Sandeep Chidambar CEO Neutral 90.0 +716,085 100.00% ✗ -
Oct 19, 2023 Oct 23, 2023 KANTOFF AARON Director Neutral 90.0 +37,891 100.00% ✗ -
Oct 19, 2023 Oct 23, 2023 Jones Susan Dana Chief Technology Officer Neutral 90.0 +22,934 100.00% ✗ -
Oct 19, 2023 Oct 23, 2023 Johnson Kevin Bruce Chief Regulatory Officer Neutral 90.0 +57,834 100.00% ✗ -
Oct 19, 2023 Oct 23, 2023 CHYUNG YUNG H. Chief Medical Officer Neutral 90.0 +56,836 100.00% ✗ -
Oct 19, 2023 Oct 23, 2023 Castelein Caley Director Neutral 90.0 +954,558 100.00% ✗ -
Oct 23, 2023 Thiara Parvinder Director Neutral 52.5 - 0.00% ✗ -
Oct 23, 2023 Robinson Ryan F. CFO Neutral 52.5 - 0.00% ✗ -
Oct 23, 2023 MIDDLEKAUFF W BRADFORD CBO, GC and Secretary Neutral 52.5 - 0.00% ✗ -
Oct 23, 2023 Kulkarni Sandeep Chidambar CEO Neutral 52.5 - 0.00% ✗ -
Oct 23, 2023 KANTOFF AARON Director Neutral 52.5 - 0.00% ✗ -
Oct 23, 2023 Jones Susan Dana Chief Technology Officer Neutral 52.5 - 0.00% ✗ -
Oct 23, 2023 Johnson Kevin Bruce Chief Regulatory Officer Neutral 52.5 - 0.00% ✗ -
Oct 23, 2023 CHYUNG YUNG H. Chief Medical Officer Neutral 52.5 - 0.00% ✗ -
Oct 23, 2023 Chester Cariad Director Neutral 52.5 - 0.00% ✗ -
Oct 23, 2023 Castelein Caley Director Neutral 52.5 - 0.00% ✗ -
Jul 3, 2023 Jul 6, 2023 Fenton Mary Kay CFO Sell 26.3 -12,946 -15.98% ✗ $39.9K
Jul 3, 2023 Jul 6, 2023 Requadt Scott Other Sell 26.3 -11,786 -1.13% ✗ $36.3K
Jun 13, 2023 Jun 14, 2023 Srivastava Sapna Director Neutral 52.5 - 0.00% ✗ -
Jun 13, 2023 Jun 14, 2023 Smith Karen L. Director Neutral 52.5 - 0.00% ✗ -
Jun 13, 2023 Jun 14, 2023 Shah Gaurav Director Neutral 52.5 - 0.00% ✗ -
Jun 13, 2023 Jun 14, 2023 Nader Francois Director Neutral 52.5 - 0.00% ✗ -
Jun 13, 2023 Jun 14, 2023 MCDADE MARK Director Neutral 52.5 - 0.00% ✗ -
Jun 13, 2023 Jun 14, 2023 MACKAY GEOFFREY Director Neutral 52.5 - 0.00% ✗ -
Jun 12, 2023 Jun 14, 2023 Ildstad Suzanne Director Sell 32.5 -44,020 -0.86% ✗ $112.3K
Jun 13, 2023 Jun 14, 2023 Agarwala Sandip Director Neutral 52.5 - 0.00% ✗ -
Jun 7, 2023 Jun 9, 2023 Ildstad Suzanne Director Sell 20.0 -141,062 -2.68% ✗ $342.5K
Jun 5, 2023 Jun 7, 2023 Ildstad Suzanne Director Sell 32.5 -33,390 -0.63% ✗ $84.4K
Jun 1, 2023 Jun 5, 2023 Ildstad Suzanne Director Sell 32.5 -31,531 -0.59% ✗ $79.8K
Apr 21, 2023 Apr 25, 2023 Ildstad Suzanne Director Sell 43.8 -15,004 -0.28% ✗ $35.2K
Apr 19, 2023 Apr 21, 2023 Ildstad Suzanne Director Sell 22.5 -68,743 -1.27% ✗ $156.4K
Apr 17, 2023 Apr 19, 2023 Ildstad Suzanne Director Sell 20.0 -148,982 -2.68% ✗ $319.3K
Mar 17, 2023 Apr 7, 2023 Ildstad Suzanne Director Sell 53.8 -10,436 -0.19% ✓ $21.5K
Mar 3, 2023 Apr 7, 2023 Ildstad Suzanne Director Sell 53.8 -6,806 -0.12% ✓ $14K
Mar 1, 2023 Apr 7, 2023 Ildstad Suzanne Director Sell 58.8 -29 0.00% ✓ $59.5
Feb 21, 2023 Apr 7, 2023 Ildstad Suzanne Director Sell 56.3 -3,500 -0.06% ✓ $7.2K
Feb 16, 2023 Apr 7, 2023 Ildstad Suzanne Director Sell 53.8 -6,551 -0.12% ✓ $13.4K
Mar 17, 2023 Mar 20, 2023 Ildstad Suzanne Director Sell 51.3 -10,436 -0.19% ✗ $21.5K
Mar 3, 2023 Mar 7, 2023 Ildstad Suzanne Director Sell 51.3 -6,806 -0.12% ✗ $14K
Mar 1, 2023 Mar 2, 2023 Ildstad Suzanne Director Sell 52.5 -29 0.00% ✗ $59.5
Feb 21, 2023 Feb 23, 2023 Ildstad Suzanne Director Sell 52.5 -3,500 -0.06% ✗ $7.2K
Feb 16, 2023 Feb 21, 2023 Ildstad Suzanne Director Sell 51.3 -6,551 -0.12% ✗ $13.4K
Feb 1, 2023 Feb 3, 2023 Zdanowski Michael Chief Technology Officer Neutral 52.5 - 0.00% ✗ -
Dec 30, 2022 Feb 3, 2023 Requadt Scott CEO Neutral 47.5 +4 0.00% ✗ -
Feb 1, 2023 Feb 3, 2023 Krieger Nancy Chief Medical Officer Neutral 52.5 - 0.00% ✗ -
Feb 1, 2023 Feb 3, 2023 Fenton Mary Kay CFO Neutral 52.5 - 0.00% ✗ -
Sep 10, 2022 Sep 13, 2022 Zdanowski Michael Chief Technology Officer Neutral 90.0 +120,000 8163.27% ✗ -
Sep 10, 2022 Sep 13, 2022 Krieger Nancy Chief Medical Officer Neutral 90.0 +80,000 31.97% ✗ -