Phathom Pharmaceuticals, Inc. (PHAT)

Latest Insider Confidence Score

2026Q1

51.6
Bullish

Company insider confidence (by quarter)

2019Q4 2026Q1

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Medicxi Ventures Management (Jersey) Ltd — 7,464,572 Jan 26, 2024
Medicxi Growth I LP — 7,464,572 Jan 26, 2024
Medicxi Growth Co-Invest I LP — 7,464,572 Jan 26, 2024
Medicxi Growth I GP Ltd — 7,464,572 Jan 26, 2024
Medicxi IV GP Ltd — 7,464,572 Jan 26, 2024

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Feb 27, 2026 Mar 3, 2026 Breedlove Robert Charles Principal Accounting Officer Sell 91.3 +14,412 26.68% ✗ $17.3K
Feb 10, 2026 Feb 12, 2026 Cook Anne Marie Chief Legal Off. & Corp. Sec. Sell 78.8 +1,926 2.22% ✗ $19.7K
Feb 10, 2026 Feb 12, 2026 Basta Steven L CEO Sell 82.5 +6,085 1.66% ✗ $80.5K
Jan 23, 2026 Jan 27, 2026 Parikh Asit Director Neutral 52.5 - 0.00% ✗ -
Jan 21, 2026 Jan 23, 2026 Breedlove Robert Charles Principal Accounting Officer Sell 46.3 -776 -1.42% ✗ $10.6K
Jan 13, 2026 Jan 15, 2026 Parikh Asit Director Neutral 52.5 - 0.00% ✗ -
Jan 2, 2026 Jan 2, 2026 Basta Steven L CEO Neutral 90.0 +251,034 220.62% ✗ -
Jan 2, 2026 Jan 2, 2026 Cook Anne Marie Chief Legal Off. & Corp. Sec. Neutral 90.0 +75,345 779.40% ✗ -
Jan 2, 2026 Jan 2, 2026 Narula Sanjeev CFO Neutral 90.0 +82,715 57.44% ✗ -
Dec 19, 2025 Dec 23, 2025 Parikh Asit Director Neutral 52.5 - 0.00% ✗ -
Dec 18, 2025 Dec 19, 2025 Breedlove Robert Charles Principal Accounting Officer Sell 52.5 -230 -0.42% ✗ $3.7K
Dec 17, 2025 Dec 19, 2025 Cook Anne Marie Chief Legal Off. & Corp. Sec. Sell 95.0 +9,667 100.00% ✗ $118.3K
Dec 17, 2025 Dec 19, 2025 Basta Steven L CEO Sell 97.5 +30,536 36.68% ✗ $483.9K
Nov 28, 2025 Dec 2, 2025 Basta Steven L CEO Sell 40.0 -48,375 -36.75% ✗ $755.6K
Nov 3, 2025 Nov 5, 2025 Breedlove Robert Charles Principal Accounting Officer Sell 50.0 -524 -0.95% ✗ $7.1K
Oct 6, 2025 Oct 8, 2025 Narula Sanjeev CFO Neutral 90.0 +144,000 100.00% ✗ -
Oct 6, 2025 Oct 7, 2025 Narula Sanjeev CFO Neutral 52.5 - 0.00% ✗ -
Oct 7, 2025 Narula Sanjeev CFO Neutral 52.5 - 0.00% ✗ -
Sep 25, 2025 Sep 26, 2025 Basta Steven L CEO Sell 40.0 -48,375 -53.75% ✗ $564.1K
Sep 5, 2025 Sep 9, 2025 Breedlove Robert Charles Principal Accounting Officer Sell 50.0 -461 -0.83% ✗ $5.6K
Jul 16, 2025 Jul 18, 2025 Breedlove Robert Charles Principal Accounting Officer Sell 46.3 -1,692 -3.07% ✗ $14.2K
Jun 23, 2025 Jun 24, 2025 Cook Anne Marie Chief Legal Off. & Corp. Sec. Neutral 52.5 - 0.00% ✗ -
Jun 24, 2025 Cook Anne Marie Chief Legal Off. & Corp. Sec. Neutral 52.5 - 0.00% ✗ -
Jun 3, 2025 Jun 5, 2025 KARBE FRANK Director Neutral 90.0 +10,500 18.42% ✗ -
Jun 3, 2025 Jun 5, 2025 COLA MICHAEL F Director Neutral 90.0 +10,500 35.84% ✗ -
Jun 3, 2025 Jun 5, 2025 Topper James N Director Neutral 55.0 +10,500 0.18% ✗ -
Jun 3, 2025 Jun 5, 2025 FIELDS HEIDI Director Neutral 90.0 +10,500 53.85% ✗ -
Jun 3, 2025 Jun 5, 2025 Stenhouse Mark Director Neutral 90.0 +10,500 53.85% ✗ -
Jun 3, 2025 Jun 5, 2025 Parikh Asit Director Neutral 90.0 +10,500 10.19% ✗ -
May 21, 2025 May 23, 2025 Topper James N Director Buy 56.3 +3,780 0.06% ✗ $14.6K
May 19, 2025 May 21, 2025 Breedlove Robert Charles Principal Accounting Officer Neutral 52.5 - 0.00% ✗ -
May 13, 2025 May 15, 2025 Topper James N Director Buy 56.3 +7,420 0.13% ✗ $24.5K
May 9, 2025 May 13, 2025 Topper James N Director Buy 72.5 +48,203 0.82% ✗ $152.9K
May 6, 2025 May 8, 2025 Parikh Asit Director Buy 91.3 +10,000 11.70% ✗ $25K
May 6, 2025 Breedlove Robert Charles Principal Accounting Officer Neutral 52.5 - 0.00% ✗ -
Apr 16, 2025 Apr 16, 2025 Schroeder Theodore R Director Neutral 90.0 +21,000 100.00% ✗ -
Apr 16, 2025 Schroeder Theodore R Director Neutral 52.5 - 0.00% ✗ -
Apr 7, 2025 Apr 8, 2025 Henderson Molly CFO Sell 46.3 -3,678 -3.85% ✗ $16.7K
Apr 3, 2025 Apr 3, 2025 Basta Steven L CEO Neutral 52.5 - 0.00% ✗ -
Apr 3, 2025 Basta Steven L CEO Neutral 52.5 - 0.00% ✗ -
Sep 10, 2024 Mar 21, 2025 Parikh Asit Director Neutral 52.5 - 0.00% ✗ -
Mar 13, 2025 Mar 17, 2025 Parikh Asit Director Buy 91.3 +10,000 13.25% ✗ $44.2K
Feb 27, 2025 Mar 3, 2025 Curran Terrie CEO Neutral 52.5 - 0.00% ✗ -
Feb 27, 2025 Mar 3, 2025 Henderson Molly CFO Neutral 90.0 +72,000 75.43% ✗ -
Feb 27, 2025 Mar 3, 2025 Nabulsi Azmi COO Neutral 85.0 +79,200 7.74% ✗ -
Jan 21, 2025 Jan 23, 2025 Henderson Molly CFO Sell 46.3 -6,583 -6.45% ✗ $43.4K
Jan 21, 2025 Jan 23, 2025 Nabulsi Azmi COO Sell 45.0 -7,886 -0.77% ✗ $52K
Jan 21, 2025 Jan 23, 2025 Curran Terrie CEO Sell 42.5 -19,109 -4.98% ✗ $125.9K
Dec 19, 2024 Dec 20, 2024 Nabulsi Azmi COO Sell 52.5 -1,118 -0.11% ✗ $8.9K
Dec 19, 2024 Dec 20, 2024 Henderson Molly CFO Sell 46.3 -1,291 -1.27% ✗ $10.3K
Dec 13, 2024 Dec 16, 2024 KARBE FRANK Director Buy 95.0 +12,500 28.09% ✗ $99.1K
Dec 13, 2024 Dec 16, 2024 Parikh Asit Director Buy 95.0 +10,000 15.27% ✗ $81.2K
Jul 15, 2024 Jul 17, 2024 Nabulsi Azmi COO Sell 42.5 -10,901 -1.05% ✗ $127.8K
Jul 15, 2024 Jul 17, 2024 Henderson Molly CFO Sell 42.5 -4,325 -4.09% ✗ $50.7K
Jul 15, 2024 Jul 17, 2024 Curran Terrie CEO Sell 40.0 -33,848 -8.15% ✗ $396.7K
May 31, 2024 May 31, 2024 Henderson Molly CFO Neutral 85.0 +7,500 7.72% ✗ -
May 31, 2024 May 31, 2024 Nabulsi Azmi COO Neutral 67.5 +7,500 0.73% ✗ -
May 29, 2024 May 31, 2024 KARBE FRANK Director Neutral 90.0 +25,000 128.21% ✗ -
May 23, 2024 May 24, 2024 Topper James N Director Neutral 55.0 +10,500 0.18% ✗ -
May 23, 2024 May 24, 2024 Parikh Asit Director Neutral 90.0 +10,500 19.09% ✗ -
May 23, 2024 May 24, 2024 COLA MICHAEL F Director Neutral 90.0 +10,500 55.86% ✗ -
May 23, 2024 May 24, 2024 FIELDS HEIDI Director Neutral 90.0 +10,500 116.67% ✗ -
May 23, 2024 May 24, 2024 KARBE FRANK Director Neutral 90.0 +10,500 116.67% ✗ -
May 23, 2024 May 24, 2024 Stenhouse Mark Director Neutral 90.0 +10,500 116.67% ✗ -
May 23, 2024 May 24, 2024 Socks David A Director Neutral 67.5 +10,500 0.86% ✗ -
Apr 8, 2024 Apr 10, 2024 Henderson Molly CFO Sell 46.3 -3,435 -3.41% ✗ $38.1K
Mar 22, 2024 Mar 26, 2024 Curran Terrie CEO Sell 22.5 -16,851 -3.91% ✗ $153.5K
Jan 26, 2024 Medicxi Ventures Management (Jersey) Ltd 10% Owner Neutral 52.5 - 0.00% ✗ -
Jan 19, 2024 Jan 22, 2024 Henderson Molly CFO Sell 46.3 -6,307 -5.90% ✗ $48.9K
Jan 18, 2024 Jan 22, 2024 Nabulsi Azmi COO Neutral 52.5 - 0.00% ✗ -
Jan 18, 2024 Jan 22, 2024 Curran Terrie CEO Neutral 52.5 - 0.00% ✗ -
Nov 20, 2023 Nov 21, 2023 Henderson Molly CFO Sell 46.3 -2,127 -2.00% ✗ $15.4K
Nov 6, 2023 Nov 8, 2023 Parikh Asit Director Buy 95.0 +7,500 15.79% ✗ $58.6K
Nov 1, 2023 Nov 3, 2023 Henderson Molly CFO Sell 95.0 +10,008 10.39% ✗ $110.9K
Nov 1, 2023 Nov 3, 2023 Nabulsi Azmi COO Neutral 82.5 +32,500 3.25% ✗ -
Nov 1, 2023 Nov 3, 2023 Curran Terrie CEO Neutral 85.0 +37,500 9.54% ✗ -
Jul 14, 2023 Jul 21, 2023 Henderson Molly CFO Neutral 90.0 +25,000 35.62% ✗ -
Jul 14, 2023 Jul 17, 2023 Henderson Molly CFO Neutral 90.0 +25,000 35.06% ✗ -
Jul 14, 2023 Jul 17, 2023 Curran Terrie CEO Neutral 90.0 +200,000 103.49% ✗ -
Jul 14, 2023 Jul 17, 2023 Nabulsi Azmi COO Neutral 90.0 +110,000 12.38% ✗ -
Jun 2, 2023 Jun 5, 2023 Parikh Asit Director Neutral 90.0 +15,000 46.15% ✗ -
Jun 2, 2023 Jun 5, 2023 Henderson Molly CFO Sell 45.0 -1,960 -2.77% ✓ $22.4K
May 25, 2023 May 30, 2023 Topper James N Director Neutral 55.0 +9,000 0.15% ✗ -
May 25, 2023 May 30, 2023 Stenhouse Mark Director Neutral 90.0 +9,000 100.00% ✗ -
May 25, 2023 May 30, 2023 Socks David A Director Neutral 67.5 +9,000 0.74% ✗ -
May 25, 2023 May 30, 2023 Parikh Asit Director Neutral 90.0 +9,000 38.30% ✗ -
May 25, 2023 May 30, 2023 FIELDS HEIDI Director Neutral 90.0 +9,000 100.00% ✗ -
May 25, 2023 May 30, 2023 KARBE FRANK Director Neutral 90.0 +9,000 100.00% ✗ -
May 25, 2023 May 30, 2023 COLA MICHAEL F Director Neutral 90.0 +9,000 91.86% ✗ -
May 22, 2023 May 23, 2023 Henderson Molly CFO Sell 45.0 -2,110 -2.89% ✓ $27.2K
Apr 10, 2023 Apr 11, 2023 Parikh Asit Director Buy 82.5 +1,000 4.44% ✗ $7.6K
Apr 11, 2023 Apr 11, 2023 Nabulsi Azmi COO Buy 82.5 +10,000 1.14% ✗ $82.6K
Apr 6, 2023 Apr 7, 2023 Curran Terrie CEO Buy 90.0 +12,919 7.27% ✗ $101K
Apr 6, 2023 Apr 7, 2023 Henderson Molly CFO Sell 41.3 -3,439 -4.50% ✓ $25K
Mar 1, 2023 Mar 3, 2023 Henderson Molly CFO Sell 45.0 -2,032 -2.59% ✓ $17.3K
Mar 1, 2023 Mar 3, 2023 Curran Terrie CEO Sell 51.3 -1,436 -0.80% ✓ $12.3K
Feb 13, 2023 Feb 14, 2023 Parikh Asit Director Buy 91.3 +5,000 28.57% ✗ $38.7K
Jan 19, 2023 Jan 20, 2023 Curran Terrie CEO Sell 91.3 +91,679 104.94% ✗ $47.7K
Jan 19, 2023 Jan 20, 2023 Nabulsi Azmi COO Neutral 85.0 +45,000 5.40% ✗ -
Jan 19, 2023 Jan 20, 2023 Henderson Molly CFO Neutral 90.0 +33,000 72.71% ✗ -