Phathom Pharmaceuticals, Inc. ($PHAT) Insider Transactions

Last updated: 2026-03-16 13:04 UTC | Total transactions: 157

In the last 12 months, insiders at Phathom Pharmaceuticals, Inc. ($PHAT) filed 157 transactions with the SEC: 19 open-market purchases totaling $764,920 and 24 sales totaling $1,377,853. Net insider sentiment: net selling.

Phathom Pharmaceuticals, Inc. operates in the Pharmaceutical preparations industry (Life sciences sector).

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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
March 10, 2026 Parikh Asit Not found G Common Stock 40000 $0.00 131,000.0000 73,396,435 43.96% 0.05%
March 10, 2026 Parikh Asit Not found G Common Stock 40000 $0.00 131,000.0000 73,396,435 23.39% 0.05%
Feb. 27, 2026 Breedlove Robert Charles Principal Accounting Officer A Common Stock 13000 $0.00 67,013.4000 73,396,435 24.07% 0.02%
Feb. 27, 2026 Breedlove Robert Charles Principal Accounting Officer F Common Stock 414 $12.56 68,425.4000 73,396,435 0.60% 0.00%
Feb. 27, 2026 Breedlove Robert Charles Principal Accounting Officer F Common Stock 964 $12.56 68,839.4000 73,396,435 1.38% 0.00%
Feb. 27, 2026 Breedlove Robert Charles Principal Accounting Officer A Common Stock 2790 $0.00 69,803.4000 73,396,435 4.16% 0.00%
Feb. 10, 2026 Cook Anne Marie Chief Legal Off. & Corp. Sec. F Common Stock 1535 $12.82 88,660.0000 73,396,435 1.70% 0.00%
Feb. 10, 2026 Basta Steven L President and CEO F Common Stock 6277 $12.82 373,315.0000 73,396,435 1.65% 0.01%
Feb. 10, 2026 Basta Steven L President and CEO A Common Stock 12362 $0.00 379,592.0000 73,396,435 3.37% 0.02%
Feb. 10, 2026 Cook Anne Marie Chief Legal Off. & Corp. Sec. A Common Stock 3461 $0.00 90,195.0000 73,396,435 3.99% 0.00%
Jan. 23, 2026 Parikh Asit Not found G Common Stock 80500 $0.00 131,000.0000 73,396,435 38.06% 0.11%
Jan. 23, 2026 Parikh Asit Not found G Common Stock 80500 $0.00 131,000.0000 73,396,435 159.41% 0.11%
Jan. 21, 2026 Breedlove Robert Charles Principal Accounting Officer F Common Stock 776 $13.61 54,013.4000 73,396,435 1.42% 0.00%
Jan. 13, 2026 Parikh Asit Not found M Common Stock (Right to Buy) 8750 $0.00 0.0000 73,396,435 100.00% 0.01%
Jan. 13, 2026 Parikh Asit Not found M Common Stock 8750 $10.30 131,000.0000 73,396,435 7.16% 0.01%
Jan. 2, 2026 Basta Steven L President and CEO A Stock Option (Right to Buy) 226156 $0.00 221,156.0000 73,396,435 0.00% 0.31%
Jan. 2, 2026 Basta Steven L President and CEO A Common Stock 251034 $0.00 364,820.0000 73,396,435 220.62% 0.34%
Jan. 2, 2026 Cook Anne Marie Chief Legal Off. & Corp. Sec. A Common Stock 75345 $0.00 85,012.0000 73,396,435 779.40% 0.10%
Jan. 2, 2026 Cook Anne Marie Chief Legal Off. & Corp. Sec. A Stock Option (Right to Buy) 67878 $0.00 67,878.0000 73,396,435 9999.99% 0.09%
Jan. 2, 2026 Narula Sanjeev Chief Financial & Bus. Officer A Common Stock 82715 $0.00 226,715.0000 73,396,435 57.44% 0.11%
Jan. 2, 2026 Narula Sanjeev Chief Financial & Bus. Officer A Stock Option (Right to Buy) 42848 $0.00 42,848.0000 73,396,435 9999.99% 0.06%
Dec. 19, 2025 Parikh Asit Not found M Common Stock (Right to Buy) 8750 $0.00 8,750.0000 73,396,435 50.00% 0.01%
Dec. 19, 2025 Parikh Asit Not found M Common Stock 8750 $10.30 122,250.0000 73,396,435 7.71% 0.01%
Dec. 17, 2025 Basta Steven L President and CEO F Common Stock 31502 $15.36 113,786.0000 73,396,435 21.68% 0.04%
Dec. 17, 2025 Basta Steven L President and CEO A Common Stock 62038 $0.00 145,288.0000 73,396,435 74.52% 0.08%
Dec. 17, 2025 Cook Anne Marie Chief Legal Off. & Corp. Sec. F Common Stock 7703 $15.36 9,667.0000 73,396,435 44.35% 0.01%
Dec. 17, 2025 Cook Anne Marie Chief Legal Off. & Corp. Sec. A Common Stock 17370 $0.00 17,370.0000 73,396,435 9999.99% 0.02%
Dec. 18, 2025 Breedlove Robert Charles Principal Accounting Officer F Common Stock 230 $16.28 54,789.4000 73,396,435 0.42% 0.00%
Nov. 28, 2025 Basta Steven L President and CEO M Common Stock 90000 $0.00 131,625.0000 73,396,435 216.22% 0.12%
Nov. 28, 2025 Basta Steven L President and CEO F Common Stock 48375 $15.62 83,250.0000 73,396,435 36.75% 0.07%
Nov. 28, 2025 Basta Steven L President and CEO M Performance Shares 90000 $0.00 180,000.0000 73,396,435 33.33% 0.12%
Nov. 3, 2025 Breedlove Robert Charles Principal Accounting Officer S Common Stock 524 $13.51 54,352.4000 73,396,435 0.95% 0.00%
Oct. 6, 2025 Narula Sanjeev Chief Financial & Bus. Officer A Common Stock 144000 $0.00 144,000.0000 73,396,435 9999.99% 0.20%
Oct. 6, 2025 Narula Sanjeev Chief Financial & Bus. Officer A Stock Option (Right to Buy) 200000 $0.00 200,000.0000 73,396,435 9999.99% 0.27%
Sept. 25, 2025 Basta Steven L President and CEO M Performance Shares 90000 $0.00 270,000.0000 63,176,210 25.00% 0.14%
Sept. 25, 2025 Basta Steven L President and CEO M Common Stock 90000 $0.00 90,000.0000 63,176,210 9999.99% 0.14%
Sept. 25, 2025 Basta Steven L President and CEO F Common Stock 48375 $11.66 41,625.0000 63,176,210 53.75% 0.08%
Sept. 5, 2025 Breedlove Robert Charles Principal Accounting Officer S Common Stock 461 $12.09 54,876.4000 63,176,210 0.83% 0.00%
July 16, 2025 Breedlove Robert Charles Principal Accounting Officer S Common Stock 1692 $8.36 53,500.4000 63,176,210 3.07% 0.00%
June 23, 2025 Cook Anne Marie Chief Legal Off. & Corp. Sec. A Stock Option (Right to Buy) 210000 $0.00 210,000.0000 63,176,210 9999.99% 0.33%
June 3, 2025 Parikh Asit Not found A Stock Option (Right to Buy) 17500 $0.00 17,500.0000 63,176,210 9999.99% 0.03%
June 3, 2025 COLA MICHAEL F Not found A Stock Option (Right to Buy) 17500 $0.00 17,500.0000 63,176,210 9999.99% 0.03%
June 3, 2025 Topper James N Not found A Common Stock 10500 $0.00 5,933,327.0000 63,176,210 0.18% 0.02%
June 3, 2025 Topper James N Not found A Stock Option (Right to Buy) 17500 $0.00 17,500.0000 63,176,210 9999.99% 0.03%
June 3, 2025 FIELDS HEIDI Not found A Common Stock 10500 $0.00 30,000.0000 63,176,210 53.85% 0.02%
June 3, 2025 FIELDS HEIDI Not found A Stock Option (Right to Buy) 17500 $0.00 17,500.0000 63,176,210 9999.99% 0.03%
June 3, 2025 Stenhouse Mark Not found A Common Stock 10500 $0.00 30,000.0000 63,176,210 53.85% 0.02%
June 3, 2025 Stenhouse Mark Not found A Stock Option (Right to Buy) 17500 $0.00 17,500.0000 63,176,210 9999.99% 0.03%
June 3, 2025 Parikh Asit Not found A Common Stock 10500 $0.00 113,500.0000 63,176,210 10.19% 0.02%
June 3, 2025 KARBE FRANK Not found A Common Stock 10500 $0.00 67,500.0000 63,176,210 18.42% 0.02%
June 3, 2025 KARBE FRANK Not found A Stock Option (Right to Buy) 17500 $0.00 17,500.0000 63,176,210 9999.99% 0.03%
June 3, 2025 COLA MICHAEL F Not found A Common Stock 10500 $0.00 39,798.0000 63,176,210 35.84% 0.02%
May 21, 2025 Topper James N Not found P Common Stock 3780 $3.86 5,922,827.0000 63,176,210 0.06% 0.01%
May 19, 2025 Breedlove Robert Charles Principal Accounting Officer A Stock Option (Right to Buy) 33000 $0.00 33,000.0000 63,176,210 9999.99% 0.05%
May 13, 2025 Topper James N Not found P Common Stock 1120 $3.16 5,912,747.0000 63,176,210 0.02% 0.00%
May 14, 2025 Topper James N Not found P Common Stock 6300 $3.32 5,919,047.0000 63,176,210 0.11% 0.01%
May 12, 2025 Topper James N Not found P Common Stock 12601 $3.04 5,911,627.0000 63,176,210 0.21% 0.02%
May 9, 2025 Topper James N Not found P Common Stock 2226 $3.62 5,899,026.0000 63,176,210 0.04% 0.00%
May 9, 2025 Topper James N Not found P Common Stock 33376 $3.19 5,896,800.0000 63,176,210 0.57% 0.05%
May 7, 2025 Parikh Asit Not found P Common Stock 5000 $2.40 95,500.0000 63,176,210 5.52% 0.01%
May 6, 2025 Parikh Asit Not found P Common Stock 5000 $2.60 90,500.0000 63,176,210 5.85% 0.01%
April 16, 2025 Schroeder Theodore R Not found A Common Stock 21000 $0.00 21,000.0000 63,176,210 9999.99% 0.03%
April 16, 2025 Schroeder Theodore R Not found A Common Stock (Right to Buy) 35000 $0.00 35,000.0000 63,176,210 9999.99% 0.06%
April 7, 2025 Henderson Molly CFO and CBO S Common Stock 3678 $4.55 91,779.2700 63,176,210 3.85% 0.01%
April 3, 2025 Basta Steven L President and CEO A Stock Option (Right to Buy) 1085000 $0.00 1,085,000.0000 63,176,210 9999.99% 1.72%
April 3, 2025 Basta Steven L President and CEO A Performance Shares 360000 $0.00 360,000.0000 63,176,210 9999.99% 0.57%
Sept. 10, 2024 Parikh Asit Not found M Common Stock 7500 $11.72 93,000.0000 51,289,092 8.77% 0.01%
Sept. 10, 2024 Parikh Asit Not found M Stock Option (Right to Buy) 7500 $0.00 7,500.0000 51,289,092 50.00% 0.01%
March 13, 2025 Parikh Asit Not found P Common Stock 10000 $4.42 85,500.0000 63,176,210 13.25% 0.02%
Feb. 27, 2025 Henderson Molly CFO and CBO A Stock Option (Right to Buy) 50000 $0.00 50,000.0000 63,176,210 9999.99% 0.08%
Feb. 27, 2025 Nabulsi Azmi Chief Operating Officer A Common Stock 79200 $0.00 1,101,868.9300 63,176,210 7.74% 0.13%
Feb. 27, 2025 Nabulsi Azmi Chief Operating Officer A Stock Option (Right to Buy) 55000 $0.00 55,000.0000 63,176,210 9999.99% 0.09%
Feb. 27, 2025 Henderson Molly CFO and CBO A Common Stock 72000 $0.00 167,457.2700 63,176,210 75.43% 0.11%
Feb. 27, 2025 Curran Terrie President and Chief Executive A Stock Option (Right to Buy) 342500 $0.00 342,500.0000 63,176,210 9999.99% 0.54%
Jan. 21, 2025 Henderson Molly CFO and CBO S Common Stock 6583 $6.59 95,457.2700 63,176,210 6.45% 0.01%
Jan. 21, 2025 Curran Terrie President and Chief Executive S Common Stock 19109 $6.59 364,305.1600 63,176,210 4.98% 0.03%
Jan. 21, 2025 Nabulsi Azmi Chief Operating Officer S Common Stock 7886 $6.59 1,022,668.9300 63,176,210 0.77% 0.01%
Dec. 19, 2024 Nabulsi Azmi Chief Operating Officer S Common Stock 1118 $8.00 1,028,581.9300 64,627,847 0.11% 0.00%
Dec. 19, 2024 Henderson Molly CFO and CBO S Common Stock 1291 $8.00 100,067.2700 64,627,847 1.27% 0.00%
Dec. 13, 2024 Parikh Asit Not found P Common Stock 10000 $8.12 75,500.0000 64,627,847 15.27% 0.02%
Dec. 13, 2024 KARBE FRANK Not found P Common Stock 12500 $7.93 57,000.0000 64,627,847 28.09% 0.02%
July 15, 2024 Nabulsi Azmi Chief Operating Officer S Common Stock 10901 $11.72 1,029,699.9300 51,289,092 1.05% 0.02%
July 15, 2024 Henderson Molly CFO and CBO S Common Stock 4325 $11.72 101,358.2700 51,289,092 4.09% 0.01%
July 15, 2024 Curran Terrie President and Chief Executive S Common Stock 33848 $11.72 381,574.1600 51,289,092 8.15% 0.07%
May 31, 2024 Nabulsi Azmi Chief Operating Officer A Common Stoock 7500 $0.00 249,567.0000 51,289,092 3.10% 0.01%
May 31, 2024 Henderson Molly CFO and CBO A Common Stoock 7500 $0.00 102,763.0000 51,289,092 7.87% 0.01%
May 29, 2024 KARBE FRANK Not found A Common Stock 25000 $10.16 44,500.0000 51,289,092 128.21% 0.05%
May 23, 2024 Topper James N Not found A Common Stock 10500 $0.00 5,863,424.0000 51,289,092 0.18% 0.02%
May 23, 2024 Topper James N Not found A Stock Option (Right to Buy) 17500 $0.00 17,500.0000 51,289,092 50.00% 0.03%
May 23, 2024 Parikh Asit Not found A Common Stock 10500 $0.00 65,500.0000 51,289,092 19.09% 0.02%
May 23, 2024 Parikh Asit Not found A Stock Option (Right to Buy) 17500 $0.00 17,500.0000 51,289,092 50.00% 0.03%
May 23, 2024 Stenhouse Mark Not found A Common Stock 10500 $0.00 19,500.0000 51,289,092 116.67% 0.02%
May 23, 2024 KARBE FRANK Not found A Stock Option (Right to Buy) 17500 $0.00 17,500.0000 51,289,092 50.00% 0.03%
May 23, 2024 KARBE FRANK Not found A Common Stock 10500 $0.00 19,500.0000 51,289,092 116.67% 0.02%
May 23, 2024 FIELDS HEIDI Not found A Stock Option (Right to Buy) 17500 $0.00 17,500.0000 51,289,092 50.00% 0.03%
May 23, 2024 FIELDS HEIDI Not found A Common Stock 10500 $0.00 19,500.0000 51,289,092 116.67% 0.02%
May 23, 2024 COLA MICHAEL F Not found A Stock Option (Right to Buy) 17500 $0.00 17,500.0000 51,289,092 50.00% 0.03%
May 23, 2024 COLA MICHAEL F Not found A Common Stock 10500 $0.00 29,298.0000 51,289,092 55.86% 0.02%
May 23, 2024 Socks David A Not found A Stock Option (Right to Buy) 17500 $0.00 17,500.0000 51,289,092 50.00% 0.03%
May 23, 2024 Socks David A Not found A Common Stock 10500 $0.00 1,231,255.7300 51,289,092 0.86% 0.02%
May 23, 2024 Stenhouse Mark Not found A Stock Option (Right to Buy) 17500 $0.00 17,500.0000 51,289,092 50.00% 0.03%
April 8, 2024 Henderson Molly CFO and CBO S Common Stoock 3435 $11.10 95,263.0000 51,289,092 3.48% 0.01%
March 22, 2024 Curran Terrie President and Chief Executive S Common Stock 16851 $9.11 414,624.1600 51,289,092 3.91% 0.03%
Jan. 18, 2024 Nabulsi Azmi Chief Operating Officer A Stock Option (Right to Buy) 130000 $0.00 130,000.0000 51,289,092 9999.99% 0.25%
Jan. 19, 2024 Henderson Molly CFO and CBO S Common Stock 6307 $7.75 100,609.2700 51,289,092 5.90% 0.01%
Jan. 18, 2024 Henderson Molly CFO and CBO A Stock Option (Right to Buy) 120000 $0.00 120,000.0000 51,289,092 9999.99% 0.23%
Jan. 18, 2024 Curran Terrie President and Chief Executive A Stock Option (Right to Buy) 475000 $0.00 475,000.0000 51,289,092 9999.99% 0.93%
Nov. 20, 2023 Henderson Molly CFO and CBO S Common Stock 2127 $7.24 104,195.2700 0 2.00% 0.00%
Nov. 7, 2023 Parikh Asit Director P Common Stock 4000 $7.76 52,500.0000 0 8.25% 0.00%
Nov. 6, 2023 Parikh Asit Director P Common Stock 1000 $8.04 48,500.0000 0 2.11% 0.00%
Nov. 8, 2023 Parikh Asit Director P Common Stock 2500 $7.80 55,000.0000 0 4.76% 0.00%
Nov. 1, 2023 Henderson Molly CFO and CBO A Common Stock 22500 $0.00 118,814.2700 0 23.36% 0.00%
Nov. 1, 2023 Henderson Molly CFO and CBO S Common Stock 811 $7.80 118,003.2700 0 0.68% 0.00%
Nov. 1, 2023 Henderson Molly CFO and CBO S Common Stock 11681 $8.95 106,322.2700 0 9.90% 0.00%
Nov. 1, 2023 Nabulsi Azmi Chief Operating Officer A Common Stock 32500 $0.00 1,031,345.9300 0 3.25% 0.00%
Nov. 1, 2023 Curran Terrie President and Chief Executive A Common Stock 37500 $0.00 430,750.6100 0 9.54% 0.00%
July 14, 2023 Henderson Molly CFO and CBO A Common Stock 25000 $0.00 95,180.0000 0 35.62% 0.00%
July 14, 2023 Henderson Molly CFO and CBO A Common Stock 25000 $1.00 96,314.2700 0 35.06% 0.00%
July 14, 2023 Curran Terrie President and Chief Executive A Common Stock 200000 $0.00 393,250.6100 0 103.49% 0.00%
July 14, 2023 Curran Terrie President and Chief Executive D Stock Option 175000 $0.00 0.0000 0 100.00% 0.00%
July 14, 2023 Curran Terrie President and Chief Executive D Stock Option 225000 $0.00 0.0000 0 100.00% 0.00%
July 14, 2023 Nabulsi Azmi Chief Operating Officer A Common Stock 110000 $0.00 998,845.9300 0 12.38% 0.00%
July 14, 2023 Nabulsi Azmi Chief Operating Officer D Stock Option 70000 $0.00 0.0000 0 100.00% 0.00%
July 14, 2023 Nabulsi Azmi Chief Operating Officer D Stock Option 150000 $0.00 0.0000 0 100.00% 0.00%
June 2, 2023 Parikh Asit Director A Common Stock 15000 $7.40 47,500.0000 0 46.15% 0.00%
June 2, 2023 Parikh Asit Director D Stock Option (Right to Buy) 15000 $0.00 0.0000 0 100.00% 0.00%
June 2, 2023 Henderson Molly CFO and CBO S Common Stock 1960 $11.41 68,844.8600 0 2.77% 0.00%
May 25, 2023 Socks David A Director A Stock Option (Right to Buy) 15000 $0.00 15,000.0000 0 9999.99% 0.00%
May 25, 2023 COLA MICHAEL F Director A Stock Option (Right to Buy) 15000 $0.00 15,000.0000 0 9999.99% 0.00%
May 25, 2023 COLA MICHAEL F Director A Common Stock 9000 $0.00 18,798.0000 0 91.86% 0.00%
May 25, 2023 KARBE FRANK Director A Stock Option (Right to Buy) 15000 $0.00 15,000.0000 0 9999.99% 0.00%
May 25, 2023 KARBE FRANK Director A Common Stock 9000 $0.00 9,000.0000 0 9999.99% 0.00%
May 25, 2023 FIELDS HEIDI Director A Stock Option (Right to Buy) 15000 $0.00 15,000.0000 0 9999.99% 0.00%
May 25, 2023 FIELDS HEIDI Director A Common Stock 9000 $0.00 9,000.0000 0 9999.99% 0.00%
May 25, 2023 Parikh Asit Director A Stock Option (Right to Buy) 15000 $0.00 15,000.0000 0 9999.99% 0.00%
May 25, 2023 Parikh Asit Director A Common Stock 9000 $0.00 32,500.0000 0 38.30% 0.00%
May 25, 2023 Socks David A Director A Common Stock 9000 $0.00 1,220,755.7300 0 0.74% 0.00%
May 25, 2023 Stenhouse Mark Director A Stock Option (Right to Buy) 15000 $0.00 15,000.0000 0 9999.99% 0.00%
May 25, 2023 Stenhouse Mark Director A Common Stock 9000 $0.00 9,000.0000 0 9999.99% 0.00%
May 25, 2023 Topper James N Director A Stock Option (Right to Buy) 15000 $0.00 15,000.0000 0 9999.99% 0.00%
May 25, 2023 Topper James N Director A Common Stock 9000 $0.00 5,852,924.0000 0 0.15% 0.00%
May 22, 2023 Henderson Molly CFO and CBO S Common Stock 2110 $12.87 70,804.8600 0 2.89% 0.00%
April 10, 2023 Parikh Asit Director P Common Stock 1000 $7.55 23,500.0000 0 4.44% 0.00%
April 11, 2023 Nabulsi Azmi Chief Operating Officer P Common Stock 10000 $8.26 887,622.2200 0 1.14% 0.00%
April 6, 2023 Curran Terrie President and Chief Executive P Common Stock 12919 $7.82 190,525.9000 0 7.27% 0.00%
April 6, 2023 Henderson Molly CFO and CBO S Common Stock 3439 $7.27 72,914.8600 0 4.50% 0.00%
March 1, 2023 Curran Terrie President and Chief Executive S Common Stock 1436 $8.54 177,606.9000 0 0.80% 0.00%
March 1, 2023 Henderson Molly CFO and CBO S Common Stock 2032 $8.53 76,353.8600 0 2.59% 0.00%
Feb. 13, 2023 Parikh Asit Director P Common Stock 5000 $7.73 22,500.0000 0 28.57% 0.00%
Jan. 19, 2023 Nabulsi Azmi Chief Operating Officer A Common Stock 45000 $0.00 877,622.2200 0 5.40% 0.00%
Jan. 19, 2023 Henderson Molly CFO and CBO A Stock Option (Right to Buy) 55000 $0.00 55,000.0000 0 9999.99% 0.00%
Jan. 19, 2023 Henderson Molly CFO and CBO A Common Stock 33000 $0.00 78,385.8600 0 72.71% 0.00%
Jan. 19, 2023 Nabulsi Azmi Chief Operating Officer A Stock Option (Right to Buy) 75000 $0.00 75,000.0000 0 9999.99% 0.00%
Jan. 20, 2023 Curran Terrie President and Chief Executive S Common Stock 5821 $8.20 179,042.9000 0 3.15% 0.00%
Jan. 19, 2023 Curran Terrie President and Chief Executive A Stock Option (Right to Buy) 162500 $0.00 162,500.0000 0 9999.99% 0.00%
Jan. 19, 2023 Curran Terrie President and Chief Executive A Common Stock 97500 $0.00 184,863.9000 0 111.60% 0.00%
Jan. 12, 2023 Parikh Asit Director P Common Stock 5000 $7.00 17,500.0000 0 40.00% 0.00%