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Equibles

Frazier Life Sciences Management, L.P.

Position in PHAT — Phathom Pharmaceuticals, Inc.

CIK 1892134 PALO ALTO, CA
Back to PHAT Full portfolio

Position in PHAT

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$135,261,405
-$3,241,287 QoQ
Shares Held
12,466,489
0.0% QoQ
Ownership
15.4%
of shares outstanding
% of Portfolio
2.95%
of 13F equity value
Holder Rank
#1
of 161 holders
Holding Since
Mar 2022
18 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in PHAT Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

Frazier Life Sciences Management, L.P. holds $4,497,017,185 across 37 Biotechnology names. PHAT ranks #9 (3.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 MIRM
Mirum Pharmaceuticals, Inc.
 7,679,684 $899,060,605
2 NAMS
NewAmsterdam Pharma Co N.V.
 18,589,235 $623,725,004
3 ERAS
Erasca, Inc.
 24,975,188 $457,545,444
4 MBX
MBX Biosciences, Inc.
 6,652,013 $367,191,117
5 ARQT
Arcutis Biotherapeutics, Inc.
 9,874,511 $258,909,678
6 TRVI
Trevi Therapeutics, Inc.
 9,939,447 $185,370,686
7 KRYS
Krystal Biotech, Inc.
 481,307 $178,887,372
8 MAZE
Maze Therapeutics, Inc.
 5,032,915 $150,182,183

All Filings in PHAT

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18 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $135,261,405 12,466,489
2026-03-31 $138,502,692 12,466,489
2025-12-31 $206,819,052 12,466,489
2025-09-30 $146,730,575 12,466,489
2025-06-30 $119,553,629 12,466,489
2025-03-31 $63,385,179 10,109,279
2024-12-31 $82,087,345 10,109,279
2024-09-30 $182,775,764 10,109,279
2024-06-30 $104,125,573 10,109,279
2024-03-31 $107,360,542 10,109,279
2023-12-31 $92,297,717 10,109,279
2023-09-30 $104,833,223 10,109,279
2023-06-30 $144,764,875 10,109,279
2023-03-31 $60,027,065 8,407,152
2022-12-31 $94,328,245 8,407,152
2022-09-30 $93,151,244 8,407,152
2022-06-30 $49,183,382 5,827,415
2022-03-31 $79,311,118 5,827,415