PHAT Phathom Pharmaceuticals, Inc.

Ownership history in Catalys Pacific, LLC  ·  9 quarters on record

This page tracks every 13F SEC filing in which Catalys Pacific, LLC reported a position in Phathom Pharmaceuticals, Inc. (PHAT). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
16.19% (2024 Q3)
Avg. % of fund
7.37%
First filed
2023 Q4
Last filed
2025 Q4
Quarters held
9
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q4 ADDED 1,429,014 +261,900 +22.4% 7.63% $23.7M $16.59
2025 Q3 UNCHANGED 1,167,114 0% 3.91% $13.7M $11.77
2025 Q2 UNCHANGED 1,167,114 0% 8.50% $11.2M $9.59
2025 Q1 UNCHANGED 1,167,114 0% 4.92% $7.3M $6.27
2024 Q4 ADDED 1,167,114 +44,542 +4.0% 8.18% $9.5M $8.12
2024 Q3 ADDED 1,122,572 +400,610 +55.5% 16.19% $20.3M $18.08
2024 Q2 UNCHANGED 721,962 0% 5.61% $7.4M $10.30
2024 Q1 UNCHANGED 721,962 0% 5.18% $7.7M $10.62
2023 Q4 INITIATED 721,962 6.18% $6.6M
% of Fund (quarterly)    PHAT price (monthly, adj. close)
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