Catalio Capital Management, LP
Position in PHAT — Phathom Pharmaceuticals, Inc.
CIK 1958125
NEW YORK, NY
Position in PHAT
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$2,752,691
-$8,843,652 QoQ
Shares Held
247,767
-64.6% QoQ
Ownership
0.311%
of shares outstanding
% of Portfolio
0.58%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2025
4 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 Mar 31, 2026Catalio Capital Management, LP holds $360,864,886 across 31 Biotechnology names. PHAT ranks #24 (0.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | DNTH |
Dianthus Therapeutics, Inc. /DE/
|
560,308 | $47,021,047 | |
| 2 | BBIO |
BridgeBio Pharma, Inc.
|
432,014 | $32,081,359 | |
| 3 | ASND |
Ascendis Pharma A/S
|
129,111 | $29,531,559 | |
| 4 | SNDX |
Syndax Pharmaceuticals Inc
|
1,043,670 | $24,380,131 | |
| 5 | TERN |
Terns Pharmaceuticals, Inc.
|
409,031 | $21,564,114 | |
| 6 | DFTX |
Definium Therapeutics, Inc.
|
1,037,984 | $19,617,897 | |
| 7 | SLNO |
Soleno Therapeutics Inc
|
577,808 | $19,345,011 | |
| 8 | RARE |
Ultragenyx Pharmaceutical Inc.
|
850,797 | $17,824,197 |
All Filings in PHAT
Export CSV
4 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $2,752,691 | 247,767 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $11,596,343 | 698,996 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $13,282,692 | 1,128,521 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $6,447,261 | 672,290 | Shares | Sole | 2025-08-14 | |
| No filing history on record for this holder in this stock. | ||||||