Sofinnova Investments, Inc.
Position in SPTX — Seaport Therapeutics, Inc.
CIK 1631134
Menlo Park, CA
Position in SPTX
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$77,428,998
New position
Shares Held
3,564,871
first reported quarter
Ownership
6.66%
of shares outstanding
% of Portfolio
4.14%
of 13F equity value
Holder Rank
#3
of 54 holders
Holding Since
Jun 2026
1 quarter on record
Voting authority
Sole 100%
Shared 0%
None 0%
Position in Biotechnology
Healthcare · as of Jun 30, 2026Sofinnova Investments, Inc. holds $1,182,454,857 across 43 Biotechnology names. SPTX ranks #5 (6.5% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VERA |
Vera Therapeutics, Inc.
|
2,793,987 | $119,889,982 | |
| 2 | GMAB |
Genmab A/S
|
4,045,215 | $111,122,056 | |
| 3 | JAZZ |
Jazz Pharmaceuticals plc
|
365,341 | $88,036,220 | |
| 4 | RAPP |
Rapport Therapeutics, Inc.
|
1,904,408 | $79,356,681 | |
| 5 | SPTX |
Seaport Therapeutics, Inc.
This page
|
3,564,871 | $77,428,998 | |
| 6 | AVBP |
ArriVent BioPharma, Inc.
|
1,696,752 | $58,945,164 | |
| 7 | RARE |
Ultragenyx Pharmaceutical Inc.
|
1,717,505 | $57,347,491 | |
| 8 | RYTM |
Rhythm Pharmaceuticals, Inc.
|
408,027 | $45,303,237 |
All Filings in SPTX
Export CSV
1 filing row on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $77,428,998 | 3,564,871 | Shares | Sole | 2026-08-14 | |
| No filing history on record for this holder in this stock. | ||||||