SPTX
Seaport Therapeutics, Inc.Closed16.08−1.07 −6.24%USD
NasdaqGS · as of Oct 13, 16:00 ET · 15m delayAfter hours 16.08 0.00%
Open
17.08
Prev close
17.15
Day range
16.0317.30
52-week range
14.8528.38
Volume
227.20K1.23×
Mkt cap
860.77M
P/E ttm
—
Fwd P/E
-6.25
EPS ttm
-5.81
Div yield
0.00%
Earnings
—
From 52w high
−43.34%
SPTX shareholders
SPTX Ownership
13F / N-PORT filings via Yahoo
Institutions
71.0%
109.4% of the float
Insiders
35.1%
officers and directors
Institutional holders
74
filing positions
Top 10 institutions
52.8%
10 adding · 0 trimming
Top Institutions
| Holder | % held | Shares | Value | Change | As of |
|---|---|---|---|---|---|
| Arch Venture Management, Llc | 11.76% | 6.29M | $101.22M | +100.0% | Jun 30, 2026 |
| General Atlantic, L.P. | 11.40% | 6.10M | $98.11M | +100.0% | Jun 30, 2026 |
| Sofinnova Investments, Inc. | 6.66% | 3.56M | $57.32M | +100.0% | Jun 30, 2026 |
| Goldman Sachs Group Inc | 4.07% | 2.18M | $35.03M | +100.0% | Jun 30, 2026 |
| Trv Gp VI, LLC | 3.85% | 2.06M | $33.14M | +100.0% | Jun 30, 2026 |
| Canada Pension Plan Investment Board | 3.69% | 1.98M | $31.77M | +100.0% | Jun 30, 2026 |
| JPMORGAN CHASE & CO | 3.39% | 1.82M | $29.20M | +100.0% | Jun 30, 2026 |
| Foresite Capital Management VI LLC | 3.32% | 1.78M | $28.61M | +100.0% | Jun 30, 2026 |
| Price (T.Rowe) Associates Inc | 2.44% | 1.31M | $21.04M | +100.0% | Jun 30, 2026 |
| FMR, LLC | 2.21% | 1.19M | $19.06M | +100.0% | Jun 30, 2026 |
Top Funds
| Holder | % held | Shares | Value | Change | As of |
|---|---|---|---|---|---|
| JPMorgan Trust II-JPMorgan Small Cap Growth Fund | 1.57% | 840.93K | $13.52M | +100.0% | Jun 30, 2026 |
| Prudential Sector Funds, Inc.-PGIM Jennison Health Sciences Fund | 0.82% | 438.75K | $7.06M | +100.0% | May 31, 2026 |
| VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund | 0.80% | 426.37K | $6.86M | +100.0% | Jun 30, 2026 |
| Fidelity Mt. Vernon Street Trust-Fidelity Growth Company Fund | 0.79% | 424.19K | $6.82M | +21.0% | Aug 31, 2026 |
| T. Rowe Price Health Sciences Fund, Inc. | 0.56% | 299.32K | $4.81M | +100.0% | Jun 30, 2026 |
| JPMorgan Trust I-JPMorgan Small Cap Blend Fund | 0.51% | 271.50K | $4.37M | +100.0% | Jun 30, 2026 |
| Fidelity Securities Fund-Fidelity Blue Chip Growth Fund | 0.44% | 235.90K | $3.79M | 0.0% | Aug 31, 2026 |
| Principal Funds, Inc-SmallCap Fund | 0.34% | 181.50K | $2.92M | +100.0% | Jul 31, 2026 |
| VANGUARD INDEX FUNDS-Vanguard Extended Market Index Fund | 0.31% | 165.44K | $2.66M | +100.0% | Jun 30, 2026 |
| Fidelity Mt. Vernon Street Trust-Fidelity Growth Company K6 Fund | 0.22% | 119.61K | $1.92M | +21.3% | Aug 31, 2026 |
Institutions report quarterly, up to 45 days after the quarter ends, so these positions can be months old. Change compares the share count with the holder's previous filing. Insider transactions are on the overview page (INSD).