SPTX Smart Money
Seaport Therapeutics, Inc. Common Stock
1W: -14.4%
1M: -26.1%
3M: -4.9%
YTD: -7.2%
$18.42
-0.53 (-2.80%)
Weekly Expected Move ±11.5%
$14
$16
$18
$21
$23
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🏦 Institutional Activity
Latest: Q2 202656
Institutions Holding
+0 vs prior
80.0%
Ownership
+80.02%
56
New
0
Increased
0
Reduced
0
Closed
👔 Insider Trades
22 records| Date | Name | Title | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-06-22 | HOMBACH ROBERT J. | director | P-Purchase | 13,000 | $18.14 | $236K | Filing |
| 2026-05-04 | HEALY JAMES | director | C-Conversion | 1,927,159 | $— | $0 | Filing |
| 2026-05-04 | HEALY JAMES | director | C-Conversion | 804,379 | $— | $0 | Filing |
| 2026-05-04 | White Lauren | officer: chief financial officer | C-Conversion | 6,702 | $— | $0 | Filing |
| 2026-05-04 | Gladstein Lana | officer: general counsel | C-Conversion | 33,515 | $— | $0 | Filing |
| 2026-05-04 | Chen Michael Cunyuan | officer: chief scientific officer | C-Conversion | 3,351 | $— | $0 | Filing |
| 2026-05-04 | Torres Denice | director | C-Conversion | 13,406 | $— | $0 | Filing |
| 2026-05-04 | PAUL STEVEN M | director | C-Conversion | 67,031 | $— | $0 | Filing |
| 2026-05-04 | ARCH Venture Partners XII, LLC | 10% owner | P-Purchase | 1,100,000 | $18.00 | $19.8M | Filing |
| 2026-05-04 | ARCH Venture Partners XII, L.P. | 10% owner | P-Purchase | 1,100,000 | $18.00 | $19.8M | Filing |
| 2026-05-04 | ARCH Venture Fund XII, L.P. | 10% owner | P-Purchase | 1,100,000 | $18.00 | $19.8M | Filing |
| 2026-05-04 | CRANDELL KEITH | 10% owner | P-Purchase | 1,100,000 | $18.00 | $19.8M | Filing |
| 2026-05-04 | NELSEN ROBERT | 10% owner | P-Purchase | 1,100,000 | $18.00 | $19.8M | Filing |
| 2026-05-04 | Burow Kristina | 10% owner | P-Purchase | 1,100,000 | $18.00 | $19.8M | Filing |
| 2026-05-04 | GILLIS STEVEN | 10% owner | P-Purchase | 1,100,000 | $18.00 | $19.8M | Filing |
| 2026-05-04 | PureTech Health plc | 10% owner | C-Conversion | 12,736,014 | $— | $0 | Filing |
| 2026-05-04 | PureTech LYT, Inc. | 10% owner | C-Conversion | 12,736,014 | $— | $0 | Filing |
| 2026-05-04 | PureTech Health plc | 10% owner | C-Conversion | 2,681,265 | $— | $0 | Filing |
| 2026-05-04 | PureTech LYT, Inc. | 10% owner | C-Conversion | 2,681,265 | $— | $0 | Filing |
| 2026-05-04 | PureTech Health plc | 10% owner | C-Conversion | 965,255 | $— | $0 | Filing |
| 2026-05-04 | PureTech LYT, Inc. | 10% owner | C-Conversion | 965,255 | $— | $0 | Filing |
| 2026-05-04 | Loebel Antony | officer: chief medical officer | C-Conversion | 20,109 | $— | $0 | Filing |
🏛️ Congressional Trades
0 records| Date | Politician | Chamber | Type | Amount | Filing |
|---|---|---|---|---|---|
| No congressional trades found | |||||
🏦 Top Institutional Holders
20 holders| Holder | Shares | Value | Date Reported | Filing | |
|---|---|---|---|---|---|
| ARCH Venture Management, LLC | 6,294,951 | $137M | +6,294,951 | 2026-06-30 | Filing |
| GENERAL ATLANTIC, L.P. | 6,101,582 | $133M | +6,101,582 | 2026-06-30 | Filing |
| Sofinnova Investments, Inc. | 3,564,871 | $77M | +3,564,871 | 2026-06-30 | Filing |
| GOLDMAN SACHS GROUP INC | 2,178,642 | $47M | +2,178,642 | 2026-06-30 | Filing |
| TRV GP VI, LLC | 2,061,222 | $45M | +2,061,222 | 2026-06-30 | Filing |
| CANADA PENSION PLAN INVESTMENT BOARD | 1,975,791 | $43M | +1,975,791 | 2026-06-30 | Filing |
| JPMORGAN CHASE & CO | 1,815,845 | $41M | +1,815,845 | 2026-06-30 | Filing |
| Foresite Capital Management VI LLC | 1,779,521 | $39M | +1,779,521 | 2026-06-30 | Filing |
| FMR LLC | 1,185,100 | $26M | +1,185,100 | 2026-06-30 | Filing |
| Bellevue Group AG | 1,100,000 | $24M | +1,100,000 | 2026-06-30 | Filing |
| Siren, L.L.C. | 1,095,316 | $24M | +1,095,316 | 2026-06-30 | Filing |
| JENNISON ASSOCIATES LLC | 1,079,669 | $23M | +1,079,669 | 2026-06-30 | Filing |
| RA CAPITAL MANAGEMENT, L.P. | 700,000 | $15M | +700,000 | 2026-06-30 | Filing |
| VANGUARD CAPITAL MANAGEMENT LLC | 599,217 | $13M | +599,217 | 2026-06-30 | Filing |
| Woodline Partners LP | 586,345 | $13M | +586,345 | 2026-06-30 | Filing |
| BRAIDWELL LP | 500,000 | $11M | +500,000 | 2026-06-30 | Filing |
| PERCEPTIVE ADVISORS LLC | 500,000 | $11M | +500,000 | 2026-06-30 | Filing |
| PRINCIPAL FINANCIAL GROUP INC | 414,672 | $9M | +414,672 | 2026-06-30 | Filing |
| Aberdeen Group plc | 310,355 | $7M | +310,355 | 2026-06-30 | Filing |
| UBS Group AG | 279,184 | $6M | +279,184 | 2026-06-30 | Filing |