ISSUER PROFILE · CIK 0002042347
Seaport Therapeutics, Inc.SPTX
1 13D/G filings
1 distinct filers
38 insider transactions (365d)
Cross-Reference Snapshot
Activist filings
1
1 SCHEDULE 13D
Distinct filers
1
single filer
Insiders (365d)
38
14 buys · 0 sales
Latest short DTC
16.23
as of 2026-06-15
13D/G Filings Timeline · 1 total
Form 4 Insider Transactions · last 365d
| Date | Insider | Role | Type | Shares | Price | Value |
|---|
| 2026-05-04 |
PureTech Health plc |
10%+ |
C |
12,736,014 |
— |
— |
| 2026-05-04 |
HEALY JAMES |
director |
C |
1,927,159 |
— |
— |
| 2026-05-04 |
White Lauren |
officer |
C |
6,702 |
— |
— |
| 2026-05-04 |
Gladstein Lana |
officer |
C |
33,515 |
— |
— |
| 2026-05-04 |
Chen Michael Cunyuan |
officer |
C |
3,351 |
— |
— |
| 2026-05-04 |
Torres Denice |
director |
C |
13,406 |
— |
— |
| 2026-05-04 |
PAUL STEVEN M |
director |
C |
67,031 |
— |
— |
| 2026-05-04 |
ARCH Venture Partners XII, LLC |
10%+ |
C |
2,513,686 |
— |
— |
| 2026-05-04 |
Loebel Antony |
officer |
C |
20,109 |
— |
— |
| 2026-05-04 |
Loebel Antony |
officer |
C |
63,157 |
— |
— |
| 2026-05-04 |
ARCH Venture Partners XII, LLC |
10%+ |
C |
2,681,265 |
— |
— |
| 2026-05-04 |
ARCH Venture Partners XII, LLC |
10%+ |
Buy |
1,100,000 |
$18.00 |
$19.80M |
| 2026-05-04 |
PAUL STEVEN M |
director |
C |
210,526 |
— |
— |
| 2026-05-04 |
Torres Denice |
director |
C |
42,105 |
— |
— |
| 2026-05-04 |
Chen Michael Cunyuan |
officer |
C |
10,526 |
— |
— |
| 2026-05-04 |
Gladstein Lana |
officer |
C |
105,263 |
— |
— |
| 2026-05-04 |
White Lauren |
officer |
C |
21,052 |
— |
— |
| 2026-05-04 |
HEALY JAMES |
director |
C |
804,379 |
— |
— |
| 2026-05-04 |
HEALY JAMES |
director |
C |
6,052,631 |
— |
— |
| 2026-05-04 |
HEALY JAMES |
director |
C |
2,526,315 |
— |
— |
| 2026-05-04 |
PureTech Health plc |
10%+ |
C |
2,681,265 |
— |
— |
| 2026-05-04 |
PureTech Health plc |
10%+ |
C |
965,255 |
— |
— |
| 2026-05-04 |
PureTech Health plc |
10%+ |
C |
40,000,000 |
— |
— |
| 2026-05-04 |
PureTech Health plc |
10%+ |
C |
8,421,052 |
— |
— |
| 2026-05-04 |
PureTech Health plc |
10%+ |
C |
3,031,578 |
— |
— |
Showing 25 of 38
FINRA Short Interest History
| Settlement | Short Interest | Days to Cover | % Δ vs prior |
|---|
| 2026-06-15 |
1,938,933 |
16.23 |
+10.7% |
| 2026-05-29 |
1,752,377 |
8.08 |
+20.1% |
| 2026-05-15 |
1,459,469 |
1.72 |
+100.0% |
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