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SCHEDULE 13D Filed 2026-05-11 Event 2026-05-04 SEC 0000950142-26-001350 →

GENERAL ATLANTIC, L.P. Seaport Therapeutics, Inc. SPTX

Stake: Shares: 6,101,582 Class: Common stock, par value $0.0001 per share

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)
38 transactions
14 buys · 0 sales · 0 awards/exercises
Issuer Cluster
1 13D/G filings on this issuer
0 other filings besides this one
Filer Track Record
26 filings by this filer
25 other filings in the data moat
Short Interest · settle 2026-07-31
DTC 30.75
2,758,029 shares short · +39.3% vs prior

Post-Filing Returns · since 2026-05-04 on SPTX

+1 day
0.0%
+5 days
0.0%
+30 days
0.0%
+60 days
0.0%
+90 days
+180 days

Anchor price 18.23 on closest trading day on/after 2026-05-04. Source: Yahoo Finance daily adj_close (split + dividend adjusted).

Form 4 Insider Transactions · last 365d

DateInsiderRoleTypeSharesPriceValue
2026-05-04 PureTech Health plc 10%+ owner 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%+ owner 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%+ owner C 2,681,265
2026-05-04 ARCH Venture Partners XII, LLC 10%+ owner 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%+ owner C 2,681,265
2026-05-04 PureTech Health plc 10%+ owner C 965,255
2026-05-04 PureTech Health plc 10%+ owner C 40,000,000
2026-05-04 PureTech Health plc 10%+ owner C 8,421,052
2026-05-04 PureTech Health plc 10%+ owner C 3,031,578
Showing 25 of 38

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Showing 20 of 25

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