Seaport Therapeutics, Inc. (SPTX) — Insider Trading

Insider trading activity for Seaport Therapeutics, Inc. sourced from SEC EDGAR Form 4 filings.

Overview

Total insider trades: 40
Last trade date: May 6, 2026
Ticker: SPTX

Top Insiders

HEALY JAMES — 4 trades, buy: $0, sell: $0
White Lauren (Chief Financial Officer) — 3 trades, buy: $0, sell: $0
Wheadon David E. — 1 trades, buy: $0, sell: $0
PETERSON SANDRA E — 1 trades, buy: $0, sell: $0
Zohar Daphne (Chief Executive Officer) — 2 trades, buy: $0, sell: $0

Recent Trades

Date	Insider	Ticker / Company	Type	Shares	Value
May 4, 2026	PureTech Health plc	SPTX Seaport Therapeutics, Inc.	OTHER	3,031,578	N/A
May 4, 2026	PureTech Health plc	SPTX Seaport Therapeutics, Inc.	OTHER	8,421,052	N/A
May 4, 2026	PureTech Health plc	SPTX Seaport Therapeutics, Inc.	OTHER	40,000,000	N/A
May 4, 2026	PureTech Health plc	SPTX Seaport Therapeutics, Inc.	OTHER	965,255	N/A
May 4, 2026	PureTech Health plc	SPTX Seaport Therapeutics, Inc.	OTHER	2,681,265	N/A
May 4, 2026	PureTech Health plc	SPTX Seaport Therapeutics, Inc.	OTHER	12,736,014	N/A
Apr 30, 2026	Mates Sharon	SPTX Seaport Therapeutics, Inc.	BUY	49,033	N/A
May 4, 2026	Loebel Antony	SPTX Seaport Therapeutics, Inc.	OTHER	63,157	N/A
Apr 30, 2026	Loebel Antony	SPTX Seaport Therapeutics, Inc.	BUY	63,680	N/A
May 4, 2026	Loebel Antony	SPTX Seaport Therapeutics, Inc.	OTHER	20,109	N/A
Apr 30, 2026	HOMBACH ROBERT J.	SPTX Seaport Therapeutics, Inc.	BUY	12,258	N/A
May 4, 2026	ARCH Venture Partners XII, LLC	SPTX Seaport Therapeutics, Inc.	OTHER	2,681,265	N/A
May 4, 2026	ARCH Venture Partners XII, LLC	SPTX Seaport Therapeutics, Inc.	OTHER	2,513,686	N/A
May 4, 2026	ARCH Venture Partners XII, LLC	SPTX Seaport Therapeutics, Inc.	BUY	1,100,000	$19.8M
May 4, 2026	ARCH Venture Partners XII, LLC	SPTX Seaport Therapeutics, Inc.	OTHER	2,681,265	N/A
May 4, 2026	ARCH Venture Partners XII, LLC	SPTX Seaport Therapeutics, Inc.	OTHER	2,513,686	N/A
May 4, 2026	PAUL STEVEN M	SPTX Seaport Therapeutics, Inc.	OTHER	210,526	N/A
Apr 30, 2026	PAUL STEVEN M	SPTX Seaport Therapeutics, Inc.	BUY	991,192	N/A
Apr 30, 2026	PAUL STEVEN M	SPTX Seaport Therapeutics, Inc.	BUY	12,258	N/A
May 4, 2026	PAUL STEVEN M	SPTX Seaport Therapeutics, Inc.	OTHER	67,031	N/A

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