SIEGALL CLAY B Insider Trading Activity (STTK)

Summary

Updated Jul 16, 2026

SIEGALL CLAY B has filed 3 SEC Form 4 filings across 1 company in the last 90 days — buying. Lifetime open-market purchases: $1.71M. Historical track record: 5/5 stars across 3 tracked purchases.

Profile

Clay B. Siegall is a prominent biopharmaceutical executive known for his leadership roles in several companies, including Shattuck Labs, Tourmaline Bio, and Immunome. He has a strong background in cancer research and has contributed significantly to the development of targeted therapies.

Role	Insider
Notability	50/100

Board memberships

Shattuck Labs, Inc.
Tourmaline Bio, Inc.
Immunome Inc.

Awards & honors

Co-founder of Seattle Genetics
Developed ADCETRIS, a cancer treatment
Leadership in multiple biotech companies

Track Record

InsiderAlpha computes a forward-return-based score for every insider with enough Form 4 purchase history. The metrics below reflect realised performance after each tracked open-market purchase.

InsiderAlpha rating	★★★★★ (5/5)
Total purchases tracked	3
Purchases with forward-return data	3
30-day win rate	10000%
90-day win rate	6667%
Avg 5-day return	+2468.35%
Avg 30-day return	+1598.37%
Avg 90-day return	+232.59%
Best 30-day return	+1978.58%

Recent Transactions

Date	Ticker	Company	Code	Shares	Price	Value
2026-06-11	STTK	Shattuck Labs, Inc.	P — Open-market purchase	62.5K	$4.00	$250K
2026-05-27	STTK	Shattuck Labs, Inc.	A — Grant or award	128.1K	$1.08	$139K
2026-03-31	IMNM	Immunome Inc.	P — Open-market purchase	25.4K	$19.67	$501K
2025-08-25	STTK	Shattuck Labs, Inc.	A — Grant or award	128.1K	$0.87	$111K
2024-11-25	IMNM	Immunome Inc.	P — Open-market purchase	33.9K	$9.78	$332K
2024-11-25	IMNM	Immunome Inc.	P — Open-market purchase	66.1K	$9.54	$630K

Frequently Asked Questions

Who is SIEGALL CLAY B?

How many SEC Form 4 filings has SIEGALL CLAY B submitted recently?

3 primary Form 4 filings in the last 90 days, covering 1 company.

Has SIEGALL CLAY B been buying or selling stock?

Recorded transactions: 4 open-market purchases ($1.71M) and 0 open-market sales () across all tracked filings.

How accurate is SIEGALL CLAY B's historical track record?

Across 3 tracked purchases, SIEGALL CLAY B averaged +1598.4% avg 30-day return with a 10000% 30-day win rate. InsiderAlpha rates the track record at 5/5 stars.

Where can I see all of SIEGALL CLAY B's SEC filings?

All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.

SIEGALL CLAY B — SEC Form 4 Insider Trading Activity