SIEGALL CLAY B purchased $250K of STTK
SIEGALL CLAY B purchased 62,500 shares of Shattuck Labs, Inc. (STTK) at $4.00 ($0.25M total) on 2026-06-09.
How this was made
The 30-second read
Why it matters
A director’s open-market purchase (no 10b5-1 plan stated) adds incremental bullish sentiment, but it does not change known business fundamentals by itself.
Market read
Traders may treat the filing as a small sentiment input, but it is unlikely to be a primary driver versus upcoming company-specific catalysts.
What to watch
The article doesn’t disclose why the director bought or whether other insiders/large holders acted; without clinical/regulatory updates, price reaction may be muted.
Background
This is an SEC Form 4 insider transaction disclosure for Shattuck Labs, Inc. (STTK).
Ticker impact
Director SIEGALL CLAY B bought 62,500 shares of Shattuck Labs at $4.00/share via an open-market purchase disclosed on Form 4.
Likely limited near-term impact; any effect should be small and fade unless followed by additional buys or company catalysts.
Form 4 provides a new, primary-source transaction (new information), but insider buys alone rarely create durable repricing without accompanying operational/regulatory/clinical updates.
Market effects
No sector-wide read-across; this is company-specific ownership activity.
None indicated.
None indicated.
Counterpoint
Insider buys can be routine (tax/portfolio rebalancing) and may not signal improved fundamentals, especially without follow-through.
Key entities
- issuerShattuck Labs, Inc.
Subject of the Form 4 insider transaction disclosure.
- insiderSIEGALL CLAY B
Director who purchased 62,500 shares on 2026-06-09.




