Booth Bruce sold $44.0M of KYMR (indirect holdings)

Booth Bruce sold 398,765 indirectly-held shares of Kymera Therapeutics, Inc. (KYMR) at an average of $110.31 ($99.98–$118.60, $43.99M total) across 30 trades over 2026-06-23 to 2026-06-25 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · Booth Bruce
Published Jun 26, 2026, 1:55 AM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Jun 26, 2026, 2:02 AM UTC. Informational, not investment advice.
How this was made
AlphAI summarizes source reporting and applies a structured AI analysis for relevance, timing, sentiment and ticker impact. Always verify material claims with the original publisher.
AlphAI market briefInsider activity
Primary signal
$KYMR
Neutral
medium confidence
Mentioned
$KYMR
Relevance
6/10
AlphAI data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$KYMRNeutralLow
01

Why it matters

The newest concrete fact is the disclosed sale size ($43.99M) and the fact it was executed under a pre-arranged 10b5-1 plan, which typically dampens interpretive weight versus unscheduled selling.

02

Market read

Traders may briefly reassess sentiment around KYMR due to the magnitude of the director sale, but the 10b5-1 framing limits fundamental implications.

03

What to watch

The filing notes indirect holdings and post-sale share count, but provides no reason for the sale; traders should avoid extrapolating fundamentals from the sale alone.

Relevance 6/10Novelty 5/10Timing: just filed after-hours (SEC Form 4 filed 2026-06-25T21:55:08-04:00)

Background

The article is an SEC Form 4 insider transaction for Kymera Therapeutics, Inc. (KYMR) by director Booth Bruce, executed 2026-06-23 to 2026-06-25.

Company-level read

Ticker impact

$KYMRNeutralMedium confidence
Context

Kymera Therapeutics director Booth Bruce sold $43.99M of KYMR via an open-market sale under a pre-arranged 10b5-1 plan (398,765 shares).

Expected impact

Near-term impact likely limited; any reaction may be sentiment-driven rather than thesis-changing.

Evidence & confidence

The filing is a primary Form 4 disclosure with sale size and pricing range, but it explicitly references a pre-arranged 10b5-1 plan, reducing inference of new negative information.

Market effects

No sector read-through; this is company-specific insider transaction disclosure.

None indicated.

None indicated.

Counterpoint

Because the sale is under a pre-arranged 10b5-1 plan, the transaction may reflect routine diversification rather than bearish expectations.

Key entities

  • Kymera Therapeutics, Inc.

    Subject of the Form 4 insider sale disclosure.

  • Booth Bruce

    Director who sold 398,765 shares of KYMR for ~$43.99M via open-market trades under a 10b5-1 plan.

Full insider trading history

This story covers one filing. See everything behind it: every insider buy and sell on record, 10b5-1 plans, late filings, and which officers and directors are trading.

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