Booth Bruce sold $56.5M of KYMR (indirect holdings)

Booth Bruce sold 513,245 indirectly-held shares of Kymera Therapeutics, Inc. (KYMR) at an average of $110.01 ($105.78–$118.66, $56.46M total) across 30 trades over 2026-06-26 to 2026-06-29 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · Booth Bruce
Published Jun 30, 2026, 9:30 PM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Jun 30, 2026, 9:32 PM 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
7/10
AlphAI data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$KYMRNeutralLow
01

Why it matters

The disclosure provides a concrete datapoint on insider selling size and timing, but it does not include new operational/clinical/regulatory information about Kymera Therapeutics.

02

Market read

A $56.46M director sale under 10b5-1 is a sentiment datapoint, but it is unlikely to be a standalone fundamental catalyst.

03

What to watch

Traders may over-weight insider selling; the key incremental signal is whether there are additional filings (other insiders, new grants, or company-specific catalysts) around the same period.

Relevance 7/10Novelty 5/10Timing: Filed June 30 after sales executed June 26–29

Background

SEC Form 4 reports an insider transaction by Kymera Therapeutics director Booth Bruce, with ownership form listed as indirect and executed under a Rule 10b5-1 plan.

Company-level read

Ticker impact

$KYMRNeutralMedium confidence
Context

Kymera Therapeutics director Booth Bruce sold $56.46M of KYMR via an open-market sale under a pre-arranged 10b5-1 plan (513,245 shares).

Expected impact

Likely limited, short-lived sentiment impact; follow-through depends on broader fundamentals and any concurrent company news.

Evidence & confidence

Form 4 discloses a sizable sale ($56.46M) and confirms it was pre-arranged (10b5-1), which typically reduces the signal of new negative information.

Market effects

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

None indicated.

None indicated.

Counterpoint

Because the sale was under a pre-arranged 10b5-1 plan, it may reflect routine liquidity needs rather than a change in outlook.

Key entities

  • Kymera Therapeutics, Inc.

    Subject of the Form 4 insider transaction; director Booth Bruce sold shares under a 10b5-1 plan.

  • Booth Bruce

    Director who executed the open-market sale of KYMR shares (indirect holdings).

  • Rule 10b5-1 plan

    Pre-arranged plan cited in the filing, typically reducing interpretive weight of the sale.

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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