$LH

Summy Amy B. sold $283K of LH

Summy Amy B. (EVP, Chief Marketing Officer) sold 924 shares of LABCORP HOLDINGS INC. (LH) at $306.74 ($0.28M total) on 2026-08-04.

Original reporting
SEC EDGAR · Summy Amy B.
Published Aug 6, 2026, 12:26 PM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Aug 6, 2026, 12:36 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
$LH
Neutral
high confidence
Mentioned
$LH
Relevance
4/10
AlphAI data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$LHNeutralLow
01

Why it matters

The disclosure updates insider trading records but does not introduce new company performance, guidance, or regulatory developments.

02

Market read

Traders may note the sale for sentiment, but it is unlikely to change valuation without additional corroborating news.

03

What to watch

The article does not indicate whether the sale was tax-related, diversification-driven, or part of a broader pattern; also no 10b5-1 plan was used per the text.

Relevance 4/10Novelty 3/10Timing: filed 2026-08-06, transaction dated 2026-08-04

Background

SEC Form 4 insider transaction for LABCORP HOLDINGS INC. (LH) by EVP and Chief Marketing Officer Summy Amy B.

Company-level read

Ticker impact

$LHNeutralHigh confidence
Context

Form 4 shows LH CMO Summy Amy B. sold 924 shares at $306.74 on 2026-08-04, totaling $283,427.76.

Expected impact

Minimal near-term impact; any reaction is likely noise unless paired with other disclosures.

Evidence & confidence

This is a single insider sale, not a buy, not tied to new company guidance, and the filing provides no new operational or financial information.

Market effects

No clear sector read-through from a single marketing executive’s sale.

None.

None.

Counterpoint

Insider sales can sometimes precede negative developments, but this filing lacks any accompanying company-specific catalyst.

Key entities

  • LABCORP HOLDINGS INC.

    Company subject of the Form 4 insider sale disclosure.

  • Summy Amy B.

    EVP, Chief Marketing Officer who sold 924 shares.

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.

Related articles

$RDNTHighAI 8/10

Testing & Diagnostics Services Stocks Q2 Results: Benchmarking Guardant Health (NASDAQ:GH)

Guardant Health, RadNet (NASDAQ:RDNT), Labcorp (NYSE:LH), NeoGenomics (NASDAQ:NEO), and Quest (NYSE:DGX) reported Q2 results. RadNet saw 25% revenue growth, beating estimates. Labcorp's revenue grew 5.8%, meeting expectations but underperforming peers. NeoGenomics and Quest both beat estimates with 11.2% and 10.2% revenue growth, respectively. Stocks have risen since reporting.

$LHMedAI 8/10

Labcorp to offer FDA-cleared Elecsys pTau-217 Alzheimer's test

Labcorp (LH) will offer the FDA-cleared Elecsys pTau-217 blood test, developed by Roche Diagnostics, to detect Alzheimer's-related amyloid pathology in individuals aged 55+ with cognitive decline. This is the first FDA-cleared single-biomarker test for both ruling in and out amyloid pathology, setting it apart from other options.

$LHMed

Why is Labcorp stock sliding today?

Labcorp (LH) stock fell 4.3% to $307.43 after its 2026 Investor Day, where it reaffirmed revenue guidance of $14.71B-$14.83B and EPS growth of 8.5%-11.5%. The market expected a guidance raise, and the lack of upside led to profit-taking. Broader market declines also pressured the stock.