Labcorp (LH): Sen. Alan Armstrong disclosed a purchase

$1,001–$15,000
Reported range · official band, not an exact amount: 116 days
Disclosure lag

Traded: Mar 27, 2026
Disclosed: Jul 21, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

Jan 28, 2026Company filing · Form 8-K · Material agreement, New debtSigned an important agreement, and took on new debt or obligations
Jan 28, 2026CongressDisclosed purchase of LH — reported range $1,001 - $15,000
Feb 4, 2026CongressDisclosed purchase of LH — reported range $1,001 - $15,000
Feb 6, 2026Company filing · Form 8-K · Executive change, Reg FDChanged a top executive or board member, and shared information with investors“Labcorp Holdings Inc. (the “Company”) today announced that on February 6, 2026, the Company’s Board of Directors (the “Board”) appointed John H. Sampson, M.D., Ph.D., as a member of the Board, effective February 9, 2026.”
Feb 9, 2026InsiderOfficer sold ~$24K of LH shares in the open market
Feb 10, 2026InsiderOfficer sold ~$25K of LH shares in the open market
Feb 11, 2026InsiderCEO sold ~$1.5M of LH shares in the open market
Feb 11, 2026CongressDisclosed purchase of LH — reported range $1,001 - $15,000
Feb 12, 2026InsiderOfficer sold ~$25K of LH shares in the open market
Feb 17, 2026Company filing · Form 8-K · ResultsReported its results
Feb 19, 2026InsiderOfficer sold ~$185K of LH shares in the open market
Feb 24, 2026InsiderOfficer sold ~$429K of LH shares in the open market
Feb 27, 2026InsiderOfficer sold ~$156K of LH shares in the open market
Mar 3, 2026Insider · Their largest sale since 2018CEO sold ~$2.44M of LH shares in the open market
Mar 20, 2026Company filing · Form 8-K · Material agreement, New debtSigned an important agreement, and took on new debt or obligations
Mar 26, 20265% stakeThe Vanguard Group reported a passive stake (13G)
Mar 27, 2026 · this disclosureCongressDisclosed purchase of LH — reported range $1,001 - $15,000

What came next

Mar 27, 2026Insider · 2 peopleInsiders: 2 sales (~$660K)
Apr 28, 20265% stakeVanguard Capital Management reported a passive stake (13G) of 7.5%
Apr 30, 2026Company filing · Form 8-K · ResultsReported its results
May 11, 2026InsiderCEO sold ~$1.5M of LH shares in the open market
Jun 8, 2026InsiderOfficer sold ~$201K of LH shares in the open market
Jul 2, 2026Insider · 2 peopleInsiders: 2 sales (~$93K)

How to read Senate eFD periodic transaction report

The STOCK Act is a 2012 US law that requires members of Congress, and some senior staff, to publicly report their stock trades, and those of their spouse and dependent children, within 45 days.

Full guide: What is the STOCK Act?

What else is on file for Labcorp

For Labcorp, OQRO holds 5 insider filings (SEC Form 4 or Form 144), 5 Congress trade reports and 13 fund holdings reports (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its LH page.

Other recent filings by Sen. Alan Armstrong

The full history of Sen. Alan Armstrong is on the profile page.

Other disclosures at Labcorp

Everything OQRO holds on this company is on its LH page.

Labcorp (LH)Sen. Alan Armstrong disclosed a purchase $1K–$15K