Omnicom Group (OMC)Sen. Alan Armstrong disclosed a purchase $1K–$15K

$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.

1. Jan 15, 2026CongressDisclosed partial sale of OMC — reported range $1,001 - $15,000
2. Jan 28, 2026Company filing · Form 8-K · Executive change, Shareholder voteChanged a top executive or board member, and held a shareholder vote“On January 28, 2026, the shareholders of Omnicom Group Inc. (the “Company”) approved the Omnicom 2026 Incentive Award Plan (the “Plan”).”
3. Jan 29, 2026CongressDisclosed sale of OMC — reported range $1,001 - $15,000
4. Feb 18, 2026Company filing · Form 8-K · Results, Reg FDReported its results, and shared information with investors
5. Mar 2, 2026Company filing · Form 8-K · Material agreement, New debtSigned an important agreement, and took on new debt or obligations
6. Mar 2, 2026InsiderDirector sold ~$115K of OMC shares in the open market
7. Mar 3, 2026Federal contract · $13.9M obligatedDepartment of Defense awarded Omnicom Group: $13.9M obligated to date
8. Mar 9, 2026Government · Federal Register noticeGranting of Requests for Early Termination of the Waiting Period Under the Premerger Notification Rules
9. Mar 12, 2026Federal contract · $30.5M obligatedDepartment of Defense awarded Omnicom Group: $30.5M obligated to date
10. Mar 13, 2026CongressDisclosed purchase of OMC — reported range $1,001 - $15,000
11. Mar 27, 2026 · this disclosureCongressDisclosed purchase of OMC — reported range $1,001 - $15,000

What came next

1. Mar 27, 20265% stakeThe Vanguard Group reported a passive stake (13G)
2. Apr 14, 2026CongressDisclosed sale of OMC — reported range $1,001 - $15,000
3. Apr 28, 2026Company filing · Form 8-K · Results, Reg FDReported its results, and shared information with investors
4. Apr 29, 20265% stakeVanguard Portfolio Management reported a passive stake (13G) of 5.2%
5. Apr 30, 20265% stakeVanguard Capital Management reported a passive stake (13G) of 8.2%
6. May 12, 20265% stakeSTATE STREET CORPORATION reported a passive stake (13G) of 9.7%

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 Omnicom Group

For Omnicom Group, OQRO holds 1 insider filing (SEC Form 4 or Form 144), 1 Congress trade report, 14 fund holdings reports (13F) and 1 federal contract award 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 OMC page.

Other recent filings by Sen. Alan Armstrong

• Senate eFD periodic transaction report at Williams Companies (WMB)Sep 17, 2026
• Senate eFD periodic transaction report at Williams Companies (WMB)Sep 17, 2026
• Senate eFD periodic transaction report at KKR & Co. (KKR)Jul 21, 2026
• Senate eFD periodic transaction report at Globe Life (GL)Jul 21, 2026
• Senate eFD periodic transaction report at Copart (CPRT)Jul 21, 2026

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

How this filing works

• The STOCK Act

Other disclosures at Omnicom Group

• USAspending.gov award recordSep 29, 2026
• SEC Form 4Aug 26, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 14, 2026
• SEC Form 13F-HRAug 14, 2026

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