Compounder

Omnicom Group

Held by 4 superinvestors (OMC).

Educational data only — not investment advice. 13F positions are self-reported and can lag up to 45 days.

This quarter1 opened2 added1 trimmed1 exited
TickerOMC
Holder count4
Total value held$156.0M
Largest holderJohn Rogers
External
Ownership overview

Omnicom Group (OMC) is held by 4 of the superinvestors tracked on Compounder, with a combined $156.0M in reported 13F value. The largest position belongs to John Rogers, where it makes up 0.9% of the portfolio.

Other notable holders by value include Harry Burn (2.1% of its book), Robert Olstein (1.9% of its book) and Ray Dalio (0.0% of its book).

Over the latest quarter, 1 of the tracked filers opened a new position in OMC, 2 added to existing ones, 1 trimmed, and 1 sold out entirely.

Holder counts and values reflect the most recent SEC Form 13F filings, through the quarter ended 2026-03-31. Source: SEC EDGAR. A 13F shows only long US-listed positions and can lag the real portfolio by up to 45 days, so this is disclosed long ownership, not a complete picture.

Holders over time

Superinvestors holding this security over the last 8 quarters: 2 → 4.

Early quarters may understate holder counts due to data backfill — read the slope with care.

Superinvestors Holding This Security
  • Value$83.2MWeight (prev→now)0.9% 0.9%
  • Value$63.5MWeight (prev→now)New · 2.1%
  • Value$8.9MWeight (prev→now)1.8% 1.9%
  • Value$402,532Weight (prev→now)0.2% 0.0%
Exited this quarter (1)

Sources· SEC EDGAR 13F as of 2026-05-15

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