Omnicom Group Inc.
US ˙ NYSE ˙ US6819191064

SecurityOMC / Omnicom Group Inc.
InstitutionAmundi
Latest Disclosed Ownership971,699 shares
Latest Disclosed Value $ 73,179,982
Amundi reports 29.24% decrease in ownership of OMC / Omnicom Group Inc.

On May 15, 2026 - Amundi filed a 13F-HR form disclosing ownership of 971,699 shares of Omnicom Group Inc. (US:OMC) valued at $73,178,652 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,373,317 shares of Omnicom Group Inc.. This represents a change in shares of -29.24% during the quarter. The current value of the position is $71,653,084 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F OMNICOM GROUP COM 681919106 971,699 -401,618 -29.24 73,180 -34.01 0.0084
2026-02-17 2025-12-31 13F OMNICOM GROUP COM 681919106 1,373,317 394,357 40.28 110,897 43.52 0.0301
2025-11-14 2025-09-30 13F OMNICOM GROUP COM 681919106 978,960 -876,117 -47.23 77,272 -47.72 0.0248
2025-08-13 2025-06-30 13F OMNICOM GROUP COM 681919106 1,855,077 240,219 14.88 147,801 13.72 0.0510
2025-05-15 2025-03-31 13F OMNICOM GROUP COM 681919106 1,614,858 -78,398 -4.63 129,966 -10.12 0.0473
2025-02-07 2024-12-31 13F Omnicom Group COM 681919106 1,693,256 72,924 4.50 144,603 -13.18 0.0503
2024-11-13 2024-09-30 13F OMNICOM GROUP COM 681919106 1,620,332 -14,909 -0.91 166,563 13.68 0.0614
2024-08-14 2024-06-30 13F OMNICOM GROUP COM 681919106 1,635,241 -320,201 -16.37 146,521 -21.64 0.0562
2024-05-15 2024-03-31 13F OMNICOM GROUP COM 681919106 1,955,442 -314,261 -13.85 186,991 -5.25 0.0804
2024-02-14 2023-12-31 13F OMNICOM GROUP COM 681919106 2,269,703 -618,208 -21.41 197,342 -8.27 0.0888
2023-11-14 2023-09-30 13F OMNICOM GROUP COMMSTCK 681919106 2,887,911 -25,809 -0.89 215,124 -22.55 0.1057
2023-08-14 2023-06-30 13F OMNICOM GROUP COMMSTCK 681919106 2,913,720 51,837 1.81 277,759 3.19 0.1405
2023-05-15 2023-03-31 13F OMNICOM GROUP COMMSTCK 681919106 2,861,883 -85,749 -2.91 269,177 10.41 0.1451
2023-02-14 2022-12-31 13F OMNICOM GROUP COM 681919106 2,947,632 -303,521 -9.34 243,790 16.60 0.1337
2022-11-14 2022-09-30 13F OMNICOM GROUP COM 681919106 3,251,153 511,644 18.68 209,076 20.25 0.1240
2022-09-02 2022-06-30 13F/A-1 OMNICOM GROUP COM 681919106 2,739,509 50,255 1.87 173,861 -21.99 0.1395
2022-08-15 2022-06-30 13F OMNICOM GROUP COM 681919106 2,739,509 50,255 173,861 0.0092
2022-05-16 2022-03-31 13F OMNICOM GROUP COM 681919106 2,689,254 136,972 5.37 222,882 19.19 0.1509
2022-02-14 2021-12-31 13F Omnicom Group COM 681919906 2,552,282 -599,640 -19.02 186,993 -18.10 0.1185
2022-02-14 2021-12-31 13F OMNICOM GROUP COM 681919106 760,401 59,989
2021-11-15 2021-09-30 13F Omnicom Group COM 681919106 3,151,922 95,263 3.12 228,328 93,477.05 0.1600
2021-08-16 2021-06-30 13F Omnicom Group COM 681919106 3,056,659 3,056,659 245 0.1698
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.