옴니콤 그룹 주식회사
US ˙ NYSE ˙ US6819191064

SecurityOMC / Omnicom Group Inc.
InstitutionCerity Partners LLC
Latest Disclosed Ownership327,071 shares
Latest Disclosed Value $ 24,631,789
Cerity Partners LLC reports 58.35% increase in ownership of OMC / Omnicom Group Inc.

On May 15, 2026 - Cerity Partners LLC filed a 13F-HR form disclosing ownership of 327,071 shares of Omnicom Group Inc. (US:OMC) valued at $24,631,717 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 206,553 shares of Omnicom Group Inc.. This represents a change in shares of 58.35% during the quarter. The current value of the position is $24,736,380 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.

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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 327,071 120,518 58.35 24,632 47.68 0.0173
2026-02-11 2025-12-31 13F OMNICOM GROUP COM 681919106 206,553 151,824 277.41 16,679 273.80 0.0243
2025-10-22 2025-09-30 13F OMNICOM GROUP COM 681919106 54,729 23,853 77.25 4,462 100.54 0.0072
2025-08-13 2025-06-30 13F OMNICOM GROUP Stock 681919106 30,876 -8,671 -21.93 2,226 -32.23 0.0040
2025-04-30 2025-03-31 13F OMNICOM GROUP Stock 681919106 39,547 -12,916 -24.62 3,283 -30.21 0.0067
2025-02-13 2024-12-31 13F OMNICOM GROUP Stock 681919106 52,463 3,865 7.95 4,705 -6.46 0.0102
2024-11-12 2024-09-30 13F OMNICOM GROUP COM 681919106 48,598 15,631 47.41 5,030 70.07 0.0111
2024-08-13 2024-06-30 13F OMNICOM GROUP COM 681919106 32,967 11,150 51.11 2,957 40.14 0.0078
2024-05-14 2024-03-31 13F OMNICOM GROUP Stock 681919106 21,817 10,396 91.03 2,111 113.56 0.0056
2024-01-26 2023-12-31 13F OMNICOM GROUP Stock 681919106 11,421 1,397 13.94 988 32.44 0.0032
2023-11-14 2023-09-30 13F OMNICOM GROUP COM 681919106 10,024 -6,596 -39.69 747 -52.81 0.0036
2023-08-14 2023-06-30 13F OMNICOM GROUP Stock 681919106 16,620 4,914 41.98 1,582 43.21 0.0062
2023-05-11 2023-03-31 13F OMNICOM GROUP COM 681919106 11,706 1,552 15.28 1,104 33.33 0.0026
2023-02-15 2022-12-31 13F OMNICOM GROUP Stock 681919106 10,154 10,154 829 0.0053
2020-05-14 2020-03-31 13F OMNICOM GROUP COM 681919106 0 -6,116 -100.00 0 -100.00
2020-02-14 2019-12-31 13F OMNICOM GROUP COM 681919106 6,116 6,116 496 0.0253
2018-11-15 2018-09-30 13F OMNICOM GROUP COM 681919106 0 -3,236 -100.00 0 -100.00
2018-08-15 2018-06-30 13F OMNICOM GROUP COM 681919106 3,236 3,236 247 0.0182
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.