Omnicom Group Inc.
US ˙ NYSE ˙ US6819191064

SecurityOMC / Omnicom Group Inc.
InstitutionSilvercrest Asset Management Group Llc
Latest Disclosed Ownership7,730 shares
Latest Disclosed Value $ 582,146
Silvercrest Asset Management Group Llc reports 41.31% decrease in ownership of OMC / Omnicom Group Inc.

On May 15, 2026 - Silvercrest Asset Management Group Llc filed a 13F-HR form disclosing ownership of 7,730 shares of Omnicom Group Inc. (US:OMC) valued at $582,146 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 13,172 shares of Omnicom Group Inc.. This represents a change in shares of -41.31% during the quarter. The current value of the position is $570,010 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 INC COM COM 681919106 7,730 -5,442 -41.31 582 -45.25 0.0042
2026-02-17 2025-12-31 13F OMNICOM GROUP COM 681919106 13,172 310 2.41 1,064 1.43 0.0073
2025-11-14 2025-09-30 13F OMNICOM GROUP INC COM COM 681919106 12,862 0 0.00 1,049 13.30 0.0069
2025-08-14 2025-06-30 13F OMNICOM GROUP COM 681919106 12,862 -1,890 -12.81 925 -24.37 0.0062
2025-05-15 2025-03-31 13F OMNICOM GROUP COM 681919106 14,752 680 4.83 1,223 1.07 0.0088
2025-02-14 2024-12-31 13F OMNICOM GROUP COM 681919106 14,072 0 0.00 1,211 -16.78 0.0081
2024-11-14 2024-09-30 13F OMNICOM GROUP INC COM COM 681919106 14,072 0 0.00 1,455 15.21 0.0099
2024-08-15 2024-06-30 13F/A-1 OMNICOM GROUP INC COM COM 681919106 14,072 -200 -1.40 1,262 -8.55 0.0087
2024-08-14 2024-06-30 13F OMNICOM GROUP INC COM COM 681919106 28,144 13,872 2,525 0.0087
2024-05-15 2024-03-31 13F OMNICOM GROUP INC COM COM 681919106 14,272 -9 -0.06 1,381 11.74 0.0093
2024-02-14 2023-12-31 13F OMNICOM GROUP INC COM COM 681919106 14,281 -114 -0.79 1,235 15.21 0.0087
2023-11-14 2023-09-30 13F OMNICOM GROUP INC COM COM 681919106 14,395 0 0.00 1,072 -21.69 0.0081
2023-08-14 2023-06-30 13F OMNICOM GROUP INC COM COM 681919106 14,395 809 5.95 1,370 6.87 0.0098
2023-05-15 2023-03-31 13F OMNICOM GROUP INC COM COM 681919106 13,586 -693 -4.85 1,282 10.05 0.0097
2023-02-14 2022-12-31 13F OMNICOM GROUP INC COM COM 681919106 14,279 -725 -4.83 1,165 22.91 0.0090
2022-11-14 2022-09-30 13F OMNICOM GROUP INC COM COM 681919106 15,004 0 0.00 947 -0.73 0.0078
2022-08-15 2022-06-30 13F OMNICOM GROUP INC COM COM 681919106 15,004 0 0.00 954 -25.12 0.0073
2022-05-16 2022-03-31 13F OMNICOM GROUP INC COM COM 681919106 15,004 -790 -5.00 1,274 10.11 0.0083
2022-02-14 2021-12-31 13F OMNICOM GROUP INC COM COM 681919106 15,794 -1,363 -7.94 1,157 -6.92 0.0073
2021-11-15 2021-09-30 13F OMNICOM GROUP INC COM COM 681919106 17,157 -691 -3.87 1,243 -12.96 0.0084
2021-08-16 2021-06-30 13F OMNICOM GROUP INC COM COM 681919106 17,848 -1,007 -5.34 1,428 2.15 0.0094
2021-05-17 2021-03-31 13F OMNICOM GROUP INC COM COM 681919106 18,855 -2,720 -12.61 1,398 3.86 0.0094
2021-02-16 2020-12-31 13F OMNICOM GROUP INC COM COM 681919106 21,575 -2,000 -8.48 1,346 15.34 0.0098
2020-11-16 2020-09-30 13F OMNICOM GROUP INC COM COM 681919106 23,575 185 0.79 1,167 -8.61 0.0100
2020-08-14 2020-06-30 13F OMNICOM GROUP INC COM COM 681919106 23,390 -85 -0.36 1,277 -0.93 0.0113
2020-05-15 2020-03-31 13F OMNICOM GROUP INC COM COM 681919106 23,475 -3,520 -13.04 1,289 -41.06 0.0138
2020-02-14 2019-12-31 13F OMNICOM GROUP INC COM COM 681919106 26,995 -504 -1.83 2,187 1.58 0.0170
2019-11-14 2019-09-30 13F OMNICOM GROUP INC COM COM 681919106 27,499 -2,872 -9.46 2,153 -13.50 0.0178
2019-08-14 2019-06-30 13F OMNICOM GROUP INC COM COM 681919106 30,371 -30 -0.10 2,489 12.17 0.0233
2019-05-15 2019-03-31 13F OMNICOM GROUP INC COM COM 681919106 30,401 -3,135 -9.35 2,219 -9.65 0.0218
2019-02-14 2018-12-31 13F OMNICOM GROUP INC COM COM 681919106 33,536 -995 -2.88 2,456 4.60 0.0271
2018-11-14 2018-09-30 13F OMNICOM GROUP INC COM COM 681919106 34,531 -2,496 -6.74 2,348 -16.86 0.0213
2018-08-14 2018-06-30 13F OMNICOM GROUP INC COM COM 681919106 37,027 -1,804 -4.65 2,824 0.07 0.0264
2018-05-15 2018-03-31 13F OMNICOM GROUP INC COM COM 681919106 38,831 -9,557 -19.75 2,822 -19.92 0.0275
2018-02-14 2017-12-31 13F OMNICOM GROUP INC COM COM 681919106 48,388 -162,229 -77.03 3,524 -77.41 0.0328
2017-11-14 2017-09-30 13F OMNICOM GROUP INC COM COM 681919106 210,617 -218,005 -50.86 15,601 -56.09 0.1555
2017-08-14 2017-06-30 13F OMNICOM GROUP INC COM COM 681919106 428,622 -2,440 -0.57 35,533 -4.38 0.3804
2017-05-15 2017-03-31 13F OMNICOM GROUP INC COM COM 681919106 431,062 -3,789 -0.87 37,161 0.41 0.3977
2017-02-14 2016-12-31 13F OMNICOM GROUP INC COM COM 681919106 434,851 -307,077 -41.39 37,010 -41.31 0.4145
2016-11-14 2016-09-30 13F OMNICOM GROUP INC COM COM 681919106 741,928 -5,661 -0.76 63,064 3.52 0.7571
2016-08-15 2016-06-30 13F OMNICOM GROUP INC COM COM 681919106 747,589 9,289 1.26 60,921 -0.86 0.7746
2016-05-16 2016-03-31 13F OMNICOM GROUP INC COM COM 681919106 738,300 -19,503 -2.57 61,449 7.18 0.8466
2016-02-16 2015-12-31 13F OMNICOM GROUP INC COM COM 681919106 757,803 -1,118 -0.15 57,335 14.64 0.7942
2015-11-16 2015-09-30 13F OMNICOM GROUP INC COM COM 681919106 758,921 -24,035 -3.07 50,013 -8.08 0.7612
2015-08-14 2015-06-30 13F OMNICOM GROUP INC COM COM 681919106 782,956 65,604 9.15 54,408 -2.74 0.7270
2015-05-15 2015-03-31 13F OMNICOM GROUP INC COM COM 681919106 717,352 -3,015 -0.42 55,939 0.24 0.7939
2015-02-17 2014-12-31 13F OMNICOM GROUP INC COM COM 681919106 720,367 12,316 1.74 55,807 14.46 0.8091
2014-11-14 2014-09-30 13F OMNICOM GROUP INC COM COM 681919106 708,051 20,633 3.00 48,756 -0.41 0.7530
2014-08-14 2014-06-30 13F OMNICOM GROUP INC COM COM 681919106 687,418 3,914 0.57 48,958 -1.34 0.7343
2014-05-15 2014-03-31 13F OMNICOM GROUP INC COM COM 681919106 683,504 22,947 3.47 49,623 1.01 0.7898
2014-02-14 2013-12-31 13F OMNICOM GROUP INC COM COM 681919106 660,557 -373 -0.06 49,125 17.16 0.8148
2013-11-14 2013-09-30 13F OMNICOM GROUP INC COM COM 681919106 660,930 -210,119 -24.12 41,930 -23.43 0.8057
2013-08-14 2013-06-30 13F OMNICOM GROUP INC COM COM 681919106 871,049 871,049 54,763 1.1561
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.