Omnicom Group Inc.
US ˙ NYSE ˙ US6819191064

SecurityOMC / Omnicom Group Inc.
InstitutionWhittier Trust Co
Latest Disclosed Ownership2,984 shares
Latest Disclosed Value $ 226,665
Whittier Trust Co reports 6.57% increase in ownership of OMC / Omnicom Group Inc.

On April 28, 2026 - Whittier Trust Co filed a 13F-HR form disclosing ownership of 2,984 shares of Omnicom Group Inc. (US:OMC) valued at $224,725 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 2,800 shares of Omnicom Group Inc.. This represents a change in shares of 6.57% during the quarter. The current value of the position is $220,040 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)
2026-04-28 2026-03-31 13F OMNICOM GROUP common 681919106 2,984 184 6.57 227 1.80 0.0026
2026-01-26 2025-12-31 13F OMNICOM GROUP common 681919106 2,800 2,517 889.40 223 957.14 0.0024
2025-10-31 2025-09-30 13F OMNICOM GROUP common 681919106 283 -83 -22.68 22 -19.23 0.0002
2025-07-30 2025-06-30 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 366 -40 -9.85 26 -21.21 0.0003
2025-05-02 2025-03-31 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 406 -83 -16.97 34 -21.43 0.0005
2025-02-11 2024-12-31 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 489 323 194.58 42 147.06 0.0006
2024-10-21 2024-09-30 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 166 0 0.00 17 21.43 0.0002
2024-07-29 2024-06-30 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 166 166 15 0.0002
2024-05-02 2024-03-31 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 0 -31 -100.00 0 -100.00
2024-01-11 2023-12-31 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 31 -39 -55.71 3 -60.00 0.0000
2023-10-27 2023-09-30 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 70 39 125.81 5 150.00 0.0001
2023-07-24 2023-06-30 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 31 0 0.00 3 0.00 0.0001
2023-04-21 2023-03-31 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 31 0 0.00 3 0.00 0.0001
2023-01-25 2022-12-31 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 31 -4 -11.43 3 0.00 0.0000
2022-10-21 2022-09-30 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 35 -70 -66.67 2 -71.43 0.0000
2022-07-28 2022-06-30 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 105 70 200.00 7 133.33 0.0001
2022-04-29 2022-03-31 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 35 4 12.90 3 50.00 0.0001
2022-01-19 2021-12-31 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 31 0 0.00 2 0.00 0.0000
2021-11-01 2021-09-30 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 31 0 0.00 2 0.00 0.0000
2021-07-29 2021-06-30 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 31 0 0.00 2 0.00 0.0000
2021-04-26 2021-03-31 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 31 -66 -68.04 2 -66.67 0.0000
2021-01-29 2020-12-31 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 97 0 0.00 6 20.00 0.0001
2020-10-30 2020-09-30 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 97 0 0.00 5 -16.67 0.0001
2020-07-10 2020-06-30 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 97 0 0.00 6 0.00 0.0002
2020-04-27 2020-03-31 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 97 7 7.78 6 -14.29 0.0002
2020-01-31 2019-12-31 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 90 -75 -45.45 7 -46.15 0.0002
2019-10-18 2019-09-30 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 165 81 96.43 13 85.71 0.0004
2019-07-23 2019-06-30 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 84 0 0.00 7 16.67 0.0002
2019-04-29 2019-03-31 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 84 9 12.00 6 20.00 0.0002
2019-02-07 2018-12-31 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 75 0 0.00 5 0.00 0.0002
2018-10-23 2018-09-30 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 75 0 0.00 5 -16.67 0.0002
2018-07-27 2018-06-30 13F/A-1 OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 75 0 0.00 6 20.00 0.0002
2018-07-20 2018-06-30 13F OMNICOM GROUP INC COM US LARGE CAP EQUITIES 681919106 75 0 5
2018-05-01 2018-03-31 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 75 0 0.00 5 0.00 0.0002
2018-02-07 2017-12-31 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 75 0 0.00 5 -16.67 0.0002
2017-10-23 2017-09-30 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 75 -6 -7.41 6 -14.29 0.0002
2017-07-20 2017-06-30 13F OMNICOM GROUP INC COM US LARGE-CAP EQUITIES 681919106 81 -1,054 -92.86 7 -92.86 0.0003
2017-04-26 2017-03-31 13F OMNICOM GROUP US LARGE CAP EQUITIES 681919106 1,135 1,060 1,413.33 98 1,533.33 0.0040
2017-01-18 2016-12-31 13F OMNICOM GROUP INC COM US LARGE CAP EQUITIES 681919106 75 0 0.00 6 0.00 0.0003
2016-11-10 2016-09-30 13F OMNICOM GROUP INC COM US LARGE CAP EQUITIES 681919106 75 0 0.00 6 0.00 0.0003
2016-07-28 2016-06-30 13F OMNICOM GROUP INC COM US LARGE CAP EQUITIES 681919106 75 0 0.00 6 0.00 0.0003
2016-04-28 2016-03-31 13F OMNICOM GROUP INC COM US LARGE CAP EQUITIES 681919106 75 0 0.00 6 0.00 0.0003
2016-02-10 2015-12-31 13F OMNICOM GROUP INC COM US LARGE CAP EQUITIES 681919106 75 0 0.00 6 20.00 0.0003
2015-11-12 2015-09-30 13F OMNICOM GROUP INC COM US LARGE CAP EQUITIES 681919106 75 0 0.00 5 0.00 0.0002
2015-08-13 2015-06-30 13F OMNICOM GROUP INC COM US LARGE CAP EQUITIES 681919106 75 -113 -60.11 5 -66.67 0.0002
2015-05-05 2015-03-31 13F OMNICOM GROUP INC COM US LARGE CAP EQUITIES 681919106 188 188 0.00 15 0.0007
2015-02-04 2014-12-31 13F OMNICOM GROUP INC COM US LARGE CAP EQUITIES 681919106 0 -75 -100.00 0 -100.00
2014-11-07 2014-09-30 13F OMNICOM GROUP INC COM US LARGE CAP EQUITIES 681919106 75 0 0.00 5 0.00 0.0002
2014-08-04 2014-06-30 13F OMNICOM GROUP INC COM US LARGE CAP EQUITIES 681919106 75 0 0.00 5 0.00 0.0002
2014-05-01 2014-03-31 13F OMNICOM GROUP INC COM US LARGE CAP EQUITIES 681919106 75 0 0.00 5 -16.67 0.0003
2014-02-05 2013-12-31 13F OMNICOM GROUP INC COM US LARGE CAP EQUITIES 681919106 75 0 0.00 6 20.00 0.0003
2013-11-18 2013-09-30 13F OMNICOM GROUP COM 681919106 75 0 0.00 5 0.00 0.0003
2013-08-14 2013-06-30 13F OMNICOM GROUP COM 681919106 75 75 5 0.0003
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.