Omnicom Group Inc.
US ˙ NYSE ˙ US6819191064

SecurityOMC / Omnicom Group Inc.
InstitutionHancock Whitney Corp
Latest Disclosed Ownership8,957 shares
Latest Disclosed Value $ 686,392
Hancock Whitney Corp reports 6.94% decrease in ownership of OMC / Omnicom Group Inc.

On May 15, 2026 - Hancock Whitney Corp filed a 13F-HR form disclosing ownership of 8,957 shares of Omnicom Group Inc. (US:OMC) valued at $674,552 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 9,625 shares of Omnicom Group Inc.. This represents a change in shares of -6.94% during the quarter. The current value of the position is $677,418 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 8,957 -668 -6.94 686 -11.71 0.0119
2026-02-17 2025-12-31 13F OMNICOM GROUP I COM 681919106 9,625 7,039 272.20 777 270.00 0.0140
2025-11-17 2025-09-30 13F OMNICOM GROUP COM 681919106 2,586 2,586 211 0.0038
2023-11-13 2023-06-30 13F/A-1 OMNICOM GROUP COM 681919106 0 -2,535 -100.00 0 -100.00
2023-08-10 2023-06-30 13F OMNICOM GROUP COM 681919106 0 -2,535 0 0.0000
2023-11-13 2023-03-31 13F/A-2 OMNICOM GROUP COM 681919106 2,535 2,535 239 0.0096
2023-05-16 2023-03-31 13F/A-1 OMNICOM GROUP COM 681919106 2,535 2,535 0 0.0051
2022-10-26 2022-09-30 13F OMNICOM GROUP COM 681919106 0 -24,338 -100.00 0 -100.00
2022-08-08 2022-06-30 13F OMNICOM GROUP COM 681919106 24,338 -358 -1.45 1,549 -26.10 0.0619
2022-05-12 2022-03-31 13F OMNICOM GROUP COM 681919106 24,696 24,696 2,096 0.0713
2021-11-04 2021-09-30 13F OMNICOM GROUP COM 681919106 0 -4,637 -100.00 0 -100.00
2021-08-09 2021-06-30 13F OMNICOM GROUP COM 681919106 4,637 20 0.43 371 8.48 0.0118
2021-05-14 2021-03-31 13F OMNICOM GROUP COM 681919106 4,617 0 0.00 342 18.75 0.0116
2021-02-09 2020-12-31 13F OMNICOM GROUP COM 681919106 4,617 4,617 288 0.0096
2020-07-30 2020-06-30 13F OMNICOM GROUP COM 681919106 0 -39,250 -100.00 0 -100.00
2020-05-08 2020-03-31 13F OMNICOM GROUP COM 681919106 39,250 3,994 11.33 2,155 -24.57 0.0845
2020-02-06 2019-12-31 13F OMNICOM GROUP COM 681919106 35,256 -500 -1.40 2,857 2.04 0.0921
2019-10-29 2019-09-30 13F OMNICOM GROUP COM 681919106 35,756 -416 -1.15 2,800 -5.53 0.0918
2019-08-29 2019-06-30 13F OMNICOM GROUP COM 681919106 36,172 6,156 20.51 2,964 35.28 0.0949
2019-05-13 2019-03-31 13F OMNICOM GROUP COM 681919106 30,016 -1,042 -3.36 2,191 -3.65 0.0703
2019-02-14 2018-12-31 13F OMNICOM GROUP COM 681919106 31,058 27,010 667.24 2,274 723.91 0.0768
2018-11-14 2018-09-30 13F OMNICOM GROUP COM 681919106 4,048 4,048 276 0.0078
2018-05-15 2018-03-31 13F OMNICOM COM 681919106 0 -5,720 -100.00 0 -100.00
2018-02-12 2017-12-31 13F OMNICOM COM 681919106 5,720 320 5.93 417 4.25 0.0173
2017-11-14 2017-09-30 13F OMNICOM COM 681919106 5,400 -1,316 -19.59 400 -28.19 0.0169
2017-08-11 2017-06-30 13F OMNICOM COM 681919106 6,716 -951 -12.40 557 -15.73 0.0235
2017-05-09 2017-03-31 13F OMNICOM COM 681919106 7,667 -5,950 -43.70 661 -42.97 0.0276
2017-02-14 2016-12-31 13F OMNICOM COM 681919106 13,617 -10 -0.07 1,159 0.09 0.0431
2016-11-08 2016-09-30 13F OMNICOM COM 681919106 13,627 -30 -0.22 1,158 4.04 0.0458
2016-08-09 2016-06-30 13F OMNICOM COM 681919106 13,657 907 7.11 1,113 4.90 0.0464
2016-06-07 2016-03-31 13F/A-1 OMNICOM COM 681919106 12,750 0 0.00 1,061 9.95 0.0446
2016-05-13 2016-03-31 13F OMNICOM COM 681919106 12,750 1,061
2016-02-12 2015-12-31 13F OMNICOM COM 681919106 12,750 12,750 0.00 965 0.0404
2015-11-16 2015-09-30 13F OMNICOM COM 681919106 0 -9,060 -100.00 0 -100.00
2015-08-13 2015-06-30 13F OMNICOM COM 681919106 9,060 0 0.00 706 0.00 0.0269
2015-05-14 2015-03-31 13F OMNICOM COM 681919106 9,060 9,060 0.00 706 0.0269
2015-02-17 2014-12-31 13F OMNICOM COM 681919106 0 -7,605 -100.00 0 -100.00
2014-11-13 2014-09-30 13F OMNICOM COM 681919106 7,605 7,605 524 0.0199
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.