Omnicom Group Inc.
US ˙ NYSE ˙ US6819191064

SecurityOMC / Omnicom Group Inc.
InstitutionEngineers Gate Manager LP
Latest Disclosed Ownership282,555 shares
Latest Disclosed Value $ 21,279,217
Engineers Gate Manager LP reports 17.66% decrease in ownership of OMC / Omnicom Group Inc.

On May 15, 2026 - Engineers Gate Manager LP filed a 13F-HR form disclosing ownership of 282,555 shares of Omnicom Group Inc. (US:OMC) valued at $21,279,217 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 343,140 shares of Omnicom Group Inc.. This represents a change in shares of -17.66% during the quarter. The current value of the position is $20,835,606 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 282,555 -60,585 -17.66 21,279 -23.20 0.2660
2026-02-17 2025-12-31 13F OMNICOM GROUP COM 681919106 343,140 321,105 1,457.25 27,709 1,442.76 0.3286
2025-11-14 2025-09-30 13F OMNICOM GROUP COM 681919106 22,035 17,805 420.92 1,797 490.79 0.0206
2025-08-14 2025-06-30 13F OMNICOM GROUP COM 681919106 4,230 -8,350 -66.38 304 -70.85 0.0038
2025-05-15 2025-03-31 13F OMNICOM GROUP COM 681919106 12,580 -65,456 -83.88 1,043 -84.47 0.0176
2025-02-14 2024-12-31 13F OMNICOM GROUP COM 681919106 78,036 72,153 1,226.47 6,714 1,004.28 0.1169
2024-11-14 2024-09-30 13F OMNICOM GROUP COM 681919106 5,883 2,315 64.88 608 90.00 0.0119
2024-08-14 2024-06-30 13F OMNICOM GROUP COM 681919106 3,568 3,568 320 0.0072
2024-02-14 2023-12-31 13F OMNICOM GROUP COM 681919106 0 -36,408 -100.00 0 -100.00
2023-11-14 2023-09-30 13F OMNICOM GROUP COM 681919106 36,408 36,408 2,712 0.1002
2022-11-14 2022-09-30 13F OMNICOM GROUP COM 681919106 0 -6,676 -100.00 0 -100.00
2022-08-15 2022-06-30 13F OMNICOM GROUP COM 681919106 6,676 6,676 425 0.0156
2021-11-15 2021-09-30 13F OMNICOM GROUP COM 681919106 0 -6,936 -100.00 0 -100.00
2021-08-16 2021-06-30 13F OMNICOM GROUP COM 681919106 6,936 6,936 555 0.0357
2021-05-17 2021-03-31 13F OMNICOM GROUP COM 681919106 0 -57,256 -100.00 0 -100.00
2021-02-16 2020-12-31 13F OMNICOM GROUP COM 681919106 57,256 -24,121 -29.64 3,571 -11.35 0.1548
2020-11-16 2020-09-30 13F OMNICOM GROUP COM 681919106 81,377 50,050 159.77 4,028 135.56 0.1890
2020-08-17 2020-06-30 13F OMNICOM GROUP COM 681919106 31,327 9,016 40.41 1,710 39.59 0.0870
2020-05-15 2020-03-31 13F OMNICOM GROUP COM 681919106 22,311 22,311 -28.78 1,225 -28.36 0.0882
2020-02-14 2019-12-31 13F OMNICOM GROUP COM 681919106 0 -32,055 -100.00 0 -100.00
2019-11-14 2019-09-30 13F OMNICOM GROUP COM 681919106 32,055 32,055 2,510 0.1275
2018-05-07 2018-03-31 13F OMNICOM GROUP COM 681919106 0 -40,544 -100.00 0 -100.00
2018-02-01 2017-12-31 13F OMNICOM GROUP COM 681919106 40,544 35,432 693.11 2,953 679.16 0.2027
2017-11-13 2017-09-30 13F OMNICOM GROUP COM 681919106 5,112 -25,269 -83.17 379 -84.95 0.0319
2017-08-10 2017-06-30 13F OMNICOM GROUP COM 681919106 30,381 30,381 494.31 2,519 564.64 0.2270
2016-11-09 2016-09-30 13F OMNICOM GROUP COM 681919106 0 -57,401 -100.00 0 -100.00
2016-08-11 2016-06-30 13F OMNICOM GROUP COM 681919106 57,401 57,401 0.00 4,678 0.3357
2016-02-05 2015-12-31 13F OMNICOM GROUP COM 681919106 0 -4,873 -100.00 0 -100.00
2015-11-16 2015-09-30 13F OMNICOM GROUP COM 681919106 4,873 -32,215 -86.86 321 -87.54 0.0273
2015-08-14 2015-06-30 13F OMNICOM GROUP COM 681919106 37,088 37,088 2,577 0.2522
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.