Omnicom Group Inc.
US ˙ NYSE ˙ US6819191064

SecurityOMC / Omnicom Group Inc.
InstitutionAscent Group, LLC
Latest Disclosed Ownership19,034 shares
Latest Disclosed Value $ 1,433,451
Ascent Group, LLC reports 3.42% increase in ownership of OMC / Omnicom Group Inc.

On May 15, 2026 - Ascent Group, LLC filed a 13F-HR form disclosing ownership of 19,034 shares of Omnicom Group Inc. (US:OMC) valued at $1,433,451 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 18,405 shares of Omnicom Group Inc.. This represents a change in shares of 3.42% during the quarter. The current value of the position is $1,403,567 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 19,034 629 3.42 1,433 -3.57 0.0164
2026-01-20 2025-12-31 13F OMNICOM GROUP COM 681919106 18,405 18,405 1,486 0.0508
2025-07-21 2025-06-30 13F OMNICOM GROUP COM 681919106 0 -2,592 -100.00 0 -100.00
2025-05-16 2025-03-31 13F OMNICOM GROUP COM 681919106 2,592 2,592 215 0.0092
2025-02-21 2024-12-31 13F OMNICOM GROUP COM 681919106 0 -2,629 -100.00 0 -100.00
2024-11-14 2024-09-30 13F OMNICOM GROUP COM 681919106 2,629 -371 -12.37 272 0.74 0.0206
2024-08-15 2024-06-30 13F OMNICOM GROUP COM 681919106 3,000 310 11.52 269 3.46 0.0219
2024-05-15 2024-03-31 13F OMNICOM GROUP COM 681919106 2,690 -208 -7.18 260 4.00 0.0229
2024-02-14 2023-12-31 13F OMNICOM GROUP COM 681919106 2,898 -1,426 -32.98 251 -22.84 0.0238
2023-11-14 2023-09-30 13F OMNICOM GROUP COM 681919106 4,324 -1,051 -19.55 324 -24.83 0.0358
2023-08-14 2023-06-30 13F OMNICOM GROUP COM 681919106 5,375 -563 -9.48 432 -23.04 0.0476
2023-05-10 2023-03-31 13F OMNICOM GROUP COM 681919106 5,938 1,234 26.23 560 46.21 0.0596
2023-02-17 2022-12-31 13F OMNICOM GROUP COM 681919106 4,704 -448 -8.70 384 2.13 0.0452
2022-11-15 2022-09-30 13F OMNICOM GROUP COM 681919106 5,152 -4,806 -48.26 375 -46.04 0.0456
2022-08-05 2022-06-30 13F OMNICOM GROUP COM 681919106 9,958 -665 -6.26 695 -22.95 0.0831
2022-05-10 2022-03-31 13F OMNICOM GROUP COM 681919106 10,623 705 7.11 902 20.27 0.1050
2022-03-01 2021-12-31 13F OMNICOM GROUP COM 681919106 9,918 9,918 750 0.0956
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.