Omnicom Group Inc.
US ˙ NYSE ˙ US6819191064

SecurityOMC / Omnicom Group Inc.
InstitutionQuantinno Capital Management LP
Latest Disclosed Ownership241,156 shares
Latest Disclosed Value $ 18,161,497
Quantinno Capital Management LP reports 48.70% increase in ownership of OMC / Omnicom Group Inc.

On May 15, 2026 - Quantinno Capital Management LP filed a 13F-HR form disclosing ownership of 241,156 shares of Omnicom Group Inc. (US:OMC) valued at $18,161,458 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 162,175 shares of Omnicom Group Inc.. This represents a change in shares of 48.70% during the quarter. The current value of the position is $18,238,628 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 241,156 78,981 48.70 18,161 38.69 0.0303
2026-02-17 2025-12-31 13F OMNICOM GROUP COM 681919106 162,175 72,870 81.60 13,096 79.85 0.0263
2025-11-14 2025-09-30 13F OMNICOM GROUP COM 681919106 89,305 50,274 128.81 7,281 159.39 0.0199
2025-08-14 2025-06-30 13F OMNICOM GROUP COM 681919106 39,031 1,555 4.15 2,808 -9.66 0.0121
2025-05-12 2025-03-31 13F OMNICOM GROUP COM 681919106 37,476 5,308 16.50 3,107 12.29 0.0202
2025-02-14 2024-12-31 13F OMNICOM GROUP COM 681919106 32,168 10,882 51.12 2,768 25.77 0.0272
2024-11-14 2024-09-30 13F OMNICOM GROUP COM 681919106 21,286 4,262 25.04 2,201 44.07 0.0286
2024-08-14 2024-06-30 13F OMNICOM GROUP COM 681919106 17,024 1,168 7.37 1,527 -0.46 0.0275
2024-05-14 2024-03-31 13F OMNICOM GROUP COM 681919106 15,856 1,421 9.84 1,534 22.82 0.0333
2024-02-14 2023-12-31 13F OMNICOM GROUP COM 681919106 14,435 3,936 37.49 1,249 59.72 0.0437
2023-11-14 2023-09-30 13F OMNICOM GROUP COM 681919106 10,499 -3,442 -24.69 782 -41.07 0.0356
2023-08-04 2023-06-30 13F OMNICOM GROUP COM 681919106 13,941 87 0.63 1,327 1.53 0.0758
2023-05-03 2023-03-31 13F OMNICOM GROUP COM 681919106 13,854 1,190 9.40 1,307 26.52 0.0864
2023-02-13 2022-12-31 13F OMNICOM GROUP COM 681919106 12,664 9,231 268.89 1,033 376.04 0.0771
2022-11-08 2022-09-30 13F OMNICOM GROUP COM 681919106 3,433 3,433 217 0.0279
2021-11-15 2021-09-30 13F OMNICOM GROUP COM 681919106 0 -4,276 -100.00 0 -100.00
2021-08-16 2021-06-30 13F OMNICOM GROUP COM 681919106 4,276 1,234 40.57 342 51.33 0.3878
2021-05-17 2021-03-31 13F OMNICOM GROUP COM 681919106 3,042 3,042 226 0.2463
2021-02-09 2020-12-31 13F OMNICOM GROUP COM 681919106 0 -12,068 -100.00 0 -100.00
2020-11-16 2020-09-30 13F OMNICOM GROUP COM 681919106 12,068 12,068 597 0.3993
2019-11-14 2019-09-30 13F OMNICOM GROUP COM 681919106 0 -2,516 -100.00 0 -100.00
2019-08-14 2019-06-30 13F OMNICOM GROUP COM 681919106 2,516 2,516 206 0.1209
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.