Omnicom Group Inc.
US ˙ NYSE ˙ US6819191064

SecurityOMC / Omnicom Group Inc.
InstitutionAmalgamated Bank
Latest Disclosed Ownership57,290 shares
Latest Disclosed Value $ 4,315
Amalgamated Bank reports 4.96% decrease in ownership of OMC / Omnicom Group Inc.

On May 8, 2026 - Amalgamated Bank filed a 13F-HR form disclosing ownership of 57,290 shares of Omnicom Group Inc. (US:OMC) valued at $4,314,510 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 60,277 shares of Omnicom Group Inc.. This represents a change in shares of -4.96% during the quarter. The current value of the position is $4,314,510 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)
2026-05-08 2026-03-31 13F OMNICOM GROUP COM 681919106 57,290 -2,987 -4.96 4 0.00 0.0330
2026-02-05 2025-12-31 13F OMNICOM GROUP COM 681919106 60,277 23,554 64.14 5 100.00 0.0351
2025-10-29 2025-09-30 13F OMNICOM GROUP COM 681919106 36,723 -925 -2.46 3 0.00 0.0214
2025-08-04 2025-06-30 13F OMNICOM GROUP COM 681919106 37,648 -434 -1.14 3 -33.33 0.0209
2025-04-25 2025-03-31 13F OMNICOM GROUP COM 681919106 38,082 582 1.55 3 0.00 0.0270
2025-02-04 2024-12-31 13F OMNICOM GROUP COM 681919106 37,500 -832 -2.17 3 0.00 0.0265
2024-10-30 2024-09-30 13F OMNICOM GROUP COM 681919106 38,332 -13,428 -25.94 4 -25.00 0.0326
2024-08-12 2024-06-30 13F OMNICOM GROUP COM 681919106 51,760 10,840 26.49 5 33.33 0.0395
2024-04-23 2024-03-31 13F OMNICOM GROUP COM 681919106 40,920 -15,999 -28.11 4 -25.00 0.0339
2024-02-06 2023-12-31 13F OMNICOM GROUP COM 681919106 56,919 -7,178 -11.20 5 0.00 0.0393
2023-11-08 2023-09-30 13F OMNICOM GROUP COM 681919106 64,097 11,304 21.41 5 -20.00 0.0406
2023-08-11 2023-06-30 13F OMNICOM GROUP COM 681919106 52,793 -1,666 -3.06 5 0.00 0.0407
2023-05-02 2023-03-31 13F OMNICOM GROUP COM 681919106 54,459 -17,613 -24.44 5 0.00 0.0438
2023-02-10 2022-12-31 13F OMNICOM GROUP COM 681919106 72,072 19,223 36.37 6 -99.85 0.0524
2022-11-09 2022-09-30 13F OMNICOM GROUP COM 681919106 52,849 -6,863 -11.49 3,334 -12.22 0.0322
2022-08-15 2022-06-30 13F OMNICOM GROUP COM 681919106 59,712 6,607 12.44 3,798 -15.75 0.0354
2022-08-25 2022-03-31 13F/A-1 OMNICOM GROUP COM 681919106 53,105 -4,127 -7.21 4,508 7.51 0.0350
2022-06-30 2022-03-31 13F OMNICOM GROUP COM 681919106 53,105 -4,127 4,508 0.0358
2022-02-15 2021-12-31 13F/A-1 OMNICOM GROUP COM 681919106 57,232 -10,035 -14.92 4,193 -13.97 0.0309
2022-02-15 2021-12-31 13F OMNICOM GROUP COM 681919106 57,232 -10,035 4,193 0.0309
2021-10-29 2021-09-30 13F OMNICOM GROUP COM 681919106 67,267 -2,125 -3.06 4,874 -12.20 0.0412
2021-08-16 2021-06-30 13F OMNICOM GROUP COM 681919106 69,392 57,751 496.10 5,551 543.22 0.0445
2021-05-13 2021-03-31 13F OMNICOM GROUP COM 681919106 11,641 -428 -3.55 863 14.61 0.0324
2021-02-12 2020-12-31 13F OMNICOM GROUP COM 681919106 12,069 -27 -0.22 753 25.71 0.0285
2020-10-30 2020-09-30 13F OMNICOM GROUP COM 681919106 12,096 -257 -2.08 599 -11.13 0.0260
2020-08-10 2020-06-30 13F OMNICOM GROUP COM 681919106 12,353 -21,608 -63.63 674 -63.84 0.0312
2020-05-13 2020-03-31 13F OMNICOM GROUP COM 681919106 33,961 -1,230 -3.50 1,864 -34.62 0.0456
2020-02-13 2019-12-31 13F OMNICOM GROUP COM 681919106 35,191 1,516 4.50 2,851 8.12 0.0525
2019-11-13 2019-09-30 13F OMNICOM GROUP COM 681919106 33,675 3,568 11.85 2,637 6.89 0.0554
2019-08-14 2019-06-30 13F OMNICOM GROUP COM 681919106 30,107 -1,621 -5.11 2,467 6.52 0.0576
2019-05-15 2019-03-31 13F OMNICOM GROUP COM 681919106 31,728 728 2.35 2,316 2.03 0.0561
2019-02-15 2018-12-31 13F OMNICOM GROUP COM 681919106 31,000 -922 -2.89 2,270 4.56 0.0643
2018-11-14 2018-09-30 13F OMNICOM GROUP COM 681919106 31,922 -1,225 -3.70 2,171 -14.12 0.0537
2018-07-18 2018-06-30 13F OMNICOM GROUP COM 681919106 33,147 -679 -2.01 2,528 2.85 0.0618
2018-05-22 2018-03-31 13F OMNICOM GROUP COM 681919106 33,826 3,311 10.85 2,458 10.62 0.0652
2018-02-13 2017-12-31 13F OMNICOM GROUP COM 681919106 30,515 2,661 9.55 2,222 7.71 0.0601
2017-11-09 2017-09-30 13F OMNICOM GROUP COM 681919106 27,854 576 2.11 2,063 -8.76 0.0643
2017-08-10 2017-06-30 13F OMNICOM GROUP COM 681919106 27,278 9,394 52.53 2,261 46.63 0.0741
2017-05-12 2017-03-31 13F OMNICOM GROUP COM 681919106 17,884 -7,692 -30.08 1,542 -29.17 0.0768
2017-02-14 2016-12-31 13F OMNICOM GROUP COM 681919106 25,576 4,445 21.04 2,177 21.21 0.0984
2016-11-15 2016-09-30 13F/A-1 OMNICOM GROUP COM 681919106 21,131 -1 -0.00 1,796 2.22 0.1042
2016-11-14 2016-09-30 13F OMNICOM GROUP COM 681919106 6,165 524
2016-08-16 2016-06-30 13F OMNICOM GROUP COM 681919106 21,132 11,457 118.42 1,757 118.26 0.1017
2016-05-11 2016-03-31 13F OMNICOM GROUP COM 681919106 9,675 2,294 31.08 805 44.27 0.0784
2016-02-10 2015-12-31 13F OMNICOM GROUP COM 681919106 7,381 -1,886 -20.35 558 -8.67 0.0688
2015-11-04 2015-09-30 13F OMNICOM GROUP COM 681919106 9,267 332 3.72 611 -1.61 0.0641
2015-07-10 2015-06-30 13F OMNICOM GROUP COM 681919106 8,935 -21 -0.23 621 -11.03 0.0610
2015-04-22 2015-03-31 13F OMNICOM GROUP COM 681919106 8,956 8,956 0.00 698 0.0852
2015-01-29 2014-12-31 13F OMNICOM GROUP COM 681919106 0 -7,899 -100.00 0 -100.00
2014-11-14 2014-09-30 13F OMNICOM GROUP COM 681919106 7,899 440 5.90 544 2.45 0.0810
2014-08-11 2014-06-30 13F OMNICOM GROUP COM 681919106 7,459 860 13.03 531 10.86 0.0801
2014-05-12 2014-03-31 13F OMNICOM GROUP COM 681919106 6,599 -132 -1.96 479 -4.39 0.0825
2014-02-13 2013-12-31 13F OMNICOM GROUP COM 681919106 6,731 6,731 -5.69 501 19.29 0.0852
2013-11-14 2013-09-30 13F OMNICOM GROUP COM 681919106 0 0 0 0.0000
2013-08-15 2013-06-30 13F OMNICOM GROUP COM 681919106 0 -7,137 -100.00 0 -100.00
2014-02-13 2013-03-31 13F OMNICOM GROUP COM 681919106 7,137 2,335 48.63 420 75.00 0.1192
2014-02-11 2012-12-31 13F OMNICOM GROUP COM 681919106 4,802 918 23.64 240 20.00 0.1000
2014-02-11 2012-09-30 13F OMNICOM GROUP COM 681919106 3,884 3,884 200 0.1270
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.