Thompson Siegel & Walmsley’s Omnicom Group OMC Stock Holding History

Thompson Siegel & Walmsley’s Portfolio OMC Stock Details OMC Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$43.6M	Buy	598,139 +4,221	+0.7%	+$318K	0.78%	41
2026 Q1	$44.7M	Buy	593,918 +256,238	+76%	+$19.9M	0.78%	47
2025 Q4	$27.3M	Buy	337,680 +6,026	+2%	+$460K	0.46%	74
2025 Q3	$27M	Buy	+331,654	New	+$25M	0.44%	71
2023 Q2	–	Sell	-30,000	Closed	-$2.83M	–	553
2023 Q1	$2.83M	Sell	30,000 -28,900	-49%	-$2.56M	0.05%	214
2022 Q4	$4.8M	Sell	58,900 -22,600	-28%	-$1.68M	0.08%	190
2022 Q3	$5.14M	Hold	81,500	–	–	0.09%	186
2022 Q2	$5.18M	Buy	81,500 +56,700	+229%	+$4.2M	0.08%	191
2022 Q1	$2.1M	Buy	+24,800	New	+$1.99M	0.03%	244
2018 Q3	–	Sell	-150	Closed	-$11K	–	792
2018 Q2	$11K	Sell	150 -300	-67%	-$22.2K	﹤0.01%	691
2018 Q1	$33K	Hold	450	–	–	﹤0.01%	570
2017 Q4	$33K	Buy	+450	New	+$32.3K	﹤0.01%	589

Other funds holding OMC

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Massachusetts Financial Services Boston, Massachusetts $315B AUM 27.84% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

First Eagle Investment Management New York $59.9B AUM 27.01% 1-Year Est. Return

Thompson Siegel & Walmsley's OMC Position: Q2 2026 in Review

Thompson Siegel & Walmsley increased its Omnicom Group (OMC) stake by 0.71% in Q2 2026, buying an estimated $318K and bringing the position to 598,139 shares worth $43.6M. The position accounts for 0.78% of the portfolio, ranked #41.

Thompson Siegel & Walmsley first reported a position in OMC in Q4 2017 and has held it in 12 quarters since. The position peaked at $44.7M in Q1 2026. 1,092 funds tracked by Wall St. Rank hold OMC as of Q2 2026.

Thompson Siegel & Walmsley held 598,139 shares of Omnicom Group worth $43.6M as of Q2 2026.
Thompson Siegel & Walmsley bought 4,221 Omnicom Group shares in Q2 2026, an estimated $318K.
Omnicom Group made up 0.78% of Thompson Siegel & Walmsley's portfolio in Q2 2026, its #41 holding.
Thompson Siegel & Walmsley first reported a position in Omnicom Group in Q4 2017 and has held it in 12 quarters since.
Thompson Siegel & Walmsley's Omnicom Group position peaked at $44.7M in Q1 2026.
1,092 funds tracked by Wall St. Rank held Omnicom Group as of Q2 2026.

Based on Thompson Siegel & Walmsley's 13F filing for Q2 2026, filed 11 Aug 2026.