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Sienna Gestion’s Omnicom Group OMC Stock Holding History

Sienna Gestion’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 		$807K Buy
+10,791
New +$812K 0.05% 127
2025
Q1 		– Sell
-5,427
Closed -$467K – 193
2024
Q4 		$467K Sell
5,427
-130,217
-96% -$12.9M 0.03% 162
2024
Q3 		$14M Buy
135,644
+20,253
+18% +$1.95M 0.93% 29
2024
Q2 		$10.3M Buy
115,391
+605
+0.5% +$56.2K 0.92% 33
2024
Q1 		$11.1M Buy
+114,786
New +$10.3M 0.95% 25

Other funds holding OMC

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Bank of New York Mellon
Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $315B AUM 27.84% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
First Eagle Investment Management
First Eagle Investment Management New York $60.8B AUM 26.63% 1-Year Est. Return

Sienna Gestion's OMC Position: Q2 2026 in Review

Sienna Gestion opened a new position in Omnicom Group (OMC) in Q2 2026: 10,791 shares worth $807K. The stake represents 0.05% of the portfolio and ranks #127 among its holdings. This is a return to the name: Sienna Gestion previously reported a position in OMC as recently as Q4 2024.

Sienna Gestion first reported a position in OMC in Q1 2024 and has held it in 5 quarters since. The position peaked at $14M in Q3 2024. 1,098 funds tracked by Wall St. Rank hold OMC as of Q2 2026.

  • Sienna Gestion held 10,791 shares of Omnicom Group worth $807K as of Q2 2026.
  • Omnicom Group was a new Sienna Gestion position in Q2 2026.
  • Omnicom Group made up 0.05% of Sienna Gestion's portfolio in Q2 2026, its #127 holding.
  • Sienna Gestion first reported a position in Omnicom Group in Q1 2024 and has held it in 5 quarters since.
  • Sienna Gestion's Omnicom Group position peaked at $14M in Q3 2024.
  • 1,098 funds tracked by Wall St. Rank held Omnicom Group as of Q2 2026.

Based on Sienna Gestion's 13F filing for Q2 2026, filed 13 Aug 2026.