William Blair Investment Management
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William Blair Investment Management’s TKO Group TKO Stock Holding History

William Blair Investment Management’s Portfolio TKO Stock Details TKO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$4.57M Sell
22,676
-163
-0.7% -$33.3K 0.02% 338
2025
Q4 		$4.77M Sell
22,839
-10,357
-31% -$2.01M 0.01% 338
2025
Q3 		$6.7M Sell
33,196
-21,345
-39% -$3.9M 0.02% 333
2025
Q2 		$9.92M Buy
+54,541
New +$8.76M 0.03% 328

Other funds holding TKO

State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Ninety One (UK)
Ninety One (UK) London, United Kingdom $44.7B AUM 17.24% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $298B AUM 21.96% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
LT
Lindsell Train London, United Kingdom $2.63B AUM 2.97% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

William Blair Investment Management's TKO Position: Q1 2026 in Review

William Blair Investment Management reduced its TKO Group (TKO) stake by 0.71% in Q1 2026, selling an estimated $33.3K and leaving 22,676 shares worth $4.57M. The position accounts for 0.02% of the portfolio, ranked #338.

William Blair Investment Management first reported a position in TKO in Q2 2025 and has held it in 4 quarters since. The position peaked at $9.92M in Q2 2025. 640 funds tracked by Wall St. Rank hold TKO as of Q1 2026.

  • William Blair Investment Management held 22,676 shares of TKO Group worth $4.57M as of Q1 2026.
  • William Blair Investment Management sold 163 TKO Group shares in Q1 2026, an estimated $33.3K.
  • TKO Group made up 0.02% of William Blair Investment Management's portfolio in Q1 2026, its #338 holding.
  • William Blair Investment Management first reported a position in TKO Group in Q2 2025 and has held it in 4 quarters since.
  • William Blair Investment Management's TKO Group position peaked at $9.92M in Q2 2025.
  • 640 funds tracked by Wall St. Rank held TKO Group as of Q1 2026.

Based on William Blair Investment Management's 13F filing for Q1 2026, filed 8 May 2026.