Ken Griffin
MNTN

Ken Griffin’s MNTN Inc MNTN Stock Holding History

Ken Griffin’s Portfolio MNTN Stock Details MNTN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$656K Sell
74,500
-40,500
-35% -$405K ﹤0.01% 8643
2025
Q4 		$1.37M Buy
115,000
+38,500
+50% +$554K ﹤0.01% 6716
2025
Q3 		$1.42M Buy
+76,500
New +$1.74M ﹤0.01% 6777

Other funds holding MNTN

Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
MML
Mercato Management Legacy Cottonwood Heights, Utah $56.7M AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
G
Greycroft New York $146M AUM 1.94% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT) London, United Kingdom $89.9B AUM 20.22% 1-Year Est. Return
Federated Hermes
Federated Hermes Pittsburgh, Pennsylvania $61.5B AUM 30.7% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
AFG
American Financial Group Cincinnati, Ohio $270M AUM 3.25% 1-Year Est. Return

Ken Griffin's MNTN Position: Q1 2026 in Review

Ken Griffin increased its MNTN Inc (MNTN) stake by 14% in Q1 2026, buying an estimated $785K and bringing the position to 630,719 shares worth $5.55M. The position accounts for ﹤0.01% of the portfolio, ranked #4173.

Ken Griffin first reported a position in MNTN in Q2 2025 and has held it in 4 quarters since. The position peaked at $7M in Q2 2025. 95 funds tracked by Wall St. Rank hold MNTN as of Q1 2026.

  • Ken Griffin held 630,719 shares of MNTN Inc worth $5.55M as of Q1 2026.
  • Ken Griffin bought 78,563 MNTN Inc shares in Q1 2026, an estimated $785K.
  • MNTN Inc made up ﹤0.01% of Ken Griffin's portfolio in Q1 2026, its #4173 holding.
  • Ken Griffin first reported a position in MNTN Inc in Q2 2025 and has held it in 4 quarters since.
  • Ken Griffin's MNTN Inc position peaked at $7M in Q2 2025.
  • 95 funds tracked by Wall St. Rank held MNTN Inc as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.