Ken Griffin
BRUN

Ken Griffin’s Boost Run Inc BRUN Stock Holding History

Ken Griffin’s Portfolio BRUN Stock Details BRUN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$51.3M Buy
+1,320,722
New +$40.9M 0.01% 1539

Other funds holding BRUN

D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
AIC
AWM Investment Company New York $1.15B AUM 201.65% 1-Year Est. Return
CFM
Capricorn Fund Managers London, United Kingdom $1.27B AUM 70.17% 1-Year Est. Return
HCP
Hiddenite Capital Partners New York $1.16B AUM 95.58% 1-Year Est. Return
YAG
Yorkville Advisors Global Mountainside, New Jersey $86.2M AUM 41.28% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
HCI
Harraden Circle Investments New York $784M AUM 21.03% 1-Year Est. Return
SM
Scoggin Management New York $935M AUM 301.8% 1-Year Est. Return
MF
Magnetar Financial Evanston, Illinois $11B AUM 3.37% 1-Year Est. Return

Ken Griffin's BRUN Position: Q2 2026 in Review

Ken Griffin opened a new position in Boost Run Inc (BRUN) in Q2 2026: 1,320,722 shares worth $51.3M. The stake represents 0.01% of the portfolio and ranks #1539 among its holdings.

69 funds tracked by Wall St. Rank hold BRUN as of Q2 2026.

  • Ken Griffin held 1,320,722 shares of Boost Run Inc worth $51.3M as of Q2 2026.
  • Boost Run Inc was a new Ken Griffin position in Q2 2026.
  • Boost Run Inc made up 0.01% of Ken Griffin's portfolio in Q2 2026, its #1539 holding.
  • 69 funds tracked by Wall St. Rank held Boost Run Inc as of Q2 2026.

Based on Citadel Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.