Ken Griffin
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Ken Griffin’s Unusual Machines UMAC Stock Holding History

Ken Griffin’s Portfolio UMAC Stock Details UMAC Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$17.2M Buy
+1,390,698
New +$21.2M ﹤0.01% 2510
2025
Q4 		– Sell
-276,976
Closed -$3.25M – 14319
2025
Q3 		$4.18M Buy
276,976
+151,886
+121% +$1.6M ﹤0.01% 4681
2025
Q2 		$1.07M Buy
+125,090
New +$788K ﹤0.01% 6933
2024
Q4 		– Sell
-13,132
Closed -$20K – 15530
2024
Q3 		$20K Buy
+13,132
New +$21.7K ﹤0.01% 12776
2024
Q2 		– Sell
-16,961
Closed -$29.7K – 15601
2024
Q1 		$29.7K Buy
+16,961
New +$42.1K ﹤0.01% 12707

Other funds holding UMAC

Ameriprise
Ameriprise Minneapolis, Minnesota $432B AUM 30.22% 1-Year Est. Return
Tudor Investment Corp
Tudor Investment Corp Stamford, Connecticut $53.9B AUM 29.12% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
DKCM
Davidson Kempner Capital Management New York $7.33B AUM 56.47% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
GIM
Granahan Investment Management Waltham, Massachusetts $2.07B AUM 56.45% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return

Ken Griffin's UMAC Position: Q1 2026 in Review

Ken Griffin opened a new position in Unusual Machines (UMAC) in Q1 2026: 1,390,698 shares worth $17.2M. The stake represents ﹤0.01% of the portfolio and ranks #2510 among its holdings. This is a return to the name: Ken Griffin previously reported a position in UMAC as recently as Q3 2025.

Ken Griffin first reported a position in UMAC in Q1 2024 and has held it in 5 quarters since. 140 funds tracked by Wall St. Rank hold UMAC as of Q1 2026.

  • Ken Griffin held 1,390,698 shares of Unusual Machines worth $17.2M as of Q1 2026.
  • Unusual Machines was a new Ken Griffin position in Q1 2026.
  • Unusual Machines made up ﹤0.01% of Ken Griffin's portfolio in Q1 2026, its #2510 holding.
  • Ken Griffin first reported a position in Unusual Machines in Q1 2024 and has held it in 5 quarters since.
  • 140 funds tracked by Wall St. Rank held Unusual Machines as of Q1 2026.

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