Ken Griffin
ATHR

Ken Griffin’s Aether Holdings ATHR Stock Holding History

Ken Griffin’s Portfolio ATHR Stock Details ATHR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-40,716
Closed -$252K – 14689
2025
Q4 		$252K Buy
+40,716
New +$243K ﹤0.01% 10527

Other funds holding ATHR

AIM
Axiom Investment Management New York $150M AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
VFT
Vanguard Fiduciary Trust Malvern, Pennsylvania $396B AUM
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
TRCT
Tower Research Capital (TRC) New York $4.08B AUM 58.77% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

Ken Griffin's ATHR Position: Q1 2026 in Review

Ken Griffin sold out of Aether Holdings (ATHR) in Q1 2026, closing a stake of 40,716 shares — an estimated $252K sold.

Ken Griffin first reported a position in ATHR in Q4 2025 and held it in 1 quarter. The position peaked at $252K in Q4 2025. 7 funds tracked by Wall St. Rank hold ATHR as of Q1 2026.

  • Ken Griffin reported no remaining Aether Holdings position as of Q1 2026 after selling out during the quarter.
  • Ken Griffin sold 40,716 Aether Holdings shares in Q1 2026, an estimated $252K.
  • Ken Griffin first reported a position in Aether Holdings in Q4 2025 and held it in 1 quarter.
  • Ken Griffin's Aether Holdings position peaked at $252K in Q4 2025.
  • 7 funds tracked by Wall St. Rank held Aether Holdings as of Q1 2026.

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