Ken Griffin
WAY

Ken Griffin’s Waystar Holding Corp WAY Stock Holding History

Ken Griffin’s Portfolio WAY Stock Details WAY Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$3.13M Buy
129,975
+35,081
+37% +$931K ﹤0.01% 5182
2025
Q4 		$3.11M Buy
+94,894
New +$3.38M ﹤0.01% 5094
2025
Q3 		– Sell
-160,702
Closed -$5.96M – 14408
2025
Q2 		$6.57M Sell
160,702
-1,076,150
-87% -$41.5M ﹤0.01% 3661
2025
Q1 		$46.2M Buy
1,236,852
+852,896
+222% +$33.8M 0.01% 1217
2024
Q4 		$14.1M Buy
383,956
+78,618
+26% +$2.42M ﹤0.01% 2559
2024
Q3 		$8.52M Sell
305,338
-927,464
-75% -$22.9M ﹤0.01% 3160
2024
Q2 		$26.5M Buy
+1,232,802
New +$26.7M 0.01% 1719

Other funds holding WAY

EFM
EQT Fund Management Luxembourg $863M AUM 26.03% 1-Year Est. Return
Canada Pension Plan Investment Board
Canada Pension Plan Investment Board Toronto Ontario, Ontario, Canada $155B AUM 29.93% 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
BCI
Bain Capital Investors Boston, Massachusetts $3.27B AUM 3.23% 1-Year Est. Return
AI
Advent International Boston, Massachusetts $4.24B AUM 4.24% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Neuberger Berman Group
Neuberger Berman Group New York $150B AUM 40.08% 1-Year Est. Return
GAM
Goldentree Asset Management New York $1.69B AUM 10.69% 1-Year Est. Return

Ken Griffin's WAY Position: Q1 2026 in Review

Ken Griffin increased its Waystar Holding Corp (WAY) stake by 37% in Q1 2026, buying an estimated $931K and bringing the position to 129,975 shares worth $3.13M. The position accounts for ﹤0.01% of the portfolio, ranked #5182.

Ken Griffin first reported a position in WAY in Q2 2024 and has held it in 7 quarters since. The position peaked at $46.2M in Q1 2025. 307 funds tracked by Wall St. Rank hold WAY as of Q1 2026.

  • Ken Griffin held 129,975 shares of Waystar Holding Corp worth $3.13M as of Q1 2026.
  • Ken Griffin bought 35,081 Waystar Holding Corp shares in Q1 2026, an estimated $931K.
  • Waystar Holding Corp made up ﹤0.01% of Ken Griffin's portfolio in Q1 2026, its #5182 holding.
  • Ken Griffin first reported a position in Waystar Holding Corp in Q2 2024 and has held it in 7 quarters since.
  • Ken Griffin's Waystar Holding Corp position peaked at $46.2M in Q1 2025.
  • 307 funds tracked by Wall St. Rank held Waystar Holding Corp as of Q1 2026.

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