MIM
WAY

Monashee Investment Management’s Waystar Holding Corp WAY Stock Holding History

Monashee Investment Management’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
2025
Q4 		– Sell
-150,000
Closed -$5.69M – 58
2025
Q3 		$5.69M Buy
+150,000
New +$5.56M 2.84% 11
2025
Q2 		– Sell
-250,000
Closed -$9.34M – 87
2025
Q1 		$9.34M Buy
+250,000
New +$9.9M 1.11% 14
2024
Q4 		– Sell
-125,000
Closed -$3.49M – 115
2024
Q3 		$3.49M Sell
125,000
-75,000
-38% -$1.85M 0.38% 39
2024
Q2 		$4.3M Buy
+200,000
New +$4.33M 0.56% 23

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 $181B AUM 41.77% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
BCI
Bain Capital Investors Boston, Massachusetts $4.82B AUM 35.43% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
AI
Advent International Boston, Massachusetts $17.7B AUM 5.23% 1-Year Est. Return
Neuberger Berman Group
Neuberger Berman Group New York $150B AUM 40.08% 1-Year Est. Return
William Blair Investment Management
William Blair Investment Management Chicago, Illinois $33.3B AUM 44.76% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Monashee Investment Management's WAY Position: Q4 2025 in Review

Monashee Investment Management sold out of Waystar Holding Corp (WAY) in Q4 2025, closing a stake of 150,000 shares — an estimated $5.69M sold.

Monashee Investment Management first reported a position in WAY in Q2 2024 and held it in 4 quarters. The position peaked at $9.34M in Q1 2025. 300 funds tracked by Wall St. Rank hold WAY as of Q4 2025.

  • Monashee Investment Management reported no remaining Waystar Holding Corp position as of Q4 2025 after selling out during the quarter.
  • Monashee Investment Management sold 150,000 Waystar Holding Corp shares in Q4 2025, an estimated $5.69M.
  • Monashee Investment Management first reported a position in Waystar Holding Corp in Q2 2024 and held it in 4 quarters.
  • Monashee Investment Management's Waystar Holding Corp position peaked at $9.34M in Q1 2025.
  • 300 funds tracked by Wall St. Rank held Waystar Holding Corp as of Q4 2025.

Based on Monashee Investment Management's 13F filing for Q4 2025, filed 12 Feb 2026.