XT
PRME icon

XTX Topco’s Prime Medicine PRME Stock Holding History

XTX Topco’s Portfolio PRME Stock Details PRME Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$547K Buy
157,282
+84,347
+116% +$321K 0.01% 1972
2025
Q4 		$253K Buy
72,935
+24,710
+51% +$110K 0.01% 2213
2025
Q3 		$267K Sell
48,225
-85,265
-64% -$346K 0.01% 1598
2025
Q2 		$330K Buy
+133,490
New +$206K 0.01% 1361
2025
Q1 		– Sell
-14,466
Closed -$42.2K – 2953
2024
Q4 		$42.2K Buy
+14,466
New +$50.8K ﹤0.01% 1927

Other funds holding PRME

AI
Alphabet Inc Mountain View, California $4.02B AUM 215.74% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
AIM
ARK Investment Management St. Petersburg, Florida $12.9B AUM 64.92% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Balyasny Asset Management
Balyasny Asset Management Chicago, Illinois $77.1B AUM 42.89% 1-Year Est. Return
CC
Casdin Capital New York $1.32B AUM 76.62% 1-Year Est. Return
WP
Woodline Partners San Francisco, California $26.4B AUM 44.85% 1-Year Est. Return
Sumitomo Mitsui Trust Group
Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $154B AUM 29.96% 1-Year Est. Return

XTX Topco's PRME Position: Q1 2026 in Review

XTX Topco increased its Prime Medicine (PRME) stake by 116% in Q1 2026, buying an estimated $321K and bringing the position to 157,282 shares worth $547K. The position accounts for 0.01% of the portfolio, ranked #1972.

XTX Topco first reported a position in PRME in Q4 2024 and has held it in 5 quarters since. 192 funds tracked by Wall St. Rank hold PRME as of Q1 2026.

  • XTX Topco held 157,282 shares of Prime Medicine worth $547K as of Q1 2026.
  • XTX Topco bought 84,347 Prime Medicine shares in Q1 2026, an estimated $321K.
  • Prime Medicine made up 0.01% of XTX Topco's portfolio in Q1 2026, its #1972 holding.
  • XTX Topco first reported a position in Prime Medicine in Q4 2024 and has held it in 5 quarters since.
  • 192 funds tracked by Wall St. Rank held Prime Medicine as of Q1 2026.

Based on XTX Topco's 13F filing for Q1 2026, filed 15 May 2026.