Janus Henderson Group
PRME icon

Janus Henderson Group’s Prime Medicine PRME Stock Holding History

Janus Henderson Group’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 		$212K Hold
60,900
– – ﹤0.01% 2319
2025
Q4 		$210K Buy
+60,900
New +$271K ﹤0.01% 2338
2023
Q4 		– Sell
-120,946
Closed -$1.15M – 2596
2023
Q3 		$1.15M Sell
120,946
-443,908
-79% -$5.77M ﹤0.01% 1485
2023
Q2 		$8.27M Buy
564,854
+550,763
+3,909% +$7.69M 0.01% 729
2023
Q1 		$173K Buy
+14,091
New +$230K ﹤0.01% 2530

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

Janus Henderson Group's PRME Position: Q1 2026 in Review

Janus Henderson Group held its Prime Medicine (PRME) position steady in Q1 2026 at 60,900 shares worth $212K. The position accounts for ﹤0.01% of the portfolio, ranked #2319.

Janus Henderson Group first reported a position in PRME in Q1 2023 and has held it in 5 quarters since. The position peaked at $8.27M in Q2 2023. 192 funds tracked by Wall St. Rank hold PRME as of Q1 2026.

  • Janus Henderson Group held 60,900 shares of Prime Medicine worth $212K as of Q1 2026.
  • Janus Henderson Group left its Prime Medicine share count unchanged in Q1 2026.
  • Prime Medicine made up ﹤0.01% of Janus Henderson Group's portfolio in Q1 2026, its #2319 holding.
  • Janus Henderson Group first reported a position in Prime Medicine in Q1 2023 and has held it in 5 quarters since.
  • Janus Henderson Group's Prime Medicine position peaked at $8.27M in Q2 2023.
  • 192 funds tracked by Wall St. Rank held Prime Medicine as of Q1 2026.

Based on Janus Henderson Group's 13F filing for Q1 2026, filed 15 May 2026.