Mariner
PRME icon

Mariner’s Prime Medicine PRME Stock Holding History

Mariner’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 		$273K Buy
78,398
+42,108
+116% +$160K ﹤0.01% 2948
2025
Q4 		$126K Buy
36,290
+18,071
+99% +$80.4K ﹤0.01% 3287
2025
Q3 		$101K Buy
+18,219
New +$74K ﹤0.01% 3355

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

Mariner's PRME Position: Q1 2026 in Review

Mariner increased its Prime Medicine (PRME) stake by 116% in Q1 2026, buying an estimated $160K and bringing the position to 78,398 shares worth $273K. The position accounts for ﹤0.01% of the portfolio, ranked #2948.

Mariner first reported a position in PRME in Q3 2025 and has held it in 3 quarters since. 192 funds tracked by Wall St. Rank hold PRME as of Q1 2026.

  • Mariner held 78,398 shares of Prime Medicine worth $273K as of Q1 2026.
  • Mariner bought 42,108 Prime Medicine shares in Q1 2026, an estimated $160K.
  • Prime Medicine made up ﹤0.01% of Mariner's portfolio in Q1 2026, its #2948 holding.
  • Mariner first reported a position in Prime Medicine in Q3 2025 and has held it in 3 quarters since.
  • 192 funds tracked by Wall St. Rank held Prime Medicine as of Q1 2026.

Based on Mariner's 13F filing for Q1 2026, filed 13 May 2026.