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
Q2 		$93.7K Sell
25,389
-53,009
-68% -$176K ﹤0.01% 3341
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 $99.1B AUM 124.46% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
AIM
ARK Investment Management St. Petersburg, Florida $15.4B AUM 50.29% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Balyasny Asset Management
Balyasny Asset Management Chicago, Illinois $80.2B AUM 51.53% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
CC
Casdin Capital New York $2B AUM 147.21% 1-Year Est. Return
WP
Woodline Partners San Francisco, California $32.4B AUM 58.5% 1-Year Est. Return

Mariner's PRME Position: Q2 2026 in Review

Mariner reduced its Prime Medicine (PRME) stake by 68% in Q2 2026, selling an estimated $176K and leaving 25,389 shares worth $93.7K. The position accounts for ﹤0.01% of the portfolio, ranked #3341.

Mariner first reported a position in PRME in Q3 2025 and has held it in 4 quarters since. The position peaked at $273K in Q1 2026. 188 funds tracked by Wall St. Rank hold PRME as of Q2 2026.

  • Mariner held 25,389 shares of Prime Medicine worth $93.7K as of Q2 2026.
  • Mariner sold 53,009 Prime Medicine shares in Q2 2026, an estimated $176K.
  • Prime Medicine made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #3341 holding.
  • Mariner first reported a position in Prime Medicine in Q3 2025 and has held it in 4 quarters since.
  • Mariner's Prime Medicine position peaked at $273K in Q1 2026.
  • 188 funds tracked by Wall St. Rank held Prime Medicine as of Q2 2026.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.