Mariner
CGEM icon

Mariner’s Cullinan Oncology CGEM Stock Holding History

Mariner’s Portfolio CGEM Stock Details CGEM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$1.35M Buy
74,273
+11,555
+18% +$172K ﹤0.01% 1730
2026
Q1 		$891K Buy
62,718
+13,587
+28% +$175K ﹤0.01% 2054
2025
Q4 		$508K Buy
49,131
+20,980
+75% +$189K ﹤0.01% 2436
2025
Q3 		$167K Buy
28,151
+11,661
+71% +$85.4K ﹤0.01% 3237
2025
Q2 		$124K Buy
16,490
+4,323
+36% +$34.7K ﹤0.01% 3192
2025
Q1 		$92.1K Sell
12,167
-22,734
-65% -$218K ﹤0.01% 3205
2024
Q4 		$425K Buy
34,901
+19,411
+125% +$279K ﹤0.01% 2320
2024
Q3 		$259K Sell
15,490
-864
-5% -$15.3K ﹤0.01% 2702
2024
Q2 		$285K Buy
+16,354
New +$348K ﹤0.01% 2492

Other funds holding CGEM

MB
MPM BioImpact Boston, Massachusetts $1.64B AUM 245.64% 1-Year Est. Return
LCM
Lynx1 Capital Management San Juan, Puerto Rico $866M AUM 231.68% 1-Year Est. Return
BI
BVF Inc San Francisco, California $3.91B AUM 304.52% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
KCM
Kynam Capital Management Princeton, New Jersey $1.81B AUM 192.15% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
RI
RTW Investments New York $11.7B AUM 174.13% 1-Year Est. Return
SL
Siren LLC Greenwich, Connecticut $4.94B AUM 244.43% 1-Year Est. Return

Mariner's CGEM Position: Q2 2026 in Review

Mariner increased its Cullinan Oncology (CGEM) stake by 18% in Q2 2026, buying an estimated $172K and bringing the position to 74,273 shares worth $1.35M. The position accounts for ﹤0.01% of the portfolio, ranked #1730.

Mariner first reported a position in CGEM in Q2 2024 and has held it in 9 quarters since. 184 funds tracked by Wall St. Rank hold CGEM as of Q2 2026.

  • Mariner held 74,273 shares of Cullinan Oncology worth $1.35M as of Q2 2026.
  • Mariner bought 11,555 Cullinan Oncology shares in Q2 2026, an estimated $172K.
  • Cullinan Oncology made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #1730 holding.
  • Mariner first reported a position in Cullinan Oncology in Q2 2024 and has held it in 9 quarters since.
  • 184 funds tracked by Wall St. Rank held Cullinan Oncology as of Q2 2026.

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