Mariner
CERS icon

Mariner’s Cerus CERS Stock Holding History

Mariner’s Portfolio CERS Stock Details CERS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$141K Sell
48,335
-24,206
-33% -$58.7K ﹤0.01% 3255
2026
Q1 		$132K Buy
72,541
+18,015
+33% +$39.3K ﹤0.01% 3271
2025
Q4 		$112K Buy
54,526
+13,984
+34% +$24.2K ﹤0.01% 3313
2025
Q3 		$64.5K Sell
40,542
-3,341
-8% -$4.51K ﹤0.01% 3420
2025
Q2 		$61.9K Buy
+43,883
New +$58.5K ﹤0.01% 3317
2023
Q1 		– Sell
-86,375
Closed -$315K – 2802
2022
Q4 		$315K Buy
86,375
+75,963
+730% +$286K ﹤0.01% 1987
2022
Q3 		$37K Buy
+10,412
New +$49.8K ﹤0.01% 2342

Other funds holding CERS

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
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
BBA
Baker Bros. Advisors New York $20B AUM 154.41% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
SM
Senvest Management New York $3.41B AUM 66.27% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
Sumitomo Mitsui Trust Group
Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $175B AUM 40.63% 1-Year Est. Return

Mariner's CERS Position: Q2 2026 in Review

Mariner reduced its Cerus (CERS) stake by 33% in Q2 2026, selling an estimated $58.7K and leaving 48,335 shares worth $141K. The position accounts for ﹤0.01% of the portfolio, ranked #3255.

Mariner first reported a position in CERS in Q3 2022 and has held it in 7 quarters since. The position peaked at $315K in Q4 2022. 186 funds tracked by Wall St. Rank hold CERS as of Q2 2026.

  • Mariner held 48,335 shares of Cerus worth $141K as of Q2 2026.
  • Mariner sold 24,206 Cerus shares in Q2 2026, an estimated $58.7K.
  • Cerus made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #3255 holding.
  • Mariner first reported a position in Cerus in Q3 2022 and has held it in 7 quarters since.
  • Mariner's Cerus position peaked at $315K in Q4 2022.
  • 186 funds tracked by Wall St. Rank held Cerus as of Q2 2026.

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