Jane Street
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Jane Street’s Castor Maritime CTRM Stock Holding History

Jane Street’s Portfolio CTRM Stock Details CTRM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2023
Q1 		– Sell
-4,130
Closed -$46.3K – 9159
2022
Q4 		$46.3K Sell
4,130
-18,590
-82% -$232K ﹤0.01% 8393
2022
Q3 		$254K Sell
22,720
-650
-3% -$9.29K ﹤0.01% 7830
2022
Q2 		$313K Buy
23,370
+8,080
+53% +$150K ﹤0.01% 7543
2022
Q1 		$281K Buy
15,290
+7,290
+91% +$113K ﹤0.01% 8503
2021
Q4 		$114K Buy
8,000
+1,360
+20% +$27.9K ﹤0.01% 9173
2021
Q3 		$162K Buy
+6,640
New +$149K ﹤0.01% 9007

Other funds holding CTRM

TL
TowerView LLC New York $155M AUM 30.14% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
AA
Apriem Advisors Irvine, California $1.05B AUM 22.09% 1-Year Est. Return
CC
Centiva Capital New York $13.6B AUM 20% 1-Year Est. Return
Simplex Trading
Simplex Trading Chicago, Illinois $149B AUM 62.07% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
Group One Trading
Group One Trading Chicago, Illinois $52.2B AUM 104.56% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
SS
SBI Securities Tokyo, Japan $4.4B AUM 74.25% 1-Year Est. Return

Jane Street's CTRM Position: Q1 2026 in Review

Jane Street sold out of Castor Maritime (CTRM) in Q1 2026, closing a stake of 17,898 shares — an estimated $37K sold.

Jane Street first reported a position in CTRM in Q1 2021 and held it in 11 quarters. The position peaked at $210K in Q3 2021. 19 funds tracked by Wall St. Rank hold CTRM as of Q1 2026.

  • Jane Street reported no remaining Castor Maritime position as of Q1 2026 after selling out during the quarter.
  • Jane Street sold 17,898 Castor Maritime shares in Q1 2026, an estimated $37K.
  • Jane Street first reported a position in Castor Maritime in Q1 2021 and held it in 11 quarters.
  • Jane Street's Castor Maritime position peaked at $210K in Q3 2021.
  • 19 funds tracked by Wall St. Rank held Castor Maritime as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.