Jane Street
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Jane Street’s CytomX Therapeutics CTMX Stock Holding History

Jane Street’s Portfolio CTMX Stock Details CTMX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		– Sell
-997,510
Closed -$3.81M – 11776
2026
Q1 		$4.69M Buy
997,510
+390,292
+64% +$1.98M ﹤0.01% 3621
2025
Q4 		$2.59M Buy
607,218
+205,851
+51% +$782K ﹤0.01% 4328
2025
Q3 		$1.28M Buy
401,367
+389,399
+3,254% +$877K ﹤0.01% 5799
2025
Q2 		$27.2K Sell
11,968
-7,994
-40% -$12.9K ﹤0.01% 9308
2025
Q1 		$12.7K Sell
19,962
-1,691
-8% -$1.31K ﹤0.01% 9180
2024
Q4 		$22.3K Sell
21,653
-5,578
-20% -$6K ﹤0.01% 9118
2024
Q3 		$32.1K Sell
27,231
-52,470
-66% -$66.6K ﹤0.01% 9237
2024
Q2 		$97.2K Sell
79,701
-104,047
-57% -$207K ﹤0.01% 8734
2024
Q1 		$401K Buy
183,748
+154,509
+528% +$285K ﹤0.01% 7085
2023
Q4 		$45.3K Buy
+29,239
New +$38.4K ﹤0.01% 8795
2023
Q3 		– Sell
-19,364
Closed -$33.3K – 8733
2023
Q2 		$33.3K Sell
19,364
-21,217
-52% -$35.2K ﹤0.01% 8289
2023
Q1 		$61.3K Sell
40,581
-978
-2% -$2.21K ﹤0.01% 8400
2022
Q4 		$66.5K Buy
+41,559
New +$61.5K ﹤0.01% 8266
2022
Q2 		– Sell
-20,061
Closed -$54K – 9788
2022
Q1 		$54K Buy
20,061
+1,241
+7% +$4.76K ﹤0.01% 9665
2021
Q4 		$81K Buy
+18,820
New +$110K ﹤0.01% 9329
2021
Q3 		– Sell
-84,724
Closed -$536K – 10023
2021
Q2 		$536K Buy
84,724
+67,330
+387% +$524K ﹤0.01% 7096
2021
Q1 		$134K Buy
17,394
+2,045
+13% +$16.2K ﹤0.01% 8511
2020
Q4 		$101K Sell
15,349
-3,811
-20% -$27.2K ﹤0.01% 7197
2020
Q3 		$127K Buy
19,160
+3,121
+19% +$23.1K ﹤0.01% 6671
2020
Q2 		$134K Buy
+16,039
New +$149K ﹤0.01% 6593

Other funds holding CTMX

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
KCM
Kynam Capital Management Princeton, New Jersey $1.81B AUM 192.15% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
PA
Perceptive Advisors New York $6.66B AUM 360.84% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Point72 Asset Management
Point72 Asset Management Stamford, Connecticut $90.7B AUM 77.13% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
VA
VR Adviser New York $3.3B AUM 525.74% 1-Year Est. Return

Jane Street's CTMX Position: Q2 2026 in Review

Jane Street sold out of CytomX Therapeutics (CTMX) in Q2 2026, closing a stake of 997,510 shares — an estimated $3.81M sold.

Jane Street first reported a position in CTMX in Q2 2020 and held it in 20 quarters. The position peaked at $4.69M in Q1 2026. 178 funds tracked by Wall St. Rank hold CTMX as of Q2 2026.

  • Jane Street reported no remaining CytomX Therapeutics position as of Q2 2026 after selling out during the quarter.
  • Jane Street sold 997,510 CytomX Therapeutics shares in Q2 2026, an estimated $3.81M.
  • Jane Street first reported a position in CytomX Therapeutics in Q2 2020 and held it in 20 quarters.
  • Jane Street's CytomX Therapeutics position peaked at $4.69M in Q1 2026.
  • 178 funds tracked by Wall St. Rank held CytomX Therapeutics as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.