Ken Griffin
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Ken Griffin’s CytomX Therapeutics CTMX Stock Holding History

Ken Griffin’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
Q1 		$1.68M Buy
356,400
+305,200
+596% +$1.55M ﹤0.01% 6477
2025
Q4 		$218K Buy
51,200
+7,700
+18% +$29.3K ﹤0.01% 10854
2025
Q3 		$139K Sell
43,500
-62,500
-59% -$141K ﹤0.01% 11595
2025
Q2 		$241K Buy
106,000
+58,100
+121% +$93.7K ﹤0.01% 10296
2025
Q1 		$30.5K Buy
47,900
+43,200
+919% +$33.5K ﹤0.01% 12807
2024
Q4 		$4.84K Sell
4,700
-3,600
-43% -$3.87K ﹤0.01% 13901
2024
Q3 		$9.79K Buy
8,300
+700
+9% +$889 ﹤0.01% 13237
2024
Q2 		$9.27K Buy
7,600
+3,100
+69% +$6.17K ﹤0.01% 13146
2024
Q1 		$9.81K Buy
4,500
+1,300
+41% +$2.4K ﹤0.01% 13481
2023
Q4 		$4.96K Sell
3,200
-200
-6% -$263 ﹤0.01% 13466
2023
Q3 		$4.39K Sell
3,400
-7,200
-68% -$11.3K ﹤0.01% 13488
2023
Q2 		$18.2K Buy
10,600
+3,000
+39% +$4.98K ﹤0.01% 12812
2023
Q1 		$11.5K Buy
7,600
+3,000
+65% +$6.78K ﹤0.01% 13475
2022
Q4 		$7.36K Buy
+4,600
New +$6.81K ﹤0.01% 13829
2022
Q2 		– Sell
-11,400
Closed -$30K – 13020
2022
Q1 		$30K Sell
11,400
-31,300
-73% -$120K ﹤0.01% 13101
2021
Q4 		$185K Buy
42,700
+32,400
+315% +$190K ﹤0.01% 11958
2021
Q3 		$52K Sell
10,300
-8,500
-45% -$45.5K ﹤0.01% 13349
2021
Q2 		$119K Sell
18,800
-5,800
-24% -$45.2K ﹤0.01% 12748
2021
Q1 		$190K Buy
+24,600
New +$195K ﹤0.01% 11761

Other funds holding CTMX

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
KCM
Kynam Capital Management Princeton, New Jersey $1.62B AUM 138.67% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
PA
Perceptive Advisors New York $5.12B AUM 314.02% 1-Year Est. Return
VA
VR Adviser New York $2.68B AUM 422.73% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Point72 Asset Management
Point72 Asset Management Stamford, Connecticut $78.1B AUM 55.25% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
BBA
Baker Bros. Advisors New York $17.4B AUM 131.5% 1-Year Est. Return

Ken Griffin's CTMX Position: Q1 2026 in Review

Ken Griffin increased its CytomX Therapeutics (CTMX) stake by 1,479% in Q1 2026, buying an estimated $25.7M and bringing the position to 5,406,193 shares worth $25.4M. The position accounts for ﹤0.01% of the portfolio, ranked #2036.

Ken Griffin first reported a position in CTMX in Q1 2017 and has held it in 32 quarters since. 179 funds tracked by Wall St. Rank hold CTMX as of Q1 2026.

  • Ken Griffin held 5,406,193 shares of CytomX Therapeutics worth $25.4M as of Q1 2026.
  • Ken Griffin bought 5,063,889 CytomX Therapeutics shares in Q1 2026, an estimated $25.7M.
  • CytomX Therapeutics made up ﹤0.01% of Ken Griffin's portfolio in Q1 2026, its #2036 holding.
  • Ken Griffin first reported a position in CytomX Therapeutics in Q1 2017 and has held it in 32 quarters since.
  • 179 funds tracked by Wall St. Rank held CytomX Therapeutics as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.