Group One Trading
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Group One Trading’s CytomX Therapeutics CTMX Stock Holding History

Group One Trading’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 		$526K Buy
112,000
+52,800
+89% +$268K ﹤0.01% 3294
2025
Q4 		$252K Sell
59,200
-260,200
-81% -$988K ﹤0.01% 4166
2025
Q3 		$1.02M Buy
319,400
+71,100
+29% +$160K ﹤0.01% 3013
2025
Q2 		$564K Buy
248,300
+244,400
+6,267% +$394K ﹤0.01% 3284
2025
Q1 		$2.48K Sell
3,900
-4,100
-51% -$3.18K ﹤0.01% 6936
2024
Q4 		$8.24K Buy
8,000
+4,300
+116% +$4.63K ﹤0.01% 6197
2024
Q3 		$4.37K Buy
3,700
+1,700
+85% +$2.16K ﹤0.01% 5932
2024
Q2 		$2.44K Sell
2,000
-17,400
-90% -$34.6K ﹤0.01% 6163
2024
Q1 		$42.3K Buy
19,400
+17,200
+782% +$31.7K ﹤0.01% 4849
2023
Q4 		$3.41K Sell
2,200
-9,900
-82% -$13K ﹤0.01% 6652
2023
Q3 		$15.6K Buy
12,100
+2,100
+21% +$3.31K ﹤0.01% 6077
2023
Q2 		$17.2K Buy
10,000
+9,900
+9,900% +$16.4K ﹤0.01% 6077
2023
Q1 		$151 Sell
100
-12,900
-99% -$29.2K ﹤0.01% 7012
2022
Q4 		$20.8K Buy
13,000
+11,300
+665% +$16.7K ﹤0.01% 5577
2022
Q3 		$2K Buy
+1,700
New +$2.62K ﹤0.01% 7124
2022
Q2 		– Sell
-500
Closed -$1K – 7922
2022
Q1 		$1K Sell
500
-2,600
-84% -$9.98K ﹤0.01% 7813
2021
Q4 		$13K Buy
3,100
+1,900
+158% +$11.1K ﹤0.01% 7214
2021
Q3 		$6K Sell
1,200
-200
-14% -$1.07K ﹤0.01% 7676
2021
Q2 		$9K Hold
1,400
– – ﹤0.01% 7553
2021
Q1 		$11K Buy
+1,400
New +$11.1K ﹤0.01% 7005
2019
Q4 		– Sell
-800
Closed -$6K – 5176
2019
Q3 		$6K Buy
+800
New +$7.89K ﹤0.01% 4716
2018
Q4 		– Sell
-300
Closed -$6K – 4948
2018
Q3 		$6K Sell
300
-300
-50% -$6.83K ﹤0.01% 4777
2018
Q2 		$14K Sell
600
-3,900
-87% -$99.6K ﹤0.01% 4509
2018
Q1 		$128K Buy
4,500
+3,500
+350% +$99.9K ﹤0.01% 3096
2017
Q4 		$21K Buy
+1,000
New +$20.7K ﹤0.01% 4125

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 $2.9T AUM 29.55% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Group One Trading's CTMX Position: Q1 2026 in Review

Group One Trading opened a new position in CytomX Therapeutics (CTMX) in Q1 2026: 154,134 shares worth $724K. The stake represents ﹤0.01% of the portfolio and ranks #2996 among its holdings. This is a return to the name: Group One Trading previously reported a position in CTMX as recently as Q1 2025.

Group One Trading first reported a position in CTMX in Q4 2017 and has held it in 18 quarters since. 179 funds tracked by Wall St. Rank hold CTMX as of Q1 2026.

  • Group One Trading held 154,134 shares of CytomX Therapeutics worth $724K as of Q1 2026.
  • CytomX Therapeutics was a new Group One Trading position in Q1 2026.
  • CytomX Therapeutics made up ﹤0.01% of Group One Trading's portfolio in Q1 2026, its #2996 holding.
  • Group One Trading first reported a position in CytomX Therapeutics in Q4 2017 and has held it in 18 quarters since.
  • 179 funds tracked by Wall St. Rank held CytomX Therapeutics as of Q1 2026.

Based on Group One Trading's 13F filing for Q1 2026, filed 13 May 2026.