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 		$2.95M Buy
628,600
+617,200
+5,414% +$3.13M 0.01% 1719
2025
Q4 		$48.6K Sell
11,400
-38,100
-77% -$145K ﹤0.01% 5625
2025
Q3 		$158K Buy
49,500
+39,500
+395% +$89K ﹤0.01% 4925
2025
Q2 		$22.7K Buy
+10,000
New +$16.1K ﹤0.01% 6178
2025
Q1 		– Sell
-100
Closed -$103 – 7713
2024
Q4 		$103 Buy
+100
New +$108 ﹤0.01% 7097
2024
Q3 		– Sell
-12,400
Closed -$15.1K – 6744
2024
Q2 		$15.1K Buy
12,400
+12,300
+12,300% +$24.5K ﹤0.01% 5399
2024
Q1 		$218 Buy
+100
New +$185 ﹤0.01% 6802
2022
Q2 		– Sell
-300
Closed -$1K – 7924
2022
Q1 		$1K Hold
300
– – ﹤0.01% 7815
2021
Q4 		$1K Buy
+300
New +$1.76K ﹤0.01% 7974
2021
Q3 		– Sell
-8,000
Closed -$51K – 8246
2021
Q2 		$51K Buy
+8,000
New +$62.3K ﹤0.01% 6561
2020
Q4 		– Sell
-200
Closed -$1K – 6563
2020
Q3 		$1K Hold
200
– – ﹤0.01% 5904
2020
Q2 		$2K Buy
+200
New +$1.86K ﹤0.01% 5543
2019
Q4 		– Sell
-1,200
Closed -$9K – 5177
2019
Q3 		$9K Buy
+1,200
New +$11.8K ﹤0.01% 4620
2018
Q3 		– Sell
-1,000
Closed -$23K – 5249
2018
Q2 		$23K Sell
1,000
-5,200
-84% -$133K ﹤0.01% 4318
2018
Q1 		$176K Buy
6,200
+3,900
+170% +$111K ﹤0.01% 2879
2017
Q4 		$49K Buy
+2,300
New +$47.7K ﹤0.01% 3738

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.