CytomX Therapeutics, Inc.
US ˙ NasdaqGS ˙ US23284F1057

SecurityCTMX / CytomX Therapeutics, Inc.
InstitutionPrivate Advisor Group, LLC
Latest Disclosed Ownership44,002 shares
Latest Disclosed Value $ 206,809
Private Advisor Group, LLC ownership in CTMX / CytomX Therapeutics, Inc.

On April 24, 2026 - Private Advisor Group, LLC filed a 13F-HR form disclosing ownership of 44,002 shares of CytomX Therapeutics, Inc. (US:CTMX) valued at $206,809 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 44,002 shares of CytomX Therapeutics, Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $141,686 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-04-24 2026-03-31 13F CYTOMX THERAPEUTICS COM 23284F105 44,002 0 0.00 207 10.16 0.0009
2026-02-17 2025-12-31 13F CYTOMX THERAPEUTICS COM 23284F105 44,002 0 0.00 187 33.57 0.0008
2025-11-13 2025-09-30 13F CYTOMX THERAPEUTICS COM 23284F105 44,002 0 0.00 140 41.41 0.0007
2025-08-11 2025-06-30 13F CYTOMX THERAPEUTICS COM 23284F105 44,002 0 0.00 100 266.67 0.0005
2025-05-05 2025-03-31 13F CYTOMX THERAPEUTICS COM 23284F105 44,002 0 0.00 28 -40.00 0.0002
2025-02-03 2024-12-31 13F CYTOMX THERAPEUTICS COM 23284F105 44,002 -8,177 -15.67 45 -26.23 0.0003
2024-10-22 2024-09-30 13F CYTOMX THERAPEUTICS COM 23284F105 52,179 0 0.00 62 -3.17 0.0004
2024-08-05 2024-06-30 13F CYTOMX THERAPEUTICS COM 23284F105 52,179 -17,000 -24.57 64 -58.00 0.0004
2024-04-30 2024-03-31 13F CYTOMX THERAPEUTICS COM 23284F105 69,179 -4,000 -5.47 151 32.74 0.0011
2024-02-06 2023-12-31 13F CYTOMX THERAPEUTICS COM 23284F105 73,179 0 0.00 113 20.21 0.0009
2023-11-03 2023-09-30 13F CYTOMX THERAPEUTICS COM 23284F105 73,179 0 0.00 94 -25.40 0.0008
2023-08-10 2023-06-30 13F CYTOMX THERAPEUTICS COM 23284F105 73,179 0 0.00 126 14.55 0.0011
2023-05-10 2023-03-31 13F CYTOMX THERAPEUTICS COM 23284F105 73,179 -10,000 -12.02 110 77.42 0.0011
2023-01-18 2022-12-31 13F CYTOMX THERAPEUTICS COM 23284F105 83,179 0 0.00 63 -48.76 0.0032
2022-10-14 2022-09-30 13F CYTOMX THERAPEUTICS COM 23284F105 83,179 -1,000 -1.19 121 -21.94 0.0014
2022-07-13 2022-06-30 13F CYTOMX THERAPEUTICS COM 23284F105 84,179 0 0.00 155 -30.80 0.0014
2022-05-12 2022-03-31 13F/A-1 CYTOMX THERAPEUTICS COM 23284F105 84,179 0 0.00 224 -38.63 0.0017
2022-05-10 2022-03-31 13F CYTOMX THERAPEUTICS COM 23284F105 84,179 0 365 0.0027
2022-02-10 2021-12-31 13F CYTOMX THERAPEUTICS COM 23284F105 84,179 -40,177 -32.31 365 -42.43 0.0027
2021-10-14 2021-09-30 13F CYTOMX THERAPEUTICS COM 23284F105 124,356 40,177 47.73 634 18.95 0.0040
2021-08-12 2021-06-30 13F CYTOMX THERAPEUTICS COM 23284F105 84,179 -1,000 -1.17 533 -19.00 0.0047
2021-04-22 2021-03-31 13F CYTOMX THERAPEUTICS COM 23284F105 85,179 -1,996 -2.29 658 15.24 0.0063
2021-04-01 2020-12-31 13F CYTOMX THERAPEUTICS COM 23284F105 87,175 -24,003 -21.59 571 -29.94 0.0060
2020-11-02 2020-09-30 13F CYTOMX THERAPEUTICS COM 23284F105 111,178 -21,999 -16.52 815 -26.51 0.0106
2020-08-17 2020-06-30 13F CYTOMX THERAPEUTICS COM 23284F105 133,177 -8,000 -5.67 1,109 2.40 0.0154
2020-05-12 2020-03-31 13F CYTOMX THERAPEUTICS COM 23284F105 141,177 -1,000 -0.70 1,083 -8.30 0.0199
2020-02-10 2019-12-31 13F CYTOMX THERAPEUTICS COM 23284F105 142,177 -93 -0.07 1,181 19.17 0.0184
2019-11-13 2019-09-30 13F CYTOMX THERAPEUTICS COM 23284F105 142,270 -5,000 -3.40 991 -40.01 0.0154
2019-08-14 2019-06-30 13F CYTOMX THERAPEUTICS COM 23284F105 147,270 -15,907 -9.75 1,652 -29.31 0.0299
2019-05-13 2019-03-31 13F CYTOMX THERAPEUTICS COM 23284F105 163,177 -83 -0.05 2,337 -5.19 0.0461
2019-02-08 2018-12-31 13F CYTOMX THERAPEUTICS COM 23284F105 163,260 83 0.05 2,465 -18.35 0.0594
2018-11-01 2018-09-30 13F CYTOMX THERAPEUTICS COM 23284F105 163,177 -2,054 -1.24 3,019 -21.44 0.0619
2018-08-09 2018-06-30 13F CYTOMX THERAPEUTICS COM 23284F105 165,231 165,231 3,843 0.0630
2018-05-09 2018-03-31 13F CYTOMX THERAPEUTICS COM 23284F105 0 -185,187 -100.00 0 -100.00
2018-02-07 2017-12-31 13F CYTOMX THERAPEUTICS COM 23284F105 185,187 0 0.00 4,194 14.56 0.1771
2017-11-13 2017-09-30 13F CYTOMX THERAPEUTICS COM 23284F105 185,187 85,187 85.19 3,661 123.23 0.0905
2017-08-10 2017-06-30 13F CYTOMX THERAPEUTICS COM 23284F105 100,000 -97,177 -49.28 1,640 -51.13 0.0444
2017-05-10 2017-03-31 13F CYTOMX THERAPEUTICS COM 23284F105 197,177 -16,000 -7.51 3,356 42.38 0.0938
2017-02-09 2016-12-31 13F CYTOMX THERAPEUTICS COM 23284F105 213,177 988 0.47 2,357 -28.29 0.0773
2016-11-10 2016-09-30 13F CYTOMX THERAPEUTICS COM 23284F105 212,189 -7,500 -3.41 3,287 47.27 0.1340
2016-08-09 2016-06-30 13F CYTOMX THERAPEUTICS COM 23284F105 219,689 219,689 2,232 0.0902
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.