Cytomx TherapeuticsCTMX

13F holders, Q1 2025 (March 31)
66holders −4
7new positions
11sold out
4famous investors
$0.64avg. 13F price*

At the end of Q1 2025, 66 institutions reported holding Cytomx Therapeutics Inc. (CTMX) in their 13F filings, down 4 from Q4 2024. 7 opened new positions and 11 sold out. The largest holders were Tang Capital Management LLC ($4.3M), BVF Inc. ($3.3M) and Vanguard Group Inc. ($3.3M). 4 famous investors held it, including Steve Cohen (0.0% of Point72 Asset Management's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).

Company
Cytomx Therapeutics Inc.
CUSIP
23284F105
Latest filing quarter
Q2 2026

History

Number of 13F holders

050100150200 Q1 2024: 88Q1 2024Q2 2024: 74Q2 2024Q3 2024: 69Q3 2024Q4 2024: 70Q4 2024Q1 2025: 66Q1 2025Q2 2025: 83Q2 2025Q3 2025: 103Q3 2025Q4 2025: 122Q4 2025Q1 2026: 179Q1 2026Q2 2026: 178Q2 2026

Total Exit/New Position Q4 2024 → Q1 2025

InstitutionsTotal Value
New Positions7$1.9M
Exits11$1.4M

All 13F filers, Q4 2024 → Q1 2025: 4,941,317 shares bought and 6,383,310 shares sold, net −1,441,993 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 66 holders

Tang Capital Management LLC 0.24% Reduce -8.1% 6,717,825 $4.3M
BVF Inc. 0.14% No change 5,228,461 $3.3M
Vanguard Group Inc. 0.00% Reduce -0.9% 5,117,376 $3.3M
Prosight Management, LP 0.82% Add +0.6% 3,930,008 $2.5M
Acadian Asset Management LLC 0.01% Add +3.1% 3,234,035 $2.1M
Millennium Management 0.00% Reduce -12.3% 2,826,276 $1.8M
Point72 Asset Management 0.00% No change 2,650,000 $1.7M
Woodline Partners LP 0.01% New 1,657,306 $1.1M
Laurion Capital Management LP 0.07% Add +3.6% 1,293,686 $823K
BlackRock, Inc. 0.00% Reduce -5.9% 1,166,384 $742K
Renaissance Technologies 0.00% Reduce -14.2% 1,156,000 $735K
Ra Capital Management, L.P. 0.01% New 1,000,000 $636K
Geode Capital Management, LLC 0.00% Add +5.2% 857,958 $546K
Gsa Capital Partners LLP 0.04% Add +1862.0% 762,930 $485K
UBS Group AG 0.00% Add +46.8% 746,788 $475K
Assenagon Asset Management S.A. 0.00% Add +18.6% 711,454 $452K
Jacobs Levy Equity Management, Inc. 0.00% Reduce -55.6% 686,208 $436K
Congress Park Capital LLC 0.16% Reduce -30.2% 673,686 $428K
Schonfeld Strategic Advisors LLC 0.00% Reduce -57.3% 589,332 $375K
Sei Investments Co. 0.00% No change 487,902 $310K
Bank of America Corp. 0.00% Add +22851.7% 463,854 $295K
Formidable Asset Management, LLC 0.04% Reduce -7.5% 353,840 $225K
Tidal Investments LLC 0.00% Reduce -7.5% 353,840 $225K
State Street Corp. 0.00% No change 320,043 $203K
Bridgeway Capital Management, LLC 0.00% Reduce -7.5% 306,624 $195K
Bank of New York Mellon Corp 0.00% No change 241,980 $154K
Northern Trust Corp. 0.00% No change 150,632 $96K
Aspire Growth Partners LLC 0.08% Add +126.2% 92,254 $89K
Two Sigma Investments, LP 0.00% Reduce -63.7% 116,475 $74K
FMR LLC 0.00% Reduce -64.7% 108,311 $69K
JPMorgan Chase & Co. 0.00% Reduce -87.0% 105,294 $67K
Forefront Analytics, LLC 0.07% Add +55.7% 100,070 $63K
Universal- Beteiligungs- und Servicegesellschaft mbH 0.00% New 97,123 $62K
Marshall Wace, LLP 0.00% New 85,539 $55K
Prudential Financial Inc. 0.00% Add +26.8% 81,500 $52K
Velan Capital Investment Management LP 0.05% Add +114.3% 75,000 $48K
Goldman Sachs Group Inc. 0.00% New 61,719 $39K
Morgan Stanley 0.00% Add +358.9% 60,584 $39K
Qube Research & Technologies Ltd 0.00% Reduce -0.5% 54,808 $35K
Commonwealth Equity Services, LLC 0.00% Add +1.9% 54,243 $34K
Miller Financial Services LLC 0.05% Add +104.0% 51,000 $32K
ADAR1 Capital Management, LLC 0.01% Reduce -67.6% 47,036 $30K
Russell Investments Group, Ltd. 0.00% Add +30.9% 44,576 $28K
Private Advisor Group, LLC 0.00% No change 44,002 $28K
LPL Financial LLC 0.00% No change 42,315 $27K
Simplex Trading, LLC 0.00% Add +6577.1% 33,853 $21K
Traphagen Investment Advisors LLC 0.00% No change 30,500 $19K
Susquehanna International Group, LLP 0.00% Reduce -51.9% 28,734 $18K
Charles Schwab Investment Management Inc. 0.00% Add +0.2% 24,877 $16K
Jane Street Group, LLC 0.00% Reduce -7.8% 19,962 $13K
Vanguard Personalized Indexing Management, LLC 0.00% Reduce -52.1% 17,708 $11K
WestHill Financial Advisors, Inc. 0.00% No change 17,082 $11K
Osaic Holdings, Inc. 0.00% Add +1664.4% 15,350 $10K
Virtu Financial LLC 0.00% Reduce -79.3% 11,797 $8K
Nierenberg Investment Management Company, LLC 0.00% No change 12,555 $8K
IPG Investment Advisors LLC 0.00% No change 12,500 $8K
Tower Research Capital LLC (TRC) 0.00% Add +214.0% 10,277 $7K
Peregrine Asset Advisers, Inc. 0.00% No change 10,000 $6K
Meridian Wealth Management, LLC 0.00% New 10,000 $6K
US Bancorp \de 0.00% Reduce -76.0% 7,392 $5K
Group One Trading LLC 0.00% Reduce -2.4% 4,124 $3K
SBI Securities Co., Ltd. 0.00% Reduce -90.2% 108 $69
Citadel Advisors 0.00% Reduce -100.0% 100 $64
BNP Paribas Financial Markets 0.00% Reduce -78.2% 17 $11
Barclays PLC 0.00% New 2 $1
Lazard Asset Management LLC 0.00% Reduce -85.2% 816 $0

"% of holder's portfolio" is CTMX's weight in each manager's 13F, not the share of Cytomx Therapeutics Inc. the manager owns.