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CytomX Therapeutics (CTMX) Institutional Ownership

CytomX Therapeutics logo
$3.34 -0.11 (-3.04%)
As of 11:52 AM Eastern
This is a fair market value price provided by Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for CytomX Therapeutics (NASDAQ:CTMX)

Current
Institutional Ownership
Percentage
67.77%
Number of
Institutional Buyers
(last 12 months)
101
Total
Institutional Inflows
(last 12 months)
$365.08M
Number of
Institutional Sellers
(last 12 months)
22
Total
Institutional Outflows
(last 12 months)
$57.36M
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CTMX Institutional Buying and Selling by Quarter

CytomX Therapeutics Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/18/2026 Stonepine Capital Management LLC205,000$768.75M0.4%N/A0.094%
8/17/2026Seven Fleet Capital Management LP1,085,398$4.07B0.7%N/A0.498%
8/17/2026 Bank of America Corp DE15,082,617$56.56M0.0%N/A6.922%
8/15/2026 Freestone Grove Partners LP18,972$71K0.0%N/A0.009%
8/15/2026 Jupiter Topco LLC46,700$175K0.0%N/A0.021%
8/15/2026 Elmind Capital LP4,550,000$17.06B4.3%N/A2.088%
8/15/2026 AWM Investment Company Inc.150,000$562K0.0%N/A0.069%
8/14/2026 ADAR1 Capital Management LLC3,365,118$12.62M0.6%N/A1.544%
8/14/2026 Hsbc Holdings PLC26,636$103K0.0%N/A0.012%
8/14/2026 Canada Pension Plan Investment Board141,500$531K0.0%N/A0.065%
8/14/2026 Legal & General Group Plc123,313$462K0.0%N/A0.057%
8/14/2026 The Manufacturers Life Insurance Company 47,795$179K0.0%N/A0.022%
8/14/2026 Algert Global LLC90,900$341K0.0%N/A0.042%
8/13/2026 DLD Asset Management LP15,000$56K0.0%N/A0.009%
8/13/2026 Forefront Analytics LLC25,033$94K0.1%N/A0.015%
8/12/2026 TRB Wealth Management LLC13,435$50K0.0%N/A0.008%
8/12/2026 Landscape Capital Management L.L.C.94,240$353K0.0%N/A0.055%
8/11/2026 E Fund Management Co. Ltd.31,214$117K0.0%N/A0.018%
8/11/2026 Nierenberg Investment Management Company LLC12,555$47.08M0.0%N/A0.007%
8/7/2026 BlackRock Inc.17,559,822$65.85M0.0%N/A10.318%
8/7/2026 Deutsche Bank AG663,038$2.49M0.0%N/A0.390%
8/7/2026 Pursue Wealth Partners LLC14,492$54K0.0%N/A0.009%
8/6/2026 Bank of New York Mellon Corp684,539$2.57M0.0%N/A0.402%
8/6/2026 State of Wyoming54,987$206K0.0%N/A0.032%
8/3/2026 Walleye Capital LLC126,526$474K0.0%N/A0.074%
6/4/2026Seven Fleet Capital Management LP1,085,398$5.10M1.6%+2,119.7%0.638%
6/3/2026 DV Trading LLC714,000$3.36M0.1%N/A0.420%
5/29/2026 Perceptive Advisors LLC10,098,824$47.46M0.9%+4.3%5.934%
5/19/2026 Bank of America Corp DE10,202,785$47.95M0.0%+1,064.3%5.995%
5/19/2026Janus Henderson Group PLC46,700$220K0.0%N/A0.027%
5/19/2026 Ally Bridge Group NY LLC900,000$4.23M3.4%N/A0.529%
5/18/2026 ADAR1 Capital Management LLC3,410,190$16.03M0.9%-20.4%2.004%
5/18/2026California State Teachers Retirement System88,379$415K0.0%N/A0.052%
5/18/2026 Elmind Capital LP4,550,000$21.39M6.1%+550.0%2.673%
5/18/2026 Eversept Partners LP3,188,514$14.99M0.8%+27.2%1.874%
5/18/2026 Exome Asset Management LLC521,468$2.45M1.3%-30.0%0.306%
5/15/2026 OMERS ADMINISTRATION Corp62,400$293K0.0%-28.9%0.037%
5/14/2026 Gabelli Funds LLC33,000$155K0.0%N/A0.019%
5/14/2026 GABELLI & Co INVESTMENT ADVISERS INC.11,000$52K0.0%N/A0.006%
5/14/2026 Siren L.L.C.3,457,711$16.25M0.5%N/A2.032%
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5/14/2026 Sei Investments Co.248,248$1.17M0.0%+100.0%0.146%
5/14/2026 Lido Advisors LLC10,425$49K0.0%N/A0.006%
5/14/2026 Forefront Analytics LLC12,476$59K0.1%-33.3%0.007%
5/14/2026 State of Wyoming52,692$248K0.0%+145.0%0.031%
5/13/2026 First Trust Advisors LP568,562$2.67M0.0%+34.4%0.334%
5/7/2026 Dimensional Fund Advisors LP1,930,920$9.07M0.0%+49.7%1.135%
5/7/2026 Swiss National Bank319,600$1.50M0.0%N/A0.188%
5/5/2026 Bank of New York Mellon Corp289,868$1.36M0.0%-11.7%0.170%
4/27/2026 HB Wealth Management LLC50,000$235K0.0%+100.0%0.029%
4/27/2026 Y Intercept Hong Kong Ltd167,514$787K0.0%N/A0.098%
4/23/2026 Formidable Asset Management LLC18,263$86K0.0%-60.1%0.011%
4/22/2026 Pictet Asset Management Holding SA16,606$78K0.0%N/A0.010%
4/21/2026 Cannon Global Investment Management LLC96,100$452K0.9%N/A0.056%
4/20/2026 Assenagon Asset Management S.A.364,173$1.71M0.0%-38.6%0.214%
3/20/2026 Hsbc Holdings PLC12,230$52K0.0%N/A0.007%
2/26/2026Seven Fleet Capital Management LP48,898$208K0.2%N/A0.029%
2/18/2026Empowered Funds LLC31,332$133K0.0%N/A0.018%
2/18/2026 XTX Topco Ltd47,991$204K0.0%+63.9%0.028%
2/18/2026 Ikarian Capital LLC3,172,616$13.52M1.0%-5.9%1.872%
2/18/2026 Virtus Investment Advisers LLC63,491$270K0.1%N/A0.037%
2/18/2026 Twinbeech Capital LP17,600$75K0.0%N/A0.010%
2/18/2026 Orbimed Advisors LLC3,525,650$15.02M0.3%-58.3%2.081%
2/18/2026 Millennium Management LLC289,653$1.23M0.0%-79.1%0.171%
2/18/2026 Evolve Private Wealth LLC14,834$63K0.0%N/A0.009%
2/18/2026 Elmind Capital LP700,000$2.98M0.9%N/A0.413%
2/18/2026 Engineers Gate Manager LP26,539$113K0.0%N/A0.016%
2/18/2026 Eversept Partners LP2,507,090$10.68M0.5%N/A1.480%
2/18/2026 Boothbay Fund Management LLC894,663$3.81M0.1%-27.7%0.528%
2/17/2026 Jain Global LLC21,212$90K0.0%-37.0%0.013%
2/17/2026 Mangrove Partners IM LLC26,265$112K0.0%N/A0.016%
2/16/2026 Squarepoint Ops LLC49,897$213K0.0%+4.5%0.029%
2/16/2026 OMERS ADMINISTRATION Corp87,800$374K0.0%N/A0.052%
2/16/2026 Truvestments Capital LLC27,428$117K0.0%+60.4%0.016%
2/16/2026 Mariner LLC22,180$94K0.0%+116.4%0.013%
2/16/2026 Barclays PLC336,525$1.43M0.0%+22,485.6%0.199%
2/13/2026 Marshall Wace LLP1,156,936$4.93M0.0%+4.7%0.683%
2/13/2026 Hudson Bay Capital Management LP50,990$217K0.0%N/A0.030%
2/13/2026 Bank of Nova Scotia13,661$58K0.0%N/A0.008%
2/13/2026 Rafferty Asset Management LLC273,584$1.17M0.0%N/A0.161%
2/13/2026 First Trust Advisors LP423,168$1.80M0.0%+5.3%0.250%
2/13/2026 Charles Schwab Investment Management Inc.68,687$293K0.0%-22.4%0.041%
2/13/2026 State Street Corp5,140,931$21.90M0.0%+697.1%3.034%
2/13/2026 Wells Fargo & Company MN6,605$28K0.0%+83.2%0.004%
2/12/2026 HRT Financial LP71,867$306K0.0%N/A0.042%
2/12/2026Brooklyn Investment Group61,474$258K0.0%-29.5%0.036%
2/12/2026 Financial Engines Advisors L.L.C.3,828,717$16.31M0.0%+177.2%2.260%
2/12/2026 Dimensional Fund Advisors LP1,289,656$5.49M0.0%+185.9%0.761%
2/12/2026 Informed Momentum Co LLC203,823$868K0.1%N/A0.120%
2/11/2026 Paces Ferry Wealth Advisors LLC14,822$63K0.0%N/A0.009%
2/11/2026Empowered Funds LLC31,332$133K0.0%N/A0.018%
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2/11/2026 LPL Financial LLC113,440$483K0.0%+30.9%0.067%
2/11/2026 Schulhoff & Co. Inc.374,850$1.60M0.7%N/A0.221%
2/11/2026 State of Wyoming21,511$92K0.0%N/A0.013%
2/10/2026 Goldman Sachs Group Inc.2,460,944$10.48M0.0%+449.6%1.452%
2/9/2026 Geode Capital Management LLC1,525,666$6.50M0.0%-2.8%0.900%
2/9/2026Jefferies Financial Group Inc.23,764$101K0.0%-55.1%0.014%
2/5/2026 May Hill Capital LLC10,856$46K0.0%N/A0.006%
2/5/2026 Baader Bank Aktiengesellschaft45,000$192K0.0%N/A0.027%
1/29/2026 Sanctuary Advisors LLC19,140$82K0.0%-44.7%0.011%
1/29/2026 China Universal Asset Management Co. Ltd.27,609$118K0.0%N/A0.016%


CTMX Institutional Ownership - Frequently Asked Questions

During the previous two years, 146 institutional investors and hedge funds held shares of CytomX Therapeutics. The most heavily invested institutionals were Elmind Capital LP ($17.06B), Seven Fleet Capital Management LP ($4.07B), Stonepine Capital Management LLC ($768.75M), BlackRock Inc. ($65.85M), Bank of America Corp DE ($56.56M), Perceptive Advisors LLC ($47.46M), and Nierenberg Investment Management Company LLC ($47.08M).Learn more on CytomX Therapeutics' institutional investors.

67.77% of CytomX Therapeutics' stock is owned by institutional investors. Learn more on CTMX's institutional investor holdings.

Of the 134 institutional investors that purchased CytomX Therapeutics' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Bank of America Corp DE ($25.41M), BlackRock Inc. ($17.56M), Elmind Capital LP ($9.10M), Orbimed Advisors LLC ($8.46M), Commodore Capital LP ($7.69M), Perceptive Advisors LLC ($7.41M), and Vivo Capital LLC ($5.77M).

Institutional investors have bought a total of 91,155,213 shares in the last 24 months. This purchase volume represents approximately $365.08M in transactions.

Of the 22 institutional investors that sold CytomX Therapeutics' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Orbimed Advisors LLC ($4.94M), Prosight Management LP ($2.95M), Vivo Capital LLC ($2.88M), Millennium Management LLC ($1.10M), ADAR1 Capital Management LLC ($872.58K), Vanguard Group Inc. ($431.99K), and Assenagon Asset Management S.A. ($365.79K).

Institutional investors have sold a total of 14,966,878 shares in the last 24 months. This volume of shares sold represents approximately $57.36M in transactions.


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Institutional ownership data for NASDAQ:CTMX is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 8/18/2026. New 13F filings are added each quarter as they're published.
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