Stock Ownership/CTMX

CYTOMX THERAPEUTICS INC. (CTMX): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in CTMX · Health Care. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
12
13F filers
Aggregate Value
$113.5M
Across holders
Last Price
$3.29
2026-08-24
Sector
Health Care
GICS
Quarterly fund activity5 increased6 reduced4 exited
Full exits: Hudson Bay Capital Management LP, BALYASNY ASSET MANAGEMENT LLC, Schonfeld Strategic Advisors LLC, Brevan Howard Capital Management LP
Institutional Holders of CTMX
↗
12 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
Point72 Asset Management, L.P.
CIK 0001603466
Hedge Fund7.81M$29.3M25.8%0.0%Reduced$-241KQ2 2026
BAKER BROS. ADVISORS LP
CIK 0001263508
Hedge Fund4.98M$18.7M16.4%0.1%Unchanged+$0Q2 2026
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund4.13M$15.5M13.7%0.0%Added+$5.3MQ2 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund3.11M$11.7M10.3%0.0%Reduced+$10.6MQ2 2026
MARSHALL WACE, LLP
CIK 0001318757
Hedge Fund3.02M$11.3M10.0%0.0%Reduced$-9.2MQ2 2026
Woodline Partners LP
CIK 0001784547
Hedge Fund2.04M$7.7M6.7%0.0%Added+$148KQ2 2026
Qube Research & Technologies Ltd
CIK 0001729829
Hedge Fund1.82M$6.8M6.0%0.0%Reduced$-1.6MQ2 2026
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund1.69M$6.3M5.6%0.0%Reduced$-7.4MQ2 2026
TUDOR INVESTMENT CORP ET AL
CIK 0000923093
Hedge Fund1.38M$5.2M4.6%0.0%Added—Q2 2026
Walleye Capital LLC
CIK 0001758720
Hedge Fund127K$474K0.4%0.0%Added—Q2 2026
Point72 Asset Management, L.P.Reduced
Hedge Fund
$29.3M· 25.8% of total· 0.0% port· 7.81M sh· $-241K QoQ· Q2 2026
BAKER BROS. ADVISORS LPUnchanged
Hedge Fund
$18.7M· 16.4% of total· 0.1% port· 4.98M sh· +$0 QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPAdded
Hedge Fund
$15.5M· 13.7% of total· 0.0% port· 4.13M sh· +$5.3M QoQ· Q2 2026
CITADEL ADVISORS LLCReduced
Hedge Fund
$11.7M· 10.3% of total· 0.0% port· 3.11M sh· +$10.6M QoQ· Q2 2026
MARSHALL WACE, LLPReduced
Hedge Fund
$11.3M· 10.0% of total· 0.0% port· 3.02M sh· $-9.2M QoQ· Q2 2026
Woodline Partners LPAdded
Hedge Fund
$7.7M· 6.7% of total· 0.0% port· 2.04M sh· +$148K QoQ· Q2 2026
Qube Research & Technologies LtdReduced
Hedge Fund
$6.8M· 6.0% of total· 0.0% port· 1.82M sh· $-1.6M QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCReduced
Hedge Fund
$6.3M· 5.6% of total· 0.0% port· 1.69M sh· $-7.4M QoQ· Q2 2026
TUDOR INVESTMENT CORP ET ALAdded
Hedge Fund
$5.2M· 4.6% of total· 0.0% port· 1.38M sh· — QoQ· Q2 2026
Walleye Capital LLCAdded
Hedge Fund
$474K· 0.4% of total· 0.0% port· 127K sh· — QoQ· Q2 2026
Squarepoint Ops LLCReduced
Hedge Fund
$421K· 0.4% of total· 0.0% port· 112K sh· $-484K QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$158K· 0.1% of total· 0.0% port· 42K sh· — QoQ· Q2 2026
1–10 of 12
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