CytomX Therapeutics, Inc. - Common Stock, $0.00001 par value per share ("Common Stock") (CTMX)

Q: What does CUSIP 23284F105 represent in this 13F holders report?

CUSIP 23284F105 is the security identifier for CTMX - CytomX Therapeutics, Inc. - Common Stock, $0.00001 par value per share ("Common Stock") used to aggregate holder disclosures.

Q: How many institutions held CTMX - CytomX Therapeutics, Inc. - Common Stock, $0.00001 par value per share ("Common Stock") in Q3 2023?

61 institutional investors reported CTMX - CytomX Therapeutics, Inc. - Common Stock, $0.00001 par value per share ("Common Stock") for Q3 2023. Use the holders table for investor-level position and value details.

CUSIP: 23284F105

Q3 2023 13F Holders as of 30 Sep 2023

Security type / class: Equity / Common Stock, $0.00001 par value per share ("Common Stock")
Total 13F shares: 32,393,313
Total 13F value: $41,785,804
Share change: -1,726,664
Put/Call ratio: 9.9%
SEC-reported price per share: $1.29
Number of holders: 61
Value change: -$2,418,556
Number of buys: 13
Number of sells: 32
Shares outstanding: 217,079,600

Security key

23284F105

Report period

Q3 2023

Institutions

Top holders

CTMX full security history Ownership snapshot Full 13F holder table Newer quarter: Q4 2023 Previous quarter: Q2 2023 CytomX Therapeutics, Inc. SEC filings CytomX Therapeutics, Inc. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 23284F105

Newer quarter: Q4 2023 Previous quarter: Q2 2023

Recent filing periods:

Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024

Ownership snapshot

Top reported holders of CTMX - CytomX Therapeutics, Inc. - Common Stock, $0.00001 par value per share ("Common Stock") (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

TANG CAPITAL MANAGEMENT LLC

Disclosed value leader

TANG CAPITAL MANAGEMENT LLC

Comparable rows

15/15

Latest evidence

30 Jun 2023

13F Lead comparable stake: 3% Showing 1-6 of 15 holder rows.

Quick read

TANG CAPITAL MANAGEMENT LLC leads the comparable SEC ownership view at 3%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens TANG CAPITAL MANAGEMENT LLC's linked filing trail.

Comparable ownership Top 5

TANG CAPITAL MANAGEMENT LLC 3%

BVF INC/IL 3%

VANGUARD GROUP INC 2.3%

ACADIAN ASSET MANAGEMENT LLC 1.2%

JACOBS LEVY EQUITY MANAGEMENT, INC 0.75%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
TANG CAPITAL MANAGEMENT LLC	13F Company 13F	3%	$11,352,000 6,600,000 shares	—	30 Jun 2023
BVF INC/IL	13F Company 13F	3%	$11,344,778 6,595,801 shares	—	30 Jun 2023
VANGUARD GROUP INC	13F Company 13F	2.3%	$8,433,062 4,902,943 shares	—	30 Jun 2023
ACADIAN ASSET MANAGEMENT LLC	13F Company 13F	1.2%	$4,562,000 2,653,576 shares	—	30 Jun 2023
JACOBS LEVY EQUITY MANAGEMENT, INC	13F Company 13F	0.75%	$2,788,823 1,621,409 shares	—	30 Jun 2023
Laurion Capital Management LP	13F Company 13F	0.55%	$2,043,747 1,188,225 shares	—	30 Jun 2023

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q3 2023

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

32,393,313

Rows available

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q3 2023 vs Q2 2023 Across Filers

Q2 2023 holders

Q3 2023 holders

Holder diff

-5

Investor	Q2 2023 Shares	Q3 2023 Shares	Share Diff	Share Chg %	Q2 2023 value	Q3 2023 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend