ALX ONCOLOGY HOLDINGS INC - Common Stock, par value $0.001 per share (ALXO)

Q: What does CUSIP 00166B105 represent in this 13F holders report?

CUSIP 00166B105 is the security identifier for ALXO - ALX ONCOLOGY HOLDINGS INC - Common Stock, par value $0.001 per share used to aggregate holder disclosures.

Q: How many institutions held ALXO - ALX ONCOLOGY HOLDINGS INC - Common Stock, par value $0.001 per share in Q4 2020?

89 institutional investors reported ALXO - ALX ONCOLOGY HOLDINGS INC - Common Stock, par value $0.001 per share for Q4 2020. Use the holders table for investor-level position and value details.

CUSIP: 00166B105

Q4 2020 13F Holders as of 31 Dec 2020

Security type / class: Equity / Common Stock, par value $0.001 per share
Total 13F shares: 32,294,048
Total 13F value: $2,779,048,270
Share change: +4,650,917
Put/Call ratio: 71%
SEC-reported price per share: $86.20
Number of holders: 89
Value change: +$439,356,967
Number of buys: 68
Number of sells: 17
Shares outstanding: 133,751,136

Security key

00166B105

Report period

Q4 2020

Institutions

Top holders

ALXO full security history Ownership snapshot Full 13F holder table Newer quarter: Q1 2021 Previous quarter: Q3 2020 ALX ONCOLOGY HOLDINGS INC SEC filings ALX ONCOLOGY HOLDINGS INC company facts

Broader feeds

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

Reporting periods

Holder history for CUSIP 00166B105

Newer quarter: Q1 2021 Previous quarter: Q3 2020

Recent filing periods:

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

Ownership snapshot

Top reported holders of ALXO - ALX ONCOLOGY HOLDINGS INC - Common Stock, par value $0.001 per share (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

venBio Partners LLC

Disclosed value leader

venBio Partners LLC

Comparable rows

15/15

Latest evidence

30 Sep 2020

13F Lead comparable stake: 7.3% Showing 1-6 of 15 holder rows.

Quick read

venBio Partners LLC leads the comparable SEC ownership view at 7.3%.

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 venBio Partners LLC's linked filing trail.

Comparable ownership Top 5

venBio Partners LLC 7.3%

Vivo Capital, LLC 3.2%

Logos Global Management LP 2.3%

Board of Trustees of The Leland S... 1.1%

WELLINGTON MANAGEMENT GROUP LLP 0.77%

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
venBio Partners LLC	13F Company 13F	7.3%	$366,075,000 9,699,925 shares	—	30 Sep 2020
Vivo Capital, LLC	13F Company 13F	3.2%	$159,265,000 4,220,048 shares	—	30 Sep 2020
Logos Global Management LP	13F Company 13F	2.3%	$118,390,000 3,136,981 shares	—	30 Sep 2020
Board of Trustees of The Leland Stanford Junior University	13F Company 13F	1.1%	$54,604,000 1,446,854 shares	—	30 Sep 2020
WELLINGTON MANAGEMENT GROUP LLP	13F Company 13F	0.77%	$39,042,000 1,034,528 shares	—	30 Sep 2020
Foresite Capital Management IV, LLC	13F Company 13F	0.73%	$36,740,000 973,514 shares	—	30 Sep 2020

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 Q4 2020

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

Institutions

32,294,048

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 Q4 2020 vs Q3 2020 Across Filers

Q3 2020 holders

Q4 2020 holders

Holder diff

Investor	Q3 2020 Shares	Q4 2020 Shares	Share Diff	Share Chg %	Q3 2020 value	Q4 2020 value	Value change	Value Chg %

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

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend