Adverum Biotechnologies, Inc. - Common Stock, par value $0.0001 per share (ADVM)

Q: What does CUSIP 00773U108 represent in this 13F holders report?

CUSIP 00773U108 is the security identifier for ADVM - Adverum Biotechnologies, Inc. - Common Stock, par value $0.0001 per share used to aggregate holder disclosures.

Q: How many institutions held ADVM - Adverum Biotechnologies, Inc. - Common Stock, par value $0.0001 per share in Q1 2023?

55 institutional investors reported ADVM - Adverum Biotechnologies, Inc. - Common Stock, par value $0.0001 per share for Q1 2023. Use the holders table for investor-level position and value details.

CUSIP: 00773U108

Q1 2023 13F Holders as of 31 Mar 2023

Security type / class: Equity / Common Stock, par value $0.0001 per share
Total 13F shares: 62,720,205
Total 13F value: $44,991,824
Share change: +5,424,686
Put/Call ratio: 0%
SEC-reported price per share: $0.72
Number of holders: 55
Value change: +$4,081,826
Number of buys: 18
Number of sells: 26
Shares outstanding: 22,163,711

Security key

00773U108

Report period

Q1 2023

Institutions

Top holders

ADVM full security history Ownership snapshot Full 13F holder table Newer quarter: Q3 2025 Adverum Biotechnologies, Inc. SEC filings Adverum Biotechnologies, Inc. company facts

Broader feeds

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

Reporting periods

Holder history for CUSIP 00773U108

Newer quarter: Q3 2025

Recent filing periods:

Q4 2025 Q3 2025

Ownership snapshot

Top reported holders of ADVM - Adverum Biotechnologies, Inc. - Common Stock, par value $0.0001 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

FMR LLC

Disclosed value leader

FMR LLC

Comparable rows

15/15

Latest evidence

31 Dec 2022

13F Lead comparable stake: 35% Showing 1-6 of 15 holder rows.

Quick read

FMR LLC leads the comparable SEC ownership view at 35%.

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 FMR LLC's linked filing trail.

Comparable ownership Top 5

FMR LLC 35%

MORGAN STANLEY 32%

BML Capital Management, LLC 32%

BANK OF AMERICA CORP /DE/ 25%

Versant Venture Management, LLC 23%

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
FMR LLC	13F Company 13F	35%	$4,504,380 7,772,874 shares	—	31 Dec 2022
MORGAN STANLEY	13F Company 13F	32%	$4,134,762 7,135,052 shares	—	31 Dec 2022
BML Capital Management, LLC	13F Company 13F	32%	$4,095,430 7,067,179 shares	—	31 Dec 2022
BANK OF AMERICA CORP /DE/	13F Company 13F	25%	$3,237,708 5,591,896 shares	—	31 Dec 2022
Versant Venture Management, LLC	13F Company 13F	23%	$2,937,041 5,068,233 shares	—	31 Dec 2022
Sonic GP LLC	13F Company 13F	21%	$2,637,923 4,552,068 shares	—	31 Dec 2022

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 Q1 2023

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

Institutions

62,720,205

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 Q1 2023 vs Q3 2025 Across Filers

Q3 2025 holders

Q1 2023 holders

Holder diff

Investor	Q3 2025 Shares	Q1 2023 Shares	Share Diff	Share Chg %	Q3 2025 value	Q1 2023 value	Value change	Value Chg %

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

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend