Adverum Bio Ownership | Who Owns Adverum Bio?

Adverum Bio Ownership Summary

Adverum Bio is owned by 46.74% institutional investors, 12.40% insiders, and 40.86% retail investors. Bml capital management is the largest institutional shareholder, holding 14.55% of ADVM shares. Franklin Biotechnology Discv A(acc)USD is the top mutual fund, with 5.45% of its assets in Adverum Bio shares.

ADVM Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Adverum Bio	46.74%	12.40%	40.86%
Sector	Healthcare Stocks	42.50%	10.81%	46.69%
Industry	Biotech Stocks	45.24%	10.75%	44.01%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Bml capital management	3.06M	14.55%	$13.85M
Frazier life sciences management	2.08M	9.89%	$9.41M
Tcg crossover management	1.67M	7.94%	$7.56M
Vanguard group	872.04K	4.15%	$3.95M
5am venture management	541.67K	2.58%	$2.45M
Versant venture management	506.82K	2.43%	$2.37M
Goldman sachs group	402.58K	1.92%	$1.82M
Renaissance	363.50K	1.73%	$1.65M
Pale fire capital se	363.28K	1.73%	$1.65M
Blackrock funding, inc. /de	311.39K	1.48%	$1.41M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Bml capital management	3.06M	12.68%	$13.85M
Versant venture management	506.82K	2.73%	$2.37M
5am venture management	541.67K	0.90%	$2.45M
Tcg crossover management	1.67M	0.37%	$7.56M
Frazier life sciences management	2.08M	0.28%	$9.41M
Pale fire capital se	363.28K	0.18%	$1.65M
Regeneron pharmaceuticals	180.91K	0.12%	$819.52K
Soleus capital management	287.25K	0.07%	$1.30M
Quinn opportunity partners	41.42K	0.01%	$187.62K
Waverly advisors	160.99K	0.01%	$729.29K

Top Buyers

Holder	Shares	% Assets	Change
Frazier life sciences management	2.08M	0.28%	1.01M
Two sigma investments, lp	88.67K	0.00%	69.91K
Two sigma advisers, lp	38.07K	0.00%	27.39K
Vanguard personalized indexing management	12.80K	0.00%	12.80K
Royal bank of canada	13.46K	-	10.70K

Top Sellers

Holder	Shares	% Assets	Change
Franklin resources	-	-	-1.76M
Renaissance	363.50K	0.00%	-207.17K
Tcg crossover management	1.67M	0.37%	-128.31K
Blackrock funding, inc. /de	311.39K	-	-103.09K
Goldman sachs group	402.58K	0.00%	-94.71K

New Positions

Holder	Shares	% Assets	Change	Value
Vanguard personalized indexing management	12.80K	0.00%	12.80K	$58.01K
Physician wealth advisors	217.00	0.00%	217.00	$984.00
Srs capital advisors	19.00	-	19.00	$86.00
Sound income strategies	1.00	-	1.00	$5.00

Sold Out

Holder	Change
Frazier financial advisors	-1.00
Eversource wealth advisors	-7.00
Gamma investing	-47.00
Nisa investment advisors	-84.00
Rothschild investment	-100.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Sep 30, 2025	47	-11.32%	9,820,748	-23.56%	46	1.25%	16	-38.46%	17	6.25%
Jun 30, 2025	57	-18.57%	13,501,908	-11.69%	64	1.21%	27	-6.90%	19	-17.39%
Mar 31, 2025	71	2.90%	15,830,377	-0.28%	75	1.31%	29	-19.44%	23	109.09%
Dec 31, 2024	1	-	506,821	-	2	41.19%	-	-	-	-
Sep 30, 2024	1	-50.00%	506,821	-79.85%	2	1.04%	-	-	-	-100.00%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Franklin Biotechnology Discv A(acc)USD	1.14M	5.45%	-
Franklin Biotechnology Discovery A	624.74K	3.00%	-
Vanguard US Total Market Shares ETF	586.25K	2.82%	-
Vanguard Total Stock Mkt Idx Inv	573.71K	2.73%	-12.54K
Fidelity Small Cap Index	215.28K	1.03%	-757.00
Vanguard Institutional Extnd Mkt Idx Tr	196.33K	0.94%	-89.46K
iShares Russell 2000 Value ETF	181.86K	0.87%	-
CREF Stock R1	140.59K	0.68%	-93.24K
Vanguard Russell 2000 ETF	103.78K	0.50%	954.00
State St Russell Sm/Mid Cp® Indx NL Cl C	94.53K	0.45%	-

Recent Insider Transactions

Date	Name	Role	Activity	Value
May 15, 2025	Soparkar Peter	CHIEF OPERATING OFFICER	Sell	$5.92K
May 15, 2025	Seyedkazemi Setareh	CHIEF DEVELOPMENT OFFICER	Sell	$1.85K
May 15, 2025	Fischer Laurent	CEO, PRESIDENT AND DIRECTOR	Sell	$18.25K
Mar 27, 2025	Leonard Braden Michael	-	Buy	$86.09K
Apr 22, 2025	Leonard Braden Michael	-	Buy	$900.00K

Insider Transactions Trends

Date	Buy	Sell
2025 Q2	3	3
2025 Q1	10	-
2024 Q3	3	-
2024 Q2	-	-
2024 Q1	2	-

ADVM Ownership FAQ

Who Owns Adverum Bio?

Adverum Bio shareholders are primarily institutional investors at 46.74%, followed by 12.40% insiders and 40.86% retail investors. The average institutional ownership in Adverum Bio's industry, Biotech Stocks , is 45.24%, which Adverum Bio exceeds.

Who owns the most shares of Adverum Bio?

Adverum Bio’s largest shareholders are Bml capital management (3.06M shares, 14.55%), Frazier life sciences management (2.08M shares, 9.89%), and Tcg crossover management (1.67M shares, 7.94%). Together, they hold 32.38% of Adverum Bio’s total shares outstanding.

Does Blackrock own Adverum Bio?

BlackRock is not among the top 10 institutional shareholders of Adverum Bio.

Who is Adverum Bio’s biggest shareholder by percentage of total assets invested?

Bml capital management is Adverum Bio’s biggest shareholder by percentage of total assets invested, with 12.68% of its assets in 3.06M Adverum Bio shares, valued at 13.85M$.

Who is the top mutual fund holder of Adverum Bio shares?

Franklin Biotechnology Discv A(acc)USD is the top mutual fund holder of Adverum Bio shares, with 5.45% of its total shares outstanding invested in 1.14M Adverum Bio shares.

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