$AURA

$6.18 -$0.12 (1.9%) Close

$AURA Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 103.7M shares outstanding

Who owns AURA?

By type of holder

Institutions 92.0% Insiders 8.0% Everyone else 0.0%

Concentration Top 10 holders own 52.2%

TCG Crossover Management, LLC 9.2% · Montanova Capital, LLC 7.0%

Institutional ownership

92.0%

+42.9 pts vs last qtr

Institutional holders

146

+20 vs last qtr

Net shares bought

+44.5M

by institutions in Q2 2026

New / sold out

36 / 16

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

TCG Crossover Management, LLC NEW +9.5M
Caligan Partners LP +4.1M

Biggest sellers in Q2 2026

Matrix Capital Management Company, LP SOLD OUT −6.9M
Millennium Management LLC −480.2K

Who is planning to sell?

Notices of proposed sale, last 12 months

$876K

10 notices from 6 people

Shares covered

164.7K

0.16% of the company

Arranged in advance

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

de los Pinos Elisabet Officer $323K
Hopkins Janet Jill Officer $196K

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2021–FY2025

+1069.3%

+84.92% a year

Each share's claim on the business

−91.4%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $43.5M

over 5 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years0% 3–5 years35% 1–3 years21% Under 1 year44%

Quarterly turnover

60.2%

of institutional shares changed hands

Top 10 managers, median time held

1.3 years

Super Investors

Investment managers reporting AURA on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
TC TCG Crossover Management, LLC	9.5M	9.19%	NEW	Q2 '26	1.6%
Shares held by quarter Peak holding9.5M (Q2'26) Change over 8 quarters+9.5M Share of the company9.190% TCG Crossover Management, LLC's full portfolio →
MC Montanova Capital, LLC	7.2M	6.95%	+2.8M (+64.8%)	2025	0.9%
Shares held by quarter Peak holding7.2M (Q2'26) Change over 8 quarters+7.2M Share of the company6.950% Montanova Capital, LLC's full portfolio →

TCG Crossover Management, LLC

9.5M

% of company

9.19%

Change vs last qtr

NEW

Held since

Q2 '26

Montanova Capital, LLC

7.2M

% of company

6.95%

Change vs last qtr

+2.8M (+64.8%)

Held since

2025

28 more super investors behind a free account

See every manager holding Aura Biosciences, Inc., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting AURA on Form N-PORT; together they hold 11.0% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$20.6M	2.9M	2.80%	0.00%	June 30, 2026
IR iShares Russell 2000 ETF iShares Trust	$8.32M	1.2M	1.13%	0.01%	June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$20.6M

% of company

2.80%

% of the fund

0.00%

As of

June 30, 2026

iShares Russell 2000 ETF

iShares Trust

Position value

$8.32M

% of company

1.13%

% of the fund

0.01%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Aura Biosciences, Inc. and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
HN Holles Natalie C. Insider	1.2M	1.11%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company1.110% Holles Natalie C.'s insider activity →
DL de los Pinos Elisabet Insider	830.4K	0.80%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.800% de los Pinos Elisabet's insider activity →

Holles Natalie C.

Insider

1.2M

% of company

1.11%

Change vs last qtr

—

Held since

—

de los Pinos Elisabet

Insider

830.4K

% of company

0.80%

Change vs last qtr

—

Held since

—

13 more holders behind a free account

See every insider and 5%+ holder of Aura Biosciences, Inc..

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