Company · Ownership research

Aura Biosciences, Inc. AURA

CIK 0001501796 · CUSIP 05153U107

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 05153U107 (AURA), not CUSIP 05153U907 (AURA), and does not merge CUSIPs.

This page lists the top 20 of 126 rows by value; the complete set is available through the API.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	Matrix Capital Management Company, LP CIK 1410830 · View history	$46.31M 6,922,870 shares	100.00%	0(0.00%)Unchanged	SEC filing ↗ May 14, 2026	▾
02	Frazier Life Sciences Management, L.P. CIK 1892134 · View history	$34.12M 5,100,000 shares	0.88%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2026	▾
03	ADAGE CAPITAL PARTNERS GP, L.L.C. CIK 1165408 · View history	$32.65M 4,881,125 shares	0.05%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2026	▾
04	Long Focus Capital Management, LLC CIK 1602716 · View history	$30.91M 4,619,582 shares	1.36%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2026	▾
05	SUVRETTA CAPITAL MANAGEMENT, LLC CIK 1569064 · View history	$29.25M 4,372,884 shares	0.79%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2026	▾
06	BlackRock, Inc. CIK 2012383 · View history	$23.99M 3,586,640 shares	0.00%	+26.22K(+0.70%)Added	SEC filing ↗ May 13, 2026	▾
07	Medicxi Ventures Management (Jersey) Ltd CIK 1715579 · View history	$20.34M 3,039,892 shares	2.07%	0(0.00%)Unchanged	SEC filing ↗ Apr 21, 2026	▾
08	VANGUARD CAPITAL MANAGEMENT LLC CIK 2100119 · Amended · View history	$15.01M 2,243,828 shares	0.00%	—	SEC filing ↗ May 15, 2026	▾
09	Nantahala Capital Management, LLC CIK 1472322 · View history	$14.17M 2,117,697 shares	0.88%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2026	▾
10	FRANKLIN RESOURCES INC CIK 38777 · View history	$13.87M 2,072,726 shares	0.00%	-125.70K(-5.70%)Reduced	SEC filing ↗ May 13, 2026	▾
11	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$8.77M 1,310,862 shares	0.00%	+55.41K(+4.40%)Added	SEC filing ↗ May 15, 2026	▾
12	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$7.34M 1,097,627 shares	0.01%	+480.29K(+77.80%)Added	SEC filing ↗ May 15, 2026	▾
13	STATE STREET CORP CIK 93751 · View history	$6.45M 964,670 shares	0.00%	+38.14K(+4.10%)Added	SEC filing ↗ May 15, 2026	▾
14	LEVIN CAPITAL STRATEGIES, L.P. CIK 1354821 · View history	$6.30M 941,400 shares	0.48%	-94.19K(-9.10%)Reduced	SEC filing ↗ May 13, 2026	▾
15	B Group, Inc. CIK 2043476 · View history	$4.00M 597,576 shares	2.96%	+25.00K(+4.40%)Added	SEC filing ↗ May 15, 2026	▾
16	ACORN CAPITAL ADVISORS, LLC CIK 2054410 · View history	$3.99M 595,744 shares	1.13%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2026	▾
17	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$3.73M 558,158 shares	0.00%	+40.24K(+7.80%)Added	SEC filing ↗ May 7, 2026	▾
18	Balyasny Asset Management L.P. CIK 1218710 · View history	$3.73M 557,654 shares	0.01%	+557.65KNew	SEC filing ↗ May 15, 2026	▾
19	Regency Capital Management Inc.\DE CIK 1863894 · View history	$3.56M 532,495 shares	1.59%	-6.09K(-1.10%)Reduced	SEC filing ↗ May 5, 2026	▾
20	NORTHERN TRUST CORP CIK 73124 · View history	$2.88M 430,522 shares	0.00%	+17.71K(+4.30%)Added	SEC filing ↗ May 14, 2026	▾

Showing 20 / 126 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

126

Cancelled or null records excluded

Disclosed shares

50,880,662

Not deduplicated across managers

Disclosed value

$340.35M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Aura Biosciences, Inc. · Q1 2026

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.