undamentalytics Newsletter

Aura Biosciences, Inc.: which funds bought and sold

Institutions that bought and sold Aura Biosciences shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 94 institutions that filed 13F reports for both quarters added to or opened positions in Aura Biosciences, and 41 cut or closed them. Together they added a net 45.0M shares, +88.4% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 19.0M shares (+86.6%); index fund managers were net buyers of 4.6M shares (+48.3%). 36 opened a new position and 14 sold out entirely.

Bought, Q2 2026 94 institutions, 36 of them new holders Sold, Q2 2026 41 institutions, 14 of them sold out
Net change, all compared +45.0M shares (+88.4%)
Net change, active managers +19.0M shares (+86.6%), 22 bought, 12 sold

Buyers versus sellers

institutions compared, 159
Active managers and hedge funds 22 bought · 12 sold · +19.0M
Index fund managers 8 bought · 1 sold · +4.6M
Other institutions 64 bought · 28 sold · +21.3M

Biggest buyers

by change in shares held
Biggest buyers
Institution Change in shares Shares June 30, 2026 Value
Tcg Crossover Management, LLC +9.5M New position 9.5M $67.7M
Caligan Partners LP Hedge fund +4.1M +1769.9% 4.3M $30.5M
Fcpm Iii Services B.V. +4.1M New position 4.1M $28.8M
Nantahala Capital Management, LLC Hedge fund +3.8M +178.7% 5.9M $41.9M
Orbimed Advisors LLC +3.3M New position 3.3M $23.7M
Montanova Capital, LLC Hedge fund +2.8M +64.8% 7.2M $51.2M
RA Capital Management, L.P. Hedge fund +2.5M New position 2.5M $17.8M
Frazier Life Sciences Management, L.P. +2.0M +39.2% 7.1M $50.4M
Vanguard Capital Management LLC Index funds +1.9M +82.7% 4.1M $29.1M
Balyasny Asset Management L.P. Hedge fund +1.8M +322.2% 2.4M $16.7M
Ecor1 Capital, LLC Hedge fund +1.7M New position 1.7M $11.8M
Redmile Group, LLC +1.7M New position 1.7M $11.8M
Trails Edge Capital Partners, LP +1.4M New position 1.4M $10.2M
Foresite Capital Management Vi LLC +1.3M New position 1.3M $9.5M
Woodline Partners LP Hedge fund +1.2M New position 1.2M $8.6M
Bellevue Group AG +1.2M New position 1.2M $8.3M
Vivo Capital, LLC +1.2M New position 1.2M $8.3M
Blackrock, Inc. Index funds +1.1M +31.3% 4.7M $33.4M
Boothbay Fund Management, LLC Hedge fund +886K +4342.5% 906K $6.4M
Stempoint Capital LP +714K New position 714K $5.1M

Biggest sellers

by change in shares held
Biggest sellers
Institution Change in shares Shares June 30, 2026 Value
Matrix Capital Management Company, LP −6.9M Sold out 0 —
Millennium Management LLC Hedge fund −480K −43.7% 617K $4.4M
Adage Capital Partners Gp, L.L.C. Hedge fund −241K −4.9% 4.6M $32.9M
Price T Rowe Associates Inc Active manager −137K −32.9% 278K $2M
Levin Capital Strategies, L.P. Active manager −103K −11.0% 838K $6M
Maven Securities Ltd −50K Sold out 0 —
UBS Group AG −50K −41.8% 69K $491,533
Morgan Stanley −49K −22.0% 175K $1.2M
American Century Companies Inc Active manager −48K Sold out 0 —
Bank Of America Corp −38K −30.5% 87K $618,850
Brevan Howard Capital Management LP Hedge fund −30K Sold out 0 —
Susquehanna Portfolio Strategies, LLC −29K Sold out 0 —
Susquehanna International Group, LLP −27K Sold out 0 —
Entrypoint Capital, LLC −26K Sold out 0 —
49 Wealth Management, LLC −22K Sold out 0 —
Manufacturers Life Insurance Company, The −21K −37.2% 36K $255,870
Trexquant Investment LP Hedge fund −21K Sold out 0 —
TD Asset Management Inc −21K −50.6% 20K $141,972
Bridgeway Capital Management, LLC Active manager −16K Sold out 0 —
Los Angeles Capital Management LLC Active manager −12K −93.8% 820 $5,822

New positions

largest by value
InstitutionSharesValue June 30, 2026
Tcg Crossover Management, LLC 9.5M $67.7M
Fcpm Iii Services B.V. 4.1M $28.8M
Orbimed Advisors LLC 3.3M $23.7M
RA Capital Management, L.P.Hedge fund 2.5M $17.8M
Ecor1 Capital, LLCHedge fund 1.7M $11.8M
Redmile Group, LLC 1.7M $11.8M
Trails Edge Capital Partners, LP 1.4M $10.2M
Foresite Capital Management Vi LLC 1.3M $9.5M
Woodline Partners LPHedge fund 1.2M $8.6M
Bellevue Group AG 1.2M $8.3M

Sold out

largest by value
InstitutionSharesValue March 31, 2026
Matrix Capital Management Company, LP 6.9M $46.3M
Maven Securities Ltd 50K $334,500
American Century Companies IncActive manager 48K $323,281
Brevan Howard Capital Management LPHedge fund 30K $199,001
Susquehanna Portfolio Strategies, LLC 29K $192,197
Susquehanna International Group, LLP 27K $183,861
Entrypoint Capital, LLC 26K $175,947
49 Wealth Management, LLC 22K $145,200
Trexquant Investment LPHedge fund 21K $140,477
Bridgeway Capital Management, LLCActive manager 16K $108,886

Who holds the shares

13F holdings at June 30, 2026
Institutions reporting
146
Ten largest holders
57.6%
of 13F-reported shares
Index fund managers
14.3%
of 13F-reported shares
Active managers and hedge funds
41.7%
of 13F-reported shares
Buying and selling by type of institution, March 31, 2026 to June 30, 2026
TypeBoughtSoldNewSold outNet change in sharesNet %
Active managers and hedge funds 22 12 9 4 +19.0M +86.6%
Index fund managers 8 1 0 0 +4.6M +48.3%
Other institutions 64 28 27 10 +21.3M +110.0%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

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