undamentalytics Newsletter

Alamar Biosciences, Inc.: which funds bought and sold

Institutions that bought and sold Alamar 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, 83 institutions that filed 13F reports for both quarters added to or opened positions in Alamar Biosciences, and 0 cut or closed them. Together they added a net 23.9M shares, — on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 10.3M shares; index fund managers were net buyers of 2.1M shares. 83 opened a new position and 0 sold out entirely.

Bought, Q2 2026 83 institutions, 83 of them new holders Sold, Q2 2026 0 institutions, 0 of them sold out
Net change, all compared +23.9M shares (—)
Net change, active managers +10.3M shares (—), 23 bought, 0 sold

Buyers versus sellers

institutions compared, 83
Active managers and hedge funds 23 bought · 0 sold · +10.3M
Index fund managers 8 bought · 0 sold · +2.1M
Other institutions 52 bought · 0 sold · +11.4M

Biggest buyers

by change in shares held
Biggest buyers
Institution Change in shares Shares June 30, 2026 Value
Sands Capital Alternatives, LLC +4.2M New position 4.2M $115M
Samsara Biocapital, LLC +2.5M New position 2.5M $67.2M
T. Rowe Price Investment Management, Inc. Active manager +2.2M New position 2.2M $59.7M
ARK Investment Management LLC Active manager +1.4M New position 1.4M $37.2M
Braidwell LP Hedge fund +1.1M New position 1.1M $29.4M
Alliancebernstein L.P. Active manager +1.0M New position 1.0M $27.2M
Hhlr Advisors, Ltd. +956K New position 956K $25.9M
Blackrock, Inc. Index funds +911K New position 911K $24.7M
Millennium Management LLC Hedge fund +866K New position 866K $23.5M
FMR LLC Active manager +829K New position 829K $22.5M
Pura Vida Investments, LLC +756K New position 756K $20.5M
Emerald Advisers, LLC +647K New position 647K $17.5M
Artisan Partners Limited Partnership Active manager +614K New position 614K $16.6M
Deerfield Management Company, L.P. Hedge fund +600K New position 600K $16.3M
Vanguard Capital Management LLC Index funds +463K New position 463K $12.6M
Wellington Management Group LLP Active manager +458K New position 458K $12.4M
Emerald Mutual Fund Advisers Trust +422K New position 422K $11.4M
Ameriprise Financial Inc +419K New position 419K $11.3M
Geode Capital Management, LLC Index funds +330K New position 330K $8.9M
Woodline Partners LP Hedge fund +243K New position 243K $6.6M

Biggest sellers

by change in shares held
Biggest sellers
Institution Change in shares Shares June 30, 2026 Value
No institution cut its holding.

New positions

largest by value
InstitutionSharesValue June 30, 2026
Sands Capital Alternatives, LLC 4.2M $115M
Samsara Biocapital, LLC 2.5M $67.2M
T. Rowe Price Investment Management, Inc.Active manager 2.2M $59.7M
ARK Investment Management LLCActive manager 1.4M $37.2M
Braidwell LPHedge fund 1.1M $29.4M
Alliancebernstein L.P.Active manager 1.0M $27.2M
Hhlr Advisors, Ltd. 956K $25.9M
Blackrock, Inc.Index funds 911K $24.7M
Millennium Management LLCHedge fund 866K $23.5M
FMR LLCActive manager 829K $22.5M

Sold out

largest by value
InstitutionSharesValue March 31, 2026
No institution sold its whole holding.

Who holds the shares

13F holdings at June 30, 2026
Institutions reporting
86
Ten largest holders
65.4%
of 13F-reported shares
Index fund managers
8.6%
of 13F-reported shares
Active managers and hedge funds
44.2%
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 23 0 23 0 +10.3M —
Index fund managers 8 0 8 0 +2.1M —
Other institutions 52 0 52 0 +11.4M —

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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