Onterris, Inc.: which funds bought and sold

Institutions that bought and sold Onterris 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, 87 institutions that filed 13F reports for both quarters added to or opened positions in Onterris, and 87 cut or closed them. Together they added a net 5.0M shares, +15.3% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 2.4M shares (+31.5%); index fund managers were net buyers of 362K shares (+5.0%). 24 opened a new position and 38 sold out entirely.

Bought, Q2 2026 87 institutions, 24 of them new holders Sold, Q2 2026 87 institutions, 38 of them sold out

Net change, all compared +5.0M shares (+15.3%)

Net change, active managers +2.4M shares (+31.5%), 16 bought, 17 sold

Buyers versus sellers

institutions compared, 191

87 bought 17 87 sold

Active managers and hedge funds 16 bought · 17 sold · +2.4M

Index fund managers 7 bought · 2 sold · +362K

Other institutions 64 bought · 68 sold · +2.2M

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Corvex Management LP Hedge fund	+1.8M New position	1.8M	$35.8M
Nomura Holdings Inc	+1.2M New position	1.2M	$25.2M
FMR LLC Active manager	+875K +154.0%	1.4M	$29.2M
Assenagon Asset Management S.A.	+716K New position	716K	$14.5M
UBS Group AG	+706K +318.1%	927K	$18.7M
Nomura Asset Management International Inc.	+566K +36.9%	2.1M	$42.4M
Alliancebernstein L.P. Active manager	+359K +31.8%	1.5M	$32.6M
Private Capital Management, LLC	+297K New position	297K	$6M
Arrowmark Colorado Holdings LLC	+200K +142.6%	339K	$6.9M
Dimensional Fund Advisors LP	+145K +16.9%	1.0M	$20.3M
Royce & Associates LP Active manager	+139K +14.6%	1.1M	$22.1M
Penn Capital Management Company, LLC Active manager	+139K New position	139K	$2.8M
Millennium Management LLC Hedge fund	+130K +41.8%	441K	$8.9M
Blackrock, Inc. Index funds	+124K +3.9%	3.3M	$66.2M
Centerbook Partners LP Hedge fund	+124K +88.1%	264K	$5.3M
Tudor Investment Corp Et Al Hedge fund	+117K +69.2%	285K	$5.8M
Raiffeisen Bank International AG	+113K +130.8%	200K	$4.1M
Nexpoint Asset Management, L.P.	+110K New position	110K	$2.2M
Morgan Stanley	+109K +21.5%	618K	$12.5M
Russell Investments Group, Ltd.	+93K +46.4%	295K	$6M

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Corvex Management LP Hedge fund	+1.8M New position	1.8M	$35.8M
FMR LLC Active manager	+875K +154.0%	1.4M	$29.2M
Alliancebernstein L.P. Active manager	+359K +31.8%	1.5M	$32.6M
Royce & Associates LP Active manager	+139K +14.6%	1.1M	$22.1M
Penn Capital Management Company, LLC Active manager	+139K New position	139K	$2.8M
Millennium Management LLC Hedge fund	+130K +41.8%	441K	$8.9M
Centerbook Partners LP Hedge fund	+124K +88.1%	264K	$5.3M
Tudor Investment Corp Et Al Hedge fund	+117K +69.2%	285K	$5.8M
Bridgeway Capital Management, LLC Active manager	+85K New position	85K	$1.7M
Panagora Asset Management Inc Active manager	+48K +35.6%	182K	$3.7M

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Algert Global LLC Hedge fund	−541K −90.2%	58K	$1.2M
Fred Alger Management, LLC Active manager	−388K Sold out	0	—
Avalon Trust Co	−385K −88.3%	51K	$1M
Peregrine Capital Management LLC	−269K Sold out	0	—
UBS Am, A Distinct Business Unit Of UBS Asset Management Americas LLC	−264K −17.4%	1.3M	$25.3M
Summit Creek Advisors LLC	−236K −46.3%	275K	$5.6M
Jane Street Group, LLC	−145K Sold out	0	—
Mackenzie Financial Corp	−134K Sold out	0	—
Nuveen, LLC	−114K −41.8%	159K	$3.2M
Essex Investment Management Co LLC	−111K Sold out	0	—
Principal Financial Group Inc	−102K −7.6%	1.2M	$25.1M
Bank Of America Corp	−96K −25.8%	277K	$5.6M
Blair William & Co	−94K −35.2%	173K	$3.5M
AQR Capital Management LLC Hedge fund	−81K −73.3%	30K	$599,065
BNP Paribas Financial Markets	−81K −54.1%	69K	$1.4M
Sei Investments Co	−75K −48.9%	79K	$1.6M
Qube Research & Technologies Ltd Hedge fund	−70K Sold out	0	—
Citigroup Inc	−61K −39.0%	95K	$1.9M
Connor, Clark & Lunn Investment Management Ltd.	−60K −55.7%	48K	$961,390
Gsa Capital Partners LLP	−59K Sold out	0	—

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Algert Global LLC Hedge fund	−541K −90.2%	58K	$1.2M
Fred Alger Management, LLC Active manager	−388K Sold out	0	—
AQR Capital Management LLC Hedge fund	−81K −73.3%	30K	$599,065
Qube Research & Technologies Ltd Hedge fund	−70K Sold out	0	—
Exoduspoint Capital Management, LP Hedge fund	−54K Sold out	0	—
Trexquant Investment LP Hedge fund	−51K Sold out	0	—
Congress Asset Management Co Active manager	−50K Sold out	0	—
Citadel Advisors LLC Hedge fund	−40K −18.2%	182K	$3.7M
Squarepoint Ops LLC Hedge fund	−36K Sold out	0	—
Man Group PLC Hedge fund	−35K Sold out	0	—

New positions

largest by value

Institution	Shares	Value June 30, 2026
Corvex Management LPHedge fund	1.8M	$35.8M
Nomura Holdings Inc	1.2M	$25.2M
Assenagon Asset Management S.A.	716K	$14.5M
Private Capital Management, LLC	297K	$6M
Penn Capital Management Company, LLCActive manager	139K	$2.8M
Nexpoint Asset Management, L.P.	110K	$2.2M
Bridgeway Capital Management, LLCActive manager	85K	$1.7M
Empowered Funds, LLC	85K	$1.7M
Caption Management, LLC	64K	$1.3M
Rhumbline AdvisersIndex funds	51K	$1M

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Fred Alger Management, LLCActive manager	388K	$8.5M
Peregrine Capital Management LLC	269K	$5.9M
Jane Street Group, LLC	145K	$3.2M
Mackenzie Financial Corp	134K	$2.9M
Essex Investment Management Co LLC	111K	$2.4M
Qube Research & Technologies LtdHedge fund	70K	$1.5M
Gsa Capital Partners LLP	59K	$1.3M
HRT Financial LP	55K	$1.2M
Exoduspoint Capital Management, LPHedge fund	54K	$1.2M
Trexquant Investment LPHedge fund	51K	$1.1M

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 156
Ten largest holders: 47.6%
Index fund managers: 20.0%
Active managers and hedge funds: 26.7%

Buying and selling by type of institution, March 31, 2026 to June 30, 2026
Type	Bought	Sold	New	Sold out	Net change in shares	Net %
Active managers and hedge funds	16	17	6	11	+2.4M	+31.5%
Index fund managers	7	2	1	0	+362K	+5.0%
Other institutions	64	68	17	27	+2.2M	+12.5%

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.

What these filings can and cannot tell you

Form 13F lists the long positions in US-listed shares held by investment managers with more than $100 million in such holdings. Managers file it up to 45 days after each quarter ends, so this page shows what funds held at the end of each quarter, not what they are doing now: a position may have changed since. Short positions, most derivatives and smaller managers are not included, and a cut can mean a fund lost clients or rebalanced rather than a view on Onterris.

Only managers that filed a holdings report for both quarters are compared (191 here). 6 other holders are left out: first-time or late filers, firms that changed their SEC registration, and filings that withheld positions under confidential treatment, any of which would otherwise look like a new position or a sale. Figures are as reported by each manager in the SEC's quarterly 13F data sets; option positions are excluded.

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