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5%+ stakes · Schedule 13D and 13G

Onterris Inc: 5%+ holders

Who has reported owning 5% or more of Onterris Inc, from Schedule 13D and 13G filings: each holder's stake as filed, the timeline, and the purpose each 13D states, quoted.

At 5% or more4
Filings10
Latest filing2026-09-08

Onterris Inc has 10 Schedule 13D or 13G filings on record since 2025-07-30. 4 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.

Holders

HolderPercentSharesLatestEvent date
Fmr LLC12.7%4,461,078SCHEDULE 13G, 2026-09-082026-08-31
Baron Capital Group, Inc.6.12%2,160,463SCHEDULE 13G/A, 2025-11-142025-09-30
Nomura Asset Management International Inc.6%2,097,249SCHEDULE 13G, 2026-08-142026-06-30
Goldman Sachs Asset Management, L.P.5%1,826,307SCHEDULE 13G, 2026-05-112026-03-31
William Blair Investment Management, LLC3.7%1,315,018SCHEDULE 13G/A, 2025-11-122025-09-30
Managed Account Advisors, LLC2.7%957,130SCHEDULE 13G/A, 2025-08-142025-06-30
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC0%0SCHEDULE 13G/A, 2025-10-242025-09-30
Macquarie Group Limited0%0SCHEDULE 13G/A, 2026-02-132025-12-31
The Vanguard Group0%0SCHEDULE 13G/A, 2026-03-272026-03-13

Timeline

FiledHolderPercentFiling
2025-07-30William Blair Investment Management, LLC6.8%SCHEDULE 13G/A
2025-08-14Managed Account Advisors, LLC2.7%SCHEDULE 13G/A
2025-10-24UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC0%SCHEDULE 13G/A
2025-11-12William Blair Investment Management, LLC3.7%SCHEDULE 13G/A
2025-11-14Baron Capital Group, Inc.6.12%SCHEDULE 13G/A
2026-02-13Macquarie Group Limited0%SCHEDULE 13G/A
2026-03-27The Vanguard Group0%SCHEDULE 13G/A
2026-05-11Goldman Sachs Asset Management, L.P.5%SCHEDULE 13G
2026-08-14Nomura Asset Management International Inc.6%SCHEDULE 13G
2026-09-08Fmr LLC12.7%SCHEDULE 13G

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Where this comes from

Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.

Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.

Cite this page

Permanent URL: https://mentionfox.com/stakes/onterris
Last updated 2026-09-27
Primary record: SEC filing 1 · SEC filing 2 · SEC filing 3 · SEC filing 4
Onterris Inc 5%+ holders: 4 at 5% or more, largest Fmr LLC 12.7%. MentionFox, 2026-09-27. https://mentionfox.com/stakes/onterris