Onterris, Inc.
ONT- Exchange
- NYSE
- Industry
- Services-Management Consulting Services
- SEC CIK
- 0001643615
No open-market purchases or sales by Onterris, Inc. insiders were filed in the last 90 days; 156 institutions reported holding it in 13F filings for Q2 2026, worth $764.8M in total; no superinvestor holds it.
Holders of 5% or more of ONT
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Onterris, Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| FMR LLC | 13G | 12.70%4.46M shares | New | Sep 8, 20261 filing | Sep 8, 2026 | SEC |
| Bamco Inc | 13G/A | 6.12%2.16M shares | −1.66 ppfrom 7.78% | Feb 14, 20253 filings | Nov 14, 2025 | SEC |
| Nomura Asset Management International Inc. | 13G | 6.00%2.10M shares | New | Aug 14, 20261 filing | Aug 14, 2026 | SEC |
| Goldman Sachs Asset Management, L.P. | 13G | 5.00%1.83M shares | New | May 11, 20261 filing | May 11, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
17 Schedule 13D and 13G filings on Onterris, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Sep 8, 20269:59 AM ET | FMR LLCand 1 other | 13G | 12.70%4.46M shares | New | Aug 31, 2026 | SEC |
| Aug 14, 20261:54 PM ET | Nomura Asset Management International Inc.and 1 other | 13G | 6.00%2.10M shares | New | Jun 30, 2026 | SEC |
| May 11, 20263:47 PM ET | Goldman Sachs Asset Management, L.P. | 13G | 5.00%1.83M shares | New | Mar 31, 2026 | SEC |
| Mar 27, 202610:52 AM ET | Vanguard Group Inc | 13G/A | 0.00%0 shares | –Below 5% | Mar 13, 2026 | SEC |
| Feb 13, 20266:20 AM ET | Macquarie Group Ltdand 2 others | 13G/A | 0.00%0 shares | −5.53 ppfrom 5.53%Below 5% | Dec 31, 2025 | SEC |
| Nov 14, 202511:26 AM ET | Bamco Incand 4 others | 13G/A | 6.12%2.16M shares | −1.66 ppfrom 7.78% | Sep 30, 2025 | SEC |
| Nov 12, 20256:19 PM ET | William Blair Investment Management, LLC | 13G/A | 3.70%1.32M shares | −3.10 ppfrom 6.80%Below 5% | Sep 30, 2025 | SEC |
| Oct 24, 20252:35 PM ET | UBS Asset Management Americas Inc | 13G/A | 0.00%0 shares | –Below 5% | Sep 30, 2025 | SEC |
| Aug 14, 20252:26 PM ET | Managed Account Advisors LLC | 13G/A | 2.70%957.1K shares | −2.50 ppfrom 5.20%Below 5% | Jun 30, 2025 | SEC |
| Jul 30, 202512:04 PM ET | William Blair Investment Management, LLC | 13G/A | 6.80%2.32M shares | +1.30 ppfrom 5.50% | Jun 30, 2025 | SEC |
| May 15, 202512:29 PM ET | Bamco Incand 4 others | 13G/A | 7.78%2.70M shares | +1.10 ppfrom 6.68% | Mar 31, 2025 | SEC |
| May 15, 20256:29 AM ET | Macquarie Group Ltdand 2 others | 13G/A | 5.53%1.92M shares | – | Mar 31, 2025 | SEC |
| May 9, 20254:13 PM ET | William Blair Investment Management, LLC | 13G | 5.50%1.90M shares | New | Mar 31, 2025 | SEC |
| Apr 4, 202510:07 AM ET | Managed Account Advisors LLC | 13G/A | 5.20%1.79M shares | 0.00 ppfrom 5.20% | Dec 31, 2024 | SEC |
| Feb 14, 20255:25 PM ET | Alger Associates Inc | 13G/A | 3.00%1.01M shares | –Below 5% | Dec 31, 2024 | SEC |
| Feb 14, 202510:01 AM ET | Bamco Incand 3 others | 13G | 6.68%2.29M shares | New | Dec 31, 2024 | SEC |
| Feb 13, 20256:33 PM ET | Managed Account Advisors LLC | 13G | 5.20%1.79M shares | New | Dec 31, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Onterris, Inc. shares.
No Form 144 notices for Onterris, Inc. are on file.