Orion S.A.
OEC- Exchange
- NYSE
- Industry
- Miscellaneous Chemical Products
- SEC CIK
- 0001609804
No open-market purchases or sales by Orion S.A. insiders were filed in the last 90 days; 187 institutions reported holding it in 13F filings for Q2 2026, worth $352.7M in total; no superinvestor holds it.
Holders of 5% or more of OEC
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Orion S.A., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Pzena Investment Management LLC | 13G/A | 8.10%4.58M shares | +1.80 ppfrom 6.30% | Oct 21, 20242 filings | Jul 11, 2025 | SEC |
| Divisar Capital Management LLC | 13G | 5.50%3.09M shares | New | Feb 26, 20261 filing | Feb 26, 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
6 Schedule 13D and 13G filings on Orion S.A., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Feb 26, 20264:17 PM ET | Divisar Capital Management LLCand 2 others | 13G | 5.50%3.09M shares | New | Feb 19, 2026 | SEC |
| Aug 1, 202512:43 PM ET | William Blair Investment Management, LLC | 13G/A | 1.20%679.8K shares | −5.00 ppfrom 6.20%Below 5% | Jun 30, 2025 | SEC |
| Jul 11, 20252:38 PM ET | Pzena Investment Management LLC | 13G/A | 8.10%4.58M shares | +1.80 ppfrom 6.30% | Jun 30, 2025 | SEC |
| Feb 14, 20259:45 AM ET | T. Rowe Price Investment Management, Inc. | 13G/A | 2.20%1.26M shares | –Below 5% | Dec 31, 2024 | SEC |
| Feb 12, 20255:08 PM ET | William Blair Investment Management, LLC | 13G/A | 6.20%3.56M shares | – | Dec 31, 2024 | SEC |
| Oct 21, 202410:46 AM ET | Pzena Investment Management LLC | 13G | 6.30%3.65M shares | New | Sep 30, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Orion S.A. shares.
No Form 144 notices for Orion S.A. are on file.