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$OEC
$5.47 +$0.06 (1.11%) Close

Ownership

13F as of Q2 2026 · 56.5M shares outstanding

Who owns OEC?

By type of holder
Institutions 94.1% Insiders 0.0% Everyone else 5.9%
Concentration Top 10 holders own 47.4%
Pzena Investment Management LLC 8.4% · BlackRock, Inc. 7.4%
Institutional ownership
94.1%
+2.7 pts vs last qtr
Institutional holders
186
+5 vs last qtr
Net shares bought
+1.5M
by institutions in Q2 2026
New / sold out
24 / 19
positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026
  • American Century Companies Inc +695.3K
  • Acadian Asset Management LLC +581.8K

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Biggest sellers in Q2 2026
  • Jane Street Group, LLC −402.6K
  • D. E. Shaw & Co., Inc. −282.5K

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Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for Orion SA in the last 12 months.

Is your stake being diluted?

Diluted share count, FY2016–FY2025
−6.4%
−0.73% a year
Each share's claim on the business
+6.8%
grew without buying or selling a share
Spent on buybacks vs paid in stock
$130M vs $97.7M
over 10 fiscal years
Diluted shares, split-adjusted
54.6M58.3M62.0M2016: 60.2M shares'162017: 60.7M shares'172018: 61.0M shares'182019: 61.3M shares'192020: 61.4M shares'202021: 61.0M shares'212022: 61.4M shares'222023: 60.0M shares'232024: 58.4M shares'242025: 56.3M shares'25
Buybacks Stock-based comp
$0$32.8M$65.6M2016 buybacks: $3.8M2016 stock comp: $4.0M'162017 buybacks: $02017 stock comp: $8.8M'172018 buybacks: $4.9M2018 stock comp: $13.9M'182019 buybacks: $02019 stock comp: $9.4M'192020 buybacks: $02020 stock comp: $4.4M'202021 buybacks: $02021 stock comp: $5.2M'212022 buybacks: $4.3M2022 stock comp: $7.7M'222023 buybacks: $65.6M2023 stock comp: $15.4M'232024 buybacks: $26.6M2024 stock comp: $15.3M'242025 buybacks: $24.8M2025 stock comp: $13.6M'25

How patient are the owners?

Institutional shares by how long they've been held
5+ years69% 3–5 years9% 1–3 years13% Under 1 year9%
Quarterly turnover
9.2%
of institutional shares changed hands
Top 10 managers, median time held
5 years

Super Investors

Investment managers reporting OEC on Form 13F
PI
Pzena Investment Management LLC
Shares
4.8M
% of company
8.44%
Change vs last qtr
+172.1K (+3.7%)
Held since
≤2021
B
BlackRock, Inc.
Shares
4.2M
% of company
7.44%
Change vs last qtr
+245.5K (+6.2%)
Held since
≤2021

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Institutional Funds

Mutual funds and ETFs reporting OEC on Form N-PORT; together they hold 14.5% of the company
AU
Avantis U.S. Small Cap Value ETF
American Century ETF Trust
Position value
$19.3M
% of company
4.46%
% of the fund
0.07%
As of
May 31, 2026
IS
Invesco Small Cap Value Fund
AIM Sector Funds (Invesco Sector Funds)
Position value
$10.4M
% of company
2.73%
% of the fund
0.09%
As of
July 31, 2026

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