William Blair Investment Management, Llc

13F Holdings History for Orion S.A. - Common Stock (OEC)

Symbol: OEC on NYSE
Investment type: Equity / Common Stock
Latest Disclosed Ownership: 680K shares
Security Ownership: 1.2%

Shares, Excluding Options vs Price

Value, Excluding Options

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC ownership in Orion S.A. Common Stock (OEC)

2025-08-01 - WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 680K shares of Orion S.A. Common Stock (OEC). This represents 1.2% percent ownership of the company. In their previous filing dated 2025-02-12, WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC had reported owning 3.56M shares, indicating a decrease of -80.9% percent.

Reporting Name	Ownership %	Change	Value $	Shares owned	Change	Activity %	Price	Form	Report date	Filed at
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	1.2%	-83.3%	$7.57M	680K	-2,877,680	-80.9%	$11.14	13G/A	6/30/2025	1 Aug 2025 12:43:07
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	6.2%		$41.2M	3.56M			$11.57	13G/A	12/31/2024	12 Feb 2025 17:08:55

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
6/30/2025	0.02%	-0.08%	$6.64M	633K	-2,852,608	-81.8%	$10.49	Q2 2025
3/31/2025	0.13%	+0%	$45.1M	3.49M	+24,104		$12.93	Q1 2025
12/31/2024	0.13%	+0.02%	$54.7M	3.46M	+602,080	+21.1%	$15.79	Q4 2024
9/30/2024	0.13%	+0.01%	$50.9M	2.86M	+135,731	+4.98%	$17.81	Q3 2024
6/30/2024	0.16%	+0.01%	$59.8M	2.72M	+99,613	+3.8%	$21.94	Q2 2024
3/31/2024	0.16%	+0.02%	$61.7M	2.62M	+304,372	+13.1%	$23.52	Q1 2024
12/31/2023	0.19%	+0.01%	$64.3M	2.32M	+105,984	+4.79%	$27.73	Q4 2023
9/30/2023	0.16%	-0.01%	$47.1M	2.21M	-122,844	-5.26%	$21.28	Q3 2023
6/30/2023	0.16%	-0.04%	$49.6M	2.34M	-638,293	-21.5%	$21.22	Q2 2023
3/31/2023	0.27%	-0.03%	$77.6M	2.98M	-372,252	-11.1%	$26.09	Q1 2023
12/31/2022	0.23%	+0.01%	$59.6M	3.35M	+102,751	+3.17%	$17.81	Q4 2022
9/30/2022	0.17%	-0.03%	$43.3M	3.24M	-629,117	-16.2%	$13.35	Q3 2022
6/30/2022	0.22%	-0.01%	$60.2M	3.87M	-94,920	-2.39%	$15.53	Q2 2022
3/31/2022	0.19%	+0%	$63.4M	3.97M	+5,833	+0.15%	$15.97	Q1 2022
12/31/2021	0.2%	-0.04%	$72.8M	3.96M	-894,452	-18.4%	$18.36	Q4 2021
9/30/2021	0.25%	+0.13%	$88.6M	4.86M	+2,251,199	+86.4%	$18.23	Q3 2021
6/30/2021	0.16%	0%	$49.5M	2.61M	-13,192	-0.5%	$18.99	Q2 2021
3/31/2021	0.17%	+0.01%	$51.7M	2.62M	+220,052	+9.17%	$19.72	Q1 2021
12/31/2020	0.14%	0%	$41.1M	2.4M	-8,310	-0.35%	$17.14	Q4 2020
9/30/2020	0.12%	+0%	$30.1M	2.41M	+75,239	+3.23%	$12.51	Q3 2020
6/30/2020	0.1%	+0.03%	$24.7M	2.33M	+601,251	+34.7%	$10.59	Q2 2020
3/31/2020	0.06%	+0.02%	$12.9M	1.73M	+568,033	+48.8%	$7.46	Q1 2020
12/31/2019	0.09%	+0.02%	$22.5M	1.16M	+224,164	+23.9%	$19.30	Q4 2019
9/30/2019	0.07%	+0.02%	$15.7M	939K	+212,997	+29.3%	$16.71	Q3 2019
6/30/2019	0.07%	+0%	$15.5M	726K	+20,988	+2.98%	$21.41	Q2 2019
3/31/2019	0.06%	+0%	$13.4M	705K	+13,540	+1.96%	$18.99	Q1 2019
12/31/2018	0.09%	+0.02%	$17.5M	692K	+188,751	+37.5%	$25.28	Q4 2018
9/30/2018	0.06%	+0.01%	$16.1M	503K	+53,843	+12%	$32.10	Q3 2018
6/30/2018	0.05%	+0.01%	$13.8M	449K	+72,837	+19.4%	$30.85	Q2 2018
3/31/2018	0.04%	+0.03%	$10.2M	376K	+330,974	+734%	$27.10	Q1 2018
12/31/2017	0%	+0%	$1.16M	45.1K	+45,098	NEW	$25.61	Q4 2017

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.