Vanguard Group Inc

13F Holdings History for OMEROS CORP - Common Stock (OMER)

Symbol: OMER on Nasdaq
Investment type: Equity / Common Stock
Latest Disclosed Ownership: 3.35M shares
Security Ownership: 4.91%

Shares, Excluding Options vs Price

Value, Excluding Options

The Vanguard Group ownership in OMEROS CORP Common Stock (OMER)

2025-10-31 - The Vanguard Group has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 3.35M shares of OMEROS CORP Common Stock (OMER). This represents 4.91% percent ownership of the company.

Reporting Name	Ownership %	Change	Value $	Shares owned	Change	Activity %	Price	Form	Report date	Filed at
The Vanguard Group	4.91%		$13.7M	3.35M			$4.10	13G/A	9/30/2025	31 Oct 2025 11:05:31

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
9/30/2025	0%	+0%	$13.7M	3.35M	+63,381	+1.93%	$4.10	Q3 2025
6/30/2025	0%	+0%	$9.85M	3.28M	+46,321	+1.43%	$3.00	Q2 2025
3/31/2025	0%	+0%	$26.6M	3.24M	+95,599		$8.22	Q1 2025
12/31/2024	0%	0%	$31M	3.14M	-117,942	-3.62%	$9.88	Q4 2024
9/30/2024	0%	+0%	$12.9M	3.26M	+40,481	+1.26%	$3.97	Q3 2024
6/30/2024	0%	0%	$13.1M	3.22M	-31,166	-0.96%	$4.06	Q2 2024
3/31/2024	0%	+0%	$11.2M	3.25M	+81,348	+2.57%	$3.45	Q1 2024
12/31/2023	0%	+0%	$10.4M	3.17M	+26,085	+0.83%	$3.27	Q4 2023
9/30/2023	0%		$9.18M	3.14M	+5,541	+0.18%	$2.92	Q3 2023
6/30/2023	0%	+0%	$17.1M	3.14M	+316,579	+11.2%	$5.44	Q2 2023
3/31/2023	0%		$13.1M	2.82M	+286	+0.01%	$4.65	Q1 2023
12/31/2022	0%		$6.37M	2.82M	+1,281	+0.05%	$2.26	Q4 2022
9/30/2022	0%	+0%	$8.88M	2.82M	+93,699	+3.44%	$3.15	Q3 2022
6/30/2022	0%	0%	$7.5M	2.73M	-709,232	-20.6%	$2.75	Q2 2022
3/31/2022	0%	+0%	$20.6M	3.43M	+76,869	+2.29%	$6.01	Q1 2022
12/31/2021	0%	+0%	$21.6M	3.36M	+72,264	+2.2%	$6.43	Q4 2021
9/30/2021	0%	0%	$45.3M	3.29M	-60,121	-1.8%	$13.79	Q3 2021
6/30/2021	0%		$49.6M	3.35M	-171	-0.01%	$14.84	Q2 2021
3/31/2021	0%	+0%	$59.6M	3.35M	+153,451	+4.81%	$17.80	Q1 2021
12/31/2020	0%	+0%	$45.6M	3.19M	+116,252	+3.78%	$14.29	Q4 2020
9/30/2020	0%	+0%	$31.1M	3.08M	+332,238	+12.1%	$10.11	Q3 2020
6/30/2020	0%	+0%	$40.4M	2.74M	+33,112	+1.22%	$14.72	Q2 2020
3/31/2020	0%	+0%	$36.2M	2.71M	+95,187	+3.64%	$13.37	Q1 2020
12/31/2019	0%	+0%	$36.9M	2.62M	+161,101	+6.56%	$14.09	Q4 2019
9/30/2019	0%	+0%	$40.1M	2.45M	+53,021	+2.21%	$16.33	Q3 2019
6/30/2019	0%	+0%	$37.7M	2.4M	+28,991	+1.22%	$15.69	Q2 2019
3/31/2019	0%	+0%	$41.2M	2.37M	+43,769	+1.88%	$17.37	Q1 2019
12/31/2018	0%	+0%	$25.9M	2.33M	+124,307	+5.64%	$11.14	Q4 2018
9/30/2018	0%	+0%	$53.8M	2.2M	+34,043	+1.57%	$24.41	Q3 2018
6/30/2018	0%	0%	$39.4M	2.17M	-149,863	-6.46%	$18.14	Q2 2018
3/31/2018	0%	+0%	$25.9M	2.32M	+161,454	+7.48%	$11.17	Q1 2018
12/31/2017	0%	+0%	$41.9M	2.16M	+147,689	+7.34%	$19.43	Q4 2017
9/30/2017	0%	+0%	$43.5M	2.01M	+185,433	+10.2%	$21.62	Q3 2017
6/30/2017	0%	+0%	$36.3M	1.83M	+94,280	+5.45%	$19.91	Q2 2017
3/31/2017	0%	+0%	$26.2M	1.73M	+83,868	+5.09%	$15.12	Q1 2017
12/31/2016	0%	+0%	$16.3M	1.65M	+31,787	+1.97%	$9.92	Q4 2016
9/30/2016	0%	+0%	$18M	1.62M	+185,611	+13%	$11.16	Q3 2016
6/30/2016	0%	+0%	$15M	1.43M	+32,401	+2.32%	$10.52	Q2 2016
3/31/2016	0%	+0%	$21.4M	1.4M	+57,455	+4.29%	$15.34	Q1 2016
12/31/2015	0%	+0%	$21.1M	1.34M	+23,089	+1.75%	$15.73	Q4 2015
9/30/2015	0%	+0%	$14.4M	1.32M	+73,117	+5.88%	$10.96	Q3 2015
6/30/2015	0%	+0%	$22.4M	1.24M	+29,621	+2.44%	$17.99	Q2 2015
3/31/2015	0%	+0%	$26.8M	1.21M	+153,895	+14.5%	$22.03	Q1 2015
12/31/2014	0%	+0%	$26.3M	1.06M	+91,351	+9.43%	$24.78	Q4 2014
9/30/2014	0%	+0%	$12.3M	969K	+30,664	+3.27%	$12.72	Q3 2014
6/30/2014	0%	+0%	$16.3M	939K	+16,033	+1.74%	$17.40	Q2 2014
3/31/2014	0%	+0%	$11.1M	922K	+144,927	+18.6%	$12.07	Q1 2014
12/31/2013	0%		$8.78M	778K			$11.29	Q4 2013

* 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.