OMER

Omeros Corp

Company with tickers: OMER

Market Cap

$775.86M

Shares Outstanding

72,375,355

CIK

1285819

CUSIP

682143102

13F Activity (30d)

3 filings 2 filers

Website

Visit website

Investor Relations

Investor relations

Total shares sold short and not yet covered, reported to FINRA by broker-dealers and published twice a month (bi-monthly). Days to cover divides the short position by average daily volume; a high value (above 5) can signal short-squeeze potential.

Short Squeeze Score

85/100

Short interest 25.0% of shares — P99 Days to cover 8.4 — P88 Short-volume trend +5.2% — P68

Peer-relative percentile rank across all stocks reporting short interest at the latest settlement date (2026-06-15). Equal-weight mean of the available factors.

1M 3M 6M 1Y 5Y All

Short Interest History

Settlement Date	Current Position	Previous Position	Change	Avg Daily Volume	Days to Cover
2026-06-15	18,103,605	16,271,790	+1,831,815	2,145,416	8.44
2026-05-29	16,271,790	15,940,028	+331,762	1,798,109	9.05
2026-05-15	15,940,028	15,789,527	+150,501	1,470,074	10.84
2026-04-30	15,789,527	16,900,273	-1,110,746	1,206,519	13.09
2026-04-15	16,900,273	17,069,802	-169,529	1,478,463	11.43
2026-03-31	17,069,802	17,312,128	-242,326	908,718	18.78
2026-03-13	17,312,128	17,289,620	+22,508	780,372	22.18
2026-02-27	17,289,620	17,959,196	-669,576	816,280	21.18
2026-02-13	17,959,196	17,661,898	+297,298	1,015,590	17.68
2026-01-30	17,661,898	16,429,140	+1,232,758	1,692,353	10.44
2026-01-15	16,429,140	13,247,185	+3,181,955	3,516,886	4.67
2025-12-31	13,247,185	13,919,634	-672,449	5,093,923	2.60
2025-12-15	13,919,634	13,350,021	+569,613	1,470,045	9.47
2025-11-28	13,350,021	13,353,498	-3,477	1,711,959	7.80
2025-11-14	13,353,498	12,155,081	+1,198,417	1,715,015	7.79
2025-10-31	12,155,081	12,891,428	-736,347	2,896,541	4.20
2025-10-15	12,891,428	12,660,129	+231,299	12,206,313	1.06
2025-09-30	12,660,129	13,500,482	-840,353	1,022,800	12.38
2025-09-15	13,500,482	13,144,548	+355,934	663,928	20.33
2025-08-29	13,144,548	13,394,591	-250,043	998,983	13.16
2025-08-15	13,394,591	12,783,478	+611,113	1,175,371	11.40
2025-07-31	12,783,478	13,597,059	-813,581	1,704,333	7.50
2025-07-15	13,597,059	13,520,552	+76,507	948,779	14.33
2025-06-30	13,520,552	13,095,322	+425,230	964,263	14.02

Showing 1–24 of 24 settlements