Omeros Corporation
US ˙ NasdaqGM ˙ US6821431029

SecurityOMER / Omeros Corporation
InstitutionCreative Planning
Latest Disclosed Ownership21,047 shares
Latest Disclosed Value $ 222,256
Creative Planning reports 24.42% increase in ownership of OMER / Omeros Corporation

On May 12, 2026 - Creative Planning filed a 13F-HR form disclosing ownership of 21,047 shares of Omeros Corporation (US:OMER) valued at $222,256 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 16,916 shares of Omeros Corporation. This represents a change in shares of 24.42% during the quarter. The current value of the position is $215,732 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-12 2026-03-31 13F OMEROS COM 682143102 21,047 4,131 24.42 222 -23.45 0.0001
2026-02-17 2025-12-31 13F OMEROS COM 682143102 16,916 16,916 291 0.0002
2023-02-10 2022-12-31 13F OMEROS COM 682143102 0 -11,270 -100.00 0 -100.00
2022-11-03 2022-09-30 13F OMEROS COM 682143102 11,270 0 0.00 36 16.13 0.0001
2022-08-15 2022-06-30 13F OMEROS COM 682143102 11,270 0 0.00 31 -54.41 0.0001
2022-05-16 2022-03-31 13F OMEROS COM 682143102 11,270 0 0.00 68 -5.56 0.0001
2022-02-11 2021-12-31 13F OMEROS COM 682143102 11,270 11,270 72 0.0001
2020-11-05 2020-09-30 13F OMEROS COM 682143102 0 -16,175 -100.00 0 -100.00
2020-07-23 2020-06-30 13F OMEROS COM 682143102 16,175 16,175 238 0.0007
2017-10-17 2017-09-30 13F OMEROS COM 682143102 0 -4,970 -100.00 0 -100.00
2017-07-12 2017-06-30 13F OMEROS COM 682143102 4,970 2,000 67.34 99 120.00 0.0005
2017-04-07 2017-03-31 13F OMEROS COM 682143102 2,970 -1,400 -32.04 45 4.65 0.0002
2017-01-09 2016-12-31 13F OMEROS COM 682143102 4,370 1,525 53.60 43 34.38 0.0003
2016-10-12 2016-09-30 13F OMEROS COM 682143102 2,845 0 0.00 32 6.67 0.0002
2016-07-12 2016-06-30 13F OMEROS COM 682143102 2,845 -17,000 -85.66 30 -90.13 0.0002
2016-04-08 2016-03-31 13F OMEROS COM 682143102 19,845 17,000 597.54 304 575.56 0.0024
2016-01-11 2015-12-31 13F OMEROS COM 682143102 2,845 0 0.00 45 45.16 0.0004
2015-10-09 2015-09-30 13F OMEROS COM 682143102 2,845 2,845 0.00 31 0.0003
2015-07-09 2015-06-30 13F OMEROS COM 682143102 0 -1,700 -100.00 0 -100.00
2015-04-13 2015-03-31 13F OMEROS COM 682143102 1,700 1,700 0.00 37 0.0003
2015-01-29 2014-12-31 13F OMEROS COM 682143102 0 -1,700 -100.00 0 -100.00
2014-10-10 2014-09-30 13F OMEROS COM 682143102 1,700 -58,235 -97.16 22 -96.96 0.0003
2014-04-11 2014-03-31 13F OMEROS COM 682143102 59,935 59,935 723 0.0109
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.