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Omeros Corp (OMER) director lines up fresh stock sale

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
144

Rhea-AI Filing Summary

OMEROS CORP (symbol OMER) has a notice from director Thomas Cable to sell common stock under Rule 144. The filing lists up to 15,000 shares of common stock to be sold through Morgan Stanley Smith Barney LLC, with an indicated aggregate market value of $276,772.50. The shares are to come from the exercise of options under a registered plan, in two tranches of 7,500 shares each on 08/20/2026, with cash exercise. The notice also reports that Cable sold 7,500 shares of common stock for $86,806.20 on 05/22/2026 during the prior three months.

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Shares of common stock to be sold 15,000 shares Proposed sale of Omeros Corp common stock under Rule 144
Aggregate market value of proposed sale $276,772.50 Estimated for the 15,000 shares covered by the notice
Planned option exercise tranches 7,500 shares and 7,500 shares Exercises of options under a registered plan on 08/20/2026
Shares sold in prior 3 months 7,500 shares Sale by Thomas Cable on 05/22/2026
Proceeds from prior 3‑month sale $86,806.20 Common stock sale on 05/22/2026
Rule 144 regulatory
"See the definition of "person" in paragraph (a) of Rule 144."
Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.
Exercise of Options Under a Registered Plan financial
"Common | 08/20/2026 | Exercise of Options Under a Registered Plan"
aggregate market value financial
"Common | Morgan Stanley Smith Barney LLC ... | 15000 | 276772.50"
Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.
Executive Financial Services financial
"Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza"

FAQ

What does the Form 144 filing disclose for OMER (Omeros Corp)?
It discloses that director Thomas Cable intends to sell up to 15,000 shares of OMER common stock under Rule 144, sourced from option exercises under a registered plan, with an indicated aggregate market value of $276,772.50 and sales planned around 08/20/2026.

How many OMER shares is Thomas Cable planning to sell under this notice?
The notice covers up to 15,000 shares of Omeros Corp common stock. These are listed to be sold through Morgan Stanley Smith Barney LLC and are expected to result from the exercise of options under a registered plan in two tranches of 7,500 shares each.

What is the approximate market value of the OMER shares covered by this Form 144?
The filing lists an aggregate market value of approximately $276,772.50 for the 15,000 shares of OMER common stock covered by the notice of proposed sale under Rule 144.

When are the option exercises and potential sales of OMER shares expected to occur?
The Form 144 indicates that the exercise of options under a registered plan and related sales of 7,500 shares plus another 7,500 shares are tied to the date 08/20/2026, with the exercises to be paid in cash.

What OMER share sales has Thomas Cable made in the last three months?
The filing reports that Thomas Cable sold 7,500 shares of Omeros Corp common stock on 05/22/2026, for total proceeds of $86,806.20, during the three months preceding the new proposed sale.

Who is the broker for the proposed OMER share sales in this Form 144?
The proposed sale of up to 15,000 shares of OMER common stock is listed to be executed through Morgan Stanley Smith Barney LLC Executive Financial Services, located at 1 New York Plaza, 8th Floor, New York, NY 10004.

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144: Filer Information

144: Issuer Information

144: Securities Information



Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold


* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.



Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

144: Remarks and Signature

Source: View Original Filing on SEC EDGAR