Omeros counsel sells 50,000 shares after option exercise
For OMEROS CORP (OMER), VP and General Counsel Peter B. Cancelmo reported two exercise-and-sale transactions.
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Form Type
4
Rhea-AI Filing Summary
For OMEROS CORP (OMER), VP and General Counsel Peter B. Cancelmo reported two exercise-and-sale transactions. On August 28 and August 31, 2026, he exercised stock options for a total of 50,000 shares of common stock at an exercise price of $2.94 per share and sold all 50,000 shares in the market at weighted average prices of $18.6451 and $18.5416, respectively. The sale prices are reported as weighted averages over multiple trades within disclosed intraday price ranges.
Insider Trade Summary
Exercise and Sale: 50,000 shares ($783K approx. pre-tax spread)
Exercise and Sale
6 txns
Insider
Cancelmo Peter B
Role
VP, General Counsel
Sold
50,000 shs ($930K)
Approx. gross sale proceeds
$930K
Approx. exercise cost
$147K
Approx. pre-tax spread
$783K
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Stock Option (Right to Buy) F3 | 25,000 | $0.00 | $0.00 |
| Exercise | Common Stock | 25,000 | $2.94 | $74K |
| Sale | Common Stock F2 | 25,000 | $18.5416 | $464K |
| Exercise | Stock Option (Right to Buy) F3 | 25,000 | $0.00 | $0.00 |
| Exercise | Common Stock | 25,000 | $2.94 | $74K |
| Sale | Common Stock F1 | 25,000 | $18.6451 | $466K |
Holdings After Transaction:
Stock Option (Right to Buy) — 50,000 contracts (Direct);
Common Stock — 200 shares (Direct)
Footnotes (3)
- F1. This transaction was executed in multiple trades at prices ranging from $18.55 to $18.77. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions referenced in this footnote were effected upon request to the SEC staff, the issuer, or a security holder of the issuer.
- F2. This transaction was executed in multiple trades at prices ranging from $18.32 to $18.90. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions referenced in this footnote were effected upon request to the SEC staff, the issuer, or a security holder of the issuer.
- F3. This option shall vest and become exercisable over 48 equal monthly installments, with a vesting commencement date of April 1, 2023. Installments vest and become exercisable on each monthly anniversary thereafter.
Key Figures
Shares sold August 28, 2026: 25,000 shares
Weighted average sale price August 28, 2026: $18.6451 per share
Shares sold August 31, 2026: 25,000 shares
+2 more
5 metrics
Shares sold August 28, 2026
25,000 shares
Common Stock sale reported with code S on 2026-08-28
Weighted average sale price August 28, 2026
$18.6451 per share
Common Stock sale, trades from $18.55 to $18.77
Shares sold August 31, 2026
25,000 shares
Common Stock sale reported with code S on 2026-08-31
Weighted average sale price August 31, 2026
$18.5416 per share
Common Stock sale, trades from $18.32 to $18.90
Options exercised
50,000 shares at $2.94 per share
Two Stock Option (Right to Buy) exercises on 2026-08-28 and 2026-08-31
Key Terms
Stock Option (Right to Buy), derivative security, weighted average sales price, vesting commencement date
4 terms
Stock Option (Right to Buy) financial
"security_title" : "Stock Option (Right to Buy)""
derivative security financial
"transaction_code_description" : "Exercise or conversion of derivative security""
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.
weighted average sales price financial
"The price reported above reflects the weighted average sales price."
vesting commencement date financial
"with a vesting commencement date of April 1, 2023."
The vesting commencement date is the starting point when an employee begins earning ownership rights to their promised benefits, such as stock options or retirement contributions. Think of it like the day a savings account is opened—only after this date do the benefits start to grow and become fully available over time. It matters to investors because it marks when the clock begins ticking toward full ownership, affecting the timing and value of these benefits.
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What did OMER (OMEROS CORP) insider Peter B. Cancelmo report on this Form 4?
He reported exercising stock options for 50,000 shares of OMER common stock at $2.94 per share on August 28 and 31, 2026, and selling all 50,000 shares in market transactions at weighted average prices around $18.6 per share.
What was the stock option exercise price in the OMER Form 4 transactions?
The options exercised by Peter B. Cancelmo had an exercise price of $2.94 per share and related to 25,000 underlying shares exercised on August 28, 2026 and 25,000 on August 31, 2026.
Were the reported OMER sales under a Rule 10b5-1 trading plan?
No. The document-level 10b5-1 checkbox is false, indicating these transactions were not affirmatively reported as made under a Rule 10b5-1 trading plan.
What is the vesting schedule of the OMER stock options involved?
A footnote states that the option vests over 48 equal monthly installments starting on April 1, 2023, with installments vesting and becoming exercisable on each monthly anniversary thereafter.
AI-generated analysis. How Rhea-AI works. Not financial advice.
