NASDAQ:OMER

Omeros Stock Insider Trading

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*Your capital is at risk
$11.84
-0.0900 (-0.754%)
At Close: Jul 31, 2026

Omeros Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be positive at 47.91. In total, the insiders bought 9.65M and sold 1.63M OMER shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power

(Last 100 transactions)
47.91
Buy 9.65M shares
Sell 1.63M shares
94% Buy Activity
Moderate Negative Correlation
Buy Signal Medium Confidence
Jul 22, 2026

Analysis Breakdown:

  • Supported by a positive Insider Power Score of 47.91.
  • Confidence increased due to high data reliability score of 90.
  • Supported by overwhelming buy-side pressure (94% buys).

Historical Insider Trades

Date Type Person Role Amount
Apr 25, 2024
Buy
Stock Option (right to buy)
A-Award
Demopulos Gregory A Md
Chairman, CEO & President
CEO / President 725 000
Value: $2.22M
Nov 17, 2023
Buy
Common Stock
P-Purchase
Demopulos Gregory A Md
Chairman, CEO & President
CEO / President 15 000
Value: $25.2K
Nov 17, 2023
Buy
Common Stock
P-Purchase
Demopulos Gregory A Md
Chairman, CEO & President
CEO / President 15 000
Value: $25.2K
Nov 15, 2023
Buy
Common Stock
P-Purchase
Demopulos Peter A Md
Director
Director 10 000
Value: $15.3K
Nov 15, 2023
Buy
Common Stock
P-Purchase
Demopulos Peter A Md
Director
Director 10 000
Value: $15.3K
Nov 14, 2023
Buy
Common Stock
A-Award
Demopulos Gregory A Md
Chairman, CEO & President
CEO / President 25 000
Value: $36.0K
Nov 14, 2023
Buy
Common Stock
A-Award
Demopulos Gregory A Md
Chairman, CEO & President
CEO / President 25 000
Value: $36.0K
Nov 13, 2023
Buy
Common Stock
A-Award
Demopulos Gregory A Md
Chairman, CEO & President
CEO / President 37 500
Value: $48.4K
Nov 13, 2023
Buy
Common Stock
A-Award
Demopulos Gregory A Md
Chairman, CEO & President
CEO / President 37 500
Value: $48.4K
Sep 22, 2023
Buy
Stock Option (right to buy)
A-Award
Demopulos Gregory A Md
Chairman, CEO & President
CEO / President 715 000
Value: $2.10M
Sep 22, 2023
Buy
Stock Option (right to buy)
A-Award
Jacobsen Michael A
Vp, Finance & Cao
Officer 100 000
Value: $294.0K
Sep 22, 2023
Buy
Stock Option (right to buy)
A-Award
Cancelmo Peter B
Vp, General Counsel
Officer 100 000
Value: $294.0K
Sep 22, 2023
Buy
Stock Option (right to buy)
A-Award
Cancelmo Peter B
Vp, General Counsel
Officer 100 000
Value: $294.0K
Sep 22, 2023
Buy
Stock Option (right to buy)
A-Award
Jacobsen Michael A
Vp, Finance & Cao
Officer 100 000
Value: $294.0K
Sep 22, 2023
Buy
Stock Option (right to buy)
A-Award
Demopulos Gregory A Md
Chairman, CEO & President
CEO / President 715 000
Value: $2.10M
Sep 12, 2023
Buy
Common Stock
A-Award
Bumol Thomas F.
Director
Director 10 000
Value: $33.1K
Sep 12, 2023
Buy
Common Stock
A-Award
Bumol Thomas F.
Director
Director 10 000
Value: $33.1K
Jun 23, 2023
Buy
Stock Option (Right to Buy)
A-Award
Hanish Arnold C
Director
Director 15 000
Value: $82.4K
Jun 23, 2023
Buy
Stock Option (Right to Buy)
A-Award
Hood Leroy E. Md Phd
Director
Director 15 000
Value: $82.4K
Jun 23, 2023
Buy
Stock Option (Right to Buy)
A-Award
Demopulos Peter A Md
Director
Director 15 000
Value: $82.4K
Jun 23, 2023
Buy
Stock Option (Right to Buy)
A-Award
Cable Thomas J.
Director
Director 15 000
Value: $82.4K
Jun 23, 2023
Buy
Stock Option (Right to Buy)
A-Award
Bumol Thomas F.
Director
Director 15 000
Value: $82.4K
Jun 23, 2023
Buy
Stock Option (Right to Buy)
A-Award
Shah Rajiv
Director
Director 15 000
Value: $82.4K
Jun 23, 2023
Buy
Stock Option (Right to Buy)
A-Award
Demopulos Peter A Md
Director
Director 15 000
Value: $82.4K
Jun 23, 2023
Buy
Stock Option (Right to Buy)
A-Award
Hood Leroy E. Md Phd
Director
Director 15 000
Value: $82.4K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

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ABOUT OMEROS CORPORATION
Omeros
Omeros Corporation, a commercial-stage biopharmaceutical company, discovers, develops, and commercializes small-molecule and protein therapeutics, and orphan indications targeting inflammation, complement-mediated diseases, cancers related to dysfunction of the immune system, and addictive and compulsive disorders. The company's clinical programs include Narsoplimab (OMS721/MASP-2) that has completed pivotal studies for hematopoietic stem-cell tr...
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