Medical device filing citing OTO Open paper — Inspire Medical Systems, 2026-05-04
Inspire Medical SystemsInspire Medical SystemsNYSE INSP
Filings SEC · Quote Yahoo cited a paper published in OTO Open as a basis for its claims in a regulatory filing with the U.S. Securities and Exchange CommissionU.S. Securities and Exchange Commission
Regulator · Website. The company read the manner in which it wrote the paper and the actual scope of the paper in sequence. The stock price movement for one month after the filing was compared to past cases of the same type to determine its position. This is a retrospective judgment written after knowing the results. The paper was read only up to the abstract.
The disclosure wrote the paper in the press release like this
When a U.S. listed company has something to inform shareholders, the ongoing report submitted to the Securities and Exchange Commission is called 8-K. The item numbers of the document submitted by Inspire Medical Systems on 2026-05-04 were 2.02 Earnings announcement · 7.01 Reg FD disclosure · 9.01 Financial statements · Attached documents. The company cited a paper published in OTO Open in the attached press release. If the sentence citing the paper is translated verbatim, it reads as follows.
Company Overview The first and only … 5 >385 PUBLICATIONS Compelling body of evidence >300 MILLION U.S.
What readers should look at first is where the company placed the paper in the press release. Next, they should determine whether the paper supports the entire company claim or only a part of it. To answer the latter question, one must read the full paper. This article, which only read the abstract, cannot provide an answer.
The scope of the paper discussed in the abstract is limited to this extent.
The paper title is Clinical Outcomes of Hypoglossal Nerve Stimulation Versus Continuous Positive Airway Pressure in Obstructive Sleep Apnea and it was published in OTO Open on 2026-04-01. The authors are affiliated with Virginia Commonwealth University. The summary published at the beginning of the paper is called abstract. This article read only up to there. This paragraph was rewritten by a person after filtering a draft written by a machine reading the abstract through numerical comparison, and thus differs in grade from a full-text reading and original judgment.
This is a retrospective study comparing patients with sleep apnea whose airways block during sleep, pairing those who had a device implanted to electrically stimulate the tongue nerve with those who started CPAP therapy, using a clinical database and following them for two years. After matching age and comorbidities, 3,525 individuals in each group were observed for the frequency of events such as stroke, myocardial infarction, atrial fibrillation, and emergency room visits. These events occurred less frequently in the stimulation device group. Since this is not a randomized trial but a retrospective study, it cannot rule out the possibility that people who chose the device and those who chose CPAP differed from the start.
The abstract does not answer; it remains in the main text and the appendix. This text, which does not go there, leaves the blank as it is. Readers compare the two citations above to determine which sentence in the abstract corresponds to the excerpt cited by the company.
A month later, the stock price was in the bottom quarter of the sample.
The return remaining after subtracting the portion that moves with the entire market is called excess return. The date is written as trading day, counting only the days when the stock market is open. In terms of a calendar, 20 trading days are about a month. The regulatory filing day in this case and the excess return for the following month are listed in the table below.
| Period | Excess return relative to the market | Meaning |
|---|---|---|
| 5 trading days before the filing | +0.2% | The extent to which the stock had already moved before the filing |
| regulatory filing day | −2.8% | filing day or first trading day thereafter |
| +1~+5 trading day cumulative | −26.0% | one week |
| +1~+20 trading day cumulative | −31.9% | one month |
A bundle of past cases of the same type is called a sample. The position counted from the bottom is expressed as a percentile. The one-month excess return of -31.9% in this case is within the bottom quarter, corresponding to the bottom 10% among 142 cases in the sample.
| sample scale (20 trading days) | Tenth from the bottom | Fourth from the bottom | median | top 25% | top 10% | this case |
|---|---|---|---|---|---|---|
| excess return | −31.8% | −20.1% | −6.9% | +5.5% | +19.5% | −31.9% |
Half of the sample falls between the two middle marks in the table. Check the table to see whether this case falls inside or outside of that range. The sample consists of cases where U.S. listed companies cited papers in 8-K filings over the past ten years. The company itself is excluded from the sample. The numbers listed here are historical facts, not rules to apply to future cases.
Another example of the same company reporting a paper in an 8-K filing is included in the sample below, together in the table.
| Filing date | The academic journal of the paper | Excess return in one month |
|---|---|---|
| 2024-01-08 | Annals of the American Thoracic Society | +17.8% |
After the filing, the company issued this document
Three 8-K filings issued by the company after the filing date are listed with only item numbers. In 8-K filings without titles, the item numbers indicate the type of content, so it is possible to know whether it was an earnings announcement or a contract. The details of what happened are read in the original text of each link.
- 2026-05-05 8-K Items 5.02, 5.03, 5.07, 9.01 — Officer/Director changes, Bylaws amendment, Shareholders' meeting results, Financial statements/attached documents
- 2026-06-26 8-K Items 7.01, 9.01 — Reg FD disclosure, Financial statements/attached documents
- 2026-07-22 8-K Item 5.02,9.01 — Officer·Director changes · Financial statements·Exhibits
What This Article Does Not Answer
This article, which reads only abstracts, cannot answer what the paper reviewed, how it was done, or what it showed. How many times the paper cited by the company was cited afterward can be checked again via the OpenAlexOpenAlex
Data source · Website citation count. What will be seen next is whether the company's next 8-K again cites the same paper.
Glossary
- 8-K
- A voluntary report submitted to the U.S. Securities and Exchange Commission when a listed company has something to inform shareholders. It is categorized by item numbers such as earnings, contracts, and executive changes. All the events in this article come from this document.
- Excess return
- The remainder after subtracting the overall market return from the stock return. It is used to see the movement of this company alone by removing the portion where the market as a whole rose or fell.
- trading day
- a count of days when the stock market is open. weekends and holidays are excluded, so 20 trading days are approximately one calendar month.
- sample and percentile
- A bundle of past cases of the same type is a sample, and the position from the bottom is expressed as a percentile. A percentile of 10 means that nine out of ten cases performed better than this case.
- abstract
- a summary at the beginning of a paper. the author writes in a few sentences what was done, how it was done, and what was found. without reading the full text, details and limitations of the method cannot be known.