INSP SEC Filing News — Inspire Medical Systems, Inc.

Latest SEC filings for Inspire Medical Systems, Inc. (INSP) explained in plain English. Covers insider buying and selling (Form 4), proposed insider sales (Form 144), material company events (8-K), and quarterly & annual reports (10-Q / 10-K). StrongBuyAnalytics provides navigation and brief excerpts or summaries; original filings remain at the SEC/source links and were authored by their filers, not StrongBuyAnalytics. Filing dates shown are source dates. Coverage and detection can be delayed or incomplete because of SEC availability, amendments, parsing, caching, or outages. Latest source filing date shown: 2026-10-16.

Inspire Medical Systems, Inc., a medical technology company, focuses on the development and commercialization of minimally invasive solutions for patients with obstructive sleep apnea (OSA) in the United States and internationally. The company offers Inspire system, a neurostimulation technology that provides a safe and effective treatment for patients with moderate to severe OSA. It also develops a novel, closed-loop solution that continuously monitors a patient's breathing and delivers mild hy…
Sector: Healthcare Industry: Medical Devices Market Cap: $2.0B
20
Total Filings
0
Bullish Classifications
2
Bearish Classifications
13
Insider Transactions
4
Material Events (8-K)
1
Periodic Reports
Rule-based classifications for INSP currently lean bearish. Of the 20 filing records displayed, 2 carry bearish classifications (such as insider sales or negative 8-K disclosures) versus 0 bullish. This does not necessarily signal fundamental deterioration — insiders sell for many reasons — but it is worth monitoring alongside the company's core financial metrics.
INSP Filing Activity Snapshot 2026-05-19 — 2026-10-16
Insider Transactions (Form 4)
0 buys vs 2 sells
Net insider selling in this period — insiders sell for many reasons beyond conviction.
Largest Form 144 Filing
$114.3K
Rondoni John (See Remarks) · 2026-05-19
2,641 shares · Form 4
Form 144 Notices
2
Proposed insider sales filed — Form 144 is a notice of intent, not a confirmed transaction. Actual sales are confirmed via Form 4.
Insider Transactions 13 · Forms 3, 4 and 5

A Form 4 is filed within two business days of a company insider — an officer, a director, or a holder of more than ten percent of the stock — changing their position in the shares. All 13 filings in this group are Form 4s for Inspire Medical Systems, Inc.

The difficulty with reading these filings as a group is that a single form type covers transactions that mean entirely different things. An executive spending their own money to buy stock and an executive having shares withheld to pay tax on a vesting grant both appear as a Form 4. Every filing below is therefore tagged with the nature of the underlying transaction, taken from the transaction code reported on the form itself.

Across the 13 insider filings shown, the breakdown is 10 compensation award, 2 open-market sale and 1 tax withholding. 2 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.

What each transaction type means

Compensation award ×10
Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Open-market sale ×2
The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Tax withholding ×1
Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.
Form 4 Compensation award Tax / Compensation Filing 2026-10-16

INSP insider Form 4 filed for equity award, exercise, or tax withholding

Ellis Gary Lee (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award 431 $68.07 $29.3K
Filing: Form 4 (Insider Transaction) Insider: Ellis Gary Lee (Director) Shares: 431
View on SEC EDGAR → Open Filing Document →
Form 4 Compensation award Tax / Compensation Filing 2026-10-16

INSP insider Form 4 filed for equity award, exercise, or tax withholding

Melenikiotou Georgia (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award 255 $68.07 $17.4K
Filing: Form 4 (Insider Transaction) Insider: Melenikiotou Georgia (Director) Shares: 255
View on SEC EDGAR → Open Filing Document →
Form 4 Compensation award Tax / Compensation Filing 2026-10-16

INSP insider Form 4 filed for equity award, exercise, or tax withholding

CARREL MICHAEL H (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award 203 $68.07 $13.8K
Filing: Form 4 (Insider Transaction) Insider: CARREL MICHAEL H (Director) Shares: 203
View on SEC EDGAR → Open Filing Document →
Form 4 Compensation award Tax / Compensation Filing 2026-10-16

INSP insider Form 4 filed for equity award, exercise, or tax withholding

Broader Shelley G (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award 284 $68.07 $19.3K
Filing: Form 4 (Insider Transaction) Insider: Broader Shelley G (Director) Shares: 284
View on SEC EDGAR → Open Filing Document →
Form 4 Compensation award Tax / Compensation Filing 2026-09-02

INSP insider Form 4 filed for equity award, exercise, or tax withholding

Kelly Jason P (See Remarks) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award 6,350 — —
Filing: Form 4 (Insider Transaction) Insider: Kelly Jason P (See Remarks) Shares: 6,350
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-08-11

INSP insider Kelly Jason P (See Remarks) sold 963 shares (~$57.3K)

Kelly Jason P, listed as See Remarks at Inspire Medical Systems, Inc., reported an open-market sale of 963 INSP shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 963 $59.55 $57.3K
Filing: Form 4 (Insider Transaction) Insider: Kelly Jason P (See Remarks) Shares: 963 Est. Value: $57.3K
View on SEC EDGAR → Open Filing Document →
Form 4 Tax withholding Tax / Compensation Filing 2026-08-04

INSP insider Form 4 filed for equity award, exercise, or tax withholding

Mann Melissa (Chief People Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.

Transactions reported on this filing
Code Nature Shares Price Value
F Tax withholding on vested shares 326 $124.54 $40.6K
F Tax withholding on vested shares 326 $50.21 $16.4K
Filing: Form 4 (Insider Transaction) Insider: Mann Melissa (Chief People Officer) Shares: 652
View on SEC EDGAR → Open Filing Document →
Form 4 Compensation award Tax / Compensation Filing 2026-07-27

INSP insider Form 4 filed for equity award, exercise, or tax withholding

CARREL MICHAEL H (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award 5,631 — —
Filing: Form 4 (Insider Transaction) Insider: CARREL MICHAEL H (Director) Shares: 5,631
View on SEC EDGAR → Open Filing Document →
Form 4 Compensation award Tax / Compensation Filing 2026-07-17

INSP insider Form 4 filed for equity award, exercise, or tax withholding

Melenikiotou Georgia (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award 344 — —
Filing: Form 4 (Insider Transaction) Insider: Melenikiotou Georgia (Director) Shares: 344
View on SEC EDGAR → Open Filing Document →
Form 4 Compensation award Tax / Compensation Filing 2026-07-17

INSP insider Form 4 filed for equity award, exercise, or tax withholding

Tansey Casey M (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award 346 — —
Filing: Form 4 (Insider Transaction) Insider: Tansey Casey M (Director) Shares: 346
View on SEC EDGAR → Open Filing Document →
Form 4 Compensation award Tax / Compensation Filing 2026-07-17

INSP insider Form 4 filed for equity award, exercise, or tax withholding

Ellis Gary Lee (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award 581 — —
Filing: Form 4 (Insider Transaction) Insider: Ellis Gary Lee (Director) Shares: 581
View on SEC EDGAR → Open Filing Document →
Form 4 Compensation award Tax / Compensation Filing 2026-07-17

INSP insider Form 4 filed for equity award, exercise, or tax withholding

Broader Shelley G (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award 383 — —
Filing: Form 4 (Insider Transaction) Insider: Broader Shelley G (Director) Shares: 383
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-05-19

INSP insider Rondoni John (See Remarks) sold 2,641 shares (~$114.3K)

Rondoni John, listed as See Remarks at Inspire Medical Systems, Inc., reported an open-market sale of 2,641 INSP shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 2,641 $43.28 $114.3K
Filing: Form 4 (Insider Transaction) Insider: Rondoni John (See Remarks) Shares: 2,641 Est. Value: $114.3K
View on SEC EDGAR → Open Filing Document →
Proposed Insider Sales 2 · Form 144

A Form 144 is a notice of intent to sell restricted or control securities. It is not a record that anything was sold. Inspire Medical Systems, Inc. has 2 such notices in this period.

The distinction matters because a Form 144 is frequently reported as though it were a completed insider sale. The filer may sell all of the shares covered, some of them, or none at all, and there is no obligation to update the notice either way. A sale that is actually executed by an officer or director shows up separately on a Form 4, which is the filing to check before treating a proposed sale as a real one.

Form 144 Proposed Insider Sale 2026-08-24

INSP Form 144 filed for proposed insider sale by JOHN RONDONI (64 shares) ~$4.0K

JOHN RONDONI filed a Form 144 with the SEC indicating intent to sell INSP (Inspire Medical Systems, Inc.) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: JOHN RONDONI Shares: 64 Est. Value: $4.0K
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-08-07

INSP Form 144 filed for proposed insider sale by JASON P KELLY (963 shares) ~$57.3K

JASON P KELLY filed a Form 144 with the SEC indicating intent to sell INSP (Inspire Medical Systems, Inc.) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: JASON P KELLY Shares: 963 Est. Value: $57.3K
View on SEC EDGAR → Open Filing Document →
Material Events 4 · Form 8-K

An 8-K reports a material event in the window between scheduled reports. There are 4 in this period for Inspire Medical Systems, Inc. Each 8-K names the item number it is filed under, and that number is the fastest way to tell a routine disclosure from a consequential one.

Item 2.02 is an earnings release, Item 5.02 is a change of directors or officers, and Item 1.01 or 2.01 covers a material agreement or a completed acquisition. Item 7.01 and Item 8.01 are the general-purpose disclosure items and carry no fixed meaning on their own.

Form 8-K Material Company Update 2026-08-03

INSP filed 8-K — material company event

Inspire Medical Systems, Inc. filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)
View on SEC EDGAR → Open Filing Document →
Form 8-K Material Company Update 2026-07-24

INSP filed 8-K — material company event

Inspire Medical Systems, Inc. filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)
View on SEC EDGAR → Open Filing Document →
Form 8-K Material Company Update 2026-07-22

INSP filed 8-K — material company event

Inspire Medical Systems, Inc. filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)
View on SEC EDGAR → Open Filing Document →
Form 8-K Material Company Update 2026-06-26

INSP filed 8-K — material company event

Inspire Medical Systems, Inc. filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)
View on SEC EDGAR → Open Filing Document →
Periodic Reports 1 · Forms 10-K and 10-Q

The periodic reports are where the audited and reviewed financial statements live. This period contains 1 quarterly report (10-Q) for Inspire Medical Systems, Inc.

The two are not equivalent in weight. A 10-K is audited by an external firm and includes the full risk factor disclosure, business description and management discussion; a 10-Q is unaudited, reviewed rather than examined, and much shorter. When a figure in a quarterly report is later revised, the annual report is usually where the correction appears.

An amended report — 10-K/A or 10-Q/A — restates or corrects something in the original filing, and is worth reading against the version it replaces.

Form 10-Q Quarterly Report 2026-08-03

INSP filed Quarterly Report (10-Q)

Inspire Medical Systems, Inc. filed its quarterly report with the SEC. This report includes unaudited financial statements and management discussion for the quarter.

Filing: 10-Q (Quarterly Report)
View on SEC EDGAR → Open Filing Document →

How we classify Inspire Medical Systems, Inc.'s filings

Straight from EDGAR

Each displayed record links to an original source document. StrongBuyAnalytics provides navigation and brief excerpts or summaries, not the filing itself. Parsing may omit context or contain errors, so read the original document in full.

Transaction codes, not guesswork

The nature shown on each insider filing comes from the transaction code the filer entered on the form itself — P for an open-market purchase, A for a compensation award, F for shares withheld to pay tax, M for an option exercise. Where one filing contains several codes, the transaction table lists them line by line.

Why the distinction matters

Insider activity is routinely summarised as buying or selling, which flattens together decisions that mean very different things. Shares withheld for tax on a vesting grant are an automatic administrative step; shares bought on the open market are someone committing their own money at the current price.

What this page does not tell you

A filing records what happened, not why. Form 4 does not always disclose whether a sale was executed under a pre-arranged Rule 10b5-1 plan, and no single filing is a basis for a decision on INSP. Read these alongside the fundamentals rather than in isolation.

Frequently Asked Questions — INSP SEC Filings

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Publisher, sources & limitations — September 15, 2026. StrongBuyAnalytics provides navigation and brief excerpts or summaries for educational use. Original filings remain at SEC EDGAR or other displayed source links; StrongBuyAnalytics does not author them. Filing dates are source dates, not publication dates for this page. Coverage can be delayed, incomplete, amended, or unavailable because of SEC/source availability, parsing, caching, or outages. Verify every material statement in the original filing.
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