What does the 50-share tax withholding transaction mean for Inspire Medical Systems (INSP) investors?

The 50-share transaction represents shares withheld by Inspire Medical Systems to cover tax obligations when prior RSUs vested. It is a mechanical, compensation-related entry rather than a market sale, and typically carries limited informational value about the insider’s view of the stock.

Inspire Medical Systems (INSP) director gets 3,562 RSUs and 50-share tax withholding

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

Inspire Medical Systems director Georgia Melenikiotou reported routine equity compensation activity. On April 30, 2026, she received 3,562 Restricted Stock Units (RSUs), each representing one future share of common stock, which vest after one year or immediately before a qualifying change of control if she remains in service.

On May 1, 2026, 50 shares of common stock were withheld by the company to cover tax obligations upon vesting of earlier RSUs, a non-market, tax-withholding disposition rather than an open-market sale. After these transactions, she directly holds 7,985 shares of Inspire Medical Systems common stock.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Melenikiotou Georgia

Role null

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	50	$56.70	$3K
Grant/Award	Common Stock	3,562	$0.00	--

Holdings After Transaction: Common Stock — 7,985 shares (Direct, null)

Footnotes (1)

Represents an award of Restricted Stock Units ("RSUs"). Each RSU represents a contingent right to receive one share of common stock. The RSUs shall vest upon the earlier to occur of (a) the first anniversary of the date of grant or (b) the date that is immediately prior to the occurrence of a Change of Control (as defined in the Issuer's 2018 Incentive Award Plan), in each case subject to the Reporting Person's continued service with the Issuer through the applicable vesting date. Represents the number of shares of common stock withheld by Inspire Medical Systems, Inc. to cover the Reporting Person's tax withholding obligation upon the vesting of RSUs granted on May 1, 2025.

Key Figures

RSUs granted: 3,562 units Tax-withheld shares: 50 shares Shares held after transactions: 7,985 shares +1 more

4 metrics

RSUs granted 3,562 units Restricted Stock Units awarded April 30, 2026

Tax-withheld shares 50 shares Shares withheld to cover RSU tax obligation May 1, 2026

Shares held after transactions 7,985 shares Direct common stock ownership following reported activity

Implied price for tax withholding $56.70 per share Value used for 50-share tax-withholding disposition

Key Terms

Restricted Stock Units ("RSUs"), Change of Control, 2018 Incentive Award Plan, tax withholding obligation

4 terms

Restricted Stock Units ("RSUs") financial

"Represents an award of Restricted Stock Units ("RSUs"). Each RSU represents a contingent right"

Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.

Change of Control financial

"the date that is immediately prior to the occurrence of a Change of Control"

A change of control occurs when the ownership or management of a company shifts significantly, such as through a sale, merger, or acquisition, resulting in new leadership or ownership structure. This change can impact the company's direction and decision-making, which is important for investors because it may affect the company's stability, strategy, and future prospects.

2018 Incentive Award Plan financial

"Change of Control (as defined in the Issuer's 2018 Incentive Award Plan)"

tax withholding obligation financial

"to cover the Reporting Person's tax withholding obligation upon the vesting of RSUs"

Form 4 Insider Transactions: What Each Field Means →

05/04/2026 - 06:18 PM

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Melenikiotou Georgia

(Last)

(First)

(Middle)

C/O INSPIRE MEDICAL SYSTEMS, INC.

5500 WAYZATA BLVD., SUITE 1600

(Street)

GOLDEN VALLEY

MINNESOTA

55416

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Inspire Medical Systems, Inc. [ INSP ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/30/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	04/30/2026		A		3,562⁽¹⁾	A	$0	8,035	D
Common Stock	05/01/2026		F		50⁽²⁾	D	$56.7	7,985	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. Represents an award of Restricted Stock Units ("RSUs"). Each RSU represents a contingent right to receive one share of common stock. The RSUs shall vest upon the earlier to occur of (a) the first anniversary of the date of grant or (b) the date that is immediately prior to the occurrence of a Change of Control (as defined in the Issuer's 2018 Incentive Award Plan), in each case subject to the Reporting Person's continued service with the Issuer through the applicable vesting date.

2. Represents the number of shares of common stock withheld by Inspire Medical Systems, Inc. to cover the Reporting Person's tax withholding obligation upon the vesting of RSUs granted on May 1, 2025.

	/s/ Bryan Phillips, Attorney-in-Fact for Georgia Melenikiotou	05/04/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transactions did Inspire Medical Systems (INSP) director Georgia Melenikiotou report?

She reported two routine equity compensation entries: a grant of 3,562 Restricted Stock Units and a separate withholding of 50 shares to cover taxes on previously granted RSUs that vested, leaving her with 7,985 directly held common shares.

Was Georgia Melenikiotou’s Form 4 for Inspire Medical Systems (INSP) an open-market stock sale?

No, the Form 4 shows no open-market sale. The 50-share disposition was a tax-withholding event where Inspire Medical Systems retained shares to satisfy tax obligations upon RSU vesting, not a discretionary sale into the market.

What are the terms of the 3,562 RSUs granted to Georgia Melenikiotou at Inspire Medical Systems (INSP)?

The 3,562 Restricted Stock Units each represent one potential share of common stock and will vest on the first anniversary of the grant date or immediately before a defined change of control, provided she continues serving the company through the applicable vesting date.

How many Inspire Medical Systems (INSP) shares does Georgia Melenikiotou hold after these transactions?

Following the RSU grant and the 50-share tax withholding, she directly holds 7,985 shares of Inspire Medical Systems common stock. This figure reflects her updated ownership position reported in the Form 4 after the compensation-related activity.

How do the RSUs granted to Georgia Melenikiotou at Inspire Medical Systems (INSP) vest?

The RSUs vest upon the earlier of one year after the grant date or immediately before a change of control defined under the company’s 2018 Incentive Award Plan, assuming she continues performing service for Inspire Medical Systems through the relevant vesting date.