Senseonics CEO withholds 28,598 shares for taxes

Senseonics Holdings, Inc. President and CEO Timothy T. Goodnow reported a routine tax-related share disposition.

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Form Type

Rhea-AI Filing Summary

Senseonics Holdings, Inc. President and CEO Timothy T. Goodnow reported a routine tax-related share disposition. On the vesting of restricted stock units, 28,598 shares of common stock were withheld at $5.82 per share to cover withholding tax obligations. After this transaction, he directly holds 622,645 shares of Senseonics common stock.

Insider Trade Summary

Exercise Price or Tax Liability: 28,598 shares

Exercise Price or Tax Liability 1 txn

Insider Goodnow Timothy T

Role President and CEO

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock	28,598	$5.82	$166K

Holdings After Transaction: Common Stock — 622,645 shares (Direct)

Footnotes (1)

F1. Represents shares withheld to satisfy withholding tax obligations upon the vesting of restricted stock units.

Key Figures

Shares withheld for taxes: 28,598 shares Withholding price per share: $5.82 per share Shares held after transaction: 622,645 shares

3 metrics

Shares withheld for taxes 28,598 shares Withholding on RSU vesting

Withholding price per share $5.82 per share Tax-withholding disposition

Shares held after transaction 622,645 shares Direct holdings post-transaction

Key Terms

restricted stock units, withholding tax obligations, tax-withholding disposition

3 terms

restricted stock units financial

"upon the vesting of restricted stock units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

withholding tax obligations financial

"shares withheld to satisfy withholding tax obligations"

tax-withholding disposition financial

"transaction_action: "tax-withholding disposition""

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

FAQ

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What did Senseonics (SENS) CEO Timothy Goodnow report in this Form 4?

Timothy Goodnow reported a tax-withholding disposition of Senseonics shares. 28,598 common shares were withheld upon restricted stock unit vesting to satisfy tax obligations, leaving him with 622,645 shares directly held after the transaction.

How many Senseonics shares were withheld for taxes in this filing?

A total of 28,598 Senseonics common shares were withheld to cover taxes. The shares relate to the vesting of restricted stock units, and the withholding price reported for the transaction was $5.82 per share.

Was the Senseonics CEO’s Form 4 transaction an open-market sale?

The transaction was not an open-market sale but a tax-withholding disposition. Shares were withheld by the company to satisfy withholding tax obligations triggered when restricted stock units vested.

What is Timothy Goodnow’s Senseonics shareholding after this Form 4?

After the tax-withholding transaction, Timothy Goodnow directly holds 622,645 Senseonics common shares. This figure reflects his position following the 28,598 shares withheld for tax obligations on vested restricted stock units.

What does transaction code F mean in the Senseonics Form 4?

Transaction code F indicates payment of an exercise price or tax liability by delivering securities. Here, it reflects shares withheld to satisfy withholding tax obligations when restricted stock units vested for the Senseonics CEO.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/18/2026 - 04:30 PM EDT

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^*

Goodnow Timothy T

(Last)

(First)

(Middle)

20451 SENECA MEADOWS PARKWAY

(Street)

GERMANTOWN

MARYLAND

20876-7005

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Senseonics Holdings, Inc. [ SENS ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/15/2026

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	05/15/2026		F⁽¹⁾		28,598	D	$5.82	622,645	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 shares withheld to satisfy withholding tax obligations upon the vesting of restricted stock units.

	/s/ Frederick T. Sullivan, Attorney-in-Fact	05/18/2026
	** 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