Senseonics (SENS) CFO faces 5,397-share tax withholding on RSU vesting

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

Senseonics Holdings, Inc. Chief Financial Officer Frederick T. Sullivan reported a routine tax-related share disposition. On the vesting of restricted stock units, 5,397 shares of common stock were withheld to satisfy withholding tax obligations, rather than sold on the open market.

After this tax-withholding disposition, Sullivan directly holds 226,477 shares of common stock. The filing reflects compensation-related share vesting mechanics, not an active purchase or sale decision in the market.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Sullivan Frederick T.

Role Chief Financial Officer

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	5,397	$7.18	$39K

Holdings After Transaction: Common Stock — 226,477 shares (Direct, null)

Footnotes (1)

[object Object]

Key Figures

Shares withheld for taxes: 5,397 shares Price per share for withholding: $7.18 per share Shares held after transaction: 226,477 shares

3 metrics

Shares withheld for taxes 5,397 shares Withheld to satisfy tax obligations on RSU vesting

Price per share for withholding $7.18 per share Valuation used for 5,397-share tax-withholding disposition

Shares held after transaction 226,477 shares Direct holdings after tax-withholding disposition

Key Terms

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

4 terms

restricted stock units financial

"Represents shares withheld to satisfy withholding tax obligations 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

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

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.

Common Stock financial

"security_title: Common Stock"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google

Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 06/17/2026 - 04:16 PM Accepted by SEC EDGAR 06/17/2026 - 04:15 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^*

Sullivan Frederick T.

(Last)

(First)

(Middle)

C/O SENSEONICS HOLDINGS, INC.

20451 SENECA MEADOWS PARKWAY

(Street)

GERMANTOWN

MARYLAND

20876

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/15/2026

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	06/15/2026		F⁽¹⁾		5,397	D	$7.18	226,477	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	06/17/2026
	** 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 transaction did Senseonics (SENS) report for CFO Frederick T. Sullivan?

Senseonics reported that CFO Frederick T. Sullivan had 5,397 shares withheld to cover taxes upon restricted stock unit vesting. This is a tax-withholding disposition, not an open-market trade, and reflects standard equity compensation treatment rather than a discretionary buy or sell.

How many Senseonics (SENS) shares were withheld for taxes in the latest Form 4?

The Form 4 shows that 5,397 shares of Senseonics common stock were withheld to satisfy tax obligations on vested restricted stock units. These shares were not sold in the open market but retained by the company to cover required withholding taxes.

How many Senseonics (SENS) shares does CFO Frederick T. Sullivan hold after this transaction?

Following the tax-withholding transaction, CFO Frederick T. Sullivan directly holds 226,477 shares of Senseonics common stock. This figure reflects his direct ownership after 5,397 shares were withheld to satisfy tax liabilities tied to restricted stock unit vesting.

Was the Senseonics (SENS) CFO’s Form 4 transaction a market sale of shares?

No, the transaction was not a market sale. The 5,397 shares were withheld by the company to satisfy withholding tax obligations on restricted stock unit vesting, a common compensation practice that does not indicate an open-market selling decision by the executive.

What does transaction code F mean in the Senseonics (SENS) Form 4 filing?

Transaction code F indicates a tax-withholding disposition, where shares are delivered to the issuer to cover exercise price or tax liability. In this case, Senseonics withheld 5,397 shares from the CFO upon restricted stock unit vesting to meet required tax obligations.