X0508 4 2025-11-07 0001616543 Senseonics Holdings, Inc. SENS 0001944539 Sullivan Frederick T. C/O SENSEONICS HOLDINGS, INC. 20451 SENECA MEADOWS PARKWAY GERMANTOWN MD 20876 false true false false Chief Financial Officer 0 Common Stock 2025-11-07 4 P 0 5415 5.88 A 157028 D The price reported is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $5.8401 to $5.885 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. Effective October 17, 2025, the Issuer effected a 1-for-20 reverse stock split of the Issuer's common stock. The number of securities reported herein have been adjusted to reflect the reverse stock split. /s/ Frederick T. Sullivan 2025-11-10