Jonathan M. Rothberg - Nov 26, 2025 SCHEDULE 13D/A Report for Butterfly Network, Inc. Class A common stock, par value $0.0001 per share, Class B common stock, par value $0.0001 per share (BFLY)

Filing Manager
Jonathan M. Rothberg
Reporting Manager
Rothberg Jonathan M.
Security
Butterfly Network, Inc. Class A common stock, par value $0.0001 per share, Class B common stock, par value $0.0001 per share
Symbol
BFLY
Shares outstanding
26.4M shares
Disclosed Ownership
26.4M shares
Ownership
100%
Form type
SCHEDULE 13D/A
Date filed
12/1/2025, 07:35 PM
Date of event
Nov 26, 2025
Previous filing
Mar 7, 2025
SEC
View on sec.gov

Reporting Managers (7)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Rothberg Jonathan M. 3.2% 7.29M 6.56M 727K /s/ Jonathan M. Rothberg Jonathan M. Rothberg, Ph.D. 0001076352
Rothberg Jonathan M. 100% 26.4M 26.4M 0 /s/ Jonathan M. Rothberg Jonathan M. Rothberg, Ph.D.
4C Holdings I, LLC 17.8% 4.72M 0 4.72M /s/ Jonathan M. Rothberg Jonathan M. Rothberg, Ph.D., Manager
4C Holdings II, LLC 9.9% 2.62M 0 2.62M /s/ Jonathan M. Rothberg Jonathan M. Rothberg, Ph.D., Manager
4C Holdings III, LLC 9.9% 2.62M 0 2.62M /s/ Jonathan M. Rothberg Jonathan M. Rothberg, Ph.D., Manager
4C Holdings IV, LLC 9.9% 2.62M 0 2.62M /s/ Jonathan M. Rothberg Jonathan M. Rothberg, Ph.D., Manager
4C Holdings V, LLC 33.5% 8.85M 0 8.85M /s/ Jonathan M. Rothberg Jonathan M. Rothberg, Ph.D., Manager