Reporting Manager
American Century Investment Management, Inc.
Symbol
SIBN
Shares outstanding
43M shares
Disclosed Ownership
2.84M shares
Ownership
6.6%
Form type
SCHEDULE 13G/A
Date filed
11/14/2025, 09:43 AM
Date of event
Sep 30, 2025
Previous filing
May 15, 2025

Reporting Managers (4)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
American Century Mutual Funds, Inc. 5.3% 2.27M 2.27M 0 American Century Mutual Funds, Inc. /s/ John Pak / Senior Vice President
American Century Investment Management, Inc. 6.6% 2.84M 2.44M 0 American Century Investment Management, Inc. /s/ John Pak / Senior Vice President
American Century Companies, Inc. 6.6% 2.84M 2.44M 0 American Century Companies, Inc. /s/ John Pak / Senior Vice President
Stowers Institute for Medical Research 6.6% 2.84M 2.44M 0 Stowers Institute for Medical Research /s/ Joselyn Verschelden / Authorized Signer