Investor South Dakota Investment Council
13D/G Filings

This page shows a list of all the recent 13D/G filings made by South Dakota Investment Council . Schedule 13D is commonly referred to as a “beneficial ownership report.” The term "beneficial owner" is defined under SEC rules. It includes any person who directly or indirectly shares voting power or investment power (the power to sell the security).

When a person or group of persons acquires beneficial ownership of more than 5% of a voting class of a company’s equity securities, they are required to file a Schedule 13D within ten days after the purchase. Click the link icon to see the full transaction history.

Date Form Target Prev
Shares
Current
Shares
Change
(Percent)
Ownership
(Percent)
Change
(Percent)
2025-08-07 13D/A VTOL / Bristow Group Inc. 3,693,665 3,379,207
2024-11-07 13D/A VTOL / Bristow Group Inc. 4,019,380 3,693,665
2024-07-19 13D/A VTOL / Bristow Group Inc. 4,306,671 4,019,380
2024-05-16 13D/A VTOL / Bristow Group Inc. 4,634,350 4,306,671
2024-03-14 13D/A VTOL / Bristow Group Inc. 4,912,953 4,634,350
2024-01-10 13D/A VTOL / Bristow Group Inc. 5,192,081 4,912,953
2023-10-18 13D/A VTOL / Bristow Group Inc. 5,451,664 5,192,081
2023-07-10 13D/A VTOL / Bristow Group Inc. 5,807,782 5,451,664
2023-02-15 13D/A VTOL / Bristow Group Inc. 6,092,530 5,807,782
2022-06-07 13D/A VTOL / Bristow Group Inc. 6,376,137 6,092,530
2021-09-07 13D/A VTOL / Bristow Group Inc. 5,475,116 6,376,137
2020-06-22 13D US26885G1094 / Era Group Inc. 6,674,073
2019-11-08 13D VTOL / Bristow Group Inc. 5,475,116