X0202 SCHEDULE 13D/A 0001193125-20-175681 0001538846 XXXXXXXX LIVE 16 Common Stock 04/09/2026 0001525221 11040G103 Bristow Group Inc.

3151 BRIARPARK DRIVE SUITE 700 HOUSTON TX 77042

Matthew L. Clark 605-362-2820 4009 W 49th Street Suite 300 Sioux Falls SD 57106 0001538846 N South Dakota Investment Council OO SD 1795920 1795920 1795920 6.2 EP Common Stock Bristow Group Inc. 3151 BRIARPARK DRIVE SUITE 700 HOUSTON TX 77042 This Amendment No. 16 ( "Amendment No. 16") to Schedule 13D initially filed with the Securities and Exchange Commission (the "SEC") on June 22, 2020 (the "Schedule 13D") by South Dakota Investment Council (the "Reporting Person") relating to the shares of common stock, par value $0.01 per share (the "Common Stock") of Bristow Group Inc., a Delaware corporation (the "Issuer"), reflects changes to the information in the amendment to the Schedule 13D filed by the Reporting Person on February 23, 2026 ("Amendment No.15"). Except as otherwise indicated, capitalized terms used and not defined in this Amendment No. 16 shall have the meaning assigned to such term in the Schedule 13D. Except as otherwise provided herein, each item of the Schedule 13D remains unchanged. Items 5(a)-(c) of the Schedule 13D are hereby amended and restated as follows: (a) - (b) The responses of the Reporting Person with respect to Rows 11, 12 and 13 of the cover pages of this Schedule 13D that relate to the aggregate number and percentage of shares of Common Stock are incorporated herein by reference. The responses of the Reporting Person with respect to Rows 7, 8, 9 and 10 of the cover pages of this Schedule 13D that relate to the aggregate number of shares of Common Stock as to which the Reporting Person referenced in Item 2 above has sole or shared power to vote or to direct the vote and sole or shared power to dispose or to direct the disposition are incorporated herein by reference. The aggregate percentage of shares of Common Stock reported as beneficially owned by the Reporting Person was calculated based on 29,191,000 shares of Common Stock issued and outstanding as of February 23, 2026, as provided by the Company, based on the Annual Report on Form 10-K filed by the Company on February 26, 2026. Except as disclosed in Exhibit 1 of this Schedule 13D, there have been no transactions with respect to the Common Stock since the filing of the Amendment No.15 on February 23, 2026 by the Reporting Person. None. Not applicable. South Dakota Investment Council /s/ Matthew L. Clark 04/10/2026