Amendment No. 12 to Schedule 13D by South Dakota Investment Council

South Dakota Investment Council filed Amendment No. 12 to Schedule 13D regarding its holdings in Bristow Group Inc. The amendment reflects changes in the Reporting Person's ownership, which now stands at 3,056,091 shares, representing 10.6% of the outstanding Common Stock. The amendment also details transactions in the Common Stock over the past sixty days, including sales of shares at various weighted average prices. The Reporting Person has sole voting and dispositive power over these shares. The amendment updates the information previously filed in Amendment No. 11 and incorporates by reference the responses to certain items in the Schedule 13D.