Historical shareholding details of Credit Suisse First Boston (CSFB) holdings in NPK International Inc. (NPKI)

Monthly changes of Credit Suisse First Boston (CSFB) shareholding in NPK International Inc. over the previous months

Month	Name	Total no. shares held	Percent Holding
Month	Name	Total no. shares held	Percent Holding
Mar 31, 2024	Credit Suisse First Boston (Csfb)	145,324	0.17%

Dec 31, 2023	Credit Suisse First Boston (Csfb)	133,193	0.16%

Mar 31, 2023	Credit Suisse First Boston (Csfb)	0	0.00%

Dec 31, 2022	Credit Suisse First Boston (Csfb)	3	0.00%