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Nierenberg Investment Management Company’s Oil States International OIS Stock Holding History

Nierenberg Investment Management Company’s Portfolio OIS Stock Details OIS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$135K Sell
11,555
-100,000
-90% -$1.03M 0.07% 36
2025
Q4 		$755K Hold
111,555
– – 0.37% 26
2025
Q3 		$676K Hold
111,555
– – 0.29% 34
2025
Q2 		$598K Hold
111,555
– – 0.32% 34
2025
Q1 		$575K Buy
111,555
+88,000
+374% +$462K 0.31% 34
2024
Q4 		$119K Buy
+23,555
New +$117K 0.07% 40

Other funds holding OIS

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return
First Eagle Investment Management
First Eagle Investment Management New York $59.9B AUM 27.01% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Nierenberg Investment Management Company's OIS Position: Q1 2026 in Review

Nierenberg Investment Management Company reduced its Oil States International (OIS) stake by 90% in Q1 2026, selling an estimated $1.03M and leaving 11,555 shares worth $135K. The position accounts for 0.07% of the portfolio, ranked #36.

Nierenberg Investment Management Company first reported a position in OIS in Q4 2024 and has held it in 6 quarters since. The position peaked at $755K in Q4 2025. 217 funds tracked by Wall St. Rank hold OIS as of Q1 2026.

  • Nierenberg Investment Management Company held 11,555 shares of Oil States International worth $135K as of Q1 2026.
  • Nierenberg Investment Management Company sold 100,000 Oil States International shares in Q1 2026, an estimated $1.03M.
  • Oil States International made up 0.07% of Nierenberg Investment Management Company's portfolio in Q1 2026, its #36 holding.
  • Nierenberg Investment Management Company first reported a position in Oil States International in Q4 2024 and has held it in 6 quarters since.
  • Nierenberg Investment Management Company's Oil States International position peaked at $755K in Q4 2025.
  • 217 funds tracked by Wall St. Rank held Oil States International as of Q1 2026.

Based on Nierenberg Investment Management Company's 13F filing for Q1 2026, filed 13 May 2026.