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Nierenberg Investment Management Company, LLC Last Quarter Change: USA Stocks, Added

Nierenberg Investment Management Company, LLC quarter change: USA Stocks, Added

In share positions in stocks (listed in the US), from the quarter ended 2026-03-31 to 2026-06-30, Nierenberg Investment Management Company, LLC opened 3 positions, added to 2, reduced 1, sold out of 11 and left 27 unchanged. The largest increase in value was FCN (+$9,281,091); the largest decrease was EQT (-$5,584,310).

  • FCN: Country of operation United States; Class COM; Shares 2026-03-31 9,780; Shares 2026-06-30 73,887.
  • TNDM: Country of operation United States; Class COM NEW; Shares 2026-03-31 79,510; Shares 2026-06-30 158,910.

Two Form 13F-HR filings compared (SEC CIK 1282683): 2026-03-31 (filed 2026-05-13) and 2026-06-30 (filed 2026-08-11). Rows for the same security, class and put/call are added together. Value change is the filed value at each quarter end, so it includes the price move; share change is the position change.

StockCountry of operationClassShares 2026-03-31Shares 2026-06-30Share changeValue 2026-03-31Value 2026-06-30Value change
FCN
FTI CONSULTING INC
United StatesCOM9,78073,887+64,107$1,728,811$11,009,902+$9,281,091
TNDM
TANDEM DIABETES CARE INC
United StatesCOM NEW79,510158,910+79,400$1,524,207$2,397,952+$873,745

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