Nierenberg Investment Management Company Inc
Latest 13F Snapshot — Q1 2026
- Portfolio value:201.49M
- Number of holdings:46
- Top 10 concentration:87.0%
- Largest position:ISRG (27.5%)
- New positions:6
- Exited positions:6
Top Updates
AI Generated
Nierenberg Investment Management Company Inc reported a $201.487 billion portfolio across 44 positions. The fund increased its KBR Inc stake by 424.3% to represent 7.07% of holdings while reducing its ISRG stake by 14.0%.
- K6B (7.07%) – Increased holdings by 424.3%.
- ISRG (27.51%) – Reduced holdings by 14.0%.
- LYFT (8.55%) – Increased holdings by 59.3%.
- CRTO (9.37%) – Increased holdings by 18.4%.
- RKT (3.04%) – Reduced holdings by 67.9%.