Nierenberg Investment Management Company, Inc. Portfolio Holdings
Q3 2025•40 long positions•$180.9M portfolio value
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Holding44 | Sector | Position↕ | Traded↕ | Ownership↕ | Shares Δ↕ | Shares Δ % | Market Cap↕ | Owned Since↕ |
|---|---|---|---|---|---|---|---|---|
Restaurants Consumer Cyclical | $50.8M 28.07% | — | 9.85% 3.0M shares | — | — | $515.5M Small Cap | Q4 2020 Held for 4y 11m | |
Oil & Gas Exploration & Production Energy | $29.2M 16.15% | — | 0.086% 536.7K shares | — | — | $34.0B Large Cap | Q4 2020 Held for 4y 11m | |
Financial - Mortgages Financial Services | $26.6M 14.69% | -$35.8M Sold | 0.197% 126.1K shares | 296.1K → 126.1K −$35.8M | -57.4% | $13.5B Large Cap | Q4 2020 Held for 4y 11m | |
Software - Application Technology | $17.9M 9.9% | +$17.0M Bought | 0.196% 813.6K shares | 42.6K → 813.6K +$17.0M | +1,811.77% | $9.1B Mid Cap | Q2 2025 Held for 5 months | |
Banks - Regional Financial Services | $10.9M 6.03% | +$510.2K Bought | 9.7% 2.0M shares | 1.9M → 2.0M +$510.2K | +4.9% | $112.5M Micro Cap | Q2 2024 Held for 1y 5m | |
Unknown Unknown | $9.6M 5.31% | -$2.5M Sold | — 425.0K shares | 535.7K → 425.0K −$2.5M | -20.67% | — — | Q4 2024 Held for 11 months | |
Financial - Credit Services Financial Services | $4.6M 2.52% | — | 0.612% 339.1K shares | — | — | $743.9M Small Cap | Q1 2025 Held for 8 months | |
Medical - Care Facilities Healthcare | $3.5M 1.92% | — | 0.173% 410.1K shares | — | — | $2.0B Mid Cap | Q4 2023 Held for 1y 11m | |
Communication Equipment Technology | $3.2M 1.78% | — | 0.429% 343.1K shares | — | — | $750.9M Small Cap | Q3 2024 Held for 1y 2m | |
Engineering & Construction Industrials | $2.5M 1.4% | — | 0.042% 53.7K shares | — | — | $6.1B Mid Cap | Q4 2020 Held for 4y 11m | |
Information Technology Services Technology | $2.3M 1.29% | — | 0.081% 50.5K shares | — | — | $2.9B Mid Cap | Q2 2023 Held for 2y 5m | |
Unknown Unknown | $2.0M 1.11% | — | — 456.1K shares | — | — | — — | Q4 2022 Held for 2y 11m | |
Chemicals - Specialty Basic Materials | $2.0M 1.11% | — | 0.2% 228.8K shares | — | — | $1.0B Small Cap | Q1 2023 Held for 2y 8m | |
Internet Content & Information Communication Services | $2.0M 1.11% | — | — 56.7K shares | — | — | — — | Q2 2024 Held for 1y 5m | |
Unknown Unknown | $1.7M 0.913% | — | 0.007% 15.6K shares | — | — | $25.3B Large Cap | Q3 2024 Held for 1y 2m | |
Engineering & Construction Industrials | $1.6M 0.895% | -$1.3M Sold | 0.047% 24.7K shares | 44.7K → 24.7K −$1.3M | -44.76% | $3.5B Mid Cap | Q4 2022 Held for 2y 11m | |
Information Technology Services Technology | $1.4M 0.75% | +$1.2M Bought | 0.056% 99.6K shares | 13.6K → 99.6K +$1.2M | +634.45% | $2.4B Mid Cap | Q2 2024 Held for 1y 5m | |
Oil & Gas Exploration & Production Energy | $1.1M 0.615% | — | 0.012% 29.6K shares | — | — | $9.0B Mid Cap | Q4 2020 Held for 4y 11m | |
Conglomerates Industrials | $1.0M 0.577% | — | 0.03% 286.0 shares | — | — | $3.5B Mid Cap | Q1 2025 Held for 8 months | |
Electrical Equipment & Parts Industrials | $893.5K 0.494% | — | 0.092% 4.6K shares | — | — | $966.0M Small Cap | Q4 2024 Held for 11 months | |
Financial - Credit Services Financial Services | $857.7K 0.474% | — | 0.033% 15.4K shares | — | — | $2.6B Mid Cap | Q1 2022 Held for 3y 8m | |
Oil & Gas Equipment & Services Energy | $816.4K 0.451% | — | 0.085% 124.5K shares | — | — | $964.2M Small Cap | Q1 2022 Held for 3y 8m | |
Agricultural - Machinery Industrials | $745.8K 0.412% | — | 0.009% 5.8K shares | — | — | $8.3B Mid Cap | Q3 2024 Held for 1y 2m | |
Oil & Gas Equipment & Services Energy | $676.0K 0.374% | — | 0.184% 111.6K shares | — | — | $367.2M Small Cap | Q4 2024 Held for 11 months | |
Internet Content & Information Communication Services | $648.1K 0.358% | +$648.1K New | 0.156% 111.6K shares | 0 → 111.6K +$648.1K | New | $415.4M Small Cap | Q3 2025 Held for 2 months | |
Home Improvement Consumer Cyclical | $630.5K 0.348% | — | 0.042% 59.3K shares | — | — | $1.5B Small Cap | Q2 2022 Held for 3y 5m | |
Communication Equipment Technology | $567.6K 0.314% | -$618.8K Sold | 0.12% 16.5K shares | 34.5K → 16.5K −$618.8K | -52.16% | $474.7M Small Cap | Q3 2023 Held for 2y 2m | |
Engineering & Construction Industrials | $275.8K 0.152% | — | 0.004% 6.6K shares | — | — | $6.8B Mid Cap | Q4 2020 Held for 4y 11m | |
Medical - Instruments & Supplies Healthcare | $143.0K 0.079% | +$105.9K Bought | 0.061% 44.6K shares | 11.6K → 44.6K +$105.9K | +285.59% | $234.8M Micro Cap | Q2 2025 Held for 5 months | |
Medical - Distribution Healthcare | $132.3K 0.073% | +$132.3K New | 0.036% 27.6K shares | 0 → 27.6K +$132.3K | New | $370.8M Small Cap | Q3 2025 Held for 2 months | |
Agricultural - Machinery Industrials | $123.9K 0.068% | -$641.6K Sold | 0.031% 12.6K shares | 77.6K → 12.6K −$641.6K | -83.81% | $404.1M Small Cap | Q1 2025 Held for 8 months | |
Manufacturing - Metal Fabrication Industrials | $123.2K 0.068% | — | 0.109% 17.6K shares | — | — | $112.6M Micro Cap | Q4 2023 Held for 1y 11m | |
Consulting Services Industrials | $122.5K 0.068% | +$122.5K New | 0.061% 11.6K shares | 0 → 11.6K +$122.5K | New | $202.3M Micro Cap | Q3 2025 Held for 2 months | |
Drug Manufacturers - Specialty & Generic Healthcare | $58.2K 0.032% | — | 0.18% 75.6K shares | — | — | $32.3M Nano Cap | Q2 2024 Held for 1y 5m | |
Biotechnology Healthcare | $40.1K 0.022% | — | 0.008% 12.6K shares | — | — | $526.1M Small Cap | Q2 2024 Held for 1y 5m | |
Medical - Care Facilities Healthcare | $31.9K 0.018% | +$31.9K New | 0.007% 11.6K shares | 0 → 11.6K +$31.9K | New | $462.2M Small Cap | Q3 2025 Held for 2 months | |
Software - Application Technology | $29.1K 0.016% | +$29.1K New | 0.012% 11.6K shares | 0 → 11.6K +$29.1K | New | $243.2M Micro Cap | Q3 2025 Held for 2 months | |
Conglomerates Industrials | $27.9K 0.015% | — | 0.027% 13.6K shares | — | — | $103.6M Micro Cap | Q1 2025 Held for 8 months | |
Oil & Gas Exploration & Production Energy | $24.7K 0.014% | — | 0.009% 13.6K shares | — | — | $270.0M Micro Cap | Q3 2022 Held for 3y 2m | |
Specialty Retail Consumer Cyclical | $16.4K 0.009% | — | 0.002% 12.6K shares | — | — | $873.9M Small Cap | Q2 2024 Held for 1y 5m | |
Oil & Gas Exploration & Production Energy | - — | -$15.4K Sold | — - shares | 5.6K → 0 −$15.4K | Sold | $224.3M Micro Cap | Q1 2025 Held for 8 months | |
Semiconductors Technology | - — | -$646.4K Sold | — - shares | 34.3K → 0 −$646.4K | Sold | $1.1B Small Cap | Q2 2024 Held for 1y 5m | |
Staffing & Employment Services Industrials | - — | -$132.3K Sold | — - shares | 44.6K → 0 −$132.3K | Sold | $124.3M Micro Cap | Q1 2025 Held for 8 months | |
Banks - Regional Financial Services | - — | -$1.1M Sold | — - shares | 99.6K → 0 −$1.1M | Sold | $1.4B Small Cap | Q2 2024 Held for 1y 5m |
