Nierenberg Investment Management Company, LLC

Q4 2025 13F-HR Detailed Holdings

Location
Camas, WA
Holdings as of
12/31/2025
Date filed
2/13/2026
Form type
13F-HR
Num holdings
47
Total value ($000)
$205,959
Net value change ($000)
-28,038 (-12.0%)
New positions
9
Sold out positions
6
Turnover %
90.0%
Sector allocation + QoQ delta (equities-only)

Holdings broken out by other managers reported in the original SEC filing. View aggregated holdings

Prev filing: 11/12/2025 Next filing: — SEC filing
You are on the SEC detailed breakdown page. Rows are shown as reported in the filing (including other manager, discretion, and voting authority fields), and are not merged like the standard holdings view. Switch to aggregated holdings.

Snapshot: Change Analysis

Compared to Q3 2025
Methodology: sector metrics are equities-only; instrument mix chart is ex-options; options exposure is shown separately. Why this matters.
Top Adds (Value $000, Stocks/ETFs)
SGOV 64,303 NEW
RKT 25,877 NEW
CRTO 8,716 90.8%
FCN 1,632 NEW
VRT 1,134 NEW
TNDM 979 NEW
BKD 951 27.4%
GLRE 810 NEW
KBR 423 16.7%
CNXC 351 15.1%
Top Reduces (Value $000, Stocks/ETFs)
PBPB -50,789 -100.0%
COOP -26,585 -100.0%
ADTN -2,409 -74.9%
LYFT -2,147 -12.0%
MTCH -2,002 -100.0%
TPC -1,619 -100.0%
RRC -1,112 -100.0%
PLPC -893 -100.0%
RVSB -711 -6.5%
EQT -624 -2.1%
Instrument mix + QoQ Δ (ex-options)
Derivatives reported exposure ($000): 7,764 (3.8% of total reported value)
How this table is calculated: SEC VALUE ($000) is used as reported. For derivatives (PUT/CALL/WARRANT/RIGHT), SEC value represents reported underlying exposure, not premium cash paid/received. Column % is bucket-based: non-options share is calculated inside non-option total, options share is calculated inside options total. Details.
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Instrument:
Issuer Name Ticker Sector Industry Class History Value ($000) % Shares Shares Δ Shares Δ% Value Δ ($000) Value Δ% Principal Option Type Discretion Other Manager Sole Shared None