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Nierenberg Investment Management Company, Inc.

CIK:0001282683
Investment Adviser
$204M AUM
49 holdings
Camas, WA, US
Founded:2002
5 employees
Latest filing:Jun 30, 2025

Nierenberg Investment Management Company, Inc. is a value-focused investment management firm headquartered in Camas, Washington. Founded and led by David Nierenberg, the company is known for its concentrated investment approach and activist style, primarily managing assets for high-net-worth individuals, institutional investors, and affiliated private funds. The firm is recognized for active involvement with portfolio companies and long-term engagement. It employs a small, specialized team and has been operating since at least the early 2000s.

Investment Strategy

Nierenberg Investment Management Company pursues a value-oriented investment strategy with significant concentration in select equity positions, often in small and mid-cap companies. The firm demonstrates activist tendencies—engaging with management and boards to create shareholder value and drive corporate change. Investments are typically long-term, with thorough fundamental analysis and active monitoring of portfolio companies. It primarily invests through dedicated funds like the Benedict Value Fund, the D3 Family Fund, and others.

Top Buys
P
PBPBPOTBELLY CORP
+$8.2M
C
COOPMR COOPER GROUP INC
+$3.8M
C
CRTOCRITEO S A
+$3.4M
G
GDOTGREEN DOT CORP
+$3.0M
E
EQTEQT CORP
+$2.6M
Top Sells
C
CTLPCANTALOUPE INC
-$19.4M
F
FFICFLUSHING FINL CORP
-$984.9K
C
CNXCCONCENTRIX CORP
-$919.5K
A
ADTNADTRAN HOLDINGS INC
-$716.5K
S
SUPSUPERIOR INDS INTL INC
-$710.5K

Top Holdings

C
COOPMR COOPER GROUP INC
+23.5%$44.2M
P
PBPBPOTBELLY CORP
+19.4%$36.5M
E
EQTEQT CORP
+16.6%$31.3M
C
CRTOCRITEO S A
+6.8%$12.8M
R
RVSBRIVERVIEW BANCORP INC
+5.7%$10.7M

Equity Positions (39)

TickerSecurityWeightMarket ValueSharesAvg CostPriceChange (QoQ)
C
COOP
MR COOPER GROUP INC23.47%$44.2M296,054$31.05$149.21+$3.8M
P
PBPB
POTBELLY CORP19.40%$36.5M2,980,564$6.45$12.25+$8.2M
E
EQT
EQT CORP16.63%$31.3M536,693$15.53$58.32+$2.6M
C
CRTO
CRITEO S A6.82%$12.8M535,702$30.18$23.96+$3.4M
R
RVSB
RIVERVIEW BANCORP INC5.66%$10.7M1,937,775$4.98$5.50+$1.4M

Options Positions (10)

TickerSecurityActionTypeNotional ValueContractsUnderlying PricePremium PaidChange (Contracts)Change (Value)
G
GEV
GE VERNOVA INC
Put
$4.9M92$529.15$305.280+$2.1M
Q
QQQ
INVESCO QQQ TR
Put
$3.4M61$551.64$468.920+$504.6K
N
NVDA
NVIDIA CORPORATION
Put
$1.7M108$157.99$108.380+$535.8K
C
CEG
CONSTELLATION ENERGY CORP
Put
$1.6M51$322.76$201.630+$617.8K
E
EXE
EXPAND ENERGY CORPORATION
Call
$1.6M140$116.94$82.500+$78.7K

Industry Allocation

FINANCE SERVICES
+25.4%
RETAIL-EATING PLACES
+19.4%
CRUDE PETROLEUM & NATURAL GAS
+19.4%
SERVICES-ADVERTISING AGENCIES
+6.8%
SAVINGS INSTITUTION, FEDERALLY CHARTERED
+5.7%