Nierenberg Investment Management Company, LLC

CIK

1282683

Location

Camas, WA

Portfolio Value

Small $146,548,974

Diversification

Diversified

Filing Date

Global Rank

#4,898 / 8,617 ▲ 222 · as of Mar 2026

Top Industry

Oil & Gas E&P 24.4%

3Y Alpha vs SPY

-6.7%

Period ended 4 months ago

Filed May 13, 2026 · 2mo

22 quarters · since Dec 2020

Clone Performance

Jul 2023–Jul 2026 · vs SPY

Hypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.

Cloned portfolio

+40.8%

SPY

+69.1%

Annualised alpha

-7.0%

Max drawdown

−21.7%

Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.

Portfolio Concentration

43 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025

Top Position

23.2%

+3.0 pts

Top 5

65.1%

−4.5 pts

Top 10

83.8%

−0.3 pts

HHI

1,098

Diversified−44

Portfolio Trend

22 quarters · across all stocks

Sector Breakdown

As of Mar 31, 2026

Sector	% Portfolio	Value	Positions
Energy	25.3%	$37,062,380	5
Technology	18.0%	$26,419,857	10
Financial Services	16.8%	$24,556,323	7
Communication Services	12.9%	$18,876,470	1
Industrials	12.3%	$17,995,305	7
Consumer Cyclical	7.7%	$11,220,576	4
Healthcare	5.0%	$7,389,493	8
Real Estate	2.1%	$3,028,570	1

Last Quarter's Activity

Export CSV

Mar 31, 2026 vs Dec 31, 2025

Added To

Positions the filer increased

11 positions

Ticker	Company	Δ Shares	Shares	Value
LYFT	Lyft, Inc.	+482,068	1,295,623	$17,231,785
KBR	Kbr, Inc.	+312,733	386,443	$14,244,288
TTEC	TTEC Holdings, Inc.	+200,000	255,555	$638,887
CRTO	Criteo S.A.	+163,899	1,052,787	$18,876,470
FORR	Forrester Research, Inc.	+119,555	131,110	$742,082
TTGT	TechTarget, Inc.	+66,000	202,910	$787,290
HOPE	Hope Bancorp Inc	+51,000	63,555	$709,909
GLRE	Greenlight Capital Re, Ltd.	+46,955	102,510	$1,772,397
TNDM	Tandem Diabetes Care Inc	+34,955	79,510	$1,524,206
OSUR	Orasure Technologies Inc	+11,000	55,555	$166,665
FCN	Fti Consulting, Inc	+225	9,780	$1,728,810
No positions match the current search.

Trimmed

Positions the filer reduced

7 positions

Ticker	Company	Δ Shares	Shares	Value
RKT	Rocket Companies, Inc.	−907,000	429,631	$6,122,241
BKD	Brookdale Senior Living Inc.	−155,000	255,110	$3,489,904
OIS	Oil States International, Inc	−100,000	11,555	$134,500
ACH	Accendra Health Inc/Va/	−100,000	77,555	$176,825
EXE	EXPAND ENERGY Corp	−14,000	15,555	$1,707,627
BFH	Bread Financial Holdings, Inc.	−12,000	3,380	$253,128
ARHS	Arhaus, Inc.	−3,000	12,310	$83,461
No positions match the current search.

New Positions

Positions the filer opened this quarter

6 positions

Ticker	Company	Shares	Value
CART	Maplebear Inc.	291,888	$10,934,124
FIVN	Five9, Inc.	135,810	$2,060,237
CCRN	Cross Country Healthcare Inc	144,555	$1,358,817
OCFC	Oceanfirst Financial Corp	39,555	$713,572
DHX	Dhi Group, Inc.	84,555	$237,599
PTLO	Portillo's Inc.	33,555	$177,505
No positions match the current search.

Sold Out

Positions the filer fully exited

4 positions

Ticker	Company	Shares	Value
GEV	GE Vernova Inc.	7,600	$4,967,132
ECVT	Ecovyst Inc.	228,810	$2,226,321
SEB	Seaboard Corp /De/	286	$1,271,218
VRT	Vertiv Holdings Co	7,000	$1,134,070
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

43 positions · $146,548,974 total · as of Mar 31, 2026

All sectors Communication Services Consumer Cyclical Energy Financial Services Healthcare Industrials Real Estate Technology

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
EQT	EQT Corp Energy	Held	533,363	0	$33,943,221	+18.7%	23.16%
CRTO	Criteo S.A. Communication Services	Added	1,052,787	+163,899	$18,876,470	+3.0%	12.88%
LYFT	Lyft, Inc. Technology	Added	1,295,623	+482,068	$17,231,785	+9.3%	11.76%
KBR	Kbr, Inc. Industrials	Added	386,443	+312,733	$14,244,288	+380.7%	9.72%
RVSB	Riverview Bancorp Inc Financial Services	Held	2,032,775	0	$11,180,262	+9.6%	7.63%
CART	Maplebear Inc. Consumer Cyclical	NEW	291,888	NEW	$10,934,124	NEW	7.46%
RKT	Rocket Companies, Inc. Financial Services	Reduced	429,631	-907,000	$6,122,241	−76.3%	4.18%
GDOT	Green Dot Corp Financial Services	Held	339,110	0	$3,804,814	−12.4%	2.60%
BKD	Brookdale Senior Living Inc. Healthcare	Reduced	255,110	-155,000	$3,489,904	−21.1%	2.38%
DHC	Diversified Healthcare Trust Real Estate	Held	456,110	0	$3,028,570	+36.9%	2.07%
CNXC	Concentrix Corp Technology	Held	84,480	0	$2,311,372	−34.2%	1.58%
FIVN	Five9, Inc. Technology	NEW	135,810	NEW	$2,060,237	NEW	1.41%
GLRE	Greenlight Capital Re, Ltd. Financial Services	Added	102,510	+46,955	$1,772,397	+118.8%	1.21%
FCN	Fti Consulting, Inc Industrials	Added	9,780	+225	$1,728,810	+5.9%	1.18%
EXE	EXPAND ENERGY Corp Energy	Reduced	15,555	-14,000	$1,707,627	−47.6%	1.17%
TNDM	Tandem Diabetes Care Inc Healthcare	Added	79,510	+34,955	$1,524,206	+55.6%	1.04%
CCRN	Cross Country Healthcare Inc Healthcare	NEW	144,555	NEW	$1,358,817	NEW	0.93%
DXC	DXC Technology Co Technology	Held	102,510	0	$1,288,550	−14.2%	0.88%
HLX	Helix Energy Solutions Group Inc Energy	Held	124,450	0	$1,230,810	+57.7%	0.84%
ADTN	ADTRAN Holdings, Inc. Technology	Held	93,110	0	$1,171,323	+44.8%	0.80%
OSK	Oshkosh Corp Industrials	Held	5,750	0	$846,457	+17.2%	0.58%
TTGT	TechTarget, Inc. Technology	Added	202,910	+66,000	$787,290	+6.5%	0.54%
FORR	Forrester Research, Inc. Industrials	Added	131,110	+119,555	$742,082	+690.9%	0.51%
OCFC	Oceanfirst Financial Corp Financial Services	NEW	39,555	NEW	$713,572	NEW	0.49%
HOPE	Hope Bancorp Inc Financial Services	Added	63,555	+51,000	$709,909	+415.9%	0.48%
TTEC	TTEC Holdings, Inc. Technology	Added	255,555	+200,000	$638,887	+219.4%	0.44%
SCYX	Scynexis Inc Healthcare	Held	75,555	0	$554,271	+45.1%	0.38%
CLFD	Clearfield, Inc. Technology	Held	16,510	0	$437,019	−9.2%	0.30%
FLR	Fluor Corp Industrials	Held	6,555	0	$305,790	+17.7%	0.21%
PLAB	Photronics Inc Technology	Held	6,330	0	$255,795	+26.3%	0.17%
BFH	Bread Financial Holdings, Inc. Financial Services	Reduced	3,380	-12,000	$253,128	−77.8%	0.17%
DHX	Dhi Group, Inc. Technology	NEW	84,555	NEW	$237,599	NEW	0.16%
PTLO	Portillo's Inc. Consumer Cyclical	NEW	33,555	NEW	$177,505	NEW	0.12%
ACH	Accendra Health Inc/Va/ Healthcare	Reduced	77,555	-100,000	$176,825	−64.4%	0.12%
OSUR	Orasure Technologies Inc Healthcare	Added	55,555	+11,000	$166,665	+54.6%	0.11%
OIS	Oil States International, Inc Energy	Reduced	11,555	-100,000	$134,500	−82.2%	0.09%
WNC	WABASH NATIONAL Corp Industrials	Held	12,555	0	$108,224	−0.3%	0.07%
ARHS	Arhaus, Inc. Consumer Cyclical	Reduced	12,310	-3,000	$83,461	−51.4%	0.06%
TALK	Talkspace, Inc. Healthcare	Held	11,555	0	$59,797	+42.6%	0.04%
CTMX	CytomX Therapeutics, Inc. Healthcare	Held	12,555	0	$59,008	+10.3%	0.04%
WTI	W&T Offshore Inc Energy	Held	13,555	0	$46,222	+109.2%	0.03%
OLPX	Olaplex Holdings, Inc. Consumer Cyclical	Held	12,555	0	$25,486	+51.5%	0.02%
NNBR	Nn Inc Industrials	Held	13,555	0	$19,654	+13.3%	0.01%