Nierenberg Investment Management Company, LLC

CIK

1282683

Location

Camas, WA

Portfolio Value

Small $155,031,794

Diversification

Diversified

Filing Date

Global Rank

#5,159 / 8,694 ▲ 823

Top Industry

Oil & Gas E&P 20.2%

Period ended 2 months ago

Filed Aug 11, 2026 · 30d

23 quarters · since Dec 2020

Portfolio Concentration

34 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026

Top Position

18.3%

−9.4 pts

Top 5

60.4%

−9.4 pts

Top 10

84.7%

−2.9 pts

HHI

948

Diversified−407

Portfolio Trend

23 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026

Sector	% Portfolio	Value	Positions
Energy	20.3%	$31,424,142	5
Industrials	17.9%	$27,818,693	7
Technology	16.5%	$25,504,389	8
Financial Services	15.5%	$24,044,643	4
Communication Services	12.4%	$19,244,946	1
Consumer Cyclical	9.0%	$13,924,546	2
Healthcare	5.7%	$8,828,612	6
Real Estate	2.7%	$4,241,823	1

Last Quarter's Activity

Export CSV

Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased

2 positions

Ticker	Company	Δ Shares	Shares	Value
TNDM	Tandem Diabetes Care Inc	+79,400	158,910	$2,397,951
FCN	Fti Consulting, Inc	+64,107	73,887	$11,009,901
No positions match the current search.

Trimmed

Positions the filer reduced

2 positions

Ticker	Company	Δ Shares	Shares	Value
TTGT	TechTarget, Inc.	−66,000	136,910	$492,876
CNXC	Concentrix Corp	−20,000	64,480	$1,444,674
No positions match the current search.

New Positions

Positions the filer opened this quarter

3 positions

Ticker	Company	Shares	Value
HAE	Haemonetics Corp	26,280	$1,971,000
REI	Ring Energy, Inc.	1,399,555	$1,511,519
CNDT	CONDUENT Inc	17,555	$25,630
No positions match the current search.

Sold Out

Positions the filer fully exited

13 positions

Ticker	Company	Shares	Value
AAXJ	iShares MSCI All Country Asia ex Japan ETF	550,597	$55,423,094
ADTN	ADTRAN Holdings, Inc.	93,110	$1,171,323
OCFC	Oceanfirst Financial Corp	39,555	$713,572
HOPE	Hope Bancorp Inc	63,555	$709,909
CLFD	Clearfield, Inc.	16,510	$437,019
PLAB	Photronics Inc	6,330	$255,795
BFH	Bread Financial Holdings, Inc.	3,380	$253,128
PTLO	Portillo's Inc.	33,555	$177,505
ACH	Accendra Health Inc/Va/	77,555	$176,825
WNC	WABASH NATIONAL Corp	12,555	$108,224
SCYX	Scynexis Inc	75,555	$69,283
—		12,555	$0
—		144,555	$0
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

34 tracked positions · $155,031,794 total · filing declares 35 positions · $201,445,405 · as of Jun 30, 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	$28,358,910	−16.5%	18.29%
CRTO	Criteo S.A. Communication Services	Held	1,052,787	0	$19,244,946	+2.0%	12.41%
LYFT	Lyft, Inc. Technology	Held	1,295,623	0	$18,929,052	+9.8%	12.21%
CART	Maplebear Inc. Consumer Cyclical	Held	291,888	0	$13,820,896	+26.4%	8.91%
KBR	Kbr, Inc. Industrials	Held	386,443	0	$13,343,876	−6.3%	8.61%
RVSB	Riverview Bancorp Inc Financial Services	Held	2,032,775	0	$11,037,968	−1.3%	7.12%
FCN	Fti Consulting, Inc Industrials	Added	73,887	+64,107	$11,009,901	+536.8%	7.10%
RKT	Rocket Companies, Inc. Financial Services	Held	429,631	0	$6,766,688	+10.5%	4.36%
GDOT	Green Dot Corp Financial Services	Held	339,110	0	$4,581,376	+20.4%	2.96%
DHC	Diversified Healthcare Trust Real Estate	Held	456,110	0	$4,241,823	+40.1%	2.74%
BKD	Brookdale Senior Living Inc. Healthcare	Held	255,110	0	$4,104,719	+17.6%	2.65%
FIVN	Five9, Inc. Technology	Held	135,810	0	$2,895,469	+40.5%	1.87%
TNDM	Tandem Diabetes Care Inc Healthcare	Added	158,910	+79,400	$2,397,951	+57.3%	1.55%
HAE	Haemonetics Corp Healthcare	NEW	26,280	NEW	$1,971,000	NEW	1.27%
GLRE	Greenlight Capital Re, Ltd. Financial Services	Held	102,510	0	$1,658,611	−6.4%	1.07%
REI	Ring Energy, Inc. Energy	NEW	1,399,555	NEW	$1,511,519	NEW	0.97%
CNXC	Concentrix Corp Technology	Reduced	64,480	-20,000	$1,444,674	−37.5%	0.93%
EXE	EXPAND ENERGY Corp Energy	Held	15,555	0	$1,418,460	−16.9%	0.91%
FORR	Forrester Research, Inc. Industrials	Held	131,110	0	$1,102,635	+48.6%	0.71%
HOS	Hornbeck Offshore Services, Inc. Industrials	Held	124,450	0	$1,087,693	−11.6%	0.70%
DXC	DXC Technology Co Technology	Held	102,510	0	$907,213	−29.6%	0.59%
OSK	Oshkosh Corp Industrials	Held	5,750	0	$882,510	+4.3%	0.57%
TTEC	TTEC Holdings, Inc. Technology	Held	255,555	0	$495,776	−22.4%	0.32%
TTGT	TechTarget, Inc. Technology	Reduced	136,910	-66,000	$492,876	−37.4%	0.32%
FLR	Fluor Corp Industrials	Held	6,555	0	$343,416	+12.3%	0.22%
DHX	Dhi Group, Inc. Technology	Held	84,555	0	$313,699	+32.0%	0.20%
OSUR	Orasure Technologies Inc Healthcare	Held	55,555	0	$247,775	+48.7%	0.16%
ARHS	Arhaus, Inc. Consumer Cyclical	Held	12,310	0	$103,650	+24.2%	0.07%
OIS	Oil States International, Inc Energy	Held	11,555	0	$92,555	−31.2%	0.06%
		Held	11,555	0	$60,086	+0.5%	0.04%
NNBR	Nn Inc Industrials	Held	13,555	0	$48,662	+147.6%	0.03%
CTMX	CytomX Therapeutics, Inc. Healthcare	Held	12,555	0	$47,081	−20.2%	0.03%
WTI	W&T Offshore Inc Energy	Held	13,555	0	$42,698	−7.6%	0.03%
CNDT	CONDUENT Inc Technology	NEW	17,555	NEW	$25,630	NEW	0.02%

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.