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Q2 2026 13F · SEC CIK 1282683

Nierenberg Investment Management Company, LLC

Hedge fundFiled 2026-08-11 for Q2 2026. Open the filing ↗ · All SEC filings ↗

Reported 13F value
$201.4M
Reported positions
35
Top holdings a year, 3 yrs
+26.1%
Assets under management
$235.5M

Nierenberg Investment Management Company, LLC is a hedge fund that reported 35 positions worth $201.4M in its Q2 2026 13F, filed 2026-08-11. Its largest holdings were iShares 0-3 Month Treasury Bon (SGOV, 23.0%), EQT Corp (EQT, 14.1%), Criteo SA (CRTO, 9.6%). A portfolio copying its top holdings returned 26.1% a year over the last 3 years, against 21.3% for the S&P 500.

Nierenberg Investment Management Company, LLC holdings all 35 positions.

Weights are shares of the filer's total reported 13F value, compared with Q1 2026. Share changes may reflect splits; weight changes also reflect price moves. A 13F shows long US-listed positions only, up to 135 days after the fact.

Nierenberg Investment Management Company, LLC 13F holdings
Stock% of 13F valueShare changeReported value
SGOViShares 0-3 Month Treasury Bon23.0%-16.3%$46.4M
EQTEQT Corp14.1%+0.0%$28.4M
CRTOCriteo SA9.6%+0.0%$19.2M
LYFTLyft Inc9.4%+0.0%$18.9M
CARTMaplebear Inc.6.9%+0.0%$13.8M
KBRKbr Inc6.6%+0.0%$13.3M
RVSBRiverview Bancorp Inc5.5%+0.0%$11.0M
FCNFti Consulting Inc.5.5%+655.5%$11.0M
RKTRocket Cos Inc3.4%+0.0%$6.8M
GDOTGreen Dot Corp2.3%+0.0%$4.6M
DHCDiversified Healthcare Tr2.1%+0.0%$4.2M
BKDBrookdale Sr Living Inc2.0%+0.0%$4.1M
FIVNFive9 Inc1.4%+0.0%$2.9M
TNDMTandem Diabetes Care Inc1.2%+99.9%$2.4M
HAEHaemonetics Corp1.0%—$2.0M
GLREGreenlight Cap Re Ltd0.8%+0.0%$1.7M
REIRing Energy Inc0.8%—$1.5M
CNXCConcentrix Corp0.7%+0.0%$1.4M
EXEExpand Energy Corporation0.7%+0.0%$1.4M
FORRForrester Research Inc0.5%+0.0%$1.1M
HLXHelix Energy Solutions Group I0.5%+0.0%$1.1M
DXCDxc Technology Co0.5%+0.0%$907K
OSKOshkosh Corp0.4%+0.0%$883K
TTECTtec Hldgs Inc0.2%+0.0%$496K
TTGTTechtarget Inc0.2%-32.5%$493K
FLRFluor Corp0.2%+0.0%$343K
DHXDHI Group0.2%+0.0%$314K
OSUROraSure Technologies Inc0.1%+0.0%$248K
ARHSArhaus Inc0.1%+0.0%$104K
OISOil Sts Intl Inc0.0%+0.0%$93K
TALKTalkspace Inc0.0%+0.0%$60K
NNBRNn Inc0.0%+0.0%$49K
CTMXCytomx Therapeutics Inc.0.0%+0.0%$47K
WTIW & T Offshore Inc0.0%+0.0%$43K
CNDTConduent Inc0.0%—$26K

What Nierenberg Investment Management Company, LLC bought and sold in Q2 2026, against Q1 2026.

New positions

Added to

Reduced

Sold out

Share counts compared with the Q1 2026 13F; a split also changes share counts.

How the holdings did against the S&P 500.

1 year
+15.8% /yr
S&P 500 +23.4%
3 years
+26.1% /yr
S&P 500 +21.3%
5 years
+22.9% /yr
S&P 500 +11.6%

A portfolio of the filer's 20 largest 13F positions, weighted by value and rebuilt each quarter on the day the filing became public. 13Fs show long US-listed positions only, so this is an estimate of the stock picks, not the fund's reported returns.

Reported 13F value by quarter.

13F value by quarter
Quarter13F valuePositions
Q2 2026$201.4M35
Q1 2026$200.8M44
Q4 2025$198.2M43
Q3 2025$180.9M40
Q2 2025$171.4M39
Q1 2025$171.2M47
Q4 2024$170.9M46
Q3 2024$166.9M47
Q2 2024$170.6M45
Q1 2024$171.0M35
Q4 2023$157.8M37
Q3 2023$139.3M33

Questions about Nierenberg Investment Management Company, LLC's portfolio

What stocks does Nierenberg Investment Management Company, LLC own?

Nierenberg Investment Management Company, LLC's latest 13F, for Q2 2026 and filed Aug 11, 2026, lists 35 positions worth $201.4M. The largest are iShares 0-3 Month Treasury Bon (SGOV) at 23.0%, EQT Corp (EQT) at 14.1%, Criteo SA (CRTO) at 9.6%, Lyft Inc (LYFT) at 9.4% and Maplebear Inc. (CART) at 6.9%.

What did Nierenberg Investment Management Company, LLC buy last quarter?

In Q2 2026, Nierenberg Investment Management Company, LLC added a new position in Haemonetics Corp (HAE), a new position in Ring Energy Inc (REI), a new position in Conduent Inc (CNDT), Fti Consulting Inc. (FCN) (+655.5% shares) and Tandem Diabetes Care Inc (TNDM) (+99.9% shares), compared with its Q1 2026 filing.

What did Nierenberg Investment Management Company, LLC sell last quarter?

In Q2 2026, Nierenberg Investment Management Company, LLC sold all of Cross Country Healthcare Inc (CCRN), sold all of Adtran Holdings Inc Com (ADTN), sold all of OceanFirst Financial (OCFC) (OCFC), sold all of Hope Bancorp Inc (HOPE), sold all of Clearfield Inc (CLFD), Techtarget Inc (TTGT) (-32.5% shares) and iShares 0-3 Month Treasury Bon (SGOV) (-16.3% shares), compared with its Q1 2026 filing.

How has Nierenberg Investment Management Company, LLC's portfolio performed?

A portfolio copying Nierenberg Investment Management Company, LLC's 20 largest 13F holdings each quarter, from the day each filing was public, returned +26.1% a year over the last 3 years, against +21.3% for the S&P 500. Over 1 year: +15.8% against +23.4%. Over 5 years: +22.9% a year against +11.6%.

When is Nierenberg Investment Management Company, LLC's next 13F filing due?

13F filings are due 45 days after each quarter ends. Nierenberg Investment Management Company, LLC's filing for the quarter ending Sep 30, 2026 is due by Nov 14, 2026; this page updates the day after it is published.

How much money does Nierenberg Investment Management Company, LLC manage?

Nierenberg Investment Management Company, LLC reported $235.5M of regulatory assets under management on its latest SEC Form ADV. Its 13F, which covers only US-listed stocks and options, totals $201.4M.