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Nierenberg Investment Management Company, LLC

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13F filer, CIK 1282683, Camas, WA

Nierenberg Investment Management Company, LLC reported $183,236,209 across 57 holdings for the quarter ended 2025-03-31, in a 13F-HR filed 2025-05-13. Its ten largest share positions make up 86.48% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001941040-25-000290

Period
2025-03-31
Reported value
$183M
Holdings
57
Top 10 weight
86.48%
New
16
Sold out
10

Largest buys vs the previous quarter

SecurityShares changeApprox. value
CRTOadded+198,943$7.04M
RVSBadded+346,612$1.96M
BKDadded+250,000$1.56M
BREAD FINANCIAL HOLDINGS INnew+27,680$1.39M
ADTNadded+92,000$802K

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Largest sells vs the previous quarter

SecurityShares changeApprox. value
EBCexited-613,088-$10.6M
FLRreduced-116,000-$4.16M
MR COOPER GROUP INCreduced-25,700-$3.07M
BFHexited-27,680-$1.69M
CTLPreduced-174,124-$1.37M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Holdings, Q1 2025

Share positions as resolved from 13F-HR 0001941040-25-000290, largest first. % of portfolio is the value over $171,227,492, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
MR COOPER GROUP INCMR COOPER GROUP INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 363,004 shares; 2024Q4: 363,004 shares; 2025Q1: 337,304 shares 337,304$40.3M23.56%-25,700
EQTEQT CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 536,693 shares; 2024Q4: 536,693 shares; 2025Q1: 536,693 shares 536,693$28.7M16.75%0Timeline
POTBELLY CORPPOTBELLY CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 2,980,564 shares; 2024Q4: 2,980,564 shares; 2025Q1: 2,980,564 shares 2,980,564$28.3M16.55%0
CTLPCANTALOUPE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 2,641,658 shares; 2024Q4: 2,641,658 shares; 2025Q1: 2,467,534 shares 2,467,534$19.4M11.34%-174,124Timeline
CRTOCRITEO S AQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 67,555 shares; 2025Q1: 266,498 shares 266,498$9.44M5.51%+198,943Timeline
RVSBRIVERVIEW BANCORP INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1,060,600 shares; 2024Q4: 1,286,422 shares; 2025Q1: 1,633,034 shares 1,633,034$9.23M5.39%+346,612Timeline
ADTNADTRAN HOLDINGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 343,110 shares; 2024Q4: 343,110 shares; 2025Q1: 435,110 shares 435,110$3.79M2.22%+92,000Timeline
CNXCCONCENTRIX CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 34,310 shares; 2024Q4: 64,480 shares; 2025Q1: 64,480 shares 64,480$3.59M2.1%0Timeline
KBRKBR INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 50,710 shares; 2024Q4: 50,710 shares; 2025Q1: 53,710 shares 53,710$2.68M1.56%+3,000Timeline
BKDBROOKDALE SR LIVING INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 160,110 shares; 2024Q4: 160,110 shares; 2025Q1: 410,110 shares 410,110$2.57M1.5%+250,000Timeline
EXEEXPAND ENERGY CORPORATIONQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 255 shares; 2024Q4: 19,555 shares; 2025Q1: 19,555 shares 19,555$2.18M1.27%0Timeline
MTCHMATCH GROUP INC NEWQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 57,230 shares; 2024Q4: 57,230 shares; 2025Q1: 57,230 shares 57,230$1.79M1.04%0Timeline
TPCTUTOR PERINI CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 91,680 shares; 2024Q4: 66,680 shares; 2025Q1: 66,680 shares 66,680$1.55M0.9%0Timeline
ECVTECOVYST INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 227,610 shares; 2024Q4: 228,810 shares; 2025Q1: 228,810 shares 228,810$1.42M0.83%0Timeline
BREAD FINANCIAL HOLDINGS INBREAD FINANCIAL HOLDINGS INQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 27,680 shares 27,680$1.39M0.81%new
CLFDCLEARFIELD INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 57,510 shares; 2024Q4: 41,510 shares; 2025Q1: 40,510 shares 40,510$1.2M0.7%-1,000Timeline
RRCRANGE RES CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 29,555 shares; 2024Q4: 29,555 shares; 2025Q1: 29,555 shares 29,555$1.18M0.69%0Timeline
DHCDIVERSIFIED HEALTHCARE TRQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 456,110 shares; 2024Q4: 456,110 shares; 2025Q1: 456,110 shares 456,110$1.09M0.64%0Timeline
HOPEHOPE BANCORP INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 99,555 shares; 2024Q4: 99,555 shares; 2025Q1: 99,555 shares 99,555$1.04M0.61%0Timeline
HOSHORNBECK OFFSHORE SERVICES IQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 113,450 shares; 2024Q4: 124,450 shares; 2025Q1: 124,450 shares 124,450$1.03M0.6%0Timeline
FFICFLUSHING FINL CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 77,555 shares; 2024Q4: 77,555 shares; 2025Q1: 77,555 shares 77,555$985K0.58%0Timeline
SEBSEABOARD CORP DELQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 286 shares 286$771K0.45%newTimeline
SUPERIOR INDS INTL INCSUPERIOR INDS INTL INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 111,555 shares; 2024Q4: 128,793 shares; 2025Q1: 333,555 shares 333,555$710K0.41%+204,762
GDOTGREEN DOT CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 77,555 shares 77,555$655K0.38%newTimeline
GIFIGULF ISLAND FABRICATION INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 155,555 shares; 2024Q4: 155,555 shares; 2025Q1: 99,555 shares 99,555$643K0.38%-56,000Timeline
PLPCPREFORMED LINE PRODS COQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 4,555 shares; 2025Q1: 4,555 shares 4,555$638K0.37%0Timeline
WNCWABASH NATL CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 55,555 shares 55,555$614K0.36%newTimeline
OISOIL STS INTL INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 23,555 shares; 2025Q1: 111,555 shares 111,555$575K0.34%+88,000Timeline
MTRXMATRIX SVC COQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 49,555 shares; 2024Q4: 49,555 shares; 2025Q1: 44,555 shares 44,555$554K0.32%-5,000Timeline
OSKOSHKOSH CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 5,555 shares; 2024Q4: 5,750 shares; 2025Q1: 5,750 shares 5,750$541K0.32%0Timeline
ARHSARHAUS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 59,310 shares; 2024Q4: 59,310 shares; 2025Q1: 59,310 shares 59,310$516K0.3%0Timeline
NNBRNN INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 222,555 shares 222,555$503K0.29%newTimeline
PLABPHOTRONICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 23,330 shares; 2024Q4: 23,330 shares; 2025Q1: 23,330 shares 23,330$484K0.28%0Timeline
FLRFLUOR CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 432,058 shares; 2024Q4: 122,555 shares; 2025Q1: 6,555 shares 6,555$235K0.14%-116,000Timeline
DXCDXC TECHNOLOGY COQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 13,555 shares; 2024Q4: 13,555 shares; 2025Q1: 13,555 shares 13,555$231K0.13%0Timeline
ARRYARRAY TECHNOLOGIES INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 19,555 shares; 2024Q4: 19,555 shares; 2025Q1: 19,555 shares 19,555$95.2K0.06%0Timeline
UFIUNIFI INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 17,555 shares; 2024Q4: 17,555 shares; 2025Q1: 17,555 shares 17,555$84.4K0.05%0Timeline
FFWMFIRST FNDTN INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 15,555 shares; 2024Q4: 15,555 shares; 2025Q1: 15,555 shares 15,555$80.7K0.05%0Timeline
NAGENIAGEN BIOSCIENCE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 11,555 shares; 2024Q4: 11,555 shares; 2025Q1: 11,555 shares 11,555$79.7K0.05%0Timeline
SCYXSCYNEXIS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 75,555 shares; 2024Q4: 75,555 shares; 2025Q1: 75,555 shares 75,555$71.9K0.04%0Timeline
BIG 5 SPORTING GOODS CORPBIG 5 SPORTING GOODS CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 67,555 shares; 2025Q1: 67,555 shares 67,555$65.3K0.04%0
DHXDHI GROUP INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 44,555 shares 44,555$61.9K0.04%newTimeline
Enzo Biochem IncEnzo Biochem IncQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 88,555 shares; 2024Q4: 88,555 shares; 2025Q1: 88,555 shares 88,555$32.8K0.02%0
WTIW & T OFFSHORE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 13,555 shares; 2024Q4: 13,555 shares; 2025Q1: 13,555 shares 13,555$21K0.01%0Timeline
BRYBerry CorpQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 5,555 shares 5,555$17.8K0.01%newTimeline
OLPXOLAPLEX HLDGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 12,555 shares; 2024Q4: 12,555 shares; 2025Q1: 12,555 shares 12,555$15.9K0.01%0Timeline
CTMXCYTOMX THERAPEUTICS INC.Quarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 12,555 shares; 2024Q4: 12,555 shares; 2025Q1: 12,555 shares 12,555$7.98K<0.01%0Timeline

Options

Puts and calls, as filed. The amount and value describe the underlying shares, not the option premium, so they stay out of % of portfolio (H5).

SecurityTypeAmountValueChange
QQQINVESCO QQQ TR COMput6,100$2.86Mnew
GEVGE VERNOVA INC COMput9,200$2.81Mnew
EXEEXPAND ENERGY CORPORATION Stockcall14,000$1.56M0
NVDANVIDIA CORPORATION COMput10,800$1.17Mnew
CEGCONSTELLATION ENERGY CORP Stockput5,100$1.03Mnew
VRTVERTIV HOLDINGS CO Stockput9,200$664Knew
AVGOBROADCOM INC COMput3,200$536Knew
BRYBerry Corp Common Stockcall160,000$514Knew
ETNEATON CORP PLC COMput1,600$435Knew
ANETARISTA NETWORKS INC COMput5,600$434Knew

Sold out in Q1 2025

Positions in the previous quarter's report that this quarter's report no longer lists.

SecurityShares beforeValue beforeType
EBCEASTERN BANKSHARES INC613,088$10.6Mshares
EQTEQT CORP116,000$5.35Mcall
BFHBREAD FINANCIAL HOLDINGS INC27,680$1.69Mshares
ADTNADTRAN HOLDINGS INC200,000$1.67Mcall
APPAPPLOVIN CORP2,555$827Kshares
CYHCOMMUNITY HEALTH SYS INC NEW200,100$598Kcall
VISNVISTANCE NETWORKS INC50,000$260Kcall
PROFIRE ENERGY INCPROFIRE ENERGY INC72,555$184Kshares
CYHCOMMUNITY HEALTH SYS INC NEW5,555$16.6Kshares
VISNVISTANCE NETWORKS INC2,555$13.3Kshares

How Q1 2025 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

FilingRoleAmendmentFiledAcceptedIngested
13F-HR 0001941040-25-000290 base2025-05-13acceptance time not in the bulk data set