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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 $188,225,815 across 49 holdings for the quarter ended 2025-06-30, in a 13F-HR filed 2025-08-11. Its ten largest share positions make up 87.72% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001941040-25-000474

Period
2025-06-30
Reported value
$188M
Holdings
49
Top 10 weight
87.72%
New
3
Sold out
11

Largest buys vs the previous quarter

SecurityShares changeApprox. value
CRTOadded+269,204$6.45M
GDOTadded+261,555$2.82M
RVSBadded+304,741$1.68M
BFHnew+15,380$879K
LYFTnew+42,555$671K

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
CTLPexited-2,467,534-$19.4M
MR COOPER GROUP INCreduced-41,250-$6.15M
BREAD FINANCIAL HOLDINGS INexited-27,680-$1.39M
TPCreduced-22,000-$1.03M
FFICexited-77,555-$985K

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, Q2 2025

Share positions as resolved from 13F-HR 0001941040-25-000474, largest first. % of portfolio is the value over $171,352,331, 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; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 363,004 shares; 2024Q4: 363,004 shares; 2025Q1: 337,304 shares; 2025Q2: 296,054 shares 296,054$44.2M25.78%-41,250
POTBELLY CORPPOTBELLY CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 2,980,564 shares; 2024Q4: 2,980,564 shares; 2025Q1: 2,980,564 shares; 2025Q2: 2,980,564 shares 2,980,564$36.5M21.31%0
EQTEQT CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 536,693 shares; 2024Q4: 536,693 shares; 2025Q1: 536,693 shares; 2025Q2: 536,693 shares 536,693$31.3M18.27%0Timeline
CRTOCRITEO S AQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 67,555 shares; 2025Q1: 266,498 shares; 2025Q2: 535,702 shares 535,702$12.8M7.49%+269,204Timeline
RVSBRIVERVIEW BANCORP INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1,060,600 shares; 2024Q4: 1,286,422 shares; 2025Q1: 1,633,034 shares; 2025Q2: 1,937,775 shares 1,937,775$10.7M6.22%+304,741Timeline
GDOTGREEN DOT CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 77,555 shares; 2025Q2: 339,110 shares 339,110$3.66M2.13%+261,555Timeline
ADTNADTRAN HOLDINGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 343,110 shares; 2024Q4: 343,110 shares; 2025Q1: 435,110 shares; 2025Q2: 343,110 shares 343,110$3.08M1.8%-92,000Timeline
BKDBROOKDALE SR LIVING INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 160,110 shares; 2024Q4: 160,110 shares; 2025Q1: 410,110 shares; 2025Q2: 410,110 shares 410,110$2.85M1.67%0Timeline
CNXCCONCENTRIX CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 34,310 shares; 2024Q4: 64,480 shares; 2025Q1: 64,480 shares; 2025Q2: 50,480 shares 50,480$2.67M1.56%-14,000Timeline
KBRKBR INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 50,710 shares; 2024Q4: 50,710 shares; 2025Q1: 53,710 shares; 2025Q2: 53,710 shares 53,710$2.57M1.5%0Timeline
TPCTUTOR PERINI CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 91,680 shares; 2024Q4: 66,680 shares; 2025Q1: 66,680 shares; 2025Q2: 44,680 shares 44,680$2.09M1.22%-22,000Timeline
ECVTECOVYST INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 227,610 shares; 2024Q4: 228,810 shares; 2025Q1: 228,810 shares; 2025Q2: 228,810 shares 228,810$1.88M1.1%0Timeline
EXEEXPAND ENERGY CORPORATIONQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 255 shares; 2024Q4: 19,555 shares; 2025Q1: 19,555 shares; 2025Q2: 15,555 shares 15,555$1.82M1.06%-4,000Timeline
MTCHMATCH GROUP INC NEWQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 57,230 shares; 2024Q4: 57,230 shares; 2025Q1: 57,230 shares; 2025Q2: 56,680 shares 56,680$1.75M1.02%-550Timeline
DHCDIVERSIFIED HEALTHCARE TRQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 456,110 shares; 2024Q4: 456,110 shares; 2025Q1: 456,110 shares; 2025Q2: 456,110 shares 456,110$1.63M0.95%0Timeline
CLFDCLEARFIELD INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 57,510 shares; 2024Q4: 41,510 shares; 2025Q1: 40,510 shares; 2025Q2: 34,510 shares 34,510$1.5M0.87%-6,000Timeline
RRCRANGE RES CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 29,555 shares; 2024Q4: 29,555 shares; 2025Q1: 29,555 shares; 2025Q2: 29,555 shares 29,555$1.2M0.7%0Timeline
HOPEHOPE BANCORP INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 99,555 shares; 2024Q4: 99,555 shares; 2025Q1: 99,555 shares; 2025Q2: 99,555 shares 99,555$1.07M0.62%0Timeline
BFHBREAD FINANCIAL HOLDINGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 20,680 shares; 2024Q4: 27,680 shares; 2025Q1: not reported; 2025Q2: 15,380 shares 15,380$879K0.51%newTimeline
WNCWABASH NATL CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 55,555 shares; 2025Q2: 77,555 shares 77,555$824K0.48%+22,000Timeline
SEBSEABOARD CORP DELQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 286 shares; 2025Q2: 286 shares 286$818K0.48%0Timeline
HOSHORNBECK OFFSHORE SERVICES IQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 113,450 shares; 2024Q4: 124,450 shares; 2025Q1: 124,450 shares; 2025Q2: 124,450 shares 124,450$777K0.45%0Timeline
PLPCPREFORMED LINE PRODS COQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 4,555 shares; 2025Q1: 4,555 shares; 2025Q2: 4,555 shares 4,555$728K0.42%0Timeline
LYFTLYFT INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 42,555 shares 42,555$671K0.39%newTimeline
OSKOSHKOSH CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 5,555 shares; 2024Q4: 5,750 shares; 2025Q1: 5,750 shares; 2025Q2: 5,750 shares 5,750$653K0.38%0Timeline
PLABPHOTRONICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 23,330 shares; 2024Q4: 23,330 shares; 2025Q1: 23,330 shares; 2025Q2: 34,330 shares 34,330$646K0.38%+11,000Timeline
OISOIL STS INTL INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 23,555 shares; 2025Q1: 111,555 shares; 2025Q2: 111,555 shares 111,555$598K0.35%0Timeline
ARHSARHAUS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 59,310 shares; 2024Q4: 59,310 shares; 2025Q1: 59,310 shares; 2025Q2: 59,310 shares 59,310$514K0.3%0Timeline
FLRFLUOR CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 432,058 shares; 2024Q4: 122,555 shares; 2025Q1: 6,555 shares; 2025Q2: 6,555 shares 6,555$336K0.2%0Timeline
DXCDXC TECHNOLOGY COQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 13,555 shares; 2024Q4: 13,555 shares; 2025Q1: 13,555 shares; 2025Q2: 13,555 shares 13,555$207K0.12%0Timeline
DHXDHI GROUP INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 44,555 shares; 2025Q2: 44,555 shares 44,555$132K0.08%0Timeline
GIFIGULF ISLAND FABRICATION INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 155,555 shares; 2024Q4: 155,555 shares; 2025Q1: 99,555 shares; 2025Q2: 17,555 shares 17,555$117K0.07%-82,000Timeline
SCYXSCYNEXIS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 75,555 shares; 2024Q4: 75,555 shares; 2025Q1: 75,555 shares; 2025Q2: 75,555 shares 75,555$51K0.03%0Timeline
OSURORASURE TECHNOLOGIES INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 11,555 shares 11,555$34.7K0.02%newTimeline
CTMXCYTOMX THERAPEUTICS INC.Quarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 12,555 shares; 2024Q4: 12,555 shares; 2025Q1: 12,555 shares; 2025Q2: 12,555 shares 12,555$28.5K0.02%0Timeline
NNBRNN INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 222,555 shares; 2025Q2: 13,555 shares 13,555$28.5K0.02%-209,000Timeline
WTIW & T OFFSHORE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 13,555 shares; 2024Q4: 13,555 shares; 2025Q1: 13,555 shares; 2025Q2: 13,555 shares 13,555$22.4K0.01%0Timeline
OLPXOLAPLEX HLDGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 12,555 shares; 2024Q4: 12,555 shares; 2025Q1: 12,555 shares; 2025Q2: 12,555 shares 12,555$17.6K0.01%0Timeline
BRYBerry CorpQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 5,555 shares; 2025Q2: 5,555 shares 5,555$15.4K0.01%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
GEVGE VERNOVA INC COMput9,200$4.87M0
QQQINVESCO QQQ TR COMput6,100$3.37M0
NVDANVIDIA CORPORATION COMput10,800$1.71M0
CEGCONSTELLATION ENERGY CORP Stockput5,100$1.65M0
EXEEXPAND ENERGY CORPORATION Stockcall14,000$1.64M0
VRTVERTIV HOLDINGS CO Stockput9,200$1.18M0
AVGOBROADCOM INC COMput3,200$882K0
ANETARISTA NETWORKS INC COMput5,600$573K0
ETNEATON CORP PLC COMput1,600$571K0
BRYBerry Corp Common Stockcall160,000$443K0

Sold out in Q2 2025

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

SecurityShares beforeValue beforeType
CTLPCANTALOUPE INC2,467,534$19.4Mshares
BREAD FINANCIAL HOLDINGS INBREAD FINANCIAL HOLDINGS IN27,680$1.39Mshares
FFICFLUSHING FINL CORP77,555$985Kshares
SUPERIOR INDS INTL INCSUPERIOR INDS INTL INC333,555$710Kshares
MTRXMATRIX SVC CO44,555$554Kshares
ARRYARRAY TECHNOLOGIES INC19,555$95.2Kshares
UFIUNIFI INC17,555$84.4Kshares
FFWMFIRST FNDTN INC15,555$80.7Kshares
NAGENIAGEN BIOSCIENCE INC11,555$79.7Kshares
BIG 5 SPORTING GOODS CORPBIG 5 SPORTING GOODS CORP67,555$65.3Kshares
Enzo Biochem IncEnzo Biochem Inc88,555$32.8Kshares

How Q2 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 0001941040-25-000474 base2025-08-11acceptance time not in the bulk data set