Skip to content
Disclosery

Roubaix Capital, LLC

Follow

13F filer, CIK 1769700, DENVER, CO

Roubaix Capital, LLC reported $234,528,324 across 46 holdings for the quarter ended 2025-12-31, in a 13F-HR filed 2026-02-09. Its ten largest share positions make up 29.6% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001769700-26-000002

Period
2025-12-31
Reported value
$235M
Holdings
46
Top 10 weight
29.6%
New
21
Sold out
22

Largest buys vs the previous quarter

SecurityShares changeApprox. value
XMTRnew+100,873$6M
RVTYnew+61,105$5.91M
XPELnew+116,949$5.84M
AZTAadded+162,025$5.39M
BIRKnew+130,625$5.34M

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
TATTexited-250,141-$11M
ATSexited-223,532-$5.86M
JHXexited-291,314-$5.6M
SKYexited-62,643-$4.78M
WAYexited-118,092-$4.48M

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, Q4 2025

Share positions as resolved from 13F-HR 0001769700-26-000002, largest first. % of portfolio is the value over $234,528,324, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
RALRALLIANT CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 164,471 shares; 2025Q4: 173,580 shares 173,580$8.84M3.77%+9,109Timeline
SAROSTANDARDAERO INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 168,366 shares; 2025Q1: 247,685 shares; 2025Q2: 206,912 shares; 2025Q3: 238,559 shares; 2025Q4: 292,354 shares 292,354$8.38M3.58%+53,795Timeline
AGYSAGILYSYS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 67,742 shares; 2025Q2: 56,708 shares; 2025Q3: 56,949 shares; 2025Q4: 60,243 shares 60,243$7.16M3.05%+3,294Timeline
NPKINPK INTERNATIONAL INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 617,079 shares; 2024Q4: 887,403 shares; 2025Q1: 917,775 shares; 2025Q2: 803,366 shares; 2025Q3: 742,697 shares; 2025Q4: 575,348 shares 575,348$6.86M2.92%-167,349Timeline
TRNSTRANSCAT INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 31,538 shares; 2025Q4: 116,111 shares 116,111$6.59M2.81%+84,573Timeline
JBIJANUS INTERNATIONAL GROUP INQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 562,969 shares; 2025Q2: 424,804 shares; 2025Q3: 476,973 shares; 2025Q4: 993,145 shares 993,145$6.5M2.77%+516,172Timeline
PKEPARK AEROSPACE CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 386,250 shares; 2024Q4: 455,797 shares; 2025Q1: 467,484 shares; 2025Q2: 426,786 shares; 2025Q3: 454,642 shares; 2025Q4: 299,962 shares 299,962$6.4M2.73%-154,680Timeline
PDFSPDF SOLUTIONS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 206,348 shares; 2025Q4: 220,022 shares 220,022$6.28M2.68%+13,674Timeline
CCCCCC INTELLIGENT SOLUTIONS HLQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 611,801 shares; 2025Q2: not reported; 2025Q3: 253,793 shares; 2025Q4: 786,127 shares 786,127$6.25M2.66%+532,334Timeline
MODMODINE MFG COQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 44,342 shares; 2025Q4: 46,196 shares 46,196$6.17M2.63%+1,854Timeline
AZTAAZENTA INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 85,651 shares; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 21,574 shares; 2025Q4: 183,599 shares 183,599$6.11M2.6%+162,025Timeline
RRXREGAL REXNORD CORPORATIONQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 14,054 shares; 2024Q4: 31,345 shares; 2025Q1: 32,034 shares; 2025Q2: 21,453 shares; 2025Q3: 36,523 shares; 2025Q4: 42,836 shares 42,836$6.01M2.56%+6,313Timeline
XMTRXOMETRY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 82,054 shares; 2025Q2: 69,366 shares; 2025Q3: not reported; 2025Q4: 100,873 shares 100,873$6M2.56%newTimeline
SXTSENSIENT TECHNOLOGIES CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 65,619 shares; 2025Q3: 66,139 shares; 2025Q4: 63,032 shares 63,032$5.92M2.53%-3,107Timeline
RVTYREVVITY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 61,105 shares 61,105$5.91M2.52%newTimeline
XPELXPEL INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 116,949 shares 116,949$5.84M2.49%newTimeline
BIRKBIRKENSTOCK HOLDING PLCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 91,370 shares; 2024Q4: 88,815 shares; 2025Q1: 82,353 shares; 2025Q2: 45,009 shares; 2025Q3: not reported; 2025Q4: 130,625 shares 130,625$5.34M2.28%newTimeline
AIRAAR CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 63,009 shares 63,009$5.22M2.22%newTimeline
LASRNLIGHT INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 203,274 shares; 2025Q3: 244,114 shares; 2025Q4: 139,048 shares 139,048$5.22M2.22%-105,066Timeline
GENIGENIUS SPORTS LIMITEDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 599,485 shares; 2025Q2: 659,590 shares; 2025Q3: 698,569 shares; 2025Q4: 464,560 shares 464,560$5.12M2.18%-234,009Timeline
NCNONCINO INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 199,020 shares 199,020$5.1M2.18%newTimeline
OMCLOMNICELL COMQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 42,461 shares; 2024Q4: 88,650 shares; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 76,383 shares; 2025Q4: 111,815 shares 111,815$5.07M2.16%+35,432Timeline
FULFULLER H B COQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 83,821 shares 83,821$4.98M2.13%newTimeline
CERTCERTARA INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 269,071 shares; 2025Q2: 283,208 shares; 2025Q3: 519,776 shares; 2025Q4: 563,064 shares 563,064$4.96M2.12%+43,288Timeline
SITMSITIME CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 11,587 shares; 2024Q4: not reported; 2025Q1: 19,442 shares; 2025Q2: 12,618 shares; 2025Q3: not reported; 2025Q4: 14,036 shares 14,036$4.96M2.11%newTimeline
LFUSLITTELFUSE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 19,442 shares 19,442$4.92M2.1%newTimeline
ORAORMAT TECHNOLOGIES INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 71,082 shares; 2025Q2: 54,355 shares; 2025Q3: 62,055 shares; 2025Q4: 43,598 shares 43,598$4.82M2.05%-18,457Timeline
NXTNEXTPOWER INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 54,513 shares 54,513$4.75M2.02%newTimeline
EVLVEVOLV TECHNOLOGIES HLDNGS INQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 626,414 shares 626,414$4.49M1.91%newTimeline
KRMNKARMAN HLDGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 70,968 shares; 2025Q2: 68,480 shares; 2025Q3: not reported; 2025Q4: 61,118 shares 61,118$4.47M1.91%newTimeline
SWIMLATHAM GROUP INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 761,541 shares; 2024Q4: 741,637 shares; 2025Q1: 328,455 shares; 2025Q2: 405,529 shares; 2025Q3: 474,743 shares; 2025Q4: 684,028 shares 684,028$4.34M1.85%+209,285Timeline
MLABMESA LABS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 76,657 shares; 2025Q4: 55,189 shares 55,189$4.33M1.85%-21,468Timeline
LTHLIFE TIME GROUP HOLDINGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 162,150 shares 162,150$4.31M1.84%newTimeline
ATIATI INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 76,325 shares; 2025Q2: 60,633 shares; 2025Q3: 46,543 shares; 2025Q4: 37,284 shares 37,284$4.28M1.82%-9,259Timeline
ITRIITRON INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 45,141 shares 45,141$4.19M1.79%newTimeline
ATRAPTARGROUP INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 34,317 shares 34,317$4.19M1.78%newTimeline
KIDSORTHOPEDIATRICS CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 234,323 shares 234,323$4.16M1.77%newTimeline
STVNSTEVANATO GROUP S P AQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 195,973 shares 195,973$3.94M1.68%newTimeline
PARPAR TECHNOLOGY CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 87,464 shares; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 106,461 shares 106,461$3.86M1.65%newTimeline
TKNOALPHA TEKNOVA INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 416,416 shares; 2024Q4: 204,709 shares; 2025Q1: not reported; 2025Q2: 439,938 shares; 2025Q3: 833,819 shares; 2025Q4: 998,532 shares 998,532$3.79M1.62%+164,713Timeline
AAOIAPPLIED OPTOELECTRONICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 108,275 shares 108,275$3.77M1.61%newTimeline
VERXVERTEX INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 184,446 shares 184,446$3.68M1.57%newTimeline
PCORPROCORE TECHNOLOGIES INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 44,495 shares; 2025Q4: 47,067 shares 47,067$3.42M1.46%+2,572Timeline
MECMAYVILLE ENGR CO INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 101,138 shares; 2025Q3: 212,688 shares; 2025Q4: 146,297 shares 146,297$2.74M1.17%-66,391Timeline
CLBTCELLEBRITE DI LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 175,284 shares; 2025Q3: 187,121 shares; 2025Q4: 145,679 shares 145,679$2.63M1.12%-41,442Timeline
SISHOULDER INNOVATIONS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 158,816 shares 158,816$2.27M0.97%newTimeline

Sold out in Q4 2025

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

SecurityShares beforeValue beforeType
TATTTAT TECHNOLOGIES LTD250,141$11Mshares
ATSATS CORPORATION223,532$5.86Mshares
JHXJAMES HARDIE INDS PLC291,314$5.6Mshares
SKYCHAMPION HOMES INC62,643$4.78Mshares
WAYWAYSTAR HLDG CORP118,092$4.48Mshares
AEISADVANCED ENERGY INDS25,857$4.4Mshares
MKSIMKS INC.33,588$4.16Mshares
APPNAPPIAN CORP133,512$4.08Mshares
OLEDUNIVERSAL DISPLAY CORP26,963$3.87Mshares
AXGNAXOGEN INC216,861$3.87Mshares
GHMGRAHAM CORP69,364$3.81Mshares
QCRHQCR HLDGS INC48,618$3.68Mshares
RDNTRADNET INC46,439$3.54Mshares
THRYTHRYV HLDGS INC281,454$3.39Mshares
SAIASAIA INC10,836$3.24Mshares
KNFKNIFE RIVER CORP37,787$2.9Mshares
HLLYHOLLEY INC774,304$2.43Mshares
AIPARTERIS INC233,726$2.36Mshares
MTLSMATERIALISE NV423,016$2.36Mshares
BIOBIO RAD LABS INC8,112$2.27Mshares
PUBMPUBMATIC INC271,335$2.25Mshares
PATHUIPATH INC161,619$2.16Mshares

How Q4 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 0001769700-26-000002 base2026-02-09acceptance time not in the bulk data set