Q2 2026 13F · SEC CIK 1769700

Roubaix Capital, LLC

Hedge fundFiled 2026-08-10 for Q2 2026. Open the filing ↗ · All SEC filings ↗

Reported 13F value: $278.9M
Reported positions: 50
Top holdings a year, 3 yrs: +29.0%
Assets under management: $298.9M

Roubaix Capital, LLC is a hedge fund that reported 50 positions worth $278.9M in its Q2 2026 13F, filed 2026-08-10. Its largest holdings were Sensient Technologies Corp (SXT, 3.7%), Alpha Teknova Inc (TKNO, 3.2%), Biolife Solutions Inc (BLFS, 3.1%). A portfolio copying its top holdings returned 29.0% a year over the last 3 years, against 22.3% for the S&P 500.

Roubaix Capital, LLC holdings all 50 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.

Roubaix Capital, LLC 13F holdings
Stock	% of 13F value	Q1 2026	Shares	Share change	Reported value
SXTSensient Technologies Corp	3.7%	3.4%	84,299	+1.3%	$10.4M
TKNOAlpha Teknova Inc	3.2%	2.5%	1,579,404	-16.1%	$9.0M
BLFSBiolife Solutions Inc	3.1%	New	309,618	—	$8.7M
AGYSAgilysys Inc	2.9%	2.5%	77,079	+2.0%	$8.1M
DORMDorman Prods Inc	2.7%	2.1%	55,682	+30.1%	$7.6M
RALRalliant Corp	2.7%	3.0%	101,759	-34.2%	$7.5M
STVNStevanato Group S P A	2.6%	2.5%	396,822	+3.0%	$7.2M
ATSAts Corporation	2.5%	New	246,909	—	$7.1M
OMCLOmnicell Com	2.5%	New	167,773	—	$7.0M
VVIPursuit Attractions and Hosp	2.5%	New	122,525	—	$6.9M
FLYWFlywire Corporation	2.3%	1.3%	369,457	+60.2%	$6.5M
PKEPark Aerospace Corp	2.3%	3.5%	168,978	-38.5%	$6.4M
CYRXCryoport Inc	2.3%	New	404,778	—	$6.4M
CWSTCasella Waste Sys Inc	2.2%	2.3%	64,536	+2.8%	$6.3M
TKRTimken Co Com	2.2%	New	42,931	—	$6.2M
NEOGNeogen Corp	2.2%	2.2%	687,112	+37.9%	$6.2M
NAVNNavan Inc	2.2%	New	265,887	—	$6.1M
KIDSOrthopediatrics Corp	2.1%	2.1%	306,564	+5.7%	$5.9M
LKQLkq Corp	2.1%	New	221,780	—	$5.8M
AADXApplied Aerospace & Defense	2.1%	New	256,240	—	$5.8M
JBTJBT Marel Corp	2.1%	1.1%	40,002	+116.7%	$5.8M
AINAlbany Intl Corp	2.1%	1.6%	77,024	+14.1%	$5.7M
CLBTCellebrite Di Ltd	2.0%	1.9%	383,672	+26.5%	$5.6M
MAMAMama Mancinis Holdings Inc	1.9%	New	298,280	—	$5.3M
XMTRXometry, Inc.	1.9%	3.2%	55,034	-66.8%	$5.3M
SWIMLatham Group Inc	1.9%	1.7%	812,601	+22.9%	$5.3M
SIShoulder Innovations Inc	1.9%	1.7%	255,288	-0.7%	$5.2M
BIRKBirkenstock Holding PLC	1.8%	New	119,258	—	$5.1M
LPTHLightpath Technologies Inc	1.8%	New	312,510	—	$5.1M
RRXRegal Rexnord Corporation	1.8%	3.3%	20,636	-45.3%	$4.9M
CELHCelsius Holding Inc.	1.7%	New	164,889	—	$4.8M
HXLHexcel Corp New	1.7%	New	48,200	—	$4.8M
ISSCInnovative Solutions & Suppo	1.7%	New	264,509	—	$4.8M
AMBQAmbiq Micro Inc	1.7%	1.5%	53,257	-57.7%	$4.7M
EPACEnerpac Tool Group Corp	1.7%	New	129,503	—	$4.6M
XPELXpel Inc	1.7%	New	93,575	—	$4.6M
PRLBProto Labs Inc	1.6%	New	55,415	—	$4.5M
ACVAAcv Auctions Inc	1.6%	New	625,761	—	$4.5M
BOOTBoot Barn Hldgs Inc	1.6%	New	27,046	—	$4.4M
LFUSLittelfuse Inc	1.6%	New	9,724	—	$4.4M
ATRAptargroup Inc	1.6%	New	34,847	—	$4.4M
VPGVishay Precision Group Inc	1.6%	3.3%	28,920	-82.0%	$4.3M
REZIResideo Technologies Inc	1.5%	New	134,503	—	$4.2M
WAYWaystar Hldg Corp	1.4%	2.3%	191,234	-4.5%	$3.9M
BWMNBowman Consulting Group Ltd	1.4%	New	133,949	—	$3.9M
DOCNDigitalocean Hldgs Inc	1.4%	New	24,690	—	$3.9M
PDFSPDF Solutions Inc	1.4%	2.8%	53,546	-70.6%	$3.8M
AWIArmstrong World Inds Inc New	1.3%	New	23,203	—	$3.7M
VSHVishay Intertechnology Inc	1.1%	New	58,199	—	$3.1M
CSWCsw Industrials Inc	1.1%	New	11,012	—	$3.1M

What Roubaix Capital, LLC bought and sold in Q2 2026, against Q1 2026.

New positions

BLFS Biolife Solutions Inc3.1% of 13F
ATS Ats Corporation2.5% of 13F
OMCL Omnicell Com2.5% of 13F
VVI Pursuit Attractions and Hosp2.5% of 13F
CYRX Cryoport Inc2.3% of 13F
TKR Timken Co Com2.2% of 13F
NAVN Navan Inc2.2% of 13F
LKQ Lkq Corp2.1% of 13F

Added to

Reduced

VPG Vishay Precision Group Inc-82.0% shares
PDFS PDF Solutions Inc-70.6% shares
XMTR Xometry, Inc.-66.8% shares
AMBQ Ambiq Micro Inc-57.7% shares
RRX Regal Rexnord Corporation-45.3% shares
PKE Park Aerospace Corp-38.5% shares
RAL Ralliant Corp-34.2% shares
TKNO Alpha Teknova Inc-16.1% shares

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: +21.6% /yr; S&P 500 +11.7%
3 years: +29.0% /yr; S&P 500 +22.3%
5 years: +14.2% /yr; S&P 500 +10.6%

A portfolio of the filer's 20 largest 13F positions, weighted by value, bought the trading day after each 13F was filed and held until the next one was: what copying this filer could have earned. 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
Quarter	13F value	Positions
Q2 2026	$278.9M	50
Q1 2026	$214.3M	43
Q4 2025	$234.5M	46
Q3 2025	$214.7M	47
Q2 2025	$208.4M	51
Q1 2025	$191.9M	50
Q4 2024	$208.6M	47
Q3 2024	$181.5M	47
Q2 2024	$158.3M	45
Q1 2024	$158.1M	47
Q2 2023	$136.2M	40
Q1 2023	$131.1M	43

Questions about Roubaix Capital, LLC's portfolio

What stocks does Roubaix Capital, LLC own?

Roubaix Capital, LLC's latest 13F, for Q2 2026 and filed Aug 10, 2026, lists 50 positions worth $278.9M. The largest are Sensient Technologies Corp (SXT) at 3.7%, Alpha Teknova Inc (TKNO) at 3.2%, Biolife Solutions Inc (BLFS) at 3.1%, Agilysys Inc (AGYS) at 2.9% and Dorman Prods Inc (DORM) at 2.7%.

What did Roubaix Capital, LLC buy last quarter?

In Q2 2026, Roubaix Capital, LLC added a new position in Biolife Solutions Inc (BLFS), a new position in Ats Corporation (ATS), a new position in Omnicell Com (OMCL), a new position in Pursuit Attractions and Hosp (VVI), a new position in Cryoport Inc (CYRX), JBT Marel Corp (JBT) (+116.7% shares), Flywire Corporation (FLYW) (+60.2% shares) and Neogen Corp (NEOG) (+37.9% shares), compared with its Q1 2026 filing.

What did Roubaix Capital, LLC sell last quarter?

In Q2 2026, Roubaix Capital, LLC sold all of York Space Systems Inc (YSS), sold all of Standardaero Inc (SARO), sold all of Repligen Corp (RGEN), sold all of Mesa Laboratories, Inc. (MLAB), sold all of Transcat Inc (TRNS), Vishay Precision Group Inc (VPG) (-82.0% shares), PDF Solutions Inc (PDFS) (-70.6% shares) and Xometry, Inc. (XMTR) (-66.8% shares), compared with its Q1 2026 filing.

How has Roubaix Capital, LLC's portfolio performed?

A portfolio copying Roubaix Capital, LLC's 20 largest 13F holdings each quarter, from the day each filing was public, returned +29.0% a year over the last 3 years, against +22.3% for the S&P 500. Over 1 year: +21.6% against +11.7%. Over 5 years: +14.2% a year against +10.6%.

When is Roubaix Capital, LLC's next 13F filing due?

13F filings are due 45 days after each quarter ends. Roubaix Capital, 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 Roubaix Capital, LLC manage?

Roubaix Capital, LLC reported $298.9M of regulatory assets under management on its latest SEC Form ADV. Its 13F, which covers only US-listed stocks and options, totals $278.9M.