Roubaix Capital, LLC — 13F Holdings & Portfolio
CIK 1769700 · latest 13F-HR filed 2026-05-06
Roubaix Capital, LLC manages $214.3M in 13F-reported U.S. long-equity assets across 43 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are YSS (3.96%), SARO (3.55%), PKE (3.51%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 21 new positions, exited 24, added to 12, and trimmed 10.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
$214.3M
Long-equity book
43
Distinct positions
2026-03-31
Filed 2026-05-06
+21 / −24 / ↑12 / ↓10
vs 2025-12-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- MESA LABS INC$2.0M +47.2%
- ALPHA TEKNOVA INC$1.6M +43.4%
- CELLEBRITE DI LTD$1.6M +59.1%
- SHOULDER INNOVATIONS INC$1.5M +64.5%
- STEVANATO GROUP S P A$1.4M +34.4%
Top Trims
- NPK INTERNATIONAL INC-$2.9M -43.0%
- RALLIANT CORP-$2.4M -27.2%
- AGILYSYS INC-$1.8M -24.9%
- CCC INTELLIGENT SOLUTIONS HL-$1.8M -28.5%
- NLIGHT INC-$1.7M -32.9%
New Positions
- YORK SPACE SYSTEMS INC$8.5M
- VISHAY PRECISION GROUP INC$7.0M
- REPLIGEN CORP$6.4M
- SPORTRADAR GROUP AG$5.6M
- FORGENT POWER SOLUTIONS INC$5.4M
Exited Positions
- JANUS INTERNATIONAL GROUP IN$6.5M
- MODINE MFG CO$6.2M
- AZENTA INC$6.1M
- XPEL INC$5.8M
- BIRKENSTOCK HOLDING PLC$5.3M
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | YORK SPACE SYSTEMS INC | YSS | 987084100 | $8.5M | 3.96% | 382,906 | SH |
| 2 | STANDARDAERO INC | SARO | 85423L103 | $7.6M | 3.55% | 294,397 | SH |
| 3 | PARK AEROSPACE CORP | PKE | 70014A104 | $7.5M | 3.51% | 274,815 | SH |
| 4 | SENSIENT TECHNOLOGIES CORP | SXT | 81725T100 | $7.2M | 3.36% | 83,186 | SH |
| 5 | REGAL REXNORD CORPORATION | RRX | 758750103 | $7.1M | 3.30% | 37,739 | SH |
| 6 | VISHAY PRECISION GROUP INC | VPG | 92835K103 | $7.0M | 3.26% | 160,961 | SH |
| 7 | XOMETRY INC | XMTR | 98423F109 | $6.8M | 3.16% | 165,931 | SH |
| 8 | RALLIANT CORP | RAL | 750940108 | $6.4M | 3.00% | 154,619 | SH |
| 9 | REPLIGEN CORP | RGEN | 759916109 | $6.4M | 3.00% | 54,555 | SH |
| 10 | MESA LABS INC | MLAB | 59064R109 | $6.4M | 2.98% | 72,115 | SH |
| 11 | TRANSCAT INC | TRNS | 893529107 | $6.2M | 2.91% | 84,982 | SH |
| 12 | PDF SOLUTIONS INC | PDFS | 693282105 | $6.0M | 2.78% | 181,937 | SH |
| 13 | REVVITY INC | RVTY | 714046109 | $5.6M | 2.62% | 64,013 | SH |
| 14 | SPORTRADAR GROUP AG | SRAD | H8088L103 | $5.6M | 2.60% | 333,382 | SH |
| 15 | ALPHA TEKNOVA INC | TKNO | 02080L102 | $5.4M | 2.54% | 1,882,355 | SH |
| 16 | FORGENT POWER SOLUTIONS INC | FPS | 34631F102 | $5.4M | 2.53% | 184,863 | SH |
| 17 | AGILYSYS INC | AGYS | 00847J105 | $5.4M | 2.51% | 75,544 | SH |
| 18 | ALLEGRO MICROSYSTEMS INC | ALGM | 01749D105 | $5.4M | 2.50% | 169,993 | SH |
| 19 | STEVANATO GROUP S P A | STVN | T9224W109 | $5.3M | 2.47% | 385,316 | SH |
| 20 | LOAR HOLDINGS INC | LOAR | 53947R105 | $5.3M | 2.47% | 92,379 | SH |
| 21 | ESAB CORPORATION | ESAB | 29605J106 | $5.0M | 2.34% | 51,928 | SH |
| 22 | CASELLA WASTE SYS INC | CWST | 147448104 | $5.0M | 2.32% | 62,772 | SH |
| 23 | WAYSTAR HLDG CORP | WAY | 946784105 | $4.8M | 2.25% | 200,167 | SH |
| 24 | NEOGEN CORP | NEOG | 640491106 | $4.6M | 2.16% | 498,424 | SH |
| 25 | ORTHOPEDIATRICS CORP | KIDS | 68752L100 | $4.6M | 2.15% | 290,047 | SH |
| 26 | JFROG LTD | FROG | M6191J100 | $4.5M | 2.10% | 95,944 | SH |
| 27 | CCC INTELLIGENT SOLUTIONS HL | CCC | 12510Q100 | $4.5M | 2.09% | 744,898 | SH |
| 28 | DORMAN PRODS INC | DORM | 258278100 | $4.5M | 2.09% | 42,811 | SH |
| 29 | CELLEBRITE DI LTD | CLBT | M2197Q107 | $4.2M | 1.95% | 303,215 | SH |
| 30 | PROCORE TECHNOLOGIES INC | PCOR | 74275K108 | $4.1M | 1.94% | 72,754 | SH |
| 31 | NPK INTERNATIONAL INC | NPKI | 651718504 | $3.9M | 1.83% | 269,935 | SH |
| 32 | MAYVILLE ENGR CO INC | MEC | 578605107 | $3.8M | 1.76% | 210,657 | SH |
| 33 | SHOULDER INNOVATIONS INC | SI | 82537J108 | $3.7M | 1.74% | 257,121 | SH |
| 34 | LATHAM GROUP INC | SWIM | 51819L107 | $3.5M | 1.66% | 661,037 | SH |
| 35 | ALBANY INTL CORP | AIN | 012348108 | $3.5M | 1.64% | 67,509 | SH |
| 36 | PROPETRO HLDG CORP | PUMP | 74347M108 | $3.5M | 1.64% | 243,257 | SH |
| 37 | NLIGHT INC | LASR | 65487K100 | $3.5M | 1.63% | 61,389 | SH |
| 38 | SERVICETITAN INC | TTAN | 81764X103 | $3.4M | 1.59% | 53,720 | SH |
| 39 | AMBIQ MICRO INC | AMBQ | 023193105 | $3.2M | 1.49% | 125,821 | SH |
| 40 | FLYWIRE CORPORATION | FLYW | 302492103 | $2.7M | 1.25% | 230,691 | SH |
| 41 | ALKAMI TECHNOLOGY INC | ALKT | 01644J108 | $2.5M | 1.18% | 161,101 | SH |
| 42 | JBT MAREL CORPORATION | JBTM | 477839104 | $2.4M | 1.10% | 18,459 | SH |
| 43 | MOELIS & CO | MC | 60786M105 | $2.3M | 1.09% | 40,967 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-06 | $214.3M | 43 | 0001769700-26-000003 |
| 2025-12-31 | 2026-02-09 | $234.5M | 46 | 0001769700-26-000002 |