Roubaix Capital, LLC
In its 13F for Q2 2025 (holdings as of June 30, 2025, filed August 13, 2025), Roubaix Capital, LLC reported 51 stock positions worth $208.4 million. Its top holding was Tat Technologies (TATT) at 3.4% of the portfolio, followed by Chart Industries (GTLS, 3.3%) and Genius Sports (GENI, 3.3%). Compared with Q1 2025, it opened 23 new positions, sold out of 22, added to 10 and reduced 18. The biggest buy was a new position in Chart Industries (GTLS) and the biggest sale an exit from Anterix (ATEX).
- Most Recent 13F
- Q2 2026
- Location
- DENVER, CO
- CIK
- 0001769700
- Portfolio Value
- $208.4M (Q2 2025)
- SEC Filing
- 0001769700-25-000006 ↗ filed Aug 13, 2025
Holdings Value
Holdings 51 stocks · $208.4M
| TATT Tat Technologies Ltd. | 3.44% | 234,664 | $7.2M | Add +23.1% |
| GTLS Chart Industries Inc. | 3.33% | 42,136 | $6.9M | New |
| GENI Genius Sports Ltd. | 3.29% | 659,590 | $6.9M | Add +10.0% |
| NPKI NPK International Inc. | 3.28% | 803,366 | $6.8M | Reduce -12.5% |
| SARO Standardaero Inc. | 3.14% | 206,912 | $6.5M | Reduce -16.5% |
| AGYS Agilysys Inc. | 3.12% | 56,708 | $6.5M | Reduce -16.3% |
| SXT Sensient Technologies Corp. | 3.10% | 65,619 | $6.5M | New |
| BELFB Bel Fuse Inc. Class B | 3.03% | 64,612 | $6.3M | Reduce -8.1% |
| PKE Park Aerospace Corp. | 3.03% | 426,786 | $6.3M | Reduce -8.7% |
| MGNI Magnite Inc. | 3.02% | 260,735 | $6.3M | New |
| TRS Trimas Corp. | 2.92% | 212,822 | $6.1M | Add +0.6% |
| LQDT Liquidity Services Inc. | 2.77% | 244,550 | $5.8M | Add +152.6% |
| NOVT Novanta Inc. | 2.75% | 44,401 | $5.7M | Add +72.5% |
| MKSI MKS Inc. | 2.55% | 53,526 | $5.3M | Add +69.8% |
| ATI Ati Inc. | 2.51% | 60,633 | $5.2M | Reduce -20.6% |
| FND Floor & Decor Holdings Inc. Class A | 2.28% | 62,485 | $4.7M | New |
| RDNT Radnet Inc. | 2.24% | 81,984 | $4.7M | Reduce -4.5% |
| ORA Ormat Technologies Inc. | 2.18% | 54,355 | $4.6M | Reduce -23.5% |
| OLED Universal Display Corp. | 2.07% | 27,920 | $4.3M | New |
| IRMD Iradimed Corp. | 2.05% | 71,497 | $4.3M | Add +48.6% |
| LSCC Lattice Semiconductor Corp. | 2.03% | 86,370 | $4.2M | New |
| DCO Ducommun Inc. | 2.03% | 51,104 | $4.2M | New |
| UMBF Umb Financial Corp. | 1.98% | 39,194 | $4.1M | New |
| LASR Nlight Inc. | 1.92% | 203,274 | $4.0M | New |
| AEIS Advanced Energy Industries | 1.86% | 29,179 | $3.9M | New |
| MIR Mirion Technologies Inc. | 1.72% | 166,347 | $3.6M | Reduce -56.1% |
| JBI Janus International Group Inc. | 1.66% | 424,804 | $3.5M | Reduce -24.5% |
| KRMN Karman Holdings Inc. | 1.66% | 68,480 | $3.4M | Reduce -3.5% |
| KNF Knife River Corp. | 1.65% | 42,090 | $3.4M | Add +26.5% |
| CERT Certara Inc. | 1.59% | 283,208 | $3.3M | Add +5.3% |
| RGEN Repligen Corp. | 1.58% | 26,459 | $3.3M | Reduce -24.1% |
| BWXT BWX Technologies Inc. | 1.56% | 22,581 | $3.3M | New |
| KRNT Kornit Digital Ltd. | 1.50% | 156,730 | $3.1M | New |
| RRX Regal Rexnord Corp. | 1.49% | 21,453 | $3.1M | Reduce -33.0% |
| ACVA Acv Auctions Inc. Class A | 1.41% | 181,589 | $2.9M | Reduce -18.3% |
| AAON Aaon Inc. | 1.39% | 39,250 | $2.9M | New |
| CGNX Cognex Corp. | 1.39% | 91,105 | $2.9M | Reduce -9.4% |
| REAL The Realreal Inc. filed as THE REALREAL INC | 1.37% | 595,449 | $2.9M | New |
| CLBT Cellebrite Di Ltd. | 1.35% | 175,284 | $2.8M | New |
| SITM Sitime Corp. | 1.29% | 12,618 | $2.7M | Reduce -35.1% |
| SWIM Latham Group Inc. | 1.24% | 405,529 | $2.6M | Add +23.5% |
| XMTR Xometry Inc. Class A | 1.12% | 69,366 | $2.3M | Reduce -15.5% |
| RXO Rxo Inc. | 1.12% | 148,728 | $2.3M | New |
| SG Sweetgreen Inc. Class A | 1.12% | 156,619 | $2.3M | New |
| VRNS Varonis Systems Inc. | 1.11% | 45,458 | $2.3M | New |
| BIRK Birkenstock Holding PLC | 1.06% | 45,009 | $2.2M | Reduce -45.4% |
| CFLT Confluent Inc. Class A | 1.06% | 88,379 | $2.2M | New |
| GHM Graham Corp. | 1.05% | 44,196 | $2.2M | New |
| TKNO Alpha Teknova Inc. | 1.04% | 439,938 | $2.2M | New |
| GTLB Gitlab Inc. Class A | 0.79% | 36,566 | $1.6M | New |
| MEC Mayville Engineering Co. Inc. | 0.77% | 101,138 | $1.6M | New |
Portfolio Sells Q1 2025 → Q2 2025
| ATEX Anterix Inc. | Sold out | 0.00% | −3.08 |
| COLD Americold Realty Trust Inc. | Sold out | 0.00% | −2.89 |
| CCC CCC Intelligent Solutions Ho | Sold out | 0.00% | −2.88 |
| PACK Ranpak Holdings Corp. | Sold out | 0.00% | −2.81 |
| MIDD Middleby Corp. | Sold out | 0.00% | −2.44 |
| HAE Haemonetics Corp. | Sold out | 0.00% | −2.44 |
| AIN Albany Intl Corp. Class A | Sold out | 0.00% | −2.38 |
| TTAN Servicetitan Inc. Class A | Sold out | 0.00% | −2.10 |
| OEC Orion SA | Sold out | 0.00% | −2.06 |
| FLS Flowserve Corp. | Sold out | 0.00% | −1.91 |
| CTLP Cantaloupe Inc. | Sold out | 0.00% | −1.67 |
| INMD Inmode Ltd. | Sold out | 0.00% | −1.65 |
| FRPT Freshpet Inc. | Sold out | 0.00% | −1.64 |
| WEX Wex Inc. | Sold out | 0.00% | −1.63 |
| FROG Jfrog Ltd. | Sold out | 0.00% | −1.62 |
| ALIT Alight Inc. Class A | Sold out | 0.00% | −1.61 |
| NEOG Neogen Corp. | Sold out | 0.00% | −1.59 |
| MIR Mirion Technologies Inc. | Reduce -56.1% | 1.72% | −1.15 |
| TLN Talen Energy Corp. | Sold out | 0.00% | −1.11 |
| DORM Dorman Products Inc. | Sold out | 0.00% | −1.11 |
| PATK Patrick Industries Inc. | Sold out | 0.00% | −1.06 |
| AIP Arteris Inc. | Sold out | 0.00% | −1.01 |
| MTLS Materialise NV-ADR | Sold out | 0.00% | −1.01 |
| BIRK Birkenstock Holding PLC | Reduce -45.4% | 1.06% | −0.90 |
| RGEN Repligen Corp. | Reduce -24.1% | 1.58% | −0.73 |
| JBI Janus International Group Inc. | Reduce -24.5% | 1.66% | −0.45 |
| ORA Ormat Technologies Inc. | Reduce -23.5% | 2.18% | −0.44 |
| RRX Regal Rexnord Corp. | Reduce -33.0% | 1.49% | −0.41 |
| SARO Standardaero Inc. | Reduce -16.5% | 3.14% | −0.29 |
| SITM Sitime Corp. | Reduce -35.1% | 1.29% | −0.26 |
| PKE Park Aerospace Corp. | Reduce -8.7% | 3.03% | −0.25 |
| ACVA Acv Auctions Inc. Class A | Reduce -18.3% | 1.41% | −0.22 |
| CGNX Cognex Corp. | Reduce -9.4% | 1.39% | −0.18 |
| RDNT Radnet Inc. | Reduce -4.5% | 2.24% | +0.02 |
| XMTR Xometry Inc. Class A | Reduce -15.5% | 1.12% | +0.06 |
| BELFB Bel Fuse Inc. Class B | Reduce -8.1% | 3.03% | +0.29 |
| KRMN Karman Holdings Inc. | Reduce -3.5% | 1.66% | +0.42 |
| ATI Ati Inc. | Reduce -20.6% | 2.51% | +0.44 |
| NPKI NPK International Inc. | Reduce -12.5% | 3.28% | +0.50 |
| AGYS Agilysys Inc. | Reduce -16.3% | 3.12% | +0.56 |
Portfolio Buys Q1 2025 → Q2 2025
| GTLS Chart Industries Inc. | New | 3.33% | +3.33 |
| SXT Sensient Technologies Corp. | New | 3.10% | +3.10 |
| MGNI Magnite Inc. | New | 3.02% | +3.02 |
| FND Floor & Decor Holdings Inc. Class A | New | 2.28% | +2.28 |
| OLED Universal Display Corp. | New | 2.07% | +2.07 |
| LSCC Lattice Semiconductor Corp. | New | 2.03% | +2.03 |
| DCO Ducommun Inc. | New | 2.03% | +2.03 |
| UMBF Umb Financial Corp. | New | 1.98% | +1.98 |
| LASR Nlight Inc. | New | 1.92% | +1.92 |
| AEIS Advanced Energy Industries | New | 1.86% | +1.86 |
| BWXT BWX Technologies Inc. | New | 1.56% | +1.56 |
| KRNT Kornit Digital Ltd. | New | 1.50% | +1.50 |
| AAON Aaon Inc. | New | 1.39% | +1.39 |
| REAL The Realreal Inc. | New | 1.37% | +1.37 |
| CLBT Cellebrite Di Ltd. | New | 1.35% | +1.35 |
| MKSI MKS Inc. | Add +69.8% | 2.55% | +1.24 |
| LQDT Liquidity Services Inc. | Add +152.6% | 2.77% | +1.20 |
| RXO Rxo Inc. | New | 1.12% | +1.12 |
| SG Sweetgreen Inc. Class A | New | 1.12% | +1.12 |
| VRNS Varonis Systems Inc. | New | 1.11% | +1.11 |
| CFLT Confluent Inc. Class A | New | 1.06% | +1.06 |
| GHM Graham Corp. | New | 1.05% | +1.05 |
| TKNO Alpha Teknova Inc. | New | 1.04% | +1.04 |
| NOVT Novanta Inc. | Add +72.5% | 2.75% | +1.03 |
| GTLB Gitlab Inc. Class A | New | 0.79% | +0.79 |
| MEC Mayville Engineering Co. Inc. | New | 0.77% | +0.77 |
| IRMD Iradimed Corp. | Add +48.6% | 2.05% | +0.74 |
| TATT Tat Technologies Ltd. | Add +23.1% | 3.44% | +0.71 |
| TRS Trimas Corp. | Add +0.6% | 2.92% | +0.34 |
| CERT Certara Inc. | Add +5.3% | 1.59% | +0.20 |
| GENI Genius Sports Ltd. | Add +10.0% | 3.29% | +0.17 |
| SWIM Latham Group Inc. | Add +23.5% | 1.24% | +0.14 |
| KNF Knife River Corp. | Add +26.5% | 1.65% | +0.09 |
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 50 | $278.9M | SXT, TKNO, BLFS, AGYS, DORM |
| Q1 2026 | 43 | $214.3M | YSS, SARO, PKE, SXT, RRX |
| Q4 2025 | 46 | $234.5M | RAL, SARO, AGYS, NPKI, TRNS |
| Q3 2025 | 47 | $214.7M | TATT, PKE, GENI, NPKI, LASR |
| Q2 2025 | 51 | $208.4M | TATT, GTLS, GENI, NPKI, SARO |
| Q1 2025 | 50 | $191.9M | SARO, PKE, GENI, ATEX, COLD |
| Q4 2024 | 47 | $208.6M | FTAI, TLN, BELFB, NPKI, PKE |
| Q3 2024 | 47 | $181.5M | TLN, FTAI, BARNES GROUP INC, LSCC, OEC |
| Q2 2024 | 45 | $158.3M | BARNES GROUP INC, FTAI, ATEX, PKE, NPKI |
| Q1 2024Amended | 47 | $158.1M | FTAI, PKE, BARNES GROUP INC, CRS, ATEX |