4D Advisors, LLC
In its 13F for Q4 2025 (holdings as of December 31, 2025, filed February 17, 2026), 4D Advisors, LLC reported 37 stock positions worth $182.5 million. Its top holding was Turning Point Brands (TPB) at 6.8% of the portfolio, followed by Casella Waste Systems Class A (CWST, 5.1%) and Federal Signal (FSS, 4.2%). Compared with Q3 2025, it opened 19 new positions, sold out of 15, added to 2 and reduced 13. The biggest buy was a new position in Casella Waste Systems Class A (CWST) and the biggest sale an exit from U.S. Physical Therapy (USPH).
- Most Recent 13F
- Q2 2026
- Location
- REDONDO BEACH, CA
- CIK
- 0001938268
- Portfolio Value
- $182.5M (Q4 2025)
- SEC Filing
- 0001938268-26-000002 ↗ filed Feb 17, 2026
Holdings Value
Holdings 37 stocks · $182.5M
| TPB Turning Point Brands Inc. | 6.83% | 115,000 | $12.5M | Add +15.0% |
| CWST Casella Waste Systems Inc. Class A | 5.10% | 95,000 | $9.3M | New |
| FSS Federal Signal Corp. | 4.17% | 70,000 | $7.6M | Add +27.3% |
| AXON Axon Enterprise Inc. | 3.89% | 12,500 | $7.1M | No change |
| FICO Fair Isaac Corp. | 3.71% | 4,000 | $6.8M | Reduce -20.0% |
| APEI American Public Education | 3.63% | 175,000 | $6.6M | Reduce -34.0% |
| CELH Celsius Holdings Inc. | 3.51% | 140,000 | $6.4M | Reduce -6.7% |
| CSL Carlisle Cos Inc. | 3.51% | 20,000 | $6.4M | New |
| CALX Calix Inc. | 3.34% | 115,000 | $6.1M | New |
| ACVA Acv Auctions Inc. Class A | 3.30% | 750,000 | $6.0M | New |
| SGHC Super Group SGHC Ltd. | 3.27% | 500,000 | $6.0M | Reduce -28.6% |
| DAVE Dave Inc. | 3.03% | 25,000 | $5.5M | New |
| NEM Newmont Corp. | 2.74% | 50,000 | $5.0M | Reduce -33.3% |
| ONTO Onto Innovation Inc. | 2.60% | 30,000 | $4.7M | Reduce -57.1% |
| FIX Comfort Systems USA Inc. | 2.56% | 5,000 | $4.7M | No change |
| COHU Cohu Inc. | 2.55% | 200,000 | $4.7M | New |
| UTI Universal Technical Institut | 2.51% | 175,000 | $4.6M | New |
| LINC Lincoln Educational Services | 2.45% | 185,000 | $4.5M | New |
| DIN Dine Brands Global Inc. | 2.38% | 135,000 | $4.3M | New |
| KAI Kadant Inc. | 2.34% | 15,000 | $4.3M | New |
| NE Noble Corp. PLC | 2.32% | 150,000 | $4.2M | New |
| NSSC Napco Security Technologies | 2.29% | 100,000 | $4.2M | No change |
| ON On Semiconductor | 2.23% | 75,000 | $4.1M | New |
| ESTA Establishment Labs Holdings | 2.20% | 55,000 | $4.0M | Reduce -26.7% |
| RAMP Liveramp Holdings Inc. | 2.17% | 135,000 | $4.0M | Reduce -32.5% |
| KNX Knight-Swift Transportation | 2.15% | 75,000 | $3.9M | New |
| MPWR Monolithic Power Systems Inc. | 1.99% | 4,000 | $3.6M | Reduce -38.5% |
| PWR Quanta Services Inc. | 1.97% | 8,500 | $3.6M | Reduce -15.0% |
| BOOT Boot Barn Holdings Inc. | 1.93% | 20,000 | $3.5M | Reduce -42.9% |
| KNF Knife River Corp. | 1.93% | 50,000 | $3.5M | New |
| UCTT Ultra Clean Holdings Inc. | 1.87% | 135,000 | $3.4M | New |
| TRNS Transcat Inc. | 1.87% | 60,000 | $3.4M | Reduce -7.7% |
| MEI Methode Electronics Inc. | 1.82% | 500,000 | $3.3M | New |
| AEIS Advanced Energy Industries | 1.72% | 15,000 | $3.1M | New |
| LOVE The Lovesac Co. | 1.62% | 200,000 | $3.0M | New |
| BBSI Barrett Business SVCS Inc. | 1.49% | 75,000 | $2.7M | Reduce -21.1% |
| PAL Proficient Auto Logistics Inc. | 1.06% | 200,000 | $1.9M | New |
Portfolio Sells Q3 2025 → Q4 2025
| USPH U.S. Physical Therapy Inc. | Sold out | 0.00% | −4.97 |
| VEEV Veeva Systems Inc. Class A | Sold out | 0.00% | −3.97 |
| VECO Veeco Instruments Inc. | Sold out | 0.00% | −3.24 |
| GWRE Guidewire Software Inc. | Sold out | 0.00% | −3.06 |
| RXST Rxsight Inc. | Sold out | 0.00% | −2.66 |
| STRL Sterling Infrastructure Inc. | Sold out | 0.00% | −2.53 |
| CDE Coeur Mining Inc. | Sold out | 0.00% | −2.50 |
| CVCO Cavco Industries Inc. | Sold out | 0.00% | −2.32 |
| MOD Modine Manufacturing Co. | Sold out | 0.00% | −2.27 |
| ONTO Onto Innovation Inc. | Reduce -57.1% | 2.60% | −2.22 |
| GRBK Green Brick Partners Inc. | Sold out | 0.00% | −1.97 |
| APEI American Public Education | Reduce -34.0% | 3.63% | −1.94 |
| LSCC Lattice Semiconductor Corp. | Sold out | 0.00% | −1.76 |
| EME Emcor Group Inc. | Sold out | 0.00% | −1.73 |
| SGHC Super Group SGHC Ltd. | Reduce -28.6% | 3.27% | −1.64 |
| NGD New Gold Inc. | Sold out | 0.00% | −1.53 |
| ALM Almonty Industries Inc. | Sold out | 0.00% | −1.28 |
| MPWR Monolithic Power Systems Inc. | Reduce -38.5% | 1.99% | −1.20 |
| LRN Stride Inc. | Sold out | 0.00% | −1.19 |
| BOOT Boot Barn Holdings Inc. | Reduce -42.9% | 1.93% | −1.15 |
| CELH Celsius Holdings Inc. | Reduce -6.7% | 3.51% | −1.08 |
| BBSI Barrett Business SVCS Inc. | Reduce -21.1% | 1.49% | −0.75 |
| RAMP Liveramp Holdings Inc. | Reduce -32.5% | 2.17% | −0.72 |
| TRNS Transcat Inc. | Reduce -7.7% | 1.87% | −0.67 |
| NEM Newmont Corp. | Reduce -33.3% | 2.74% | −0.63 |
| FICO Fair Isaac Corp. | Reduce -20.0% | 3.71% | −0.28 |
| PWR Quanta Services Inc. | Reduce -15.0% | 1.97% | −0.24 |
| ESTA Establishment Labs Holdings | Reduce -26.7% | 2.20% | +0.56 |
Portfolio Buys Q3 2025 → Q4 2025
| CWST Casella Waste Systems Inc. Class A | New | 5.10% | +5.10 |
| CSL Carlisle Cos Inc. | New | 3.51% | +3.51 |
| CALX Calix Inc. | New | 3.34% | +3.34 |
| ACVA Acv Auctions Inc. Class A | New | 3.30% | +3.30 |
| DAVE Dave Inc. | New | 3.03% | +3.03 |
| COHU Cohu Inc. | New | 2.55% | +2.55 |
| UTI Universal Technical Institut | New | 2.51% | +2.51 |
| LINC Lincoln Educational Services | New | 2.45% | +2.45 |
| DIN Dine Brands Global Inc. | New | 2.38% | +2.38 |
| KAI Kadant Inc. | New | 2.34% | +2.34 |
| NE Noble Corp. PLC | New | 2.32% | +2.32 |
| ON On Semiconductor | New | 2.23% | +2.23 |
| KNX Knight-Swift Transportation | New | 2.15% | +2.15 |
| KNF Knife River Corp. | New | 1.93% | +1.93 |
| UCTT Ultra Clean Holdings Inc. | New | 1.87% | +1.87 |
| MEI Methode Electronics Inc. | New | 1.82% | +1.82 |
| AEIS Advanced Energy Industries | New | 1.72% | +1.72 |
| LOVE The Lovesac Co. | New | 1.62% | +1.62 |
| TPB Turning Point Brands Inc. | Add +15.0% | 6.83% | +1.57 |
| PAL Proficient Auto Logistics Inc. | New | 1.06% | +1.06 |
| FSS Federal Signal Corp. | Add +27.3% | 4.17% | +0.68 |
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 37 | $260.3M | KNX, JBHT, ARCB, AXON, CLH |
| Q1 2026 | 34 | $157.8M | WM, APEI, JBHT, ODFL, PR |
| Q4 2025 | 37 | $182.5M | TPB, CWST, FSS, AXON, FICO |
| Q3 2025 | 33 | $187.8M | APEI, TPB, USPH, SGHC, ONTO |
| Q2 2025 | 34 | $186.0M | TPB, AXON, APEI, FSS, CELH |
| Q1 2025 | 32 | $128.7M | WM, AXON, RSG, LOPE, VEEV |
| Q4 2024 | 34 | $142.5M | KNF, AXON, GPI, WM, TNDM |