13D Management LLC
In its 13F for Q4 2024 (holdings as of December 31, 2024, filed February 14, 2025), 13D Management LLC reported 21 stock positions worth $135.0 million. Its top holding was Twilio Class A (TWLO) at 7.3% of the portfolio, followed by Vestis (VSTS, 7.1%) and Southwest Gas (SWX, 6.9%). Compared with Q3 2024, it opened 5 new positions, sold out of 6, added to 10 and reduced 6. The biggest buy was a new position in Lamb Weston (LW) and the biggest sale an exit from Frontier Communications Pare (FYBR).
- Most Recent 13F
- Q2 2026
- Location
- New York, NY
- CIK
- 0001600133
- Portfolio Value
- $135.0M (Q4 2024)
- SEC Filing
- 0000921895-25-000422 ↗ filed Feb 14, 2025
Holdings Value
Holdings 21 stocks · $135.0M
| TWLO Twilio Inc. Class A | 7.27% | 90,757 | $9.8M | Reduce -8.2% |
| VSTS Vestis Corp. | 7.09% | 627,787 | $9.6M | Add +13.2% |
| SWX Southwest Gas Holdings Inc. | 6.92% | 132,109 | $9.3M | Add +0.2% |
| MRCY Mercury Systems Inc. | 6.88% | 221,015 | $9.3M | Add +68.1% |
| PSO Pearson PLC-Sponsored ADR | 6.14% | 513,759 | $8.3M | Add +0.2% |
| NSIT Insight Enterprises Inc. | 6.03% | 53,476 | $8.1M | Add +0.2% |
| EXEL Exelixis Inc. | 5.64% | 228,610 | $7.6M | Reduce -36.6% |
| ABG Asbury Automotive Group | 5.47% | 30,361 | $7.4M | Add +0.2% |
| JHG Janus Henderson Group PLC | 4.76% | 150,953 | $6.4M | Reduce -19.5% |
| LW Lamb Weston Holdings Inc. | 4.47% | 90,294 | $6.0M | New |
| ALV Autoliv Inc. | 4.35% | 62,589 | $5.9M | Add +15.8% |
| CNI Canadian Natl Railway Co. | 4.09% | 54,413 | $5.5M | Add +0.2% |
| RPD RAPID7 Inc. | 4.04% | 135,600 | $5.5M | New |
| RIOT Riot Platforms Inc. | 3.85% | 508,500 | $5.2M | New |
| APD Air Products & Chemicals Inc. | 3.75% | 17,450 | $5.1M | New |
| BLCO Bausch + Lomb Corp. | 3.64% | 272,048 | $4.9M | Add +0.0% |
| MTCH Match Group Inc. | 3.61% | 148,828 | $4.9M | Add +0.1% |
| HR Healthcare Realty Trust Inc. | 3.57% | 284,350 | $4.8M | New |
| ETSY Etsy Inc. | 3.42% | 87,258 | $4.6M | Reduce -0.6% |
| PENN Penn Entertainment Inc. | 3.21% | 218,654 | $4.3M | Reduce -0.1% |
| FTRE Fortrea Holdings Inc. | 1.83% | 132,425 | $2.5M | Reduce -0.1% |
Portfolio Sells Q3 2024 → Q4 2024
| FYBR Frontier Communications Pare | Sold out | 0.00% | −10.27 |
| MDU Mdu Resources Group Inc. | Sold out | 0.00% | −6.13 |
| THS Treehouse Foods Inc. | Sold out | 0.00% | −3.25 |
| ENV Envestnet Inc. | Sold out | 0.00% | −1.93 |
| EXEL Exelixis Inc. | Reduce -36.6% | 5.64% | −1.22 |
| AZTA Azenta Inc. | Sold out | 0.00% | −0.71 |
| JHG Janus Henderson Group PLC | Reduce -19.5% | 4.76% | −0.48 |
| BBWI Bath & Body Works Inc. | Sold out | 0.00% | −0.42 |
| ETSY Etsy Inc. | Reduce -0.6% | 3.42% | −0.16 |
| FTRE Fortrea Holdings Inc. | Reduce -0.1% | 1.83% | −0.11 |
| PENN Penn Entertainment Inc. | Reduce -0.1% | 3.21% | +0.18 |
| TWLO Twilio Inc. Class A | Reduce -8.2% | 7.27% | +2.54 |
Portfolio Buys Q3 2024 → Q4 2024
| LW Lamb Weston Holdings Inc. | New | 4.47% | +4.47 |
| RPD RAPID7 Inc. | New | 4.04% | +4.04 |
| RIOT Riot Platforms Inc. | New | 3.85% | +3.85 |
| APD Air Products & Chemicals Inc. | New | 3.75% | +3.75 |
| HR Healthcare Realty Trust Inc. | New | 3.57% | +3.57 |
| MRCY Mercury Systems Inc. | Add +68.1% | 6.88% | +3.31 |
| PSO Pearson PLC-Sponsored ADR | Add +0.2% | 6.14% | +1.03 |
| VSTS Vestis Corp. | Add +13.2% | 7.09% | +1.03 |
| ALV Autoliv Inc. | Add +15.8% | 4.35% | +0.65 |
| ABG Asbury Automotive Group | Add +0.2% | 5.47% | +0.17 |
| BLCO Bausch + Lomb Corp. | Add +0.0% | 3.64% | −0.21 |
| SWX Southwest Gas Holdings Inc. | Add +0.2% | 6.92% | −0.21 |
| MTCH Match Group Inc. | Add +0.1% | 3.61% | −0.52 |
| CNI Canadian Natl Railway Co. | Add +0.2% | 4.09% | −0.57 |
| NSIT Insight Enterprises Inc. | Add +0.2% | 6.03% | −2.40 |
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 11 | $71.3M | VSAT, TWLO, MRCY, PSO, ALV |
| Q1 2026 | 13 | $64.5M | TWLO, VSAT, ACHC, PSO, ALV |
| Q4 2025 | 16 | $84.0M | TWLO, MRCY, VSAT, ALV, PSO |
| Q3 2025 | 18 | $104.3M | MRCY, QRVO, VSAT, ALV, PSO |
| Q2 2025 | 20 | $109.6M | TWLO, QRVO, MRCY, SWX, PSO |
| Q1 2025 | 21 | $113.4M | MRCY, PSO, NSIT, APD, SWX |
| Q4 2024 | 21 | $135.0M | TWLO, VSTS, SWX, MRCY, PSO |
| Q3 2024 | 22 | $136.4M | FYBR, NSIT, SWX, EXEL, MDU |
| Q2 2024 | 21 | $137.1M | NSIT, FYBR, SWX, EXEL, TWLO |
| Q1 2024 | 28 | $163.8M | GDDY, SWX, NSIT, FYBR, ELAN |