Pinnbrook Capital Management LP
In its 13F for Q2 2026 (holdings as of June 30, 2026, filed August 12, 2026), Pinnbrook Capital Management LP reported 88 stock positions worth $601.0 million. Its top holding was CSX (CSX) at 7.4% of the portfolio, followed by Kodiak Gas Services (KGS, 4.9%) and Jabil (JBL, 3.8%). Compared with Q1 2026, it opened 71 new positions, sold out of 16, added to 14 and reduced 3. The biggest buy was CSX (CSX, shares +1157%) and the biggest sale Mastec (MTZ, shares −25%).
- Most Recent 13F
- Q2 2026
- Location
- NEW YORK, NY
- CIK
- 0001856103
- Portfolio Value
- $601.0M (Q2 2026)
- SEC Filing
- 0001856103-26-000005 ↗ filed Aug 12, 2026
Holdings Value
Holdings 88 stocks · $601.0M
| CSX CSX Corp. | 7.43% | 939,978 | $44.7M | Add +1156.7% |
| KGS Kodiak Gas Services Inc. | 4.90% | 391,854 | $29.4M | Add +124.1% |
| JBL Jabil Inc. | 3.78% | 58,867 | $22.7M | Add +167.2% |
| NTRA Natera Inc. | 3.13% | 69,300 | $18.8M | New |
| WAB Wabtec Corp. | 3.10% | 69,107 | $18.6M | Add +760.0% |
| PWR Quanta Services Inc. | 2.84% | 23,734 | $17.1M | New |
| TKR Timken Co. | 2.74% | 113,500 | $16.5M | New |
| ATI Ati Inc. | 2.69% | 82,081 | $16.2M | Add +1089.6% |
| TXN Texas Instruments Inc. | 2.50% | 50,400 | $15.0M | New |
| ARMK Aramark | 2.44% | 257,700 | $14.7M | New |
| DTM DT Midstream Inc. | 2.37% | 97,009 | $14.2M | New |
| STX Seagate Technology Holdings | 2.22% | 13,840 | $13.4M | Add +432.3% |
| PFGC Performance Food Group Co. | 2.14% | 115,000 | $12.9M | New |
| WDC Western Digital Corp. | 2.05% | 19,280 | $12.3M | Add +46.1% |
| MTZ Mastec Inc. | 1.89% | 27,243 | $11.3M | Reduce -24.7% |
| DBA Invesco DB Agriculture Fund | 1.87% | 421,600 | $11.2M | New |
| VIK Viking Holdings Ltd. | 1.66% | 95,300 | $10.0M | Add +533.3% |
| KNX Knight-Swift Transportation | 1.65% | 127,400 | $9.9M | New |
| STM Stmicroelectronics NV-NY SHS | 1.64% | 131,347 | $9.8M | New |
| GOOGL Alphabet Inc. Class A | 1.51% | 25,440 | $9.1M | New |
| HWM Howmet Aerospace Inc. | 1.49% | 33,317 | $9.0M | New |
| SPHR Sphere Entertainment Co. | 1.47% | 51,208 | $8.9M | Add +19.6% |
| NVT Nvent Electric PLC | 1.47% | 52,110 | $8.8M | Add +206.5% |
| MATX Matson Inc. | 1.47% | 45,814 | $8.8M | Add +409.0% |
| FTI Technipfmc PLC | 1.42% | 129,105 | $8.6M | Add +192.6% |
| ROST Ross Stores Inc. | 1.40% | 39,593 | $8.4M | Add +65.5% |
| ESE Esco Technologies Inc. | 1.34% | 22,960 | $8.0M | New |
| LLY Eli Lilly & Co. | 1.33% | 6,640 | $8.0M | New |
| SGI Somnigroup International Inc. | 1.32% | 101,429 | $8.0M | New |
| SNX TD Synnex Corp. | 1.23% | 27,600 | $7.4M | New |
| VTR Ventas Inc. | 1.20% | 81,200 | $7.2M | New |
| FLEX Flex Ltd. | 1.18% | 43,700 | $7.1M | New |
| VLO Valero Energy Corp. | 1.15% | 26,636 | $6.9M | New |
| CDW CDW Corp. | 1.04% | 44,300 | $6.2M | New |
| TWLO Twilio Inc. Class A | 1.02% | 29,600 | $6.1M | New |
| GFS Globalfoundries Inc. | 0.98% | 71,600 | $5.9M | New |
| WELL Welltower Inc. | 0.96% | 25,500 | $5.8M | New |
| INIO Innio NV | 0.94% | 142,900 | $5.7M | New |
| MKSI MKS Inc. | 0.94% | 12,700 | $5.6M | New |
| DOCN Digitalocean Holdings Inc. | 0.90% | 34,262 | $5.4M | New |
| H Hyatt Hotels Corp. Class A | 0.85% | 26,500 | $5.1M | New |
| ARW Arrow Electronics Inc. | 0.84% | 23,700 | $5.1M | New |
| HUT Hut 8 Corp. | 0.83% | 43,200 | $5.0M | New |
| CRL Charles River Laboratories | 0.80% | 21,300 | $4.8M | New |
| TREX Trex Company Inc. filed as TREX INC | 0.78% | 93,900 | $4.7M | New |
| DDOG Datadog Inc. Class A | 0.76% | 17,655 | $4.6M | New |
| TSM Taiwan Semiconductor-SP ADR | 0.71% | 8,945 | $4.3M | New |
| COHR Coherent Corp. | 0.67% | 10,160 | $4.0M | New |
| FTNT Fortinet Inc. | 0.66% | 25,900 | $4.0M | New |
| SNOW Snowflake Inc. | 0.64% | 15,070 | $3.8M | New |
| MRVL Marvell Technology Inc. | 0.62% | 12,500 | $3.7M | New |
| OKTA Okta Inc. | 0.58% | 25,700 | $3.5M | New |
| SNDK Sandisk Corp. | 0.57% | 1,520 | $3.5M | New |
| MAIR Madison Air Solutions Corp. Class A | 0.52% | 80,600 | $3.1M | New |
| NOK Nokia Corp.-Spon ADR | 0.51% | 232,133 | $3.1M | New |
| UNH Unitedhealth Group Inc. | 0.51% | 7,360 | $3.1M | New |
| VSAT Viasat Inc. | 0.50% | 33,500 | $3.0M | New |
| CARR Carrier Global Corp. | 0.50% | 41,000 | $3.0M | New |
| BRKR Bruker Corp. | 0.50% | 49,900 | $3.0M | New |
| CIEN Ciena Corp. | 0.48% | 5,920 | $2.9M | Add +186.7% |
| MPC Marathon Petroleum Corp. | 0.43% | 10,038 | $2.6M | New |
| NSIT Insight Enterprises Inc. | 0.42% | 20,800 | $2.5M | New |
| FOXA Fox Corp. Class A | 0.42% | 48,200 | $2.5M | New |
| CART Maplebear Inc. | 0.42% | 52,800 | $2.5M | New |
| CW Curtiss-Wright Corp. | 0.41% | 3,280 | $2.5M | Reduce -67.4% |
| IEX Idex Corp. | 0.36% | 9,500 | $2.2M | New |
| FWONK Liberty Media Corp. Class C | 0.35% | 22,400 | $2.1M | New |
| MU Micron Technology Inc. | 0.35% | 1,800 | $2.1M | New |
| CLS Celestica Inc. | 0.34% | 5,600 | $2.0M | New |
| KTB Kontoor Brands Inc. | 0.34% | 24,500 | $2.0M | New |
| EMBJ Embraer SA-Spon ADR | 0.34% | 31,700 | $2.0M | Reduce -25.7% |
| WAT Waters Corp. | 0.33% | 5,360 | $2.0M | New |
| LFUS Littelfuse Inc. | 0.33% | 4,320 | $2.0M | New |
| C Citigroup Inc. | 0.31% | 13,300 | $1.9M | New |
| OC Owens Corning | 0.28% | 10,700 | $1.7M | New |
| AMZN Amazon.com Inc. | 0.28% | 7,100 | $1.7M | New |
| ANET Arista Networks Inc. | 0.27% | 9,500 | $1.6M | New |
| TXG 10X Genomics Inc. Class A | 0.26% | 40,600 | $1.6M | New |
| LYV Live Nation Entertainment Inc. | 0.26% | 8,400 | $1.5M | New |
| MSGE Madison Square Garden Entert | 0.25% | 18,900 | $1.5M | New |
| FPS Forgent Power Solutions Class A | 0.25% | 26,900 | $1.5M | New |
| RVTY Revvity Inc. | 0.25% | 13,500 | $1.5M | New |
| BE Bloom Energy Corp. Class A | 0.25% | 4,900 | $1.5M | New |
| MTSI Macom Technology Solutions H | 0.18% | 2,800 | $1.1M | New |
| CIFR Cipher Digital Inc. | 0.18% | 43,000 | $1.1M | New |
| CR Crane Co. | 0.17% | 4,500 | $1.0M | New |
| BCS Barclays PLC-Spons ADR | 0.17% | 37,100 | $997K | New |
| MS Morgan Stanley | 0.16% | 4,700 | $982K | New |
Options reported separately and not counted above: QQQ puts ($110.5M), AMD calls ($38.0M), TSM calls ($26.7M), SNDK calls ($26.1M), STX calls ($25.5M), MPC calls ($22.1M), MU calls ($16.7M), FTI calls ($16.6M), AMZN calls ($13.9M), HUT calls ($8.9M), CIFR calls ($8.6M), SNOW calls ($8.1M), and 3 more.
Portfolio Sells Q1 2026 → Q2 2026
| MTZ Mastec Inc. | Reduce -24.7% | 1.89% | −7.62 |
| CW Curtiss-Wright Corp. | Reduce -67.4% | 0.41% | −5.18 |
| SLB SLB Ltd. | Sold out | 0.00% | −5.07 |
| LRCX Lam Research Corp. | Sold out | 0.00% | −4.90 |
| DVN Devon Energy Corp. | Sold out | 0.00% | −4.86 |
| MRK Merck & Co. Inc. | Sold out | 0.00% | −4.53 |
| LIN Linde PLC | Sold out | 0.00% | −4.11 |
| AMAT Applied Materials Inc. | Sold out | 0.00% | −4.10 |
| PR Permian Resources Corp. Class A | Sold out | 0.00% | −3.39 |
| TJX TJX Companies Inc. | Sold out | 0.00% | −2.54 |
| BWXT BWX Technologies Inc. | Sold out | 0.00% | −2.20 |
| FIVE Five Below | Sold out | 0.00% | −2.11 |
| FDX FedEx Corp. | Sold out | 0.00% | −2.00 |
| CRS Carpenter Technology | Sold out | 0.00% | −1.77 |
| EMBJ Embraer SA-Spon ADR | Reduce -25.7% | 0.34% | −1.73 |
| MOD Modine Manufacturing Co. | Sold out | 0.00% | −1.72 |
| ASML ASML Holding NV-NY Reg SHS | Sold out | 0.00% | −1.21 |
| GEV GE Vernova Inc. | Sold out | 0.00% | −0.83 |
| LITE Lumentum Holdings Inc. | Sold out | 0.00% | −0.41 |
Portfolio Buys Q1 2026 → Q2 2026
| CSX CSX Corp. | Add +1156.7% | 7.43% | +4.93 |
| NTRA Natera Inc. | New | 3.13% | +3.13 |
| PWR Quanta Services Inc. | New | 2.84% | +2.84 |
| TKR Timken Co. | New | 2.74% | +2.74 |
| TXN Texas Instruments Inc. | New | 2.50% | +2.50 |
| ARMK Aramark | New | 2.44% | +2.44 |
| DTM DT Midstream Inc. | New | 2.37% | +2.37 |
| PFGC Performance Food Group Co. | New | 2.14% | +2.14 |
| ATI Ati Inc. | Add +1089.6% | 2.69% | +1.87 |
| DBA Invesco DB Agriculture Fund | New | 1.87% | +1.87 |
| KNX Knight-Swift Transportation | New | 1.65% | +1.65 |
| STM Stmicroelectronics NV-NY SHS | New | 1.64% | +1.64 |
| GOOGL Alphabet Inc. Class A | New | 1.51% | +1.51 |
| HWM Howmet Aerospace Inc. | New | 1.49% | +1.49 |
| WAB Wabtec Corp. | Add +760.0% | 3.10% | +1.46 |
| STX Seagate Technology Holdings | Add +432.3% | 2.22% | +1.39 |
| ESE Esco Technologies Inc. | New | 1.34% | +1.34 |
| LLY Eli Lilly & Co. | New | 1.33% | +1.33 |
| SGI Somnigroup International Inc. | New | 1.32% | +1.32 |
| SNX TD Synnex Corp. | New | 1.23% | +1.23 |
| VTR Ventas Inc. | New | 1.20% | +1.20 |
| FLEX Flex Ltd. | New | 1.18% | +1.18 |
| VLO Valero Energy Corp. | New | 1.15% | +1.15 |
| CDW CDW Corp. | New | 1.04% | +1.04 |
| TWLO Twilio Inc. Class A | New | 1.02% | +1.02 |
| GFS Globalfoundries Inc. | New | 0.98% | +0.98 |
| WELL Welltower Inc. | New | 0.96% | +0.96 |
| INIO Innio NV | New | 0.94% | +0.94 |
| MKSI MKS Inc. | New | 0.94% | +0.94 |
| DOCN Digitalocean Holdings Inc. | New | 0.90% | +0.90 |
| H Hyatt Hotels Corp. Class A | New | 0.85% | +0.85 |
| ARW Arrow Electronics Inc. | New | 0.84% | +0.84 |
| HUT Hut 8 Corp. | New | 0.83% | +0.83 |
| CRL Charles River Laboratories | New | 0.80% | +0.80 |
| TREX Trex Company Inc. | New | 0.78% | +0.78 |
| DDOG Datadog Inc. Class A | New | 0.76% | +0.76 |
| VIK Viking Holdings Ltd. | Add +533.3% | 1.66% | +0.76 |
| TSM Taiwan Semiconductor-SP ADR | New | 0.71% | +0.71 |
| COHR Coherent Corp. | New | 0.67% | +0.67 |
| FTNT Fortinet Inc. | New | 0.66% | +0.66 |
| SNOW Snowflake Inc. | New | 0.64% | +0.64 |
| MRVL Marvell Technology Inc. | New | 0.62% | +0.62 |
| OKTA Okta Inc. | New | 0.58% | +0.58 |
| SNDK Sandisk Corp. | New | 0.57% | +0.57 |
| MAIR Madison Air Solutions Corp. Class A | New | 0.52% | +0.52 |
| NOK Nokia Corp.-Spon ADR | New | 0.51% | +0.51 |
| UNH Unitedhealth Group Inc. | New | 0.51% | +0.51 |
| VSAT Viasat Inc. | New | 0.50% | +0.50 |
| CARR Carrier Global Corp. | New | 0.50% | +0.50 |
| BRKR Bruker Corp. | New | 0.50% | +0.50 |
Options Activity Q1 2026 → Q2 2026
| QQQ Invesco QQQ Trust Series 1 | put | New | 150,000 | $110.5M |
| BKLN Invesco Senior Loan ETF | put | Sold out | 4,500,000 | $91.8Mbefore exit |
| WDC Western Digital Corp. | call | Sold out | 149,600 | $40.5Mbefore exit |
| AMD Advanced Micro Devices | call | New | 65,400 | $38.0M |
| TSM Taiwan Semiconductor-SP ADR | call | New | 56,000 | $26.7M |
| SNDK Sandisk Corp. | call | New | 11,500 | $26.1M |
| STX Seagate Technology Holdings | call | New | 26,400 | $25.5M |
| MPC Marathon Petroleum Corp. | call | New | 86,400 | $22.1M |
| SMH Vaneck Semiconductor ETF | put | Sold out | 55,500 | $21.3Mbefore exit |
| GLW Corning Inc. | call | Sold out | 140,000 | $19.0Mbefore exit |
| GEV GE Vernova Inc. | call | Sold out | 20,000 | $17.5Mbefore exit |
| MU Micron Technology Inc. | call | New | 14,500 | $16.7M |
| AA Alcoa Corp. | call | Sold out | 250,000 | $16.6Mbefore exit |
| FTI Technipfmc PLC | call | New | 250,000 | $16.6M |
| BP BP PLC-Spons ADR | call | Sold out | 300,000 | $14.1Mbefore exit |
| AMZN Amazon.com Inc. | call | New | 58,500 | $13.9M |
| SLB SLB Ltd. | call | Sold out | 255,000 | $13.1Mbefore exit |
| CIEN Ciena Corp. | call | Sold out | 24,500 | $9.5Mbefore exit |
| HUT Hut 8 Corp. | call | New | 77,200 | $8.9M |
| CIFR Cipher Digital Inc. | call | New | 350,000 | $8.6M |
| SNOW Snowflake Inc. | call | New | 32,000 | $8.1M |
| NOK Nokia Corp.-Spon ADR | call | New | 542,100 | $7.2M |
| DVN Devon Energy Corp. | call | Sold out | 140,000 | $7.0Mbefore exit |
| NKE Nike Inc. Class B | put | New | 100,000 | $4.1M |
| LITE Lumentum Holdings Inc. | call | Reduce -53.0% | 4,700 | $4.0M |
| CX Cemex Sab-Spons ADR Part Cer | call | Sold out | 350,000 | $4.0Mbefore exit |
Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 88 | $601.0M | CSX, KGS, JBL, NTRA, WAB |
| Q1 2026 | 33 | $122.4M | MTZ, KGS, CW, SLB, LRCX |
| Q4 2025 | 84 | $386.8M | IEF, CHRW, RBC, XLV, AME |
| Q3 2025 | 115 | $540.5M | CHRW, MSFT, META, MLM, SPOT |
| Q2 2025 | 69 | $382.0M | ORCL, PRMB, PGR, CW, HAS |
| Q1 2025 | 37 | $154.9M | PRMB, WWD, HEI, TDG, WTW |
| Q4 2024 | 65 | $285.0M | T, FTI, TRP, PRMB, LYV |
| Q3 2024 | 64 | $331.0M | MMM, WAB, CRS, FLUT, MAR |
| Q2 2024 | 48 | $331.3M | AMZN, AAPL, TDG, OLED, COHR |
| Q1 2024 | 78 | $578.3M | MSFT, NVDA, AMZN, NVT, BLDR |