Isthmus Partners, LLC
In its 13F for Q2 2025 (holdings as of June 30, 2025, filed August 13, 2025), Isthmus Partners, LLC reported 217 stock positions worth $856.1 million. Its top holding was Microsoft (MSFT) at 2.7% of the portfolio, followed by Trane Technologies (TT, 2.2%) and Cencora (COR, 2.2%). Compared with Q1 2025, it opened 17 new positions, sold out of 11, added to 91 and reduced 46. The biggest buy was Alphabet Class A (GOOGL, shares +3400%) and the biggest sale an exit from Quest Diagnostics (DGX).
- Most Recent 13F
- Q2 2026
- Location
- MADISON, WI
- CIK
- 0001639666
- Portfolio Value
- $856.1M (Q2 2025)
- SEC Filing
- 0001104659-25-077422 ↗ filed Aug 13, 2025
Holdings Value
Holdings 217 stocks · $856.1M
| MSFT Microsoft Corp. | 2.75% | 47,255 | $23.5M | Add +5.5% |
| TT Trane Technologies PLC | 2.24% | 43,902 | $19.2M | Reduce -4.3% |
| COR Cencora Inc. | 2.20% | 62,695 | $18.8M | Reduce -4.5% |
| AAPL Apple Inc. | 2.19% | 91,369 | $18.7M | Add +1.9% |
| AMCR Amcor PLC | 2.15% | 2,003,404 | $18.4M | No change |
| AVGO Broadcom Inc. | 2.05% | 63,610 | $17.5M | Reduce -0.4% |
| AZO AutoZone Inc. | 2.01% | 4,626 | $17.2M | Reduce -2.9% |
| EBAY eBay Inc. | 1.96% | 225,218 | $16.8M | Reduce -3.9% |
| GOOGL Alphabet Inc. Class A | 1.89% | 91,873 | $16.2M | Add +3399.9% |
| WRB WR Berkley Corp. filed as BERKLEY W R CORP | 1.83% | 213,804 | $15.7M | Reduce -4.7% |
| BNY Bank of New York Mellon Corp. filed as BANK NEW YORK MELLON CORP | 1.82% | 171,282 | $15.6M | Reduce -1.3% |
| JNJ Johnson & Johnson | 1.78% | 99,624 | $15.2M | Add +0.0% |
| GWW WW Grainger Inc. filed as GRAINGER W W INC | 1.76% | 14,463 | $15.0M | Reduce -0.0% |
| EMR Emerson Electric Co. | 1.76% | 112,772 | $15.0M | Reduce -0.5% |
| PYPL PayPal Holdings Inc. | 1.74% | 200,028 | $14.9M | Reduce -3.3% |
| CBOE Cboe Global Markets Inc. | 1.72% | 63,199 | $14.7M | Reduce -0.4% |
| DXCM Dexcom Inc. | 1.71% | 167,387 | $14.6M | New |
| ALSN Allison Transmission Holding | 1.70% | 153,528 | $14.6M | Add +0.6% |
| HCA HCA Healthcare Inc. | 1.65% | 36,936 | $14.2M | Add +0.6% |
| PNC PNC Financial Services Group | 1.65% | 75,844 | $14.1M | Add +0.3% |
| ROK Rockwell Automation Inc. | 1.64% | 42,381 | $14.1M | Reduce -1.3% |
| ULTA Ulta Beauty Inc. | 1.64% | 29,981 | $14.0M | Reduce -0.6% |
| CHRW C.H. Robinson Worldwide Inc. | 1.59% | 141,551 | $13.6M | Reduce -0.2% |
| AMAT Applied Materials Inc. | 1.58% | 73,951 | $13.5M | Add +20.2% |
| FITB Fifth Third Bancorp | 1.52% | 316,024 | $13.0M | Reduce -0.2% |
| ZBRA Zebra Technologies Corp. Class A | 1.52% | 42,143 | $13.0M | Add +2.8% |
| IT Gartner Inc. | 1.49% | 31,500 | $12.7M | Add +0.9% |
| UPS United Parcel Service Class B | 1.47% | 125,029 | $12.6M | Add +24.2% |
| CL Colgate-Palmolive Co. | 1.46% | 137,419 | $12.5M | Add +0.2% |
| PSA Public Storage | 1.44% | 41,943 | $12.3M | Reduce -0.0% |
| SYY Sysco Corp. | 1.43% | 161,113 | $12.2M | Add +0.8% |
| MCD McDonald's Corp. | 1.42% | 41,583 | $12.1M | Reduce -21.2% |
| HSY The Hershey Co. | 1.41% | 72,840 | $12.1M | Add +0.9% |
| ABBV Abbvie Inc. | 1.39% | 64,145 | $11.9M | Add +3618.6% |
| FLS Flowserve Corp. | 1.38% | 226,194 | $11.8M | Reduce -0.1% |
| LMT Lockheed Martin Corp. | 1.34% | 24,825 | $11.5M | Add +1.3% |
| LKQ LKQ Corp. | 1.30% | 301,010 | $11.1M | Add +2.3% |
| ZTS Zoetis Inc. | 1.28% | 70,400 | $11.0M | Add +0.5% |
| LOW Lowe's Cos Inc. | 1.26% | 48,616 | $10.8M | Add +0.6% |
| ACN Accenture PLC Class A | 1.21% | 34,596 | $10.3M | Add +1.1% |
| CTRA Coterra Energy Inc. | 1.21% | 406,830 | $10.3M | Add +0.4% |
| BAH Booz Allen Hamilton Holdings | 1.15% | 94,662 | $9.9M | Add +1.4% |
| SLB SLB Ltd. filed as SCHLUMBERGER LTD | 1.07% | 269,891 | $9.1M | Add +3.9% |
| SPTM SS SPDR P S&P 1500 Comp ETF | 0.73% | 82,977 | $6.2M | Add +4.4% |
| PCAR Paccar Inc. | 0.71% | 63,744 | $6.1M | Add +0.1% |
| INTC Intel Corp. | 0.65% | 247,660 | $5.5M | Add +100.1% |
| CRK Comstock Resources Inc. | 0.61% | 188,846 | $5.2M | Reduce -18.1% |
| FTDR Frontdoor Inc. | 0.58% | 84,704 | $5.0M | Reduce -5.9% |
| CNM Core & Main Inc. Class A | 0.58% | 82,158 | $5.0M | Reduce -0.5% |
| LMB Limbach Holdings Inc. | 0.56% | 34,320 | $4.8M | Reduce -22.8% |
| BELFB Bel Fuse Inc. Class B | 0.54% | 47,359 | $4.6M | Reduce -0.0% |
| LGND Ligand Pharmaceuticals | 0.49% | 37,273 | $4.2M | Reduce -1.1% |
| MLI Mueller Industries Inc. | 0.49% | 52,781 | $4.2M | Reduce -4.2% |
| AEIS Advanced Energy Industries | 0.46% | 29,615 | $3.9M | Add +0.2% |
| TILE Interface Inc. | 0.45% | 185,231 | $3.9M | Reduce -1.1% |
| GMS GMS Inc. | 0.45% | 35,535 | $3.9M | Reduce -0.5% |
| TTEK Tetra Tech Inc. | 0.45% | 106,981 | $3.8M | Add +0.1% |
| CRAI Cra International Inc. | 0.45% | 20,510 | $3.8M | Reduce -0.7% |
| PLXS Plexus Corp. | 0.44% | 27,593 | $3.7M | Add +0.6% |
| PZZA Papa John's Intl Inc. | 0.43% | 74,589 | $3.7M | Add +0.4% |
| KFY Korn Ferry | 0.42% | 49,547 | $3.6M | Add +0.1% |
| SFM Sprouts Farmers Market Inc. | 0.42% | 22,047 | $3.6M | Add +0.1% |
| IIIN Insteel Industries Inc. | 0.41% | 94,754 | $3.5M | Reduce -0.1% |
| NSSC Napco Security Technologies | 0.41% | 117,032 | $3.5M | Add +14.3% |
| SRCE 1ST Source Corp. | 0.40% | 55,541 | $3.4M | Add +0.8% |
| HCKT The Hackett Group Inc. | 0.40% | 135,380 | $3.4M | Add +0.3% |
| IRMD Iradimed Corp. | 0.40% | 57,344 | $3.4M | Reduce -0.8% |
| AMAL Amalgamated Financial Corp. | 0.40% | 109,735 | $3.4M | Add +0.2% |
| DFIN Donnelley Financial Solution | 0.40% | 54,987 | $3.4M | Add +65.2% |
| RLI Rli Corp. | 0.39% | 46,796 | $3.4M | Add +0.5% |
| HAE Haemonetics Corp. | 0.39% | 45,197 | $3.4M | Add +6.4% |
| CCBG Capital City Bank Group Inc. | 0.39% | 85,121 | $3.3M | Reduce -0.8% |
| NVEC Nve Corp. | 0.38% | 43,812 | $3.2M | Add +0.6% |
| APAM Artisan Partners Asset Ma -A | 0.36% | 69,992 | $3.1M | Add +0.7% |
| EIG Employers Holdings Inc. | 0.35% | 64,296 | $3.0M | Add +0.3% |
| GSL Global Ship Lease Inc. Class A | 0.35% | 113,972 | $3.0M | Add +0.3% |
| NGVT Ingevity Corp. | 0.35% | 69,158 | $3.0M | Add +1.5% |
| CXT Crane NXT Co. | 0.34% | 54,495 | $2.9M | Add +89.3% |
| ALEX Alexander & Baldwin Inc. | 0.34% | 164,690 | $2.9M | Add +0.3% |
| AMSF Amerisafe Inc. | 0.33% | 65,523 | $2.9M | Add +1.7% |
| BLFS Biolife Solutions Inc. | 0.33% | 132,125 | $2.8M | Add +0.4% |
| OPCH Option Care Health Inc. | 0.33% | 86,671 | $2.8M | Add +86.8% |
| APLE Apple Hospitality REIT Inc. | 0.31% | 229,463 | $2.7M | Add +14.3% |
| IA Innovative Solutions & Supp | 0.31% | 191,577 | $2.7M | Reduce -0.3% |
| JBI Janus International Group Inc. | 0.31% | 323,806 | $2.6M | Add +24.4% |
| SHYF The Shyft Group Inc. | 0.30% | 201,544 | $2.5M | Reduce -0.3% |
| INDB Independent Bank Corp. | 0.28% | 38,300 | $2.4M | Add +0.8% |
| MDXG Mimedx Group Inc. | 0.28% | 391,484 | $2.4M | Add +26.2% |
| ACLS Axcelis Technologies Inc. | 0.28% | 34,168 | $2.4M | Add +8.1% |
| ASO Academy Sports & Outdoors Inc. | 0.27% | 52,528 | $2.4M | Add +1.9% |
| AVNT Avient Corp. | 0.26% | 68,342 | $2.2M | Add +3.8% |
| REYN Reynolds Consumer Products I | 0.23% | 92,644 | $2.0M | Add +2.8% |
| HY Hyster-Yale Inc. | 0.23% | 49,188 | $2.0M | Add +3.2% |
| NOG Northern Oil and Gas Inc. | 0.22% | 67,903 | $1.9M | Add +37.5% |
| UTMD Utah Medical Products Inc. | 0.22% | 33,795 | $1.9M | Add +2.6% |
| MLR Miller Industries Inc. | 0.22% | 43,058 | $1.9M | Add +0.5% |
| CAT Caterpillar Inc. | 0.22% | 4,858 | $1.9M | Add +212.0% |
| OII Oceaneering Intl Inc. | 0.22% | 89,822 | $1.9M | Add +1.5% |
| GLD SPDR Gold Shares | 0.21% | 6,000 | $1.8M | No change |
| ATKR Atkore Inc. | 0.20% | 24,651 | $1.7M | Add +5.4% |
Portfolio Sells Q1 2025 → Q2 2025
| DGX Quest Diagnostics Inc. | Sold out | 0.00% | −1.90 |
| KVUE Kenvue Inc. | Sold out | 0.00% | −1.67 |
| DOC Healthpeak Properties Inc. | Reduce -96.5% | 0.04% | −1.29 |
| MCD McDonald's Corp. | Reduce -21.2% | 1.42% | −0.64 |
| AZO AutoZone Inc. | Reduce -2.9% | 2.01% | −0.27 |
| CHRW C.H. Robinson Worldwide Inc. | Reduce -0.2% | 1.59% | −0.23 |
| VREX Varex Imaging Corp. | Sold out | 0.00% | −0.22 |
| MTW Manitowoc Company Inc. | Sold out | 0.00% | −0.21 |
| WRB WR Berkley Corp. | Reduce -4.7% | 1.83% | −0.16 |
| MCFT Mastercraft Boat Holdings Inc. | Sold out | 0.00% | −0.16 |
| KMB Kimberly-Clark Corp. | Reduce -84.3% | 0.02% | −0.16 |
| PSA Public Storage | Reduce -0.0% | 1.44% | −0.13 |
| GIC Global Industrial Co. | Reduce -59.4% | 0.11% | −0.13 |
| COR Cencora Inc. | Reduce -4.5% | 2.20% | −0.09 |
| CBOE Cboe Global Markets Inc. | Reduce -0.4% | 1.72% | −0.08 |
| AMN Amn Healthcare Services Inc. | Sold out | 0.00% | −0.06 |
| SHEL Shell PLC-ADR | Sold out | 0.00% | −0.04 |
| FITB Fifth Third Bancorp | Reduce -0.2% | 1.52% | −0.04 |
| MLI Mueller Industries Inc. | Reduce -4.2% | 0.49% | −0.03 |
| IVV iShares Core S&P 500 ETF | Sold out | 0.00% | −0.03 |
| VOO Vanguard S&P 500 ETF | Sold out | 0.00% | −0.03 |
| GWW WW Grainger Inc. | Reduce -0.0% | 1.76% | −0.03 |
| ORI Old Republic Intl Corp. | Sold out | 0.00% | −0.03 |
| EBAY eBay Inc. | Reduce -3.9% | 1.96% | −0.03 |
| MGEE Mge Energy Inc. | Sold out | 0.00% | −0.03 |
| ABT Abbott Laboratories | Reduce -33.1% | 0.04% | −0.02 |
| FISV Fiserv Inc. | Reduce -9.6% | 0.03% | −0.01 |
| TILE Interface Inc. | Reduce -1.1% | 0.45% | −0.01 |
| UNP Union Pacific Corp. | Reduce -0.4% | 0.10% | −0.01 |
| NEE Nextera Energy Inc. | Reduce -3.0% | 0.05% | −0.01 |
| USB US Bancorp | Reduce -6.7% | 0.07% | −0.00 |
| MKL Markel Group Inc. | Reduce -4.7% | 0.04% | −0.00 |
| FLS Flowserve Corp. | Reduce -0.1% | 1.38% | −0.00 |
| LGND Ligand Pharmaceuticals | Reduce -1.1% | 0.49% | −0.00 |
| FAST Fastenal Co. | Reduce -1.1% | 0.10% | −0.00 |
| MATV Mativ Holdings Inc. | Reduce -0.5% | 0.03% | +0.00 |
| BNY Bank of New York Mellon Corp. | Reduce -1.3% | 1.82% | +0.00 |
| CRAI Cra International Inc. | Reduce -0.7% | 0.45% | +0.00 |
| AYI Acuity Inc. | Reduce -2.2% | 0.05% | +0.00 |
| CCBG Capital City Bank Group Inc. | Reduce -0.8% | 0.39% | +0.01 |
| IRMD Iradimed Corp. | Reduce -0.8% | 0.40% | +0.02 |
| EVR Evercore Inc. Class A | Reduce -0.7% | 0.11% | +0.02 |
| CRK Comstock Resources Inc. | Reduce -18.1% | 0.61% | +0.02 |
| PYPL PayPal Holdings Inc. | Reduce -3.3% | 1.74% | +0.05 |
| CNM Core & Main Inc. Class A | Reduce -0.5% | 0.58% | +0.08 |
| SHYF The Shyft Group Inc. | Reduce -0.3% | 0.30% | +0.09 |
| BELFB Bel Fuse Inc. Class B | Reduce -0.0% | 0.54% | +0.10 |
| IIIN Insteel Industries Inc. | Reduce -0.1% | 0.41% | +0.10 |
| GMS GMS Inc. | Reduce -0.5% | 0.45% | +0.12 |
| LMB Limbach Holdings Inc. | Reduce -22.8% | 0.56% | +0.15 |
Portfolio Buys Q1 2025 → Q2 2025
| GOOGL Alphabet Inc. Class A | Add +3399.9% | 1.89% | +1.84 |
| DXCM Dexcom Inc. | New | 1.71% | +1.71 |
| ABBV Abbvie Inc. | Add +3618.6% | 1.39% | +1.35 |
| MSFT Microsoft Corp. | Add +5.5% | 2.75% | +0.64 |
| AMAT Applied Materials Inc. | Add +20.2% | 1.58% | +0.46 |
| INTC Intel Corp. | Add +100.1% | 0.65% | +0.30 |
| DFIN Donnelley Financial Solution | Add +65.2% | 0.40% | +0.21 |
| APOG Apogee Enterprises Inc. | New | 0.17% | +0.17 |
| CXT Crane NXT Co. | Add +89.3% | 0.34% | +0.16 |
| CAT Caterpillar Inc. | Add +212.0% | 0.22% | +0.16 |
| OPCH Option Care Health Inc. | Add +86.8% | 0.33% | +0.13 |
| MRK Merck & Co. Inc. | New | 0.12% | +0.12 |
| NSSC Napco Security Technologies | Add +14.3% | 0.41% | +0.11 |
| AEIS Advanced Energy Industries | Add +0.2% | 0.46% | +0.11 |
| UPS United Parcel Service Class B | Add +24.2% | 1.47% | +0.09 |
| ACLS Axcelis Technologies Inc. | Add +8.1% | 0.28% | +0.08 |
| JBI Janus International Group Inc. | Add +24.4% | 0.31% | +0.07 |
| ZBRA Zebra Technologies Corp. Class A | Add +2.8% | 1.52% | +0.07 |
| HCA HCA Healthcare Inc. | Add +0.6% | 1.65% | +0.07 |
| TTEK Tetra Tech Inc. | Add +0.1% | 0.45% | +0.06 |
| HAE Haemonetics Corp. | Add +6.4% | 0.39% | +0.06 |
| SPTM SS SPDR P S&P 1500 Comp ETF | Add +4.4% | 0.73% | +0.05 |
| AVY Avery Dennison Corp. | New | 0.04% | +0.04 |
| PZZA Papa John's Intl Inc. | Add +0.4% | 0.43% | +0.04 |
| SHELL PLC F SPONSORED ADR 1 ADR REPS 2 ORD SHS | New | 0.04% | +0.04 |
| NOG Northern Oil and Gas Inc. | Add +37.5% | 0.22% | +0.04 |
| ITW Illinois Tool Works | New | 0.04% | +0.04 |
| MTX Minerals Technologies Inc. | Add +52.7% | 0.20% | +0.04 |
| IBM Intl Business Machines Corp. | Add +57.2% | 0.09% | +0.04 |
| BA The Boeing Co. | New | 0.03% | +0.03 |
| COF Capital One Financial Corp. | New | 0.03% | +0.03 |
| FERG Ferguson Enterprises Inc. | New | 0.03% | +0.03 |
| FIS Fidelity National Info Serv | Add +104.9% | 0.06% | +0.03 |
| NVDA Nvidia Corp. | New | 0.03% | +0.03 |
| COP Conocophillips | New | 0.03% | +0.03 |
| NVEC Nve Corp. | Add +0.6% | 0.38% | +0.03 |
| JPM JPMorgan Chase & Co. | Add +24.7% | 0.10% | +0.03 |
| CARR Carrier Global Corp. | New | 0.03% | +0.03 |
| ATKR Atkore Inc. | Add +5.4% | 0.20% | +0.03 |
| NDAQ Nasdaq Inc. | New | 0.03% | +0.03 |
| GSL Global Ship Lease Inc. Class A | Add +0.3% | 0.35% | +0.03 |
| SPY SS SPDR S&P 500 ETF Trust-US | Add +19.7% | 0.13% | +0.02 |
| GE General Electric | New | 0.02% | +0.02 |
| WMT Walmart Inc. | New | 0.02% | +0.02 |
| DIS The Walt Disney Co. | New | 0.02% | +0.02 |
| AMZN Amazon.com Inc. | Add +30.6% | 0.08% | +0.02 |
| HDSN Hudson Technologies Inc. | Add +60.2% | 0.05% | +0.02 |
| APAM Artisan Partners Asset Ma -A | Add +0.7% | 0.36% | +0.02 |
| NGVT Ingevity Corp. | Add +1.5% | 0.35% | +0.01 |
| OTCM Otc Markets Group Inc. Class A | Add +0.0% | 0.09% | +0.01 |
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 226 | $1.0B | IEFA, AAPL, GOOGL, AMAT, AVGO |
| Q1 2026 | 217 | $953.4M | IEFA, AAPL, GOOGL, JNJ, V |
| Q4 2025 | 214 | $900.5M | AAPL, GOOGL, MSFT, CHRW, JNJ |
| Q3 2025 | 176 | $849.2M | AAPL, MSFT, GOOGL, AVGO, COR |
| Q2 2025 | 217 | $856.1M | MSFT, TT, COR, AAPL, AMCR |
| Q1 2025 | 211 | $798.8M | AAPL, AMCR, COR, AZO, MSFT |
| Q4 2024 | 217 | $822.7M | AAPL, MSFT, AMCR, BNY, PYPL |
| Q3 2024 | 195 | $841.7M | AAPL, TT, MSFT, PYPL, BNY |
| Q2 2024Amended | 196 | $849.2M | IEFA, AAPL, MSFT, TT, AMAT |
| Q1 2024 | 197 | $881.0M | IEFA, ALSN, MSFT, TT, COR |