POSTROCK PARTNERS LLC — 13F Holdings & Portfolio
CIK 2053668 · latest 13F-HR filed 2026-05-06
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
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AUM
$216.2M
Long-equity book
Holdings
82
Distinct positions
Period
2026-03-31
Filed 2026-05-06
Q/Q Activity
+5 / −3 / ↑14 / ↓38
vs 2025-12-31
Firm Profile & Key People
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- FASTENAL CO$2.1M +15.6%
- ROSS STORES INC$629.7K +20.3%
- WALMART INC$294.5K +11.6%
- MICRON TECHNOLOGY INC$283.1K +18.0%
- MARATHON PETE CORP$209.2K +50.1%
Top Trims
- APPLE INC-$2.6M -6.6%
- BOOKING HOLDINGS INC-$2.3M -21.4%
- QUALCOMM INC-$1.5M -24.7%
- VISA INC-$1.4M -13.8%
- ALPHABET INC-$1.2M -8.1%
New Positions
- BNY MELLON ETF TRUST II$624.2K
- L3HARRIS TECHNOLOGIES INC$228.5K
- EQT CORP$225.3K
- AT&T INC$216.6K
- ENSIGN GROUP INC$210.8K
Exited Positions
- US BANCORP DEL$593.6K
- SALESFORCE INC$239.5K
- WEST PHARMACEUTICAL SVSC INC$212.1K
All Holdings
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | APPLE INC | AAPL | 037833100 | $36.5M | 16.86% | 143,624 | SH |
| 2 | BERKSHIRE HATHAWAY INC DEL | BRK.A | 084670108 | $31.6M | 14.62% | 44 | SH |
| 3 | FASTENAL CO | FAST | 311900104 | $15.7M | 7.27% | 338,720 | SH |
| 4 | ALPHABET INC | GOOGL | 02079K305 | $13.8M | 6.41% | 48,158 | SH |
| 5 | ISHARES TR | IVV | 464287200 | $11.4M | 5.28% | 17,483 | SH |
| 6 | VISA INC | V | 92826C839 | $8.6M | 3.99% | 28,506 | SH |
| 7 | BOOKING HOLDINGS INC | BKNG | 09857L108 | $8.3M | 3.83% | 1,966 | SH |
| 8 | ALPHABET INC | GOOG | 02079K107 | $8.0M | 3.70% | 27,890 | SH |
| 9 | NVIDIA CORPORATION | NVDA | 67066G104 | $7.8M | 3.63% | 44,988 | SH |
| 10 | QUALCOMM INC | QCOM | 747525103 | $4.6M | 2.15% | 36,024 | SH |
| 11 | ROSS STORES INC | ROST | 778296103 | $3.7M | 1.73% | 17,257 | SH |
| 12 | AMAZON COM INC | AMZN | 023135106 | $3.7M | 1.71% | 17,711 | SH |
| 13 | WALMART INC | WMT | 931142103 | $2.8M | 1.32% | 22,883 | SH |
| 14 | HEICO CORP NEW | HEI | 422806109 | $2.7M | 1.26% | 9,922 | SH |
| 15 | ISHARES TR | IBMP | 46435U283 | $2.5M | 1.14% | 96,626 | SH |
| 16 | COGNIZANT TECHNOLOGY SOLUTIO | CTSH | 192446102 | $2.4M | 1.12% | 39,522 | SH |
| 17 | UBER TECHNOLOGIES INC | UBER | 90353T100 | $2.3M | 1.09% | 32,648 | SH |
| 18 | S&P GLOBAL INC | SPGI | 78409V104 | $2.2M | 1.02% | 5,205 | SH |
| 19 | VERISK ANALYTICS INC | VRSK | 92345Y106 | $2.0M | 0.92% | 10,521 | SH |
| 20 | TRACTOR SUPPLY CO | TSCO | 892356106 | $1.9M | 0.88% | 42,225 | SH |
| 21 | MICRON TECHNOLOGY INC | MU | 595112103 | $1.9M | 0.86% | 5,493 | SH |
| 22 | ADVANCED MICRO DEVICES INC | AMD | 007903107 | $1.9M | 0.86% | 9,109 | SH |
| 23 | VEEVA SYS INC | VEEV | 922475108 | $1.8M | 0.85% | 10,470 | SH |
| 24 | GRAND CANYON ED INC | LOPE | 38526M106 | $1.8M | 0.82% | 10,385 | SH |
| 25 | MICROSOFT CORP | MSFT | 594918104 | $1.7M | 0.80% | 4,683 | SH |
| 26 | RB GLOBAL INC | RBA | 74935Q107 | $1.7M | 0.79% | 17,780 | SH |
| 27 | UNITED PARCEL SVCS INC | UPS | 911312106 | $1.5M | 0.68% | 14,916 | SH |
| 28 | ROLLINS INC | ROL | 775711104 | $1.5M | 0.67% | 27,169 | SH |
| 29 | SCHWAB CHARLES CORP | SCHW | 808513105 | $1.4M | 0.66% | 15,078 | SH |
| 30 | STATE STR SPDR S&P 500 ETF T | SPY | 78462F103 | $1.2M | 0.54% | 1,800 | SH |
| 31 | BIO-TECHNE CORP | TECH | 09073M104 | $1.1M | 0.51% | 21,006 | SH |
| 32 | BLACKROCK INC | BLK | 09290D101 | $1.1M | 0.50% | 1,134 | SH |
| 33 | PALO ALTO NETWORKS INC | PANW | 697435105 | $1.1M | 0.50% | 6,793 | SH |
| 34 | AMERICAN TOWER CORP | AMT | 03027X100 | $1.0M | 0.48% | 6,015 | SH |
| 35 | COSTCO WHOLESALE CORPORATION | COST | 22160K105 | $1.0M | 0.48% | 1,038 | SH |
| 36 | JPMORGAN CHASE & CO | JPM | 46625H100 | $1.0M | 0.48% | 3,502 | SH |
| 37 | COPART INC | CPRT | 217204106 | $1.0M | 0.46% | 30,180 | SH |
| 38 | ISHARES TR | IBMO | 46435U259 | $939.5K | 0.43% | 36,656 | SH |
| 39 | ISHARES TR | SUB | 464288158 | $894.6K | 0.41% | 8,400 | SH |
| 40 | ISHARES TR | EMB | 464288281 | $845.4K | 0.39% | 9,000 | SH |
| 41 | MOTOROLA SOLUTIONS INC | MSI | 620076307 | $700.9K | 0.32% | 1,615 | SH |
| 42 | ISHARES TR | AGG | 464287226 | $673.4K | 0.31% | 6,784 | SH |
| 43 | SYNOPSYS INC | SNPS | 871607107 | $667.3K | 0.31% | 1,683 | SH |
| 44 | MARATHON PETE CORP | MPC | 56585A102 | $626.3K | 0.29% | 2,565 | SH |
| 45 | BNY MELLON ETF TRUST II | BMOP | 05613H803 | $624.2K | 0.29% | 25,342 | SH |
| 46 | ISHARES TR | IWM | 464287655 | $621.5K | 0.29% | 2,506 | SH |
| 47 | ISHARES TR | IWR | 464287499 | $619.9K | 0.29% | 6,376 | SH |
| 48 | ISHARES TR | IJR | 464287804 | $596.7K | 0.28% | 4,800 | SH |
| 49 | ISHARES TR | IVE | 464287408 | $583.8K | 0.27% | 2,765 | SH |
| 50 | DANAHER CORP DEL | DHR | 235851102 | $568.2K | 0.26% | 2,997 | SH |
Filing History
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-06 | $216.2M | 82 | 0001951757-26-000777 |
| 2025-12-31 | 2026-01-16 | $230.2M | 80 | 0001951757-26-000192 |