CIK: 0002053668
Total reported value
$216.2M
Reporting period: 2026-03-31 · Number of holdings: 82
POSTROCK PARTNERS LLC disclosed 82 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $216.2M and a quarterly turnover rate of 11.5%.
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Postrock Partners LLC's disclosed holdings carry a Herfindahl concentration index of 0.071 — mathematically equivalent to about 14 equally-sized positions, well below its 82 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes vary widely across the portfolio (a coefficient of variation of 2.20), with a handful of outsized bets alongside many smaller positions.
Recent activity leans toward adding more aggressively to already-large existing positions than to newly initiated ones (a 3.9 percentage-point tilt) — a pattern consistent with a momentum-following approach.
Add FAST
0.0% $2.1M
Trim BKNG
0.0% -$2.3M
Trim QCOM
0.0% -$1.5M
Add ROST
0.0% $629.7K
Trim V
0.0% -$1.4M
Trim CTSH
0.0% -$855.7K
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | AAPL | Apple INC | Stock-Tech | 16.86% | -0.10% | +0.03% | |
| 2 | BRK-A | Berkshire Hathaway Inc-cl A | Stock-Other | 14.62% | +0.19% | — | |
| 3 | FAST | Fastenal Co | Stock-Industrials | 7.27% | +1.36% | — | |
| 4 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 6.41% | -0.14% | — | |
| 5 | IVV | Ishares Core S&p 500 ETF | ETF-Large Cap & Growth | 5.28% | — | +4.34% | |
| 6 | V | Visa Inc-class A Shares | Stock-Financials | 3.99% | -0.35% | — | |
| 7 | BKNG | Booking Holdings INC | Stock-Consumer Disc | 3.83% | -0.74% | — | |
| 8 | GOOG | Alphabet Inc-cl C | Stock-Comm Services | 3.70% | -0.10% | — | |
| 9 | NVDA | Nvidia CORP | Stock-Tech | 3.63% | -0.02% | — | |
| 10 | QCOM | Qualcomm INC | Stock-Tech | 2.15% | -0.53% | — | |
| 11 | ROST | Ross Stores INC | Stock-Consumer Disc | 1.73% | +0.38% | — | |
| 12 | AMZN | Amazon.com INC | Stock-Consumer Disc | 1.71% | -0.07% | — | |
| 13 | WMT | Walmart INC | Stock-Consumer Staples | 1.32% | +0.21% | — | |
| 14 | HEI | Heico CORP | Stock-Industrials | 1.26% | -0.13% | — | |
| 15 | IBMP | Ishares Ibonds Dec 2027 Term | ETF-Other | 1.14% | — | +0.02% | |
| 16 | CTSH | Cognizant Tech Solutions-a | Stock-Tech | 1.12% | -0.31% | — | |
| 17 | UBER | Uber Technologies INC | Stock-Industrials | 1.09% | -0.07% | — | |
| 18 | SPGI | S&p Global INC | Stock-Financials | 1.02% | -0.16% | — | |
| 19 | VRSK | Verisk Analytics INC | Stock-Industrials | 0.92% | -0.10% | — | |
| 20 | TSCO | Tractor Supply Company | Stock-Consumer Disc | 0.88% | -0.04% | — | |
| 21 | MU | Micron Technology INC | Stock-Tech | 0.86% | +0.18% | -0.31% | |
| 22 | AMD | Advanced Micro Devices | Stock-Tech | 0.86% | +0.01% | — | |
| 23 | VEEV | Veeva Systems Inc-class A | Stock-Healthcare | 0.85% | -0.17% | — | |
| 24 | LOPE | Grand Canyon Education INC | Stock-Consumer Staples | 0.82% | — | -0.41% | |
| 25 | MSFT | Microsoft CORP | Stock-Tech | 0.80% | -0.18% | — | |
| 26 | RBA | Rb Global INC | Stock-Industrials | 0.79% | — | — | |
| 27 | UPS | United Parcel Service-cl B | Stock-Industrials | 0.68% | — | — | |
| 28 | ROL | Rollins INC | Stock-Consumer Disc | 0.67% | -0.04% | — | |
| 29 | SCHW | Schwab (charles) CORP | Stock-Financials | 0.66% | +0.01% | — | |
| 30 | SPY | Ss Spdr S&p 500 ETF Trust-us | ETF-Large Cap & Growth | 0.54% | -0.04% | -8.35% | |
| 31 | TECH | Bio-techne CORP | Stock-Healthcare | 0.51% | -0.03% | -0.38% | |
| 32 | BLK | Blackrock INC | Stock-Financials | 0.50% | -0.03% | — | |
| 33 | PANW | Palo Alto Networks INC | Stock-Tech | 0.50% | -0.04% | +0.82% | |
| 34 | AMT | American Tower CORP | Stock-Real Estate | 0.48% | — | — | |
| 35 | COST | Costco Wholesale CORP | Stock-Consumer Staples | 0.48% | +0.09% | — | |
| 36 | JPM | Jpmorgan Chase & Co | Stock-Financials | 0.48% | -0.01% | — | |
| 37 | CPRT | Copart INC | Stock-Industrials | 0.46% | -0.05% | — | |
| 38 | IBMO | Ishares Ibonds Dec 2026 Term | ETF-Other | 0.43% | — | +0.96% | |
| 39 | SUB | Ishares Short-term National | ETF-Other | 0.41% | — | — | |
| 40 | EMB | Ishares Jp Morgan Usd Emergi | ETF-Other | 0.39% | — | — | |
| 41 | MSI | Motorola Solutions INC | Stock-Tech | 0.32% | +0.05% | -0.31% | |
| 42 | AGG | Ishares Core U.s. Aggregate | ETF-Other | 0.31% | — | — | |
| 43 | SNPS | Synopsys INC | Stock-Tech | 0.31% | -0.03% | — | |
| 44 | MPC | Marathon Petroleum CORP | Stock-Energy | 0.29% | +0.11% | — | |
| 45 | BMOP | Bny Meln Munipl Opp ETF | ETF-Other | 0.29% | +0.29% | NEW | |
| 46 | IWM | Ishares Russell 2000 ETF | ETF-Small Cap | 0.29% | — | — | |
| 47 | IWR | Ishares Russell Mid-cap ETF | ETF-Other | 0.29% | — | — | |
| 48 | IJR | Ishares Core S&p Small-cap E | ETF-Small Cap | 0.28% | — | — | |
| 49 | IVE | Ishares S&p 500 Value ETF | ETF-Large Cap & Growth | 0.27% | — | — | |
| 50 | DHR | Danaher CORP | Stock-Healthcare | 0.26% | -0.04% | — |
Performance for Q3 2026
+6.4%
Performance Last 4 Quarters
+27.4%
Based on 71% of reported portfolio value with available pricing
Postrock Partners LLC's most significant position changes for 2026-03-31: New buy: Bny Meln Munipl Opp ETF (BMOP); Sold out: US Bancorp (USB); Sold out: Salesforce INC (CRM); New buy: L3harris Technologies INC (LHX); New buy: Eqt CORP (EQT).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | FAST | Fastenal Co | +1.4% | — | Unchanged |
| 2 | ROST | Ross Stores INC | +0.4% | — | Unchanged |
| 3 | WMT | Walmart INC | +0.2% | — | Unchanged |
| 4 | BRK-A | Berkshire Hathaway Inc-cl A | +0.2% | — | Unchanged |
| 5 | MU | Micron Technology INC | +0.2% | -0.31% | Trim |
| 6 | MPC | Marathon Petroleum CORP | +0.1% | — | Unchanged |
| 7 | COST | Costco Wholesale CORP | +0.1% | — | Unchanged |
| 8 | CGNX | Cognex CORP | +0.1% | — | Unchanged |
| 9 | GEV | GE Vernova INC | +0.1% | — | Unchanged |
| 10 | MSI | Motorola Solutions INC | +0.1% | -0.31% | Trim |
| 11 | AMAT | Applied Materials INC | +0.1% | — | Unchanged |
| 12 | AMD | Advanced Micro Devices | 0% | — | Unchanged |
| 13 | SCHW | Schwab (charles) CORP | 0% | — | Unchanged |
| 14 | RBA | Rb Global INC | — | — | Unchanged |
| 15 | JPM | Jpmorgan Chase & Co | 0% | — | Unchanged |
| 16 | NVDA | Nvidia CORP | 0% | — | Unchanged |
| 17 | TECH | Bio-techne CORP | 0% | -0.38% | Trim |
| 18 | SNPS | Synopsys INC | 0% | — | Unchanged |
| 19 | BLK | Blackrock INC | 0% | — | Unchanged |
| 20 | TSCO | Tractor Supply Company | 0% | — | Unchanged |
| 21 | ROL | Rollins INC | 0% | — | Unchanged |
| 22 | SPY | Ss Spdr S&p 500 ETF Trust-us | 0% | -8.35% | Trim |
| 23 | PANW | Palo Alto Networks INC | 0% | +0.82% | Add |
| 24 | DHR | Danaher CORP | 0% | — | Unchanged |
| 25 | INTU | Intuit INC | 0% | — | Unchanged |
| 26 | CPRT | Copart INC | -0.1% | — | Unchanged |
| 27 | AMZN | Amazon.com INC | -0.1% | — | Unchanged |
| 28 | UBER | Uber Technologies INC | -0.1% | — | Unchanged |
| 29 | AAPL | Apple INC | -0.1% | +0.03% | Add |
| 30 | GOOG | Alphabet Inc-cl C | -0.1% | — | Unchanged |
| 31 | VRSK | Verisk Analytics INC | -0.1% | — | Unchanged |
| 32 | NOW | Servicenow INC | -0.1% | -0.20% | Trim |
| 33 | CSGP | Costar Group INC | -0.1% | — | Unchanged |
| 34 | HEI | Heico CORP | -0.1% | — | Unchanged |
| 35 | GOOGL | Alphabet Inc-cl A | -0.1% | — | Unchanged |
| 36 | SPGI | S&p Global INC | -0.2% | — | Unchanged |
| 37 | VEEV | Veeva Systems Inc-class A | -0.2% | — | Unchanged |
| 38 | MSFT | Microsoft CORP | -0.2% | — | Unchanged |
| 39 | CTSH | Cognizant Tech Solutions-a | -0.3% | — | Unchanged |
| 40 | V | Visa Inc-class A Shares | -0.4% | — | Unchanged |
| 41 | QCOM | Qualcomm INC | -0.5% | — | Unchanged |
| 42 | BKNG | Booking Holdings INC | -0.7% | — | Unchanged |
| 43 | BMOP | Bny Meln Munipl Opp ETF | — | NEW | New buy |
| 44 | USB | US Bancorp | — | EXIT | Sold out |
| 45 | CRM | Salesforce INC | — | EXIT | Sold out |
| 46 | LHX | L3harris Technologies INC | — | NEW | New buy |
| 47 | EQT | Eqt CORP | — | NEW | New buy |
| 48 | T | At&t INC | — | NEW | New buy |
| 49 | WST | West Pharmaceutical Services | — | EXIT | Sold out |
| 50 | ENSG | Ensign Group Inc/the | — | NEW | New buy |
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-05-06 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-01-16 | 13F-HR | View on EDGAR |
| 2025-09-30 | 2025-10-28 | 13F-HR | View on EDGAR |
| 2025-06-30 | 2025-07-15 | 13F-HR | View on EDGAR |
| 2025-03-31 | 2025-05-02 | 13F-HR | View on EDGAR |
| 2024-12-31 | 2025-02-10 | 13F-HR | View on EDGAR |
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