Institutional Manager · CIK 0000884566
Fenimore Asset Management Inc
Cobleskill, NY · File #028-03130
Latest AUM
$4.80B
Positions
92
Top-10 Concentration
41.7%
Filings
9
Portfolio Value Over Time
2024-03
2024-06
2024-09
2024-12
2025-03
2025-06
2025-09
2025-12
Biggest QoQ Changes
Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.
| Action | Issuer | Ticker / CUSIP | Δ Shares | Flow ($) | Price Effect |
|---|---|---|---|---|---|
| ADD | Brookfield Corp | 11271J107 | +1,267,580 | +$58.2M | -$58.4M |
| REDUCE | Amphenol Corp. | 032095101 | -384,450 | -$52.0M | +$23.4M |
| ADD | Landstar System, Inc. | LSTR | +145,035 | +$20.8M | +$7.2M |
| NEW | Novanta Inc | NOVTU | +118,553 | +$14.1M | $0 |
| EXITED | Cass Information Systems Inc. | 14808P109 | -340,544 | -$13.4M | $0 |
| REDUCE | Ross Stores, Inc. | ROST | -73,307 | -$13.2M | +$44.5M |
| ADD | Verisk Analytics Inc. | VRSK | +50,450 | +$11.3M | -$3.8M |
| REDUCE | IDEX Corporation | 45167R104 | -55,476 | -$9.9M | +$13.3M |
| REDUCE | Pinnacle Financial Partners, I | 72346Q104 | -103,290 | -$9.9M | +$1.5M |
| ADD | Floor & Decor Holdings | FND | +126,730 | +$7.7M | -$2.2M |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 202592 pos · $4.80B
- 13F HOLDINGS REPORTQ/E Sep 202591 pos · $4.99B
- 13F HOLDINGS REPORTQ/E Jun 202590 pos · $5.01B
- 13F HOLDINGS REPORTQ/E Mar 202591 pos · $4.72B
- 13F HOLDINGS REPORTQ/E Dec 202494 pos · $4.76B
- 13F HOLDINGS REPORTQ/E Sep 202497 pos · $4.96B
- 13F HOLDINGS REPORTQ/E Jun 202496 pos · $4.57B
- 13F HOLDINGS REPORTQ/E Mar 202497 pos · $4.73B
- 13F HOLDINGS REPORTQ/E Dec 2023100 pos · $3.85B
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | Ross Stores, Inc. | ROST | 1,531,966 | $276.0M | 6.13% |
| 2 | Amphenol Corp. | 032095101 | 1,665,809 | $225.1M | 5.00% |
| 3 | Vulcan Materials | 929160109 | 666,670 | $190.1M | 4.23% |
| 4 | Markel Corporation | MKL | 88,266 | $189.7M | 4.22% |
| 5 | Stryker Corporation | SYK | 525,378 | $184.7M | 4.10% |
| 6 | Brookfield Corp | 11271J107 | 3,842,656 | $176.3M | 3.92% |
| 7 | Brown & Brown, Inc. | BRO | 2,183,511 | $174.0M | 3.87% |
| 8 | CDW Corporation | CDW | 1,150,567 | $156.7M | 3.48% |
| 9 | Trane Technologies PLC | TT | 395,638 | $154.0M | 3.42% |
| 10 | Fastenal Co | FAST | 3,752,643 | $150.6M | 3.35% |
| 11 | IDEX Corporation | 45167R104 | 819,203 | $145.8M | 3.24% |
| 12 | Analog Devices Inc | ADI | 494,546 | $134.1M | 2.98% |
| 13 | Keysight Technologies Inc. | KEYS | 633,773 | $128.8M | 2.86% |
| 14 | Progressive Corp. | 743315103 | 559,924 | $127.5M | 2.83% |
| 15 | Exlservice Holdings Inc. | EXLS | 2,773,142 | $117.7M | 2.62% |
| 16 | AutoZone, Inc. | AZO | 32,830 | $111.3M | 2.47% |
| 17 | HEICO Corp. Class A | HEI-A | 436,906 | $110.3M | 2.45% |
| 18 | Booking Holdings Inc. | BKNG | 19,994 | $107.1M | 2.38% |
| 19 | Illinois Tool Works Inc. | 452308109 | 395,628 | $97.4M | 2.17% |
| 20 | Microchip Technology Incorpora | MCHPP | 1,444,945 | $92.1M | 2.05% |