Institutional Manager · CIK 0000024386
COOKE & BIELER LP
PHILADELPHIA, PA · File #028-00268
Latest AUM
$9.59B
Positions
150
Top-10 Concentration
34.4%
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 |
|---|---|---|---|---|---|
| REDUCE | Open Text Corp | OTEX | -3,076,710 | -$100.2M | -$20.5M |
| EXITED | Flowers Foods Inc | 343498101 | -5,463,003 | -$71.3M | $0 |
| REDUCE | MKS Inc. | MKSI | -355,174 | -$56.8M | +$47.6M |
| EXITED | Baxter International Inc | 071813109 | -2,200,860 | -$50.1M | $0 |
| NEW | Middleby Corp | MIDD | +323,623 | +$48.1M | $0 |
| EXITED | Air Lease Corp | 00912X302 | -719,812 | -$45.8M | $0 |
| REDUCE | Arrow Electronics | 042735100 | -335,156 | -$36.9M | -$5.4M |
| REDUCE | American Woodmark | AMWD | -669,844 | -$36.1M | -$12.0M |
| NEW | Aramark | ARMK | +867,000 | +$32.0M | $0 |
| NEW | MasterBrand Inc. | MBC | +2,831,036 | +$31.3M | $0 |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 2025150 pos · $9.59B
- 13F HOLDINGS REPORTQ/E Sep 2025144 pos · $9.68B
- 13F HOLDINGS REPORTQ/E Jun 2025147 pos · $9.99B
- 13F HOLDINGS REPORTQ/E Mar 2025147 pos · $9.99B
- 13F HOLDINGS REPORTQ/E Dec 2024144 pos · $10.38B
- 13F HOLDINGS REPORTQ/E Sep 2024138 pos · $11.01B
- 13F HOLDINGS REPORTQ/E Jun 2024140 pos · $10.39B
- 13F HOLDINGS REPORTQ/E Mar 2024144 pos · $10.82B
- 13F HOLDINGS REPORTQ/E Dec 2023154 pos · $10.26B
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | Gildan Activewear | GIL | 5,998,539 | $374.7M | 6.04% |
| 2 | RenaissanceRe | RNR-PG | 881,841 | $247.9M | 4.00% |
| 3 | Fidelity National Financial In | FNF | 4,075,424 | $222.5M | 3.59% |
| 4 | White Mountains Insurance Grou | G9618E107 | 106,579 | $221.5M | 3.57% |
| 5 | RB Global Inc | RBA | 1,977,004 | $203.4M | 3.28% |
| 6 | Crown Castle Inc | CCI | 2,216,797 | $197.0M | 3.17% |
| 7 | Arch Capital Group | G0450A105 | 2,051,193 | $196.8M | 3.17% |
| 8 | Becton Dickinson and Company | BDX | 844,571 | $163.9M | 2.64% |
| 9 | MKS Inc. | MKSI | 966,703 | $154.5M | 2.49% |
| 10 | Omnicom Group | OMC | 1,858,712 | $150.1M | 2.42% |
| 11 | Teleflex Incorporated | TFX | 1,183,176 | $144.4M | 2.33% |
| 12 | MSA Safety | MNESP | 899,030 | $144.0M | 2.32% |
| 13 | Labcorp Holdings | LH | 560,016 | $140.5M | 2.26% |
| 14 | Glacier Bancorp Inc | GBCI | 3,049,334 | $134.3M | 2.16% |
| 15 | Essent Group Ltd | ESNT | 1,952,006 | $126.9M | 2.04% |
| 16 | Valvoline Inc | VVV | 4,281,095 | $124.4M | 2.00% |
| 17 | Hasbro | HAS | 1,515,718 | $124.3M | 2.00% |
| 18 | Charles River Laboratories | 159864107 | 607,565 | $121.2M | 1.95% |
| 19 | PPG Industries | 693506107 | 1,167,672 | $119.6M | 1.93% |
| 20 | Warner Music Group Corp | WMG | 3,878,498 | $119.0M | 1.92% |