First Manhattan Co
- SEC CIK
- 0000728083
- Latest filing
- Aug 14, 2026
WTM holding history
White Mountains Insurance Group Ltd in every 13F filed by First Manhattan Co, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
WTM overviewAll 13F holders of WTMFull Q2 2026 holdings
- Shares (Q2 2026)
- 100
- Value
- $207.3K
- % of portfolio
- <0.1%
- Quarters held
- 19
- Since Q1 2021
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2026 | 100 | $207.3K | <0.1% | −15−13.0% | Reduced | Holders |
| Q1 2026 | 115 | $252.7K | <0.1% | +15+15.0% | Added | Holders |
| Q4 2025 | 100 | $207.8K | <0.1% | +100 | New | Holders |
| Q3 2025 | 0 | $0 | 0.0% | −401−100.0% | Sold out | Holders |
| Q2 2025 | 401 | $720.1K | <0.1% | −714−64.0% | Reduced | Holders |
| Q1 2025 | 1,115 | $2.15M | <0.1% | 00.0% | Unchanged | Holders |
| Q4 2024 | 1,115 | $4.05M | <0.1% | +1,115 | New | Holders |
| Q2 2024 | 0 | $0 | 0.0% | −46−100.0% | Sold out | Holders |
| Q1 2024 | 46 | $82.5K | <0.1% | −10−17.9% | Reduced | Holders |
| Q4 2023 | 56 | $84.3K | <0.1% | 00.0% | Unchanged | Holders |
| Q3 2023 | 56 | $83.8K | <0.1% | 00.0% | Unchanged | Holders |
| Q2 2023 | 56 | $77.8K | <0.1% | −100−64.1% | Reduced | Holders |
| Q1 2023 | 156 | $214.9K | <0.1% | 00.0% | Unchanged | Holders |
| Q4 2022 | 156 | $220.6K | <0.1% | 00.0% | Unchanged | Holders |
| Q3 2022 | 156 | $203.0K | <0.1% | 00.0% | Unchanged | Holders |
| Q2 2022 | 156 | $194.0K | <0.1% | 00.0% | Unchanged | Holders |
| Q1 2022 | 156 | $177.0K | <0.1% | 00.0% | Unchanged | Holders |
| Q4 2021 | 156 | $158.0K | <0.1% | 00.0% | Unchanged | Holders |
| Q3 2021 | 156 | $166.0K | <0.1% | −4−2.5% | Reduced | Holders |
| Q2 2021 | 160 | $183.0K | <0.1% | +4+2.6% | Added | Holders |
| Q1 2021 | 156 | $173.0K | <0.1% | – | – | Holders |
Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.