ACK Asset Management LLC
- SEC CIK
- 0001510940
- Latest filing
- Aug 13, 2026
BLDR holding history
Builders FirstSource, Inc. in every 13F filed by ACK Asset Management LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
BLDR overviewAll 13F holders of BLDRFull Q2 2026 holdings
- Shares (Q2 2023)
- 0
- Sold out in Q2 2023
- Value
- $0
- % of portfolio
- 0.0%
- Quarters held
- 9
- Since Q1 2021
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2023 | 0 | $0 | 0.0% | −70,033−100.0% | Sold out | Holders |
| Q1 2023 | 70,033 | $6.22M | 0.9% | −31,167−30.8% | Reduced | Holders |
| Q4 2022 | 101,200 | $6.57M | 1.2% | −78,800−43.8% | Reduced | Holders |
| Q3 2022 | 180,000 | $10.6M | 2.8% | −180,000−50.0% | Reduced | Holders |
| Q2 2022 | 360,000 | $19.3M | 5.4% | −190,559−34.6% | Reduced | Holders |
| Q1 2022 | 550,559 | $35.5M | 7.7% | 00.0% | Unchanged | Holders |
| Q4 2021 | 550,559 | $11.0M | 2.6% | −28,000−4.8% | Reduced | Holders |
| Q3 2021 | 578,559 | $10.7M | 3.1% | −117,694−16.9% | Reduced | Holders |
| Q2 2021 | 696,253 | $10.4M | 3.8% | −75,000−9.7% | Reduced | Holders |
| Q1 2021 | 771,253 | $11.4M | 4.5% | – | – | Holders |
Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.