- Quarter end
- 30 Jun 2025
- the date the book describes
- Filed
- 27 Oct 2026
- latest of these filings; the earliest 6 Aug 2025
- Managers listing it
- 17
- at least, of 95 tracked, among listed positions
- Comparable managers
- 95
- filed both Q1 2025 and Q2 2025; 11 listed it in both
- Shares listed
- 22,060,452
- combined, among listed positions
- Reported value
- $2.6bn
- combined, at the quarter end
Among the 95 comparable managers: 12 buyers (opened or added shares) and 5 sellers (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.
Managers listing BLDR in Q2 2025
17 of 17 holders
Largest increases and reductions, by shares
Increases
- Fidelity (FMR LLC)existing position · 11,626,978 shares now+903,502
- Janus Henderson Group Ltdexisting position · 859,258 shares now+441,808
- Two Sigma Investments LPnew position · 278,410 shares now+278,410
- Egerton Capital UK LLPnew position · 262,628 shares now+262,628
- Moore Capital Management LPnew position · 219,790 shares now+219,790
Reductions
- AllianceBernstein LPexisting position · 624,892 shares now-393,150
- Schonfeld Strategic Advisors LLCexisting position · 166,335 shares now-105,351
- Hudson Bay Capital Management LPexisting position · 55,499 shares now-75,742
- Baillie Gifford & Coexisting position · 1,524,282 shares now-36,693
New positions and exits
New (3)
Exited (1)
- Ruane Cunniff & Goldfarb LPwas $587k
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q4 2013 | 1 | $78k | n.a. | n.a. |
| Q2 2015 | 1 | $12m | n.a. | n.a. |
| Q3 2015 | 3 | $4.3m | n.a. | n.a. |
| Q4 2015 | 1 | $3.8m | n.a. | n.a. |
| Q1 2016 | 2 | $13m | n.a. | n.a. |
| Q2 2016 | 4 | $78m | n.a. | n.a. |
| Q3 2016 | 3 | $59m | n.a. | n.a. |
| Q4 2016 | 1 | $55m | n.a. | n.a. |
| Q1 2017 | 6 | $118m | n.a. | n.a. |
| Q2 2017 | 3 | $118m | n.a. | n.a. |
| Q3 2017 | 6 | $175m | n.a. | n.a. |
| Q4 2017 | 5 | $144m | n.a. | n.a. |
| Q1 2018 | 9 | $222m | n.a. | n.a. |
| Q2 2018 | 2 | $109m | n.a. | n.a. |
| Q3 2018 | 5 | $128m | n.a. | n.a. |
| Q4 2018 | 2 | $95m | n.a. | n.a. |
| Q1 2019 | 4 | $127m | n.a. | n.a. |
| Q2 2019 | 5 | $42m | n.a. | n.a. |
| Q3 2019 | 6 | $115m | n.a. | n.a. |
| Q4 2019 | 11 | $301m | n.a. | n.a. |
| Q1 2020 | 8 | $136m | n.a. | n.a. |
| Q2 2020 | 7 | $165m | n.a. | n.a. |
| Q3 2020 | 9 | $128m | n.a. | n.a. |
| Q4 2020 | 6 | $430m | n.a. | n.a. |
| Q1 2021 | 9 | $1.4bn | n.a. | n.a. |
| Q2 2021 | 13 | $1.6bn | n.a. | n.a. |
| Q3 2021 | 11 | $1.9bn | n.a. | n.a. |
| Q4 2021 | 18 | $3.1bn | n.a. | n.a. |
| Q1 2022 | 18 | $2.2bn | n.a. | n.a. |
| Q2 2022 | 13 | $1.5bn | n.a. | n.a. |
| Q3 2022 | 14 | $2.0bn | n.a. | n.a. |
| Q4 2022 | 14 | $1.9bn | n.a. | n.a. |
| Q1 2023 | 18 | $2.7bn | n.a. | n.a. |
| Q2 2023 | 20 | $3.0bn | n.a. | n.a. |
| Q3 2023 | 17 | $2.6bn | n.a. | n.a. |
| Q4 2023 | 24 | $3.4bn | 13 | 10 |
| Q1 2024 | 20 | $3.9bn | 5 | 13 |
| Q2 2024 | 18 | $2.6bn | 11 | 7 |
| Q3 2024 | 19 | $4.7bn | 11 | 8 |
| Q4 2024 | 15 | $3.1bn | 8 | 9 |
| Q1 2025 | 15 | $2.9bn | 9 | 4 |
| Q2 2025 | 17 | $2.6bn | 12 | 5 |
| Q3 2025 | 12 | $2.4bn | 5 | 8 |
| Q4 2025 | 14 | $713m | 26 | 12 |
| Q1 2026 | 14 | $777m | 20 | 18 |
| Q2 2026 | 12 | $941m | 20 | 19 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
BLDR and AMZN →BLDR and TSLA →BLDR and HD →Choose a stock to compare with BLDR →
How much of the picture this is
A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.
Which funds own BLDR, latest filings →Back to the 13F Explorer →