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Of the 18 tracked institutions holding BLDR, 10 have a 3-year clone track record — 8 of them beat the S&P. Average holder's clone alpha: +3.9pt. It's a gauge of who owns the name, not just how many.
Among the 18 tracked institutional investors we monitor, BLDR (BUILDERS FIRSTSOURCE INC) is held with a combined value of $3.10B across 34,617,534 shares. The largest holder is VANGUARD GROUP INC with a position worth $1.27B (0.02% of their portfolio). 2 funds opened new positions in the most recent quarter. 7 funds increased their holdings. 9 funds reduced their position.
Total Institutional Value
$3.10B
Total Shares Held
34,617,534
Institutional Holders
18
% of Shares Outstanding
32.2%
of 107.56M shares · SEC 2026-04-24
Days to Cover
2.9-4.2%
7.60M shares short · FINRA 2026-06-30
Tracked 13F institutions hold 32.2% of BLDR's shares outstanding. This is a floor: 13F filings arrive on a ~45-day lag and we track only a subset of institutional filers, so true institutional ownership is higher. Shares-outstanding is the latest SEC cover-page figure (as of 2026-04-24), not a live float.
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | VANGUARD GROUP INC | $1.27B | 0.02% | -0.4% |
| 2 | BlackRock, Inc. | $721.32M | 0.01% | -1.3% |
| 3 | STATE STREET CORP | $421.54M | 0.01% | +0.2% |
| 4 | WELLINGTON MANAGEMENT GROUP LLP | $302.93M | 0.06% | +10.9% |
| 5 | FMR LLC | $104.25M | 0.01% | -63.6% |
| 6 | MILLENNIUM MANAGEMENT LLC | $83.43M | 0.03% | +240.4% |
| 7 | Point72 Asset Management, L.P. | $47.14M | 0.08% | +98.9% |
| 8 | CITADEL ADVISORS LLC | $44.23M | 0.03% | -58.1% |
| 9 | Grantham, Mayo, Van Otterloo & Co. LLC | $25.03M | 0.06% | +86.2% |
| 10 | SEMPER AUGUSTUS INVESTMENTS GROUP LLC | $18.79M | 2.24% | New |
As of the latest SEC 13F filings, VANGUARD GROUP INC is the largest institutional holder of BLDR with a position worth $1.27B, representing 0.02% of their portfolio. In total, 18 institutional investors hold BLDR with a combined value of $3.10B.
In the most recent quarter, 2 funds opened a new position in BLDR. Additionally, 7 increased their holdings and 9 reduced their positions.
Institutional investors hold $3.10B worth of BLDR stock across 18 positions. The largest institutional holder is VANGUARD GROUP INC with $1.27B in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For BLDR, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their BLDR positions.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
Last Close
$72.86
2026-07-24
YTD
-30.4%
8% of 52-week range
