Who owns BLDG
Which tracked institutional funds hold BLDG, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See BLDG company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-18). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
2 tracked funds added or opened BLDG while 4 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
BLDG’s largest tracked holder by dollar value, Cambria Investment Management, L.P., sizes it at 0.9% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.9pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in BLDG divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 14 tracked filers holding BLDG, 7 increased or opened the position and 8 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in BLDG between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 1
- JANE STREET GROUP, LLC$611K
Full exits 1
- FLOW TRADERS U.S. LLC$2M
Largest adds
- ALM First Financial Advisors, LLC$2M
Largest trims
- Carter Financial Group, INC.$840K
- Lifetime Wealth Management P.C.$496K
- Belpointe Asset Management LLC$300K
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| Cambria Investment Management, L.P. added | 651,835 | $16M | 33.4% | 2026-Q1 |
| ALM First Financial Advisors, LLC added | 598,127 | $14M | 30.7% | 2026-Q1 |
| Empowered Funds, LLC added | 268,692 | $6M | 13.8% | 2026-Q1 |
| Carter Financial Group, INC. trimmed | 127,134 | $3M | 6.5% | 2026-Q1 |
| Lifetime Wealth Management P.C. trimmed | 63,868 | $2M | 3.3% | 2026-Q1 |
| VestGen Advisors, LLC | 42,301 | $1M | 2.4% | 2026-Q1 |
| OSAIC HOLDINGS, INC. added | 33,920 | $813K | 1.7% | 2026-Q1 |
| Betterment LLC trimmed | 26,639 | $639K | 1.4% | 2026-Q1 |
| JANE STREET GROUP, LLC trimmed | 25,492 | $611K | 1.3% | 2026-Q1 |
| Belpointe Asset Management LLC trimmed | 13,465 | $323K | 0.7% | 2026-Q1 |
| CENTAURUS FINANCIAL, INC. added | 8,382 | $201K | 0.4% | 2026-Q1 |
| STANCE CAPITAL LLC | 406 | $10K | 0.0% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN trimmed | 321 | $8K | 0.0% | 2026-Q1 |
| CoreCap Advisors, LLC | 5 | $120 | 0.0% | 2026-Q1 |
| FLOW TRADERS U.S. LLC trimmed | 65,462 | $2M | 3.4% | 2025-Q4 stale |
| CITADEL ADVISORS LLC added | 14,537 | $363K | 0.8% | 2025-Q2 stale |
| UBS Group AG added | 1,704 | $41K | 0.1% | 2025-Q1 stale |
| Eagle Bay Advisors LLC new | 1,031 | $25K | 0.1% | 2025-Q4 stale |
| PNC Financial Services Group, Inc. trimmed | 500 | $12K | 0.0% | 2025-Q1 stale |
| MORGAN STANLEY | 1 | $27 | 0.0% | 2025-Q4 stale |
| Kilter Group LLC new | 0 | $1 | 0.0% | 2025-Q2 stale |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | — | 0.0% | 2025-Q2 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.