Security record · archived quarter
XBI
State Street SPDR S&P Biotech ETF · Financial Services · Asset Management
5Tracked holders
—Δ holders
460.49KShares held
$42.69MReported value
+0New positions
−0Exits
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2024
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 93 | +4 | 100.80M | $15.95B | +7 | −3 |
| Q1 2026 | 90 | +1 | 110.09M | $14.00B | +3 | −2 |
| Q4 2025 | 88 | +1 | 111.38M | $13.58B | +2 | −1 |
| Q3 2025 | 9 | -2 | 60.81M | $6.09B | +1 | −3 |
| Q2 2025 | 8 | 0 | 709.53K | $58.84M | +1 | −1 |
| Q1 2025 | 6 | 0 | 732.41K | $59.40M | +1 | −1 |
| Q4 2024 | 6 | +1 | 1.37M | $123.50M | +2 | −1 |
| Q3 2024 | 5 | 0 | 1.78M | $175.82M | +1 | −1 |
| Q2 2024 | 5 | — | 460.49K | $42.69M | — | — |
Who holds it · Q2 2024
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Two Sigma Investments ✦ | 321.40K | — | $29.80M | 0.1% | n/c | 1 | SEC ↗ |
| 2 | Citadel Advisors ✦ | 68.00K | — | $6.30M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | Wellington Management ✦ | 31.51K | — | $2.92M | 0.0% | n/c | 1 | SEC ↗ |
| 4 | Millennium Management ✦ | 23.49K | — | $2.18M | 0.0% | n/c | 1 | SEC ↗ |
| 5 | Marshall Wace ✦ | 16.09K | — | $1.49M | 0.0% | n/c | 1 | SEC ↗ |
| 6 | Marshall Wace ✦ | 16.09K | — | $1.49M | 0.0% | n/c | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 811 holders, 125.00M shares, $15.39B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q2 2024 ·
Methodology ·
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