Security record
OSTX
name pending profile ingest
15Tracked holders
0Δ holders
1.76MShares held
$3.34MReported value
+3New positions
−4Exits
Momentum inputs (comparable managers): holder breadth 0.0% · share flow -7.2% · net new positions -6.7% — formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2026
Ownership over time
Who holds it · Q2 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Vanguard Capital Management Llc | 777.65K | +65.7% | $1.48M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 2 | Geode Capital Management ✦ (passive) | 301.79K | +7.8% | $573,408 | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 3 | BlackRock ✦ (passive) | 242.48K | +274.4% | $460,710 | 0.0% | ▲ Add | 5 | SEC ↗ ×3 |
| 4 | State Street Global Advisors ✦ (passive) | 120.10K | +31.7% | $228,190 | 0.0% | ▲ Add | 4 | SEC ↗ |
| 5 | Marshall Wace ✦ | 100.64K | New | $191,216 | 0.0% | New | 1 | SEC ↗ |
| 6 | Northern Trust Corp | 70.82K | +7.2% | $134,552 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 7 | Two Sigma Investments ✦ | 30.41K | +15.3% | $57,787 | 0.0% | ▲ Add | 4 | SEC ↗ |
| 8 | Stifel Financial Corp | 27.90K | +86.0% | $53,010 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 9 | Jane Street Group, Llc | 27.00K | -33.0% | $51,298 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 10 | Jones Financial Companies Lllp | 14.50K | +12.2% | $27,262 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 11 | Susquehanna International Group, Llp | 13.53K | -97.0% | $25,711 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 12 | Morgan Stanley ✦ | 13.00K | +37.0% | $24,700 | 0.0% | ▲ Add | 4 | SEC ↗ |
| 13 | UBS Group AG | 8.81K | -97.5% | $16,745 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 14 | Rockefeller Capital Management L.P. | 7.50K | New | $14,250 | 0.0% | New | 1 | SEC ↗ |
| 15 | Barclays Plc | 1.53K | New | $2,915 | 0.0% | New | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Marshall Wace | $191,216 | 0.0% |
| Rockefeller Capital… | $14,250 | 0.0% |
| Barclays Plc | $2,915 | 0.0% |
Exited
| HighTower Advisors, LLC | $21,432 | was 0.0% |
| Mercer Global Advisors Inc… | $14,410 | was 0.0% |
| LPL Financial LLC | $14,259 | was 0.0% |
| Fidelity (FMR) | $2 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 29 holders, 2.90M shares, $4.03M 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 2026 ·
Methodology ·
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