Security record · archived quarter
AMBR
name pending profile ingest
2Tracked holders
0Δ holders
21.09KShares held
$232,678Reported value
+1New positions
−1Exits
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 4 | -5 | 50.51K | $75,258 | — | −5 |
| Q1 2026 | 9 | -1 | 73.22K | $172,806 | +1 | −2 |
| Q4 2025 | 10 | 0 | 229.15K | $396,428 | — | — |
| Q3 2025 | 6 | +3 | 268.31K | $898,828 | +3 | — |
| Q2 2025 | 2 | 0 | 21.09K | $232,678 | +1 | −1 |
| Q1 2025 | 1 | -1 | 16.43K | $196,867 | +1 | −2 |
| Q4 2024 | 2 | +1 | 34.67K | $324,521 | +1 | — |
| Q3 2024 | 1 | 0 | 16.03K | $52,909 | — | — |
| Q2 2024 | 1 | — | 29.73K | $37,757 | — | — |
Who holds it · Q2 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Citadel Advisors ✦ | 20.97K | New | $231,310 | 0.0% | New | 1 | SEC ↗ ×2 |
| 2 | BlackRock ✦ (passive) | 124 | — | $1,368 | 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
| Citadel Advisors | $231,310 | 0.0% |
Exited
| Geode Capital Management | $196,867 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 14 holders, 228.70K shares, $539,730 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 2025 ·
Methodology ·
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