Security record · archived quarter
GERN
Geron Corporation · Healthcare · Biotechnology
17Tracked holders
0Δ holders
193.54MShares held
$265.15MReported value
+2New positions
−2Exits
Momentum inputs (comparable managers): holder breadth 0.0% · share flow -1.2% · net new positions 0.0% — formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 91 | +1 | 281.46M | $360.40M | +7 | −6 |
| Q1 2026 | 93 | -3 | 271.64M | $404.62M | +7 | −10 |
| Q4 2025 | 95 | -3 | 246.07M | $324.82M | — | −3 |
| Q3 2025 | 17 | 0 | 193.54M | $265.15M | +2 | −2 |
| Q2 2025 | 14 | +1 | 162.89M | $229.67M | +1 | — |
| Q1 2025 | 10 | -1 | 76.28M | $121.30M | — | −1 |
| Q4 2024 | 11 | +1 | 96.17M | $340.44M | +2 | −1 |
| Q3 2024 | 9 | 0 | 71.98M | $326.79M | +2 | −2 |
| Q2 2024 | 9 | — | 67.08M | $284.41M | — | — |
Who holds it · Q3 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 46.61M | -6.8% | $63.85M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 46.61M | -6.8% | $63.85M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 46.61M | -6.8% | $63.85M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 46.61M | -6.8% | $63.85M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 46.61M | -6.8% | $63.85M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 46.61M | -6.8% | $63.85M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 46.61M | -6.8% | $63.85M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 46.61M | -6.8% | $63.85M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 46.61M | -6.8% | $63.85M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 46.61M | -6.8% | $63.85M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 46.61M | -6.8% | $63.85M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 46.61M | -6.8% | $63.85M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 46.61M | -6.8% | $63.85M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 14 | The Vanguard Group ✦ (passive) | 34.42M | -3.3% | $47.16M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 15 | The Vanguard Group ✦ (passive) | 34.42M | -3.3% | $47.16M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 16 | The Vanguard Group ✦ (passive) | 34.42M | -3.3% | $47.16M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 17 | The Vanguard Group ✦ (passive) | 34.42M | -3.3% | $47.16M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 18 | The Vanguard Group ✦ (passive) | 34.42M | -3.3% | $47.16M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 19 | State Street Global Advisors ✦ (passive) | 26.62M | +12.6% | $36.47M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 20 | Goldman Sachs Group ✦ | 21.31M | — | $29.19M | 0.0% | n/c | 1 | SEC ↗ |
| 21 | Goldman Sachs Group ✦ | 21.31M | — | $29.19M | 0.0% | n/c | 1 | SEC ↗ |
| 22 | Goldman Sachs Group ✦ | 21.31M | — | $29.19M | 0.0% | n/c | 1 | SEC ↗ |
| 23 | Citadel Advisors ✦ | 15.71M | +30.5% | $21.52M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 24 | Citadel Advisors ✦ | 15.71M | +30.5% | $21.52M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 25 | Geode Capital Management ✦ (passive) | 13.12M | -7.3% | $17.98M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 26 | Geode Capital Management ✦ (passive) | 13.12M | -7.3% | $17.98M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 27 | Millennium Management ✦ | 11.37M | +88.0% | $15.57M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 28 | Morgan Stanley ✦ | 10.70M | — | $14.66M | 0.0% | n/c | 1 | SEC ↗ |
| 29 | Morgan Stanley ✦ | 10.70M | — | $14.66M | 0.0% | n/c | 1 | SEC ↗ |
| 30 | Morgan Stanley ✦ | 10.70M | — | $14.66M | 0.0% | n/c | 1 | SEC ↗ |
| 31 | Morgan Stanley ✦ | 10.70M | — | $14.66M | 0.0% | n/c | 1 | SEC ↗ |
| 32 | Morgan Stanley ✦ | 10.70M | — | $14.66M | 0.0% | n/c | 1 | SEC ↗ |
| 33 | Morgan Stanley ✦ | 10.70M | — | $14.66M | 0.0% | n/c | 1 | SEC ↗ |
| 34 | Morgan Stanley ✦ | 10.70M | — | $14.66M | 0.0% | n/c | 1 | SEC ↗ |
| 35 | Fidelity (FMR) ✦ | 7.70M | +59.2% | $10.55M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 36 | Fidelity (FMR) ✦ | 7.70M | +59.2% | $10.55M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 37 | Renaissance Technologies ✦ | 2.36M | -52.7% | $3.24M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 38 | Two Sigma Investments ✦ | 1.85M | New | $2.54M | 0.0% | New | 1 | SEC ↗ |
| 39 | JPMorgan Chase ✦ | 974.50K | — | $1.34M | 0.0% | n/c | 1 | SEC ↗ |
| 40 | JPMorgan Chase ✦ | 974.50K | — | $1.34M | 0.0% | n/c | 1 | SEC ↗ |
| 41 | JPMorgan Chase ✦ | 974.50K | — | $1.34M | 0.0% | n/c | 1 | SEC ↗ |
| 42 | JPMorgan Chase ✦ | 974.50K | — | $1.34M | 0.0% | n/c | 1 | SEC ↗ |
| 43 | JPMorgan Chase ✦ | 974.50K | — | $1.34M | 0.0% | n/c | 1 | SEC ↗ |
| 44 | JPMorgan Chase ✦ | 974.50K | — | $1.34M | 0.0% | n/c | 1 | SEC ↗ |
| 45 | AQR Capital Management ✦ | 417.90K | +100.9% | $572,517 | 0.0% | ▲ Add | 6 | SEC ↗ |
| 46 | AQR Capital Management ✦ | 417.90K | +100.9% | $572,517 | 0.0% | ▲ Add | 6 | SEC ↗ |
| 47 | AQR Capital Management ✦ | 417.90K | +100.9% | $572,517 | 0.0% | ▲ Add | 6 | SEC ↗ |
| 48 | AQR Capital Management ✦ | 417.90K | +100.9% | $572,517 | 0.0% | ▲ Add | 6 | SEC ↗ |
| 49 | AQR Capital Management ✦ | 417.90K | +100.9% | $572,517 | 0.0% | ▲ Add | 6 | SEC ↗ |
| 50 | T. Rowe Price ✦ | 288.84K | -42.0% | $396,000 | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 51 | Gotham Asset Management ✦ | 38.83K | +1.8% | $53,197 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 52 | Fisher Asset Management ✦ | 27.21K | New | $37,276 | 0.0% | New | 1 | SEC ↗ |
| 53 | Marshall Wace ✦ | 22.53K | -97.6% | $30,869 | 0.0% | ▼ Trim | 5 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Two Sigma Investments | $2.54M | 0.0% |
| Fisher Asset Management | $37,276 | 0.0% |
Exited
| Point72 Asset Management | $13.54M | was 0.0% |
| Wellington Management | $351,780 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 253 holders, 492.17M shares, $730.64M 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: Q3 2025 ·
Methodology ·
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