Security record · archived quarter
ASPN
Aspen Aerogels, Inc. · Basic Materials · Chemicals - Specialty
17Tracked holders
0Δ holders
22.22MShares held
$154.67MReported value
+1New positions
−1Exits
Momentum inputs (comparable managers): holder breadth 0.0% · share flow +5.0% · 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 | 76 | +3 | 36.34M | $229.77M | +8 | −5 |
| Q1 2026 | 75 | +4 | 32.71M | $111.61M | +13 | −9 |
| Q4 2025 | 71 | -2 | 36.38M | $102.97M | — | −2 |
| Q3 2025 | 17 | 0 | 22.22M | $154.67M | +1 | −1 |
| Q2 2025 | 14 | +1 | 16.35M | $96.82M | +1 | — |
| Q1 2025 | 10 | 0 | 7.40M | $47.29M | +2 | −2 |
| Q4 2024 | 10 | -2 | 7.79M | $92.59M | +1 | −3 |
| Q3 2024 | 11 | +2 | 2.29M | $63.46M | +2 | — |
| Q2 2024 | 9 | — | 3.76M | $89.60M | — | — |
Who holds it · Q3 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 4.98M | 0.0% | $34.64M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 4.98M | 0.0% | $34.64M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 4.98M | 0.0% | $34.64M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 4.98M | 0.0% | $34.64M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 4.98M | 0.0% | $34.64M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 4.98M | 0.0% | $34.64M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 4.98M | 0.0% | $34.64M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 4.98M | 0.0% | $34.64M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 4.98M | 0.0% | $34.64M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 4.98M | 0.0% | $34.64M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 4.98M | 0.0% | $34.64M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 4.98M | 0.0% | $34.64M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 4.98M | 0.0% | $34.64M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 14 | The Vanguard Group ✦ (passive) | 4.51M | +0.5% | $31.39M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 15 | The Vanguard Group ✦ (passive) | 4.51M | +0.5% | $31.39M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 16 | The Vanguard Group ✦ (passive) | 4.51M | +0.5% | $31.39M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 17 | The Vanguard Group ✦ (passive) | 4.51M | +0.5% | $31.39M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 18 | The Vanguard Group ✦ (passive) | 4.51M | +0.5% | $31.39M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 19 | JPMorgan Chase ✦ | 2.70M | — | $18.79M | 0.0% | n/c | 1 | SEC ↗ |
| 20 | JPMorgan Chase ✦ | 2.70M | — | $18.79M | 0.0% | n/c | 1 | SEC ↗ |
| 21 | JPMorgan Chase ✦ | 2.70M | — | $18.79M | 0.0% | n/c | 1 | SEC ↗ |
| 22 | JPMorgan Chase ✦ | 2.70M | — | $18.79M | 0.0% | n/c | 1 | SEC ↗ |
| 23 | JPMorgan Chase ✦ | 2.70M | — | $18.79M | 0.0% | n/c | 1 | SEC ↗ |
| 24 | JPMorgan Chase ✦ | 2.70M | — | $18.79M | 0.0% | n/c | 1 | SEC ↗ |
| 25 | JPMorgan Chase ✦ | 2.70M | — | $18.79M | 0.0% | n/c | 1 | SEC ↗ |
| 26 | JPMorgan Chase ✦ | 2.70M | — | $18.79M | 0.0% | n/c | 1 | SEC ↗ |
| 27 | State Street Global Advisors ✦ (passive) | 1.94M | +1.2% | $13.53M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 28 | Geode Capital Management ✦ (passive) | 1.58M | +0.1% | $11.03M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 29 | Geode Capital Management ✦ (passive) | 1.58M | +0.1% | $11.03M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 30 | Millennium Management ✦ | 1.45M | +59.6% | $10.07M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 31 | Goldman Sachs Group ✦ | 1.42M | — | $9.88M | 0.0% | n/c | 1 | SEC ↗ |
| 32 | Goldman Sachs Group ✦ | 1.42M | — | $9.88M | 0.0% | n/c | 1 | SEC ↗ |
| 33 | Citadel Advisors ✦ | 1.11M | +583.7% | $7.76M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 34 | Citadel Advisors ✦ | 1.11M | +583.7% | $7.76M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 35 | Two Sigma Investments ✦ | 811.53K | +5.2% | $5.65M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 36 | Morgan Stanley ✦ | 694.49K | — | $4.83M | 0.0% | n/c | 1 | SEC ↗ |
| 37 | Morgan Stanley ✦ | 694.49K | — | $4.83M | 0.0% | n/c | 1 | SEC ↗ |
| 38 | Morgan Stanley ✦ | 694.49K | — | $4.83M | 0.0% | n/c | 1 | SEC ↗ |
| 39 | Morgan Stanley ✦ | 694.49K | — | $4.83M | 0.0% | n/c | 1 | SEC ↗ |
| 40 | Morgan Stanley ✦ | 694.49K | — | $4.83M | 0.0% | n/c | 1 | SEC ↗ |
| 41 | Morgan Stanley ✦ | 694.49K | — | $4.83M | 0.0% | n/c | 1 | SEC ↗ |
| 42 | Morgan Stanley ✦ | 694.49K | — | $4.83M | 0.0% | n/c | 1 | SEC ↗ |
| 43 | Marshall Wace ✦ | 312.19K | -22.7% | $2.17M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 44 | Marshall Wace ✦ | 312.19K | -22.7% | $2.17M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 45 | Marshall Wace ✦ | 312.19K | -22.7% | $2.17M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 46 | Renaissance Technologies ✦ | 246.90K | -63.6% | $1.72M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 47 | Point72 Asset Management ✦ | 184.30K | New | $1.28M | 0.0% | New | 1 | SEC ↗ |
| 48 | AQR Capital Management ✦ | 177.81K | -6.3% | $1.24M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 49 | AQR Capital Management ✦ | 177.81K | -6.3% | $1.24M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 50 | AQR Capital Management ✦ | 177.81K | -6.3% | $1.24M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 51 | AQR Capital Management ✦ | 177.81K | -6.3% | $1.24M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 52 | T. Rowe Price ✦ | 76.63K | +8.1% | $534,000 | 0.0% | ▲ Add | 6 | SEC ↗ |
| 53 | D. E. Shaw & Co. ✦ | 13.22K | -36.2% | $92,025 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 54 | Fidelity (FMR) ✦ | 6.66K | -96.1% | $46,377 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 55 | Fidelity (FMR) ✦ | 6.66K | -96.1% | $46,377 | 0.0% | ▼ Trim | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Point72 Asset Management | $1.28M | 0.0% |
Exited
| Gotham Asset Management | $61,544 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 164 holders, 68.34M shares, $229.58M 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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