159 tracked 13F filers disclose a position in ASPN as of the latest SEC 13F filings, a combined $227.4M in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | OAKTOP CAPITAL MANAGEMENT II, L.P. | $32.8M | 5.2M | —Held | Q2 2026 | |
| 2 | BlackRock, Inc. | $16.2M | 4.7M | ▼−3.8% Reduced · −186K sh | Q1 2026 | |
| 3 | NEEDHAM INVESTMENT MANAGEMENT LLC | $15.5M | 4.5M | ▲+3.8% Added · +167K sh | Q1 2026 | |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | $11.8M | 3.4M | →First observed position No prior filed position | Q1 2026 | |
| 5 | GEORGE KAISER FAMILY FOUNDATION | $20.1M | 3.2M | —Held | Q2 2026 | |
| 6 | STATE STREET CORP | $16.2M | 2.6M | ▲+10% Added · +239K sh | Q2 2026 | |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | $11.2M | 1.8M | ▲+15% Added · +230K sh | Q2 2026 | |
| 8 | RICE HALL JAMES & ASSOCIATES, LLC | $10.4M | 1.6M | ▲+5.3% Added · +83K sh | Q2 2026 | |
| 9 | GAGNON SECURITIES LLC | $9.7M | 1.5M | ▼−18% Reduced · −326K sh | Q2 2026 | |
| 10 | AMERIPRISE FINANCIAL INC | $5.2M | 1.5M | ▲+9.3% Added · +128K sh | Q1 2026 | |
| 11 | MILLENNIUM MANAGEMENT LLC | $4.8M | 1.4M | ▲+61% Added · +534K sh | Q1 2026 | |
| 12 | MARSHALL WACE, LLP | $4.3M | 1.3M | ▲+128% Added · +709K sh | Q1 2026 | |
| 13 | DIMENSIONAL FUND ADVISORS LP | $4.3M | 1.3M | ▼−37% Reduced · −747K sh | Q1 2026 | |
| 14 | AMERICAN CENTURY COMPANIES INC | $4.3M | 1.2M | ▲+7.8% Added · +90K sh | Q1 2026 | |
| 15 | JACOBS LEVY EQUITY MANAGEMENT, INC | $4.2M | 1.2M | ▲+770% Added · +1.1M sh | Q1 2026 | |
| 16 | JPMORGAN CHASE & CO | $3.1M | 965K | ▼−35% Reduced · −518K sh | Q1 2026 | |
| 17 | GOLDMAN SACHS GROUP INC | $3.1M | 900K | ▼−31% Reduced · −395K sh | Q1 2026 | |
| 18 | D. E. Shaw & Co., Inc. | $2.9M | 834K | ▲36× Added · +810K sh | Q1 2026 | |
| 19 | VANGUARD PORTFOLIO MANAGEMENT LLC | $2.5M | 717K | →First observed position No prior filed position | Q1 2026 | |
| 20 | BNP PARIBAS FINANCIAL MARKETS | $2.4M | 698K | ▲+1.0% Added · +7K sh | Q1 2026 | |
| 21 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $1.9M | 557K | ▲+3.0% Added · +16K sh | Q1 2026 | |
| 22 | AQR CAPITAL MANAGEMENT LLC | $1.8M | 526K | ▲+42% Added · +156K sh | Q1 2026 | |
| 23 | NORTHERN TRUST CORP | $1.8M | 523K | ▼−2.9% Reduced · −16K sh | Q1 2026 | |
| 24 | VANGUARD FIDUCIARY TRUST CO | $1.6M | 454K | →First observed position No prior filed position | Q1 2026 | |
| 25 | FEDERATED HERMES, INC. | $1.5M | 450K | ▼−20% Reduced · −114K sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
Last quarter, 14 funds opened a new position in ASPN and 19 added to an existing one, while 17 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 81 funds | $129.8B |
| NVIDIA CORPNVDA | 80 funds | $191.2B |
| AMAZON.COM INCAMZN | 79 funds | $95.7B |
| COSTCO WHOLESALE CORPCOST | 79 funds | $19.9B |
| APPLE INCAAPL | 77 funds | $145.3B |
| META PLATFORMS INC-CLASS AMETA | 77 funds | $57.7B |
| BROADCOM INCAVGO | 76 funds | $79.4B |
| JPMORGAN CHASE & COJPM | 76 funds | $29.7B |
| ALPHABET INC-CL AGOOGL | 75 funds | $76.3B |
| VISA INC-CLASS A SHARESV | 75 funds | $31.6B |
| BANK OF AMERICA CORPBAC | 75 funds | $16.8B |
| CHEVRON CORPCVX | 75 funds | $16.3B |
Ranked by how many of ASPN's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Nov 13, 2025 | Young Donald R | President and CEO, Director | Sell (S) | 57K | $184K |
| Aug 13, 2025 | Daniel Santhosh P | Chief Accounting Officer | Sell (S) | 2K | $15K |
| Aug 12, 2025 | Daniel Santhosh P | Chief Accounting Officer | Sell (S) | 4K | $32K |
| May 12, 2025 | Young Donald R | President and CEO, Director | Buy (P) | 20K | $107K |
| Sep 30, 2024 | Young Donald R | President and CEO, Director | Sell (S) | 63K | $1.9M |
| Aug 26, 2024 | RODRIGUEZ RICARDO C. | CFO & Treasurer | Sell (S) | 1K | $34K |
| Aug 26, 2024 | RODRIGUEZ RICARDO C. | CFO & Treasurer | Sell (S) | 24K | $729K |
| Aug 26, 2024 | RODRIGUEZ RICARDO C. | CFO & Treasurer | Sell (S) | 100 | $3K |
| Aug 26, 2024 | RODRIGUEZ RICARDO C. | CFO & Treasurer | Sell (S) | 7K | $213K |
| May 29, 2024 | Young Donald R | President and CEO, Director | Sell (S) | 177K | $5.2M |
| May 28, 2024 | Young Donald R | President and CEO, Director | Sell (S) | 26K | $781K |
| May 28, 2024 | Young Donald R | President and CEO, Director | Sell (S) | 231K | $6.7M |
Connected entities for ASPN
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/ASPN/capital-change-brief"
Use Arkolith's capital_change_brief for ASPN. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for ASPN. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.