196 tracked 13F filers disclose a position in AMPL as of the latest SEC 13F filings, a combined $481.6M 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 | BlackRock, Inc. | $69.3M | 10.2M | ▲+3.9% Added · +380K sh | Q1 2026 | |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | $42.0M | 6.2M | →First observed position No prior filed position | Q1 2026 | |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | $27.9M | 4.1M | →First observed position No prior filed position | Q1 2026 | |
| 4 | FMR LLC | $22.6M | 3.3M | ▲+642% Added · +2.9M sh | Q1 2026 | |
| 5 | SC US (TTGP), LTD. | $19.1M | 2.8M | —Held | Q1 2026 | |
| 6 | BAILLIE GIFFORD & CO | $18.0M | 2.6M | ▼−3.9% Reduced · −108K sh | Q1 2026 | |
| 7 | STATE STREET CORP | $19.9M | 2.6M | ▲+7.2% Added · +175K sh | Q2 2026 | |
| 8 | Nuveen, LLC | $17.4M | 2.6M | ▼−3.4% Reduced · −91K sh | Q1 2026 | |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | $19.0M | 2.5M | ▲+6.5% Added · +151K sh | Q2 2026 | |
| 10 | Point72 Asset Management, L.P. | $16.4M | 2.4M | ▼−31% Reduced · −1.1M sh | Q1 2026 | |
| 11 | MILLENNIUM MANAGEMENT LLC | $13.9M | 2.0M | ▼−9.8% Reduced · −221K sh | Q1 2026 | |
| 12 | JACOBS LEVY EQUITY MANAGEMENT, INC | $11.8M | 1.7M | ▲30× Added · +1.7M sh | Q1 2026 | |
| 13 | Optimus Prime Fund Management Co., Ltd. | $12.1M | 1.6M | —Held | Q2 2026 | |
| 14 | MONIMUS CAPITAL MANAGEMENT, LP | $8.6M | 1.3M | ▲+240% Added · +893K sh | Q1 2026 | |
| 15 | ArrowMark Colorado Holdings LLC | $8.6M | 1.3M | ▼−15% Reduced · −228K sh | Q1 2026 | |
| 16 | AQR CAPITAL MANAGEMENT LLC | $8.4M | 1.2M | ▲+46% Added · +392K sh | Q1 2026 | |
| 17 | GAGNON SECURITIES LLC | $8.1M | 1.1M | ▼−0.4% Reduced · −4K sh | Q2 2026 | |
| 18 | MORGAN STANLEY | $6.3M | 921K | ▲+34% Added · +235K sh | Q1 2026 | |
| 19 | NORTHERN TRUST CORP | $5.9M | 869K | ▲+5.6% Added · +46K sh | Q1 2026 | |
| 20 | CenterBook Partners LP | $5.9M | 771K | ▲19× Added · +730K sh | Q2 2026 | |
| 21 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $5.0M | 734K | ▼−5.7% Reduced · −45K sh | Q1 2026 | |
| 22 | Squarepoint Ops LLC | $4.9M | 712K | ▼−26% Reduced · −256K sh | Q1 2026 | |
| 23 | TWO SIGMA INVESTMENTS, LP | $4.7M | 692K | ▼−34% Reduced · −350K sh | Q1 2026 | |
| 24 | VANGUARD FIDUCIARY TRUST CO | $4.5M | 661K | →First observed position No prior filed position | Q1 2026 | |
| 25 | Gagnon Advisors, LLC | $4.9M | 635K | —Held | Q2 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, 10 funds opened a new position in AMPL and 17 added to an existing one, while 24 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 | 91 funds | $159.4B |
| NVIDIA CORPNVDA | 90 funds | $240.6B |
| AMAZON.COM INCAMZN | 90 funds | $119.9B |
| META PLATFORMS INC-CLASS AMETA | 87 funds | $65.7B |
| APPLE INCAAPL | 84 funds | $174.4B |
| BLOOM ENERGY CORP- ABE | 83 funds | $2.2B |
| BROADCOM INCAVGO | 82 funds | $96.7B |
| ELI LILLY & COLLY | 82 funds | $45.9B |
| VISA INC-CLASS A SHARESV | 82 funds | $34.8B |
| JPMORGAN CHASE & COJPM | 82 funds | $31.5B |
| AMPHENOL CORP-CL AAPH | 82 funds | $15.1B |
| ADOBE INCADBE | 82 funds | $8.0B |
Ranked by how many of AMPL's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jun 12, 2026 | Wong Catherine | Director | Sell (S) | 7K | $51K |
| Jun 1, 2026 | Liu Curtis | Chief Technology Officer, Director, 10% Owner | Sell (S) | 23K | $183K |
| May 4, 2026 | Liu Curtis | Chief Technology Officer, Director, 10% Owner | Sell (S) | 18K | $143K |
| Mar 6, 2026 | Liu Curtis | Chief Technology Officer, Director, 10% Owner | Sell (S) | 33K | $266K |
| Mar 5, 2026 | Liu Curtis | Chief Technology Officer, Director, 10% Owner | Sell (S) | 30K | $240K |
| Dec 26, 2025 | Skates Spenser | Chief Executive Officer, Director, 10% Owner | Sell (S) | 100 | $1K |
| Dec 24, 2025 | Skates Spenser | Chief Executive Officer, Director, 10% Owner | Sell (S) | 43K | $513K |
| Dec 15, 2025 | Schultz Erica | Director | Sell (S) | 10K | $109K |
| Nov 17, 2025 | Schultz Erica | Director | Sell (S) | 10K | $102K |
| Nov 11, 2025 | Skates Spenser | Chief Executive Officer, Director, 10% Owner | Sell (S) | 400K | $4.4M |
| Nov 7, 2025 | Casey Andrew | Chief Financial Officer | Buy (P) | 30K | $300K |
| Oct 15, 2025 | Schultz Erica | Director | Sell (S) | 10K | $101K |
Connected entities for AMPL
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/AMPL/capital-change-brief"
Use Arkolith's capital_change_brief for AMPL. 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 AMPL. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.