Among active 13F managers last quarter, 9 opened and 17 added, while 14 reduced; the largest holder to move was American Century Companies Inc (+1.8%). Over the last 180 days, 1 insider sold and 1 insider bought, a net -$6.4M in open-market trades.
The legs disagree, or only one of them leans.
109 tracked 13F filers disclose a position in AMPY as of the latest SEC 13F filings, a combined $110.7M 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 | Shares | Position value | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | CDC Financial, Inc. | 2.6M | $10.3M | —Held | Q2 2026 | |
| 2 | BlackRock, Inc. | 2.5M | $9.8M | ▲+327% Added · +1.9M sh | Q2 2026 | |
| 3 | Vanguard Capital Management LLC | 1.7M | $6.6M | ▲+1.4% Added · +23K sh | Q2 2026 | |
| 4 | Dimensional Fund Advisors LP | 1.6M | $10.2M | ▼−22% Reduced · −448K sh | Q1 2026 | |
| 5 | American Century Companies Inc | 1.4M | $9.0M | ▲+1.8% Added · +25K sh | Q1 2026 | |
| 6 | Marshall Wace, LLP | 1.3M | $7.8M | ▲+32% Added · +302K sh | Q1 2026 | |
| 7 | Geode Capital Management, LLC | 908K | $3.6M | ▲+119% Added · +493K sh | Q2 2026 | |
| 8 | Susquehanna International Group, LLP | 895K | $5.6M | ▲+99% Added · +444K sh | Q1 2026 | |
| 9 | Arrowstreet Capital, Limited Partnership | 864K | $5.4M | ▲New +864K sh | Q1 2026 | |
| 10 | Caption Management, LLC | 572K | $2.3M | ▼−35% Reduced · −302K sh | Q2 2026 | |
| 11 | Bridgeway Capital Management, LLC | 532K | $2.1M | ▲+24% Added · +104K sh | Q2 2026 | |
| 12 | Millennium Management LLC | 481K | $3.0M | ▲+243% Added · +341K sh | Q1 2026 | |
| 13 | Morgan Stanley | 408K | $2.5M | ▲+1.8% Added · +7K sh | Q1 2026 | |
| 14 | State Street Corp | 399K | $1.6M | ▲+136% Added · +230K sh | Q2 2026 | |
| 15 | Connor, Clark & Lunn Investment Management Ltd. | 337K | $1.3M | ▲+54% Added · +119K sh | Q2 2026 | |
| 16 | Citadel Advisors LLC | 326K | $1.3M | ▲+36% Added · +86K sh | Q2 2026 | |
| 17 | D. E. Shaw & Co., Inc. | 322K | $2.0M | ▲+203% Added · +216K sh | Q1 2026 | |
| 18 | Trexquant Investment LP | 285K | $1.1M | ▲+228% Added · +198K sh | Q2 2026 | |
| 19 | De Lisle Partners LLP | 285K | $1.1M | ▲+7.5% Added · +20K sh | Q2 2026 | |
| 20 | Jacobs Levy Equity Management, Inc | 277K | $1.1M | ▲+65% Added · +109K sh | Q2 2026 | |
| 21 | Inlight Wealth Management, LLC | 270K | $1.1M | ▼−1.2% Reduced · −3K sh | Q2 2026 | |
| 22 | Empowered Funds, LLC | 254K | $1.6M | ▲+10% Added · +23K sh | Q1 2026 | |
| 23 | Vanguard Fiduciary Trust Co | 242K | $965K | ▲+13% Added · +28K sh | Q2 2026 | |
| 24 | Vanguard Portfolio Management LLC | 241K | $960K | ▲New +241K sh | Q2 2026 | |
| 25 | Qube Research & Technologies Ltd | 240K | $1.5M | ▲New +240K 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. 1 value row is withheld because the reported units disagree with same-security peers; share counts are unchanged.
Last quarter, 9 funds opened a new position in AMPY and 17 added to an existing one, while 14 reduced. 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 | Their position there |
|---|---|---|
| Nvidia CorpNVDA | 50 funds | $103.0B |
| Microsoft CorpMSFT | 49 funds | $74.4B |
| Amazon.com IncAMZN | 47 funds | $56.7B |
| Alphabet Inc-CL CGOOG | 47 funds | $32.9B |
| Berkshire Hathaway Inc-CL BBRK/B | 46 funds | $9.6B |
| Meta Platforms Inc-Class AMETA | 45 funds | $26.2B |
| Eli Lilly & CoLLY | 45 funds | $19.6B |
| Micron Technology IncMU | 45 funds | $14.5B |
| Bank Of America CorpBAC | 45 funds | $11.2B |
| Alphabet Inc-CL AGOOGL | 44 funds | $48.2B |
| Broadcom IncAVGO | 44 funds | $42.8B |
| Mastercard Inc - AMA | 44 funds | $15.4B |
Ranked by how many of AMPY's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in AMPY.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jun 23, 2026 | Frew James | SEE REMARKS | Buy (P) | 25K | $99K |
| Mar 17, 2026 | Coghill Clint D | Director | Sell (S) | 242K | $1.5M |
| Mar 16, 2026 | Coghill Clint D | Director | Sell (S) | 501K | $3.2M |
| Mar 13, 2026 | Coghill Clint D | Director | Sell (S) | 256K | $1.7M |
| Aug 14, 2025 | Coghill Clint D | Director | Buy (P) | 65K | $255K |
| Aug 13, 2025 | Coghill Clint D | Director | Buy (P) | 167K | $648K |
| Aug 12, 2025 | Coghill Clint D | Director | Buy (P) | 117K | $433K |
| Aug 12, 2025 | Frew James | SEE REMARKS | Buy (P) | 25K | $93K |
| Aug 11, 2025 | Frew James | SEE REMARKS | Buy (P) | 50K | $175K |
| Jun 23, 2025 | Dulany Eric Edward | SEE REMARKS | Sell (S) | 6K | $20K |
| Jun 20, 2025 | Coghill Clint D | Director | Buy (P) | 150K | $551K |
| Jun 18, 2025 | Hamm Christopher W. | Director | Buy (P) | 77K | $283K |
Where institutional funds (13F), corporate insiders (Form 4) and US House members (STOCK Act) are buying or selling the same name in the same window. Green is buying, red is selling.
Insiders and Congress: last 180 days. Funds: latest 13F, top 100 holders incl. passive
| Source | Buying | Selling | Net |
|---|---|---|---|
13F funds Top 100 holders by value, passive included; the hero counts active managers only | 41 | 27 | – |
Insiders Form 4 open-market | 1 | 1 | -$6.4M |
US House STOCK Act trades | 0 | 0 | $0 |
Capital Rotation reports where institutional capital disclosed rotating, as of the latest public SEC 13F filings. It is data, not investment advice, a recommendation, or a prediction. Filings lag about 45 days and cover long US equity positions only. Past disclosed flows do not indicate future prices. Do your own research; consult a licensed advisor.
Connected entities for AMPY
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/AMPY/capital-change-brief"
Use Arkolith's capital_change_brief for AMPY. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + the live filing stream, joined for AMPY. Filings are public domain, sourced to SEC EDGAR.