Among active 13F managers last quarter, 16 opened and 14 added, while 7 reduced; the largest holder to move was Wexford Capital LP (−45%). Over the last 180 days, 2 insiders bought and none sold, a net +$10.5M in open-market trades.
Funds lean in and no leg opposes.
87 tracked 13F filers disclose a position in TUSK as of the latest SEC 13F filings, a combined $71.7M 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 | Wexford Capital LP | 12.1M | $39.2M | ▼−45% Reduced · −10.0M sh | Q2 2026 | |
| 2 | Adage Capital Partners GP, L.L.C. | 4.6M | $11.2M | —Held | Q1 2026 | |
| 3 | Vanguard Capital Management LLC | 1.1M | $3.4M | ▲+29% Added · +240K sh | Q2 2026 | |
| 4 | Peapod Lane Capital LLC | 808K | $2.6M | ▲+35% Added · +208K sh | Q2 2026 | |
| 5 | Dimensional Fund Advisors LP | 686K | $1.7M | ▼−1.9% Reduced · −13K sh | Q1 2026 | |
| 6 | Citadel Advisors LLC | 452K | $1.5M | ▲+36% Added · +121K sh | Q2 2026 | |
| 7 | BlackRock, Inc. | 408K | $1.3M | ▼−72% Reduced · −1.0M sh | Q2 2026 | |
| 8 | Bridgeway Capital Management, LLC | 332K | $1.1M | —Held | Q2 2026 | |
| 9 | Geode Capital Management, LLC | 306K | $996K | ▼−50% Reduced · −305K sh | Q2 2026 | |
| 10 | Empowered Funds, LLC | 241K | $591K | ▲+10% Added · +22K sh | Q1 2026 | |
| 11 | Renaissance Technologies LLC | 232K | $568K | ▲+25% Added · +46K sh | Q1 2026 | |
| 12 | Goldman Sachs Group Inc | 223K | $548K | ▲+148% Added · +134K sh | Q1 2026 | |
| 13 | Northern Trust Corp | 187K | $458K | ▲+11% Added · +19K sh | Q1 2026 | |
| 14 | Vanguard Fiduciary Trust Co | 162K | $526K | ▼−4.9% Reduced · −8K sh | Q2 2026 | |
| 15 | Boston Partners | 154K | $378K | ▲New +154K sh | Q1 2026 | |
| 16 | Round Rock Advisors LLC | 153K | $497K | ▲New +153K sh | Q2 2026 | |
| 17 | Morgan Stanley | 153K | $374K | ▼−48% Reduced · −140K sh | Q1 2026 | |
| 18 | Bank of New York Mellon Corp | 133K | $325K | ▼−0.1% Reduced · −135 sh | Q1 2026 | |
| 19 | Centiva Capital, LP | 131K | $425K | ▲+18% Added · +20K sh | Q2 2026 | |
| 20 | Marquette Asset Management, LLC | 110K | $357K | ▲New +110K sh | Q2 2026 | |
| 21 | Stifel Financial Corp | 106K | $259K | —Held | Q1 2026 | |
| 22 | State Street Corp | 102K | $331K | ▼−76% Reduced · −320K sh | Q2 2026 | |
| 23 | Osaic Holdings, Inc. | 72K | $177K | ▼−9.1% Reduced · −7K sh | Q1 2026 | |
| 24 | Point72 Asset Management, L.P. | 72K | $234K | ▲New +72K sh | Q2 2026 | |
| 25 | Russell Investments Group, Ltd. | 68K | $167K | ▼−73% Reduced · −179K 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, 16 funds opened a new position in TUSK and 14 added to an existing one, while 7 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 | 40 funds | $103.8B |
| Microsoft CorpMSFT | 39 funds | $72.3B |
| Amazon.com IncAMZN | 39 funds | $55.9B |
| Alphabet Inc-CL AGOOGL | 39 funds | $35.7B |
| Eli Lilly & CoLLY | 39 funds | $21.6B |
| JPMorgan Chase & CoJPM | 39 funds | $18.1B |
| Broadcom IncAVGO | 38 funds | $41.6B |
| Meta Platforms Inc-Class AMETA | 38 funds | $29.5B |
| Visa Inc-Class A SharesV | 38 funds | $17.1B |
| Micron Technology IncMU | 38 funds | $12.1B |
| Walmart IncWMT | 38 funds | $11.2B |
| Advanced Micro DevicesAMD | 38 funds | $10.3B |
Ranked by how many of TUSK's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in TUSK.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jun 17, 2026 | Wexford Capital Lp | Chief Business Officer, Director, 10% Owner | Buy (P) | 4.0M | $10.5M |
| Jun 12, 2026 | Amron Arthur H | Director | Buy (P) | 2K | $7K |
| Jun 11, 2026 | Amron Arthur H | Director | Buy (P) | 3K | $8K |
| May 28, 2026 | Amron Arthur H | Director | Buy (P) | 3K | $10K |
| May 26, 2026 | Amron Arthur H | Director | Buy (P) | 3K | $8K |
| Dec 11, 2025 | Amron Arthur H | Director | Buy (P) | 10K | $19K |
| May 22, 2025 | Smith Arthur L | Director | Sell (S) | 20K | $50K |
| May 20, 2025 | Smith Arthur L | Director | Sell (S) | 50K | $126K |
| May 19, 2025 | Smith Arthur L | Director | Sell (S) | 15K | $37K |
| Dec 12, 2024 | Amron Arthur H | Director | Buy (P) | 1K | $3K |
| Nov 25, 2024 | Booker Corey J. | Director | Sell (S) | 15K | $52K |
| Nov 22, 2024 | Booker Corey J. | Director | Sell (S) | 10K | $34K |
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 | 30 | 25 | – |
Insiders Form 4 open-market | 2 | 0 | +$10.5M |
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.
No filings captured for this ticker in the live stream yet.
Connected entities for TUSK
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/TUSK/capital-change-brief"
Use Arkolith's capital_change_brief for TUSK. 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 TUSK. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.