Among active 13F managers last quarter, 2 opened and 1 added, while 2 reduced; the largest holder to move was Citadel Advisors LLC (new position). No open-market insider trades in the last 180 days.
Funds lean in and no leg opposes.
17 tracked 13F filers disclose a position in TOMZ as of the latest SEC 13F filings, a combined $859K 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 | Vanguard Capital Management LLC | 601K | $495K | ▼−12% Reduced · −78K sh | Q2 2026 | |
| 2 | Geode Capital Management, LLC | 125K | $103K | ▼−2.0% Reduced · −3K sh | Q2 2026 | |
| 3 | Citadel Advisors LLC | 109K | $90K | ▲New +109K sh | Q2 2026 | |
| 4 | Vanguard Fiduciary Trust Co | 74K | $61K | ▲+88% Added · +35K sh | Q2 2026 | |
| 5 | State Street Corp | 52K | $43K | —Held | Q2 2026 | |
| 6 | Spinnaker Investment Group, LLC | 24K | $20K | ▲+62% Added · +9K sh | Q2 2026 | |
| 7 | Choreo, LLC | 17K | $14K | ▼−8.4% Reduced · −2K sh | Q2 2026 | |
| 8 | Northern Trust Corp | 16K | $9K | —Held | Q1 2026 | |
| 9 | Two Sigma Securities, LLC | 13K | $11K | ▲New +13K sh | Q2 2026 | |
| 10 | Commonwealth Equity Services, LLC | 11K | $6K | —Held | Q1 2026 | |
| 11 | Vanguard Global Advisers, LLC | 4K | $4K | —Held | Q2 2026 | |
| 12 | UBS Group AG | 4K | $2K | ▲+62% Added · +2K sh | Q1 2026 | |
| 13 | Tower Research Capital LLC (TRC) | 4K | $2K | ▼−6.7% Reduced · −282 sh | Q1 2026 | |
| 14 | Allworth Financial LP | 344 | $191 | —Held | Q1 2026 | |
| 15 | Citigroup Inc | 16 | $9 | ▼−98% Reduced · −907 sh | Q1 2026 | |
| 16 | Morgan Stanley | 1 | $1 | —Held | Q1 2026 | |
| 17 | SBI Securities Co., Ltd. | 1 | $1 | —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, 2 funds opened a new position in TOMZ and 1 added to an existing one, while 2 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 | 6 funds | $3.1B |
| Microsoft CorpMSFT | 6 funds | $1.7B |
| Alphabet Inc-CL AGOOGL | 6 funds | $1.3B |
| Broadcom IncAVGO | 6 funds | $1.2B |
| Eli Lilly & CoLLY | 6 funds | $1.2B |
| Alphabet Inc-CL CGOOG | 6 funds | $1.1B |
| Advanced Micro DevicesAMD | 6 funds | $1.0B |
| Micron Technology IncMU | 6 funds | $951.7M |
| Abbvie IncABBV | 6 funds | $847.2M |
| Applied Materials IncAMAT | 6 funds | $846.6M |
| Meta Platforms Inc-Class AMETA | 6 funds | $733.6M |
| Coca-Cola CoKO | 6 funds | $687.1M |
Ranked by how many of TOMZ's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in TOMZ.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Aug 22, 2023 | Shane Dr. Halden Stuart | CEO, Director, 10% Owner | Buy (P) | 3K | $3K |
| Aug 18, 2023 | Shane Dr. Halden Stuart | CEO, Director, 10% Owner | Buy (P) | 3K | $3K |
| Sep 3, 2021 | Shane Dr. Halden Stuart | Chief Executive Officer, Director, 10% Owner | Buy (P) | 21K | $43K |
| Sep 2, 2021 | Shane Dr. Halden Stuart | Chief Executive Officer, Director, 10% Owner | Buy (P) | 22K | $44K |
| Feb 16, 2016 | Fred Edward J | Director | Buy (P) | 60K | $30K |
| Feb 9, 2016 | Fred Edward J | Director | Buy (P) | 15K | $7K |
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 | 3 | 5 | – |
Insiders Form 4 open-market | 0 | 0 | $0 |
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 TOMZ
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/TOMZ/capital-change-brief"
Use Arkolith's capital_change_brief for TOMZ. 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 TOMZ. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.