Among active 13F managers last quarter, 2 opened and none reduced or exited; 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.
9 tracked 13F filers disclose a position in SONM as of the latest SEC 13F filings, a combined $587K 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 | UBS Group AG | 36K | $146K | ▲+317% Added · +28K sh | Q1 2026 | |
| 2 | C2C Wealth Management, LLC | 36K | $183K | ▲+78% Added · +16K sh | Q2 2026 | |
| 3 | BlackRock, Inc. | 14K | $72K | —Held | Q2 2026 | |
| 4 | Citadel Advisors LLC | 13K | $65K | ▲New +13K sh | Q2 2026 | |
| 5 | Geode Capital Management, LLC | 13K | $64K | ▼−15% Reduced · −2K sh | Q2 2026 | |
| 6 | Vanguard Capital Management LLC | 6K | $30K | ▲+21% Added · +1K sh | Q2 2026 | |
| 7 | Vanguard Fiduciary Trust Co | 4K | $23K | —Held | Q2 2026 | |
| 8 | Tower Research Capital LLC (TRC) | 661 | $3K | ▲New +661 sh | Q1 2026 | |
| 9 | SBI Securities Co., Ltd. | 214 | $1K | —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 SONM, while none reduced or exited. 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 | 3 funds | $2.9B |
| Amazon.com IncAMZN | 3 funds | $2.7B |
| Apple IncAAPL | 3 funds | $2.4B |
| Microsoft CorpMSFT | 3 funds | $1.6B |
| Alphabet Inc-CL AGOOGL | 3 funds | $1.2B |
| Electronic Arts IncEA | 3 funds | $1.2B |
| Warner Bros Discovery IncWBD | 3 funds | $1.2B |
| Broadcom IncAVGO | 3 funds | $1.2B |
| Eli Lilly & CoLLY | 3 funds | $1.2B |
| BlackRock IncBLK | 3 funds | $1.1B |
| Alphabet Inc-CL CGOOG | 3 funds | $995.9M |
| Advanced Micro DevicesAMD | 3 funds | $975.2M |
Ranked by how many of SONM's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in SONM.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jun 30, 2025 | Lytton Laurence W | 10% Owner | Sell (S) | 401K | $557K |
| Jun 26, 2025 | Lytton Laurence W | 10% Owner | Sell (S) | 466K | $700K |
| Apr 23, 2025 | Becher Charles | See Remarks | Sell (S) | 31K | $45K |
| Apr 23, 2025 | Cassano James S | Director | Sell (S) | 23K | $34K |
| Apr 23, 2025 | Crolius Clayton | Chief Financial Officer | Sell (S) | 12K | $17K |
| Apr 23, 2025 | Mulica Michael C | Director | Sell (S) | 28K | $40K |
| Apr 23, 2025 | Steenstra Jack | Director | Sell (S) | 23K | $34K |
| Apr 23, 2025 | Wang Jeffrey | Director | Sell (S) | 4K | $6K |
| Nov 13, 2024 | Mulica Michael C | Director | Sell (S) | 3K | $8K |
| Jul 19, 2024 | Wang Jeffrey | Director, 10% Owner | Sell (S) | 2K | $6K |
| Jul 19, 2024 | Cassano James S | Director | Sell (S) | 2K | $6K |
| Jul 19, 2024 | Steenstra Jack | Director | Sell (S) | 2K | $6K |
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 | 1 | – |
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 SONM
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/SONM/capital-change-brief"
Use Arkolith's capital_change_brief for SONM. 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 SONM. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.