Among active 13F managers last quarter, 3 opened and 1 added, while 1 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.
25 tracked 13F filers disclose a position in KOSS as of the latest SEC 13F filings, a combined $2.1M 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 | 190K | $760K | —Held | Q2 2026 | |
| 2 | BlackRock, Inc. | 95K | $381K | ▲+6.0% Added · +5K sh | Q2 2026 | |
| 3 | Geode Capital Management, LLC | 59K | $239K | ▲+6.4% Added · +4K sh | Q2 2026 | |
| 4 | Citadel Advisors LLC | 33K | $133K | ▲New +33K sh | Q2 2026 | |
| 5 | Vanguard Fiduciary Trust Co | 31K | $123K | ▼−1.9% Reduced · −594 sh | Q2 2026 | |
| 6 | Dimensional Fund Advisors LP | 22K | $77K | ▼−7.4% Reduced · −2K sh | Q1 2026 | |
| 7 | State Street Corp | 18K | $72K | —Held | Q2 2026 | |
| 8 | NewEdge Advisors, LLC | 15K | $62K | —Held | Q2 2026 | |
| 9 | James Investment Research, Inc. | 15K | $62K | —Held | Q2 2026 | |
| 10 | Northern Trust Corp | 14K | $51K | —Held | Q1 2026 | |
| 11 | XTX Topco Ltd | 11K | $39K | ▼−11% Reduced · −1K sh | Q1 2026 | |
| 12 | PNC Financial Services Group, Inc. | 7K | $25K | —Held | Q1 2026 | |
| 13 | UBS Group AG | 6K | $22K | ▼−24% Reduced · −2K sh | Q1 2026 | |
| 14 | Vanguard Global Advisers, LLC | 2K | $8K | —Held | Q2 2026 | |
| 15 | Tower Research Capital LLC (TRC) | 1K | $4K | ▲+55% Added · +429 sh | Q1 2026 | |
| 16 | Activest Wealth Management | 1K | $4K | —Held | Q2 2026 | |
| 17 | N.E.W. Advisory Services LLC | 1K | $4K | —Held | Q2 2026 | |
| 18 | Creative Financial Designs Inc | 300 | $1K | —Held | Q2 2026 | |
| 19 | SBI Securities Co., Ltd. | 120 | $481 | —Held | Q2 2026 | |
| 20 | Morgan Stanley | 80 | $286 | ▼−97% Reduced · −3K sh | Q1 2026 | |
| 21 | Osaic Holdings, Inc. | 50 | $179 | —Held | Q1 2026 | |
| 22 | Crewe Advisors LLC | 20 | $81 | —Held | Q2 2026 | |
| 23 | Parallel Advisors, LLC | 10 | $36 | ▲New +10 sh | Q1 2026 | |
| 24 | Caitong International Asset Management Co., Ltd | 2 | $8 | ▲New +2 sh | Q2 2026 | |
| 25 | Citigroup Inc | 1 | $4 | ▲New +1 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, 3 funds opened a new position in KOSS and 1 added to an existing one, while 1 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 | 9 funds | $816.4M |
| Apple IncAAPL | 9 funds | $651.0M |
| Alphabet Inc-CL AGOOGL | 9 funds | $321.4M |
| Amazon.com IncAMZN | 9 funds | $285.1M |
| Micron Technology IncMU | 9 funds | $236.9M |
| Tesla IncTSLA | 9 funds | $234.2M |
| Berkshire Hathaway Inc-CL BBRK/B | 9 funds | $140.7M |
| Eli Lilly & CoLLY | 9 funds | $124.0M |
| JPMorgan Chase & CoJPM | 9 funds | $109.0M |
| Chevron CorpCVX | 9 funds | $89.8M |
| Johnson & JohnsonJNJ | 9 funds | $86.7M |
| Walmart IncWMT | 9 funds | $79.1M |
Ranked by how many of KOSS's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in KOSS.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Dec 2, 2025 | Lillie Lenore | Director | Buy (P) | 3K | $12K |
| Jun 13, 2025 | Koss Michael J Jr | VP - Marketing & Product | Sell (S) | 25K | $118K |
| Jun 12, 2025 | Koss Michael J Jr | VP - Marketing & Product | Sell (S) | 6K | $29K |
| Jun 12, 2025 | Koss John C Jr | Vice President - Sales | Sell (S) | 2K | $8K |
| Jun 11, 2025 | Koss John C Jr | Vice President - Sales | Sell (S) | 24K | $133K |
| Jun 10, 2025 | Koss John C Jr | Vice President - Sales | Sell (S) | 25K | $145K |
| Dec 12, 2024 | Koss John C Jr | Vice President - Sales | Sell (S) | 25K | $185K |
| May 20, 2024 | Koss John C Jr | Vice President - Sales | Sell (S) | 25K | $131K |
| Jun 2, 2022 | Sweasy William Jesse | Director | Buy (P) | 3K | $21K |
| Jun 1, 2022 | Sweasy William Jesse | Director | Buy (P) | 17K | $119K |
| Nov 2, 2021 | Smith David Donnan | Chief Financial Officer | Sell (S) | 10K | $155K |
| Sep 15, 2021 | Koss Michael J Jr | VP - Marketing & Product | Sell (S) | 24K | $427K |
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 KOSS
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/KOSS/capital-change-brief"
Use Arkolith's capital_change_brief for KOSS. 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 KOSS. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.