The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
This stock page is the Follow view. The Build view lets your agent query KOSS owners, fund changes, insider filings, and source links through REST or MCP.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/KOSS"
Use Arkolith to show who owns KOSS, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | VANGUARD FIDUCIARY TRUST CO | $112K | 31K | ▲New +31K sh | Q1 2026 | |
| 2 | STATE STREET CORP | $64K | 18K | —Held | Q1 2026 | |
| 3 | NewEdge Advisors, LLC | $55K | 15K | ▲+46% Added · +5K sh | Q1 2026 | |
| 4 | SBI Securities Co., Ltd. | $430 | 120 | —Held | 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.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Feb 17, 2026 | KOSS MICHAEL J | President and CEO, Director, 10% Owner | Other (J) | 12K | $0 |
| Dec 2, 2025 | LILLIE LENORE | Director | Buy (P) | 3K | $12K |
| Jun 13, 2025 | Koss Michael J Jr | VP - Marketing & Product | Option exercise (M) | 25K | $47K |
| Jun 13, 2025 | Koss Michael J Jr | VP - Marketing & Product | Option exercise (M) | 25K | $0 |
| Jun 13, 2025 | Koss Michael J Jr | VP - Marketing & Product | Sell (S) | 25K | $118K |
| Jun 12, 2025 | KOSS JOHN C JR | Vice President - Sales | Option exercise (M) | 2K | $3K |
| Jun 12, 2025 | KOSS JOHN C JR | Vice President - Sales | Sell (S) | 2K | $8K |
| Jun 12, 2025 | Koss Michael J Jr | VP - Marketing & Product | Sell (S) | 6K | $29K |
| Jun 12, 2025 | Koss Michael J Jr | VP - Marketing & Product | Option exercise (M) | 6K | $11K |
| Jun 12, 2025 | Koss Michael J Jr | VP - Marketing & Product | Option exercise (M) | 6K | $0 |
| Jun 12, 2025 | KOSS JOHN C JR | Vice President - Sales | Option exercise (M) | 2K | $0 |
| Jun 11, 2025 | KOSS JOHN C JR | Vice President - Sales | Sell (S) | 24K | $133K |
| Company | Co-held by | Combined value |
|---|---|---|
| APPLE INCAAPL | 14 funds | $34.3B |
| META PLATFORMS INC-CLASS AMETA | 14 funds | $13.6B |
| PFIZER INCPFE | 14 funds | $12.9B |
| WELLS FARGO & COWFC | 14 funds | $12.3B |
| WALT DISNEY CO/THEDIS | 14 funds | $11.7B |
| PEPSICO INCPEP | 14 funds | $11.4B |
| VISA INC-CLASS A SHARESV | 14 funds | $10.1B |
| GILEAD SCIENCES INCGILD | 14 funds | $9.5B |
| MERCK & CO. INC.MRK | 14 funds | $9.3B |
| COMCAST CORP-CLASS ACMCSA | 14 funds | $8.8B |
| BERKSHIRE HATHAWAY INC-CL BBRK/B | 14 funds | $8.8B |
| ALTRIA GROUP INCMO | 14 funds | $8.0B |
Ranked by how many of KOSS's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).
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. Every panel above is one call to the Arkolith API & MCP server.