ATHR — ATHEROS COMMUNICATIONS
As of Q2 2026, 3 SEC-registered investment managers reported holding ATHR (ATHEROS COMMUNICATIONS) in their latest 13F filings, with a combined reported value of $207.12K across 43.98K shares. That is +14.6% by share count (+5.60K shares) versus the previous quarter, while reported value moved +129.7%. Ownership is concentrated: the five largest holders account for 100.0% of reported value and the top ten for 100.0%.
Compared with the prior quarter, 2 added to existing stakes, 1 trimmed. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.
ATHR is classified in the Technology sector.
All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.
| Fund | Quarter | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|---|
| Millennium Management history | Q2 2025 | 27.05K | $369.17K | 0.00% | New |
| Vanguard Group history | Q4 2025 | 45.14K | $279.85K | 0.00% | Add |
| Citadel Advisors history | Q4 2025 | 40.72K | $252.44K | 0.00% | New |
| Geode Capital Management history | Q2 2026 | 23.55K | $110.92K | 0.00% | Reduce |
| BlackRock Inc history | Q2 2026 | 16.72K | $78.74K | 0.00% | Add |
| UBS Group AG history | Q2 2026 | 3.71K | $17.46K | 0.00% | Add |
| Bank of America Corp history | Q4 2025 | 2 | $12 | 0.00% | Hold |
New Positions (Q2 2026)
No fund opened a new position this quarter.
Fully Exited (vs previous quarter)
No tracked fund fully exited this quarter.
Fund Position History — shares by quarter (top 7 funds)
| Fund | Q2 2025 | Q3 2025 | Q4 2025 | Q1 2026 | Q2 2026 |
|---|---|---|---|---|---|
| Geode Capital Management | 21.53K | 23.16K | 23.52K | 26.96K | 23.55K |
| BlackRock Inc | 5.08K | 5.22K | 9.59K | 10.89K | 16.72K |
| UBS Group AG | — | 199 | 323 | 526 | 3.71K |
| Citadel Advisors | — | — | 40.72K | — | — |
| Bank of America Corp | 16 | 2 | 2 | — | — |
| Vanguard Group | 32.42K | 32.42K | 45.14K | — | — |
| Millennium Management | 27.05K | — | — | — | — |
▲ Bought Low (fund opened/added, stock rose ≥5% next quarter) ▼ Sold High (fund reduced, stock fell ≥5% next quarter)
Drag / scroll to zoom · Default shows the most recent year · Annotations come from quarterly fund actions in 13F filings · Hover a marker for details