Ainos, Inc. (Nasdaq: AIMD), an SEC filer in Computer Peripheral Equipment, NEC, closed at $1.41, -0.7%, on 2026-08-28, with a market cap of $10M as of 2026-08-27, a return on equity of -128.0%, a net margin of -11897.0% and 3-year sales growth of -67.2%. Institutional ownership, earnings history and filed financials are on the tabs below.
| # | Holder | Shares | Value | % of shares out | Δ QoQ |
|---|---|---|---|---|---|
| 1 | GEODE CAPITAL MANAGEMENT, LLC | 53,07453,074 | $73,772 | 0.73% | NEW |
| 2 | Mariner, LLC | 30,80030,800 | $42,812 | 0.42% | ADD 35% |
| 3 | Keystone Financial Group | 14,55014,550 | $20,226 | 0.20% | NEW |
| 4 | VANGUARD FIDUCIARY TRUST CO | 14,16914,169 | $19,695 | 0.20% | NEW |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 9,2819,281 | $12,901 | 0.13% | NEW |
| 6 | Tower Research Capital LLC (TRC) | 4,4414,441 | $6,173 | 0.06% | ADD 48% |
| 7 | BlackRock, Inc. | 3,0653,065 | $4,260 | 0.04% | — |
| 8 | Seneschal Advisors, LLC | 1,8001,800 | $2,502 | 0.02% | — |
| 9 | Steward Partners Investment Advisory, LLC | 1,2081,208 | $1,679 | 0.02% | — |
| 10 | CITIGROUP INC | 501501 | $696 | 0.01% | TRIM -38% |
Ranked by each filer’s own reported value, not shares.
| Biggest buyers | Δ shares | Δ value | |
|---|---|---|---|
| GEODE CAPITAL MANAGEMENT, LLC | +53,074 | $73,773 | OPEN |
| Keystone Financial Group | +14,550 | $20,225 | OPEN |
| VANGUARD FIDUCIARY TRUST CO | +14,169 | $19,695 | OPEN |
| VANGUARD CAPITAL MANAGEMENT LLC | +9,281 | $12,901 | OPEN |
| Mariner, LLC | +8,000 | $11,120 | ADD |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC | −66,300 | $92,157 | CLOSE |
| DRW Securities, LLC | −66,211 | $92,033 | CLOSE |
| TWO SIGMA INVESTMENTS, LP | −48,309 | $67,150 | CLOSE |
| VANGUARD GROUP INC | −24,228 | $33,677 | CLOSE |
| CITADEL ADVISORS LLC | −10,196 | $14,172 | CLOSE |
Prior quarter split-rebased · 13Fs are long, US-listed only.
| Holder | 2024-Q4 | 2025-Q1 | 2025-Q2 | 2025-Q3 | 2025-Q4 | 2026-Q1 | Latest value |
|---|---|---|---|---|---|---|---|
| GEODE CAPITAL MANAGEMENT, LLC | 25K | 34K | — | — | — | 53K | $73,772 |
| Mariner, LLC | — | — | — | — | 23K | 31K | $42,812 |
| Keystone Financial Group | — | — | — | — | — | 15K | $20,226 |
| VANGUARD FIDUCIARY TRUST CO | — | — | — | — | — | 14K | $19,695 |
| VANGUARD CAPITAL MANAGEMENT LLC | — | — | — | — | — | 9K | $12,901 |
| Tower Research Capital LLC (TRC) | 9K | 5K | 1K | 2K | 3K | 4K | $6,173 |
| BlackRock, Inc. | 15K | 15K | 3K | 3K | 3K | 3K | $4,260 |
| Seneschal Advisors, LLC | — | — | — | 2K | 2K | 2K | $2,502 |
| Steward Partners Investment Advisory, LLC | — | — | 1K | 1K | 1K | 1K | $1,679 |
| CITIGROUP INC | — | — | — | 38 | 814 | 501 | $696 |
Green = added, red = trimmed, grey = held; a dash is a quarter with no 13F on file — a gap, not an exit.
Breaks = no 13F that quarter.
Short interest has its own tab now — open SI →
SEC Form 13F · ~10,250 filers, 10y · long-only, US-listed, filed ≤45d after quarter-end.
