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Held by 235 of 5,944 reporting institutions (93th percentile) — extremely crowded.
Data as of Q1 2026
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No trend data available for this metric.
Total shares institutions bought (green) vs sold (red) each quarter across all holders.
Inferred from quarter-over-quarter change in each fund's 13F position (new stakes count as buys, exits as sells). Not tick-level trades.
Top 40 institutional holders — bubble size is position value, color is the move since last quarter. Hover any holder for detail.
Drag any bubble to rearrange · size = dollar value of the position
Is the value real, and is the business safe? Academic scores + earnings quality + solvency, from SEC filings.
5/8 of the 9 checks — 1 couldn't be scored (see above), so the score is out of the 8 with data.
Safe > 2.99 · grey 1.81–2.99 · distress < 1.81 · book equity (no price)
Eight indices comparing this year to last (receivables, margins, asset quality, growth, accruals, leverage). Above −1.78 suggests possible manipulation; below −2.22 is clean.
A screen, not proof — high growth alone can raise it.
Cash-conversion data unavailable. Lower/negative accruals = higher quality (Sloan).
Coverage data unavailable.
F-Score (0–9 fundamental momentum), Altman Z (distress risk), and Beneish M (earnings-manipulation screen) are academic models computed from the SEC filings. Screens and context — educational, not recommendations.
What the company returns to shareholders — and whether it's covered by cash.
No dividend to cover. Last year: $0 dividends + $0 buybacks = $0 returned on -$36M FCF.
Yields use the latest fiscal-year dividends/buybacks over current market cap. Dividends and buybacks from the SEC cash-flow statement; payout coverage vs net income and free cash flow. Educational — not a recommendation.
How management deployed cash over 5 years — and what it earned on reinvestment.
A reinvestment story — most cash went back into growth rather than to shareholders.
Operating income fell despite reinvestment — a warning on capital productivity. Current ROIC on all capital: -42%. Rough measure (includes maintenance capex).
Cash uses aggregated from the SEC cash-flow statement over 5 fiscal years. "Return on reinvestment" is a rough proxy — operating-income change ÷ cumulative CapEx + M&A — and includes maintenance capex. Educational — not a recommendation.
How much the company owes, how it's trended, and how comfortably it's serviced.
Insufficient EBITDA/debt history.
Green ≤ 1.5× · amber ≤ 3× · red > 3× (leverage relative to cash earnings).
Interest expense isn't separately reported — often netted into “other income (expense), net.”
Cash vs short-term debt unavailable.
Short-term / long-term split not separately reported.
Debt, cash, interest and equity from the SEC balance sheet & income statement. Effective rate = interest ÷ average debt. Educational — not a recommendation.
How a revenue dollar becomes profit — FY2025
Each value shows its share of revenue below it (common-size).
| Line Item | FY2025 | FY2024 | FY2023 | FY2022 | FY2021 |
|---|---|---|---|---|---|
| Revenue | $73.0M 100.0% | $24.2M 100.0% | $9.1M 100.0% | $4.4M 100.0% | $2.8M 100.0% |
| Cost of Revenue | $64.7M 88.7% | $42.5M 175.8% | $23.7M 262.1% | $10.1M 228.2% | $7.1M 256.2% |
| Gross Profit | $8.3M 11.3% | -$18.3M -75.8% | -$14.7M -162.1% | -$5.7M -128.2% | -$4.3M -156.2% |
| Research & Development | $9.4M 12.9% | $7.3M 30.4% | $3.7M 40.6% | $2.0M 46.0% | $1.4M 52.3% |
| Selling, General & Admin | $23.0M 31.4% | $18.7M 77.5% | $20.4M 224.9% | $10.4M 235.0% | $4.8M 174.7% |
| Total Operating Expenses | $54.9M 75.2% | $27.9M 115.6% | $24.0M 265.5% | $12.4M 280.9% | $6.3M 227.1% |
| Operating Income | -$46.6M -63.9% | -$46.3M -191.4% | -$38.7M -427.6% | -$18.0M -409.2% | -$10.6M -383.2% |
| Other Income (Expense), net | $2.6M 3.6% | $1.6M 6.6% | $1.9M 21.4% | $709K 16.1% | $727K 26.2% |
| Pretax Income | -$44.0M -60.3% | -$44.7M -184.8% | -$36.8M -406.2% | -$17.3M -393.1% | -$9.9M -357.0% |
| Income Tax Expense | $0 0.0% | $0 0.0% | $0 0.0% | $0 0.0% | $0 0.0% |
| Net Income | -$44.0M -60.3% | -$44.7M -184.8% | -$36.8M -406.2% | -$17.3M -393.1% | -$9.9M -357.0% |
| Per Share | |||||
| EPS (Basic) | $-0.35 | $-0.45 | $-0.43 | $-0.24 | $-0.15 |
| EPS (Diluted) | $-0.35 | $-0.45 | $-0.43 | $-0.24 | $-0.15 |
| Weighted Avg Shares (Basic) | 124.6M | 101.9M | 86.2M | 71.3M | 65.8M |
| Weighted Avg Shares (Diluted) | 124.6M | 101.9M | 86.2M | 71.3M | 65.8M |
Source: SEC EDGAR XBRL filings (annual, fiscal year). Quarterly flow items are derived from cumulative filings; balance-sheet figures are as-of each period end. Ratios and margins are computed, not reported.
Total return (dividends reinvested) vs the market, from quarter-end prices.
Above 0 = ahead of the S&P 500 since the window start; below 0 = behind. Rising means it's pulling ahead.
How far the stock fell below its prior peak. Deeper, longer drawdowns = a rougher ride to the same return.
Quarter-end, dividend-adjusted (total return). Beta & volatility from quarterly returns (annualized). Benchmark is the S&P 500 (SPY total return). Annual returns compound the quarters ending in each calendar year; the first and last years in a window may be partial. Past performance doesn't predict future results.
No current price collected.
Where each multiple sits in its own 4-yr range
Dot = today · shaded = middle 50% · line = median. Lower percentile = cheaper vs its own 4-yr history.
Is the profit real, and how strong is the balance sheet?
FY2025 · every deduction from revenue to net income
DuPont — the three levers
Watch the leverage lever — a chunk of ROE comes from the balance sheet.
What the company owes vs. what it holds
Year-by-year maturities aren't in SEC companyfacts (footnote-only), so this shows the debt/cash structure and net leverage instead.
Latest year: profit growth vs revenue growth
Low operating leverage — profit tracks sales closely (stable, less cyclical).
Each line as % of revenue — the trend in color
| % of revenue | FY2021 | FY2022 | FY2023 | FY2024 | FY2025 |
|---|---|---|---|---|---|
| Cost of Revenue | 256.2 | 228.2 | 262.1 | 175.8 | 88.7 |
| Gross Profit | -156.2 | -128.2 | -162.1 | -75.8 | 11.3 |
| R&D | 52.3 | 46.0 | 40.6 | 30.4 | 12.9 |
| SG&A | 174.7 | 235.0 | 224.9 | 77.5 | 31.4 |
| Operating Income | -383.2 | -409.2 | -427.6 | -191.4 | -63.9 |
| Income Tax | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Net Income | -357.0 | -393.1 | -406.2 | -184.8 | -60.3 |
Green = margin-favorable vs the row's own range · red = unfavorable.
The metrics that matter, over time
A 30-second read on AMPX: price, valuation, headline fundamentals, and an auto-generated scorecard from SEC filings. Flags are rule-based signals, not recommendations.