Cumulative holdings, every disclosed buy, share price, and the best-fit saturation curve.
Satsuma Technology Plc holds 668.57 BTC across 6 disclosed purchases. Average cost basis $86,862 per BTC. Last 30 days: 0 BTC. Last 90 days: 0 BTC — 0/week. Best fit: Richards (R² 0.92). Curve flattens toward 1,200 BTC, steepest accumulation Jul 2025.
All BTC transactions, most recent first.
| Date | BTC | Spot | USD Cost | Cumulative |
|---|---|---|---|---|
| Apr 22, 2026 | 22.77 | $58.5K | $1.3M | 668.57 |
| Apr 2, 2026 | 25.7 | $53.9K | $1.4M | 645.8 |
| Dec 11, 2025 | −579 | $90.1K | $52.2M | 620.1 |
| Sep 1, 2025 | 45.7 | $83.2K | $3.8M | 1,199 |
| Aug 6, 2025 | 1,102 | $88.3K | $97.3M | 1,153 |
| Jul 15, 2025 | 22.8 | $87.7K | $2.0M | 51.4 |
| Jul 13, 2025 | 28.6 | $87.4K | $2.5M | 28.6 |
Cumulative BTC held — the staircase. Each step is a disclosed purchase; the step height is the size of the buy.
Purchase bubbles — one per buy. Bubble size is the BTC count; vertical position is the per-BTC cost basis. Small-and-high is a small buy at a high price; big-and-low is a big buy made cheap.
Share price — the secondary line on the right axis. Did the company stack faster when its equity ran hot?
Regression fit — the best of a Richards and a Gompertz saturation curve, chosen by log-R². It has to flatten: there are only 21 million Bitcoin.
Controls — Linear/Log switches the BTC axis. Play animates the curve forward through disclosure time. ‹ › steps through the cohort by holdings.