Markus Gloeckler is CTO at FIRST SOLAR, INC. (FSLR). They have made 18 open-market trades across 1 company since 2020, most recently 2026-10-01.
CIK 0001819680
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 18 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| FSLR | 5,042 | $871K |
Shares reported on the most recent Form 4, priced at the 2026-10-02 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| FSLR | SELL · 10b5-1 | 2026-10-01 | 2026-10-02 | $174.00 | $139K | +2.8% | — | — |
| FSLR | SELL · 10b5-1 | 2026-08-03 | 2026-08-05 | $224.61 | $955K | -7.9% | -13.6% | — |
| FSLR | SELL | 2026-05-05 | 2026-05-05 | $215.63 | $91K | +6.8% | +44.2% | +6.6% |
| FSLR | SELL | 2026-03-16 | 2026-03-17 | $200.80 | $74K | -4.3% | -3.6% | +37.6% |
| FSLR | SELL | 2026-03-09 | 2026-03-10 | $190.36 | $252K | -2.1% | +0.1% | +39.8% |
| FSLR | SELL · 10b5-1 | 2026-03-04 | 2026-03-05 | $196.95 | $717K | +6.1% | +3.5% | +68.5% |
| FSLR | SELL | 2026-03-03 | 2026-03-03 | $195.93 | $671K | -0.4% | -0.8% | +53.9% |
| FSLR | SELL · 10b5-1 | 2025-05-28 | 2025-05-29 | $155.05 | $3.0M | +5.7% | +6.3% | +22.8% |
| FSLR | SELL | 2025-03-17 | 2025-03-18 | $133.75 | $51K | -0.4% | +0.1% | +37.0% |
| FSLR | SELL | 2025-03-07 | 2025-03-10 | $132.96 | $101K | -5.0% | -4.2% | +18.4% |
| FSLR | SELL · 10b5-1 | 2024-10-31 | 2024-11-04 | $198.52 | $1.4M | -6.5% | -3.4% | -19.9% |
| FSLR | SELL · 10b5-1 | 2024-04-04 | 2024-04-05 | $175.00 | $339K | +0.8% | +9.8% | +25.8% |
| FSLR | SELL · 10b5-1 | 2024-03-18 | 2024-03-20 | $150.00 | $71K | +10.0% | +15.2% | +72.6% |
| FSLR | SELL · 10b5-1 | 2024-03-07 | 2024-03-08 | $160.00 | $109K | -6.6% | +10.8% | +69.1% |
| FSLR | SELL · 10b5-1 | 2023-08-21 | 2023-08-22 | $182.00 | $84K | +5.3% | -6.0% | -10.0% |
| FSLR | SELL | 2022-08-17 | 2022-08-19 | $116.92 | $221K | +13.6% | +22.1% | +47.0% |
| FSLR | SELL | 2022-07-28 | 2022-07-29 | $90.00 | $72K | +15.7% | +23.0% | +32.5% |
| FSLR | SELL | 2022-06-03 | 2022-06-06 | $73.14 | $143K | -12.9% | -7.1% | +79.2% |
| FSLR | SELL | 2022-03-15 | 2022-03-16 | $71.46 | $186K | +9.7% | +2.6% | -19.2% |
| FSLR | SELL | 2022-03-08 | 2022-03-10 | $80.00 | $222K | +3.4% | +3.1% | -6.3% |
| FSLR | SELL | 2021-11-22 | 2021-11-23 | $112.82 | $136K | -6.9% | -18.0% | -38.2% |
| FSLR | SELL | 2021-08-10 | 2021-08-11 | $94.65 | $388K | +0.3% | +3.8% | +19.2% |
| FSLR | SELL | 2021-06-09 | 2021-06-10 | $77.30 | $440K | -3.0% | +16.6% | +18.0% |
| FSLR | SELL | 2021-03-24 | 2021-03-25 | $81.64 | $238K | -0.2% | +10.6% | -1.2% |
| FSLR | SELL | 2021-03-01 | 2021-03-02 | $82.48 | $222K | -1.7% | +3.4% | -7.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.