Ownership history in Walleye Trading LLC · 100 quarters on record
This page tracks every 13F SEC filing in which Walleye Trading LLC reported a position in MONOLITHIC PWR SYS INC (MPWR). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.
| Quarter | Action | Shares | Change | Chg % | % of Fund | Mkt Value | Price (EOQ) |
|---|---|---|---|---|---|---|---|
| 2025 Q4 | REDUCED | 10,200 | -7,000 | -40.7% | 0.01% | $9.2M | $906.36 |
| 2025 Q4 | REDUCED | 17,200 | -8,300 | -32.5% | 0.02% | $15.6M | $906.36 |
| 2025 Q3 | ADDED | 25,500 | +16,200 | +174.2% | 0.04% | $23.5M | $919.09 |
| 2025 Q3 | ADDED | 9,300 | +8,029 | +631.7% | 0.01% | $8.6M | $919.09 |
| 2025 Q3 | REDUCED | 1,271 | -8,429 | -86.9% | 0.00% | $1.2M | $919.09 |
| 2025 Q2 | REDUCED | 9,700 | -8,900 | -47.8% | 0.01% | $7.1M | $728.86 |
| 2025 Q2 | ADDED | 18,600 | +18,491 | +16964.2% | 0.02% | $13.6M | $728.86 |
| 2025 Q2 | REDUCED | 109 | -2,240 | -95.4% | 0.00% | $80K | $728.86 |
| 2025 Q1 | REDUCED | 2,349 | -18,851 | -88.9% | 0.00% | $1.4M | $576.76 |
| 2025 Q1 | ADDED | 21,200 | +6,900 | +48.3% | 0.03% | $12.3M | $576.76 |
As of 2025 Q4 — sorted by position size