Ownership history in PEAK6 Group LLC · 53 quarters on record
This page tracks every 13F SEC filing in which PEAK6 Group LLC reported a position in DOLBY LABORATORIES INC COM (DLB). 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) |
|---|---|---|---|---|---|---|---|
| 2018 Q1 | REDUCED | 7,058 | -1,409 | -16.6% | 0.00% | $449K | $56.99 |
| 2017 Q3 | ADDED | 8,467 | +4,667 | +122.8% | 0.00% | $487K | $51.31 |
| 2017 Q3 | REDUCED | 3,800 | -16,554 | -81.3% | 0.00% | $219K | $51.31 |
| 2017 Q1 | ADDED | 20,354 | +18,978 | +1379.2% | 0.01% | $1.1M | $46.49 |
| 2016 Q4 | REDUCED | 1,376 | -10,024 | -87.9% | 0.00% | $62K | $39.97 |
| 2016 Q4 | REDUCED | 11,400 | -36,100 | -76.0% | 0.00% | $515K | $39.97 |
| 2016 Q3 | REDUCED | 47,500 | -24,700 | -34.2% | 0.02% | $2.6M | $47.88 |
| 2016 Q3 | ADDED | 72,200 | +13,200 | +22.4% | 0.03% | $3.9M | $47.88 |
| 2016 Q2 | ADDED | 59,000 | +38,400 | +186.4% | 0.02% | $2.8M | $42.09 |
| 2016 Q2 | REDUCED | 20,600 | -19,700 | -48.9% | 0.01% | $986K | $42.09 |
As of 2025 Q4 — sorted by position size