Ownership history in PEAK6 Group LLC · 10 quarters on record
This page tracks every 13F SEC filing in which PEAK6 Group LLC reported a position in PENUMBRA INC (PEN). 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 Q2 | ADDED | 21,400 | +18,000 | +529.4% | 0.01% | $3.0M | $138.15 |
| 2018 Q2 | REDUCED | 3,400 | -2,900 | -46.0% | 0.00% | $470K | $138.15 |
| 2018 Q1 | ADDED | 6,300 | +1,600 | +34.0% | 0.00% | $729K | $115.65 |
| 2018 Q1 | REDUCED | 4,700 | -8,733 | -65.0% | 0.00% | $544K | $115.65 |
| 2018 Q1 | ADDED | 13,433 | +2,831 | +26.7% | 0.01% | $1.6M | $115.65 |
| 2017 Q4 | REDUCED | 10,602 | -7,598 | -41.7% | 0.00% | $998K | $94.10 |
| 2017 Q4 | ADDED | 18,200 | +13,600 | +295.7% | 0.01% | $1.7M | $94.10 |
| 2017 Q4 | REDUCED | 4,600 | -400 | -8.0% | 0.00% | $433K | $94.10 |
| 2017 Q2 | REDUCED | 5,000 | -1,500 | -23.1% | 0.00% | $439K | $87.75 |
| 2017 Q2 | INITIATED | 6,500 | — | — | 0.00% | $570K | $87.75 |
As of 2025 Q4 — sorted by position size