Efficient Frontier Advisors LLC's ownership history for PRF

Efficient Frontier Advisors LLC currently holds 6.8K shares with a market value of $276.3K. It started holding PRF on 2024-09-30. At its peak, it held 6.8K shares on 2025-06-30. Its highest holding value was $276.3K on 2025-06-30. At its lowest, it held 6.7K shares on 2024-09-30, with a value of $278 on 2024-09-30. In the recent 180 days, Efficient Frontier Advisors LLC has increased its shares by 59.