CIK: 0001009003 | WALTHAM, MA
| Quarter | Form Type | Holdings | Value | Filed | SEC |
|---|---|---|---|---|---|
| 13F-HR | 166 | $308.3M | 2026-11-02 | SEC ↗ | |
| 13F-HR | 175 | $303.5M | 2026-08-03 | SEC ↗ | |
| 13F-HR | 160 | $278.5M | 2026-05-05 | SEC ↗ | |
| 13F-HR | 161 | $277.4M | 2026-02-10 | SEC ↗ | |
| 13F-HR | 166 | $275.6M | 2025-11-10 | SEC ↗ | |
| 13F-HR | 165 | $266.5M | 2025-08-06 | SEC ↗ | |
| 13F-HR | 167 | $254.4M | 2025-05-08 | SEC ↗ | |
| 13F-HR | 166 | $251.7M | 2025-02-12 | SEC ↗ | |
| 13F-HR | 167 | $262.3M | 2024-11-14 | SEC ↗ | |
| 13F-HR | 163 | $245.2M | 2024-08-09 | SEC ↗ | |
| 13F-HR | 161 | $236.3M | 2024-05-13 | SEC ↗ | |
| 13F-HR | 160 | $212.9M | 2024-02-12 | SEC ↗ | |
| 13F-HR | 156 | $192.3M | 2023-11-13 | SEC ↗ | |
| 13F-HR | 155 | $196.3M | 2023-08-08 | SEC ↗ | |
| 13F-HR | 160 | $192.9M | 2023-05-08 | SEC ↗ | |
| 13F-HR | 157 | $191.3M | 2023-02-10 | SEC ↗ | |
| 13F-HR | 148 | $10.2M | 2022-11-04 | SEC ↗ | |
| 13F-HR | 155 | $8.9M | 2022-07-25 | SEC ↗ | |
| 13F-HR | 155 | $10.1M | 2022-05-03 | SEC ↗ | |
| 13F-HR | 158 | $9.9M | 2022-02-10 | SEC ↗ | |
| 13F-HR | 164 | $8.6M | 2021-10-28 | SEC ↗ | |
| 13F-HR | 153 | $7.5M | 2021-07-26 | SEC ↗ | |
| 13F-HR | 154 | $7.0M | 2021-05-03 | SEC ↗ | |
| 13F-HR | 145 | $6.2M | 2021-01-26 | SEC ↗ | |
| 13F-HR | 141 | $5.1M | 2020-11-02 | SEC ↗ | |
| 13F-HR | 121 | $4.4M | 2020-08-14 | SEC ↗ | |
| 13F-HR | 130 | $3.3M | 2020-05-15 | SEC ↗ | |
| 13F-HR | 110 | $4.2M | 2020-02-04 | SEC ↗ | |
| 13F-HR | 65 | $2.5M | 2019-10-21 | SEC ↗ | |
| 13F-HR | 61 | $2.1M | 2019-07-26 | SEC ↗ | |
| 13F-HR | 61 | $2.2M | 2019-04-24 | SEC ↗ | |
| 13F-HR | 59 | $1.9M | 2019-01-29 | SEC ↗ | |
| 13F-HR | 67 | $2.4M | 2018-10-25 | SEC ↗ | |
| 13F-HR | 77 | $2.6M | 2018-07-26 | SEC ↗ | |
| 13F-HR | 77 | $2.6M | 2018-04-23 | SEC ↗ | |
| 13F-HR | 77 | $2.5M | 2018-01-22 | SEC ↗ | |
| 13F-HR | 78 | $2.4M | 2017-10-25 | SEC ↗ | |
| 13F-HR | 70 | $2.2M | 2017-07-24 | SEC ↗ | |
| 13F-HR | 71 | $2.4M | 2017-04-25 | SEC ↗ | |
| 13F-HR | 71 | $2.9M | 2017-01-25 | SEC ↗ | |
| 13F-HR | 70 | $2.6M | 2016-10-25 | SEC ↗ | |
| 13F-HR | 72 | $2.6M | 2016-07-25 | SEC ↗ | |
| 13F-HR | 71 | $2.5M | 2016-04-25 | SEC ↗ | |
| 13F-HR | 71 | $2.6M | 2016-01-26 | SEC ↗ | |
| 13F-HR | 61 | $2.7M | 2015-10-23 | SEC ↗ | |
| 13F-HR | 69 | $3.5M | 2015-07-24 | SEC ↗ | |
| 13F-HR | 64 | $3.4M | 2015-04-29 | SEC ↗ | |
| 13F-HR | 61 | $3.3M | 2015-01-26 | SEC ↗ | |
| 13F-HR | 64 | $3.0M | 2014-10-23 | SEC ↗ | |
| 13F-HR | 62 | $2.6M | 2014-07-23 | SEC ↗ | |
| 13F-HR | 59 | $2.3M | 2014-04-24 | SEC ↗ | |
| 13F-HR | 60 | $2.6M | 2014-01-31 | SEC ↗ | |
| 13F-HR | 60 | $2.7M | 2013-11-04 | SEC ↗ | |
| 13F-HR | 57 | $2.6M | 2013-08-09 | SEC ↗ |