ARIMX AMG RR SMID VAL-I
FollowEquity Mutual Fu (fund)
6 managers (6 13F filers) reported a position in ARIMX shares at 2026-06-30, 3,147,430 shares in all. 0 filers opened a position and 0 filers sold out during the quarter.
- Managers
- 6
- 13F filers
- 6
- New
- 0
- Added
- 3
- Reduced
- 1
- Sold out
- 0
- Shares held by filers
- 3,147,430
Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.
13D and 13G filers
No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.
Insider trades
No Form 4 transaction on this security in the data.
13F holders, Q2 2026
Filers in the available 13F reports with a share position at 2026-06-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.
| Holder | Shares | Value | % of portfolio | Change | Source |
|---|---|---|---|---|---|
| Hemenway Trust Co LLC | 1,846,391 | $19.5M | 1.36% | +15,416 | 13F-HRTimeline |
| Broderick Brian C | 673,406 | $7.11M | 1.1% | 0 | 13F-HRTimeline |
| SOMERVILLE KURT F | 259,951 | $2.75M | 0.66% | -616 | 13F-HRTimeline |
| Dempze Nancy E | 252,648 | $2.67M | 1.28% | 0 | 13F-HRTimeline |
| Elefante Mark B | 78,815 | $832K | 0.36% | +10,522 | 13F-HRTimeline |
| Delaney Dennis R | 36,219 | $382K | 0.12% | +15,974 | 13F-HRTimeline |