ARIMX · Insider trading · 13F holders · Congress trades
Amg River Road Small-Mid Cap V (ARIMX)
Who is buying and selling ARIMX: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 5
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
ARIMX at a glance
- No open-market insider purchases or sales of ARIMX were filed in the last 90 days.
- 5 13F filers hold ARIMX among their 50 largest positions, worth $32.9M combined. The biggest bets by portfolio weight are Hemenway Trust Co LLC (1.4%), Dempze Nancy E (1.3%) and Broderick Brian C (1.1%). In their latest 13Fs, 0 managers opened a new position and 1 added to one.
- No member of Congress has disclosed a trade in ARIMX.
ARIMX insider trading
No open-market insider purchases or sales of ARIMX were filed in the last 90 days.
Who owns ARIMX? Hedge funds and superinvestors
5 13F filers hold ARIMX among their 50 largest positions, worth $32.9M combined. The biggest bets by portfolio weight are Hemenway Trust Co LLC (1.4%), Dempze Nancy E (1.3%) and Broderick Brian C (1.1%). In their latest 13Fs, 0 managers opened a new position and 1 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Hemenway Trust Co LLCBank & trust | 1.4% | $19.5M | 1,846,391 | +0.8% shares | Q2 2026 |
| Broderick Brian CInvestment manager | 1.1% | $7.1M | 673,406 | +0.0% shares | Q2 2026 |
| Somerville Kurt FInvestment manager | 0.7% | $2.7M | 259,951 | -0.2% shares | Q2 2026 |
| Dempze Nancy EInvestment manager | 1.3% | $2.7M | 252,648 | +0.0% shares | Q2 2026 |
| Elefante Mark BInvestment manager | 0.4% | $832K | 78,815 | +15.4% shares | Q2 2026 |
Each manager counts with its latest 13F (Q2 2026: 5). Screen ARIMX in the grand portfolio →
ARIMX stock trades by members of Congress
No member of Congress has disclosed a trade in ARIMX.
ARIMX questions and answers
Are insiders buying ARIMX stock?
No open-market insider purchases or sales of ARIMX were filed in the last 90 days.
Which hedge funds own ARIMX?
5 13F filers hold ARIMX among their 50 largest positions, worth $32.9M combined. The biggest bets by portfolio weight are Hemenway Trust Co LLC (1.4%), Dempze Nancy E (1.3%) and Broderick Brian C (1.1%). In their latest 13Fs, 0 managers opened a new position and 1 added to one.
Has Congress traded ARIMX?
No member of Congress has disclosed a trade in ARIMX.
Who is the largest holder of ARIMX?
Among 13F filers, Hemenway Trust Co LLC reports the largest ARIMX position, $19.5M (1,846,391 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Hemenway Trust Co LLC's: 1.4% of its portfolio.
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