GMMF · Insider trading · 13F holders · Congress trades
Blackrock ETF Trust (GMMF)
Who is buying and selling GMMF: 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
- 2
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
GMMF at a glance
- No open-market insider purchases or sales of GMMF were filed in the last 90 days.
- 2 13F filers hold GMMF among their 50 largest positions, worth $45.7M combined. The biggest bets by portfolio weight are MRWM Advisors, LLC (17.5%) and Hummer Financial Advisory Services Inc (2.0%).
- No member of Congress has disclosed a trade in GMMF.
GMMF insider trading
No open-market insider purchases or sales of GMMF were filed in the last 90 days.
Who owns GMMF? Hedge funds and superinvestors
2 13F filers hold GMMF among their 50 largest positions, worth $45.7M combined. The biggest bets by portfolio weight are MRWM Advisors, LLC (17.5%) and Hummer Financial Advisory Services Inc (2.0%).
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| MRWM Advisors, LLCWealth manager | 17.5% | $42.6M | 424,326 | — | Q2 2026 |
| Hummer Financial Advisory Services IncWealth manager | 2.0% | $3.1M | 31,000 | +0.0% shares | Q3 2026 |
Each manager counts with its latest 13F (Q3 2026: 1, Q2 2026: 1). Screen GMMF in the grand portfolio →
GMMF stock trades by members of Congress
No member of Congress has disclosed a trade in GMMF.
GMMF questions and answers
Are insiders buying GMMF stock?
No open-market insider purchases or sales of GMMF were filed in the last 90 days.
Which hedge funds own GMMF?
2 13F filers hold GMMF among their 50 largest positions, worth $45.7M combined. The biggest bets by portfolio weight are MRWM Advisors, LLC (17.5%) and Hummer Financial Advisory Services Inc (2.0%).
Has Congress traded GMMF?
No member of Congress has disclosed a trade in GMMF.
Who is the largest holder of GMMF?
Among 13F filers, MRWM Advisors, LLC reports the largest GMMF position, $42.6M (424,326 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is MRWM Advisors, LLC's: 17.5% of its portfolio.
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