MAMO · Massimo Group
$1.00
+0.00 (+0.00%)
At close · Aug 27
Market Cap
$41.23M
Shares
41.64M
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Holders: 13
Total Value: $564,703
Total Shares: 585,192
Institutional Ownership Trend
9 quarters
Holder Concentration
Across 13 13F filers · Δ vs Mar 31, 2026Top Holder
42.7%
−4.2 pts
Top 5
84.5%
+1.9 pts
Top 10
99.5%
−0.4 pts
HHI
2,355
Moderately concentrated−318
Quarterly Activity
vs Mar 31, 2026
New
4
Increased
4
Decreased
3
Sold Out
3
Unchanged
2
Holder count:
+1
Institutional value:
+117.2%
Shares held:
+124.2%
Top Buyers
vs Mar 31, 2026| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Mega VANGUARD CAPITAL MANAGEMENT LLC | +32,464 | 75,064 | |
| Mega BlackRock, Inc. | +16,760 | 31,052 | |
| Mega NORTHERN TRUST CORP | +4,946 | 15,187 | |
| Mid XTX Topco Ltd | +1,983 | 15,113 |
Top Sellers
vs Mar 31, 2026| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Mega GEODE CAPITAL MANAGEMENT, LLC | −39,664 | 82,770 | |
| Mega UBS Group AG | −14,916 | 326 | |
| Mid Tower Research Capital LLC (TRC) | −6,717 | 2,335 |
Top New Positions
vs Mar 31, 2026| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Mega BANK OF AMERICA CORP /DE/ | 250,000 | $241,250 | |
| Mega CITIGROUP INC | 55,874 | $53,918 | |
| Small TWO SIGMA SECURITIES, LLC | 18,459 | $17,812 | |
| Small StoneX Group Inc. | 17,775 | $17,152 |
Top Sold-Out Positions
vs Mar 31, 2026| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Large RENAISSANCE TECHNOLOGIES LLC | 12,600 | $12,549 | |
| Mega ROYAL BANK OF CANADA | 114 | $113 | |
| Mid Advisory Services Network, LLC | 91 | $90 |
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mega BANK OF AMERICA CORP /DE/ Bank | $241,250 | 42.72% | 250,000 | Shares | 2026-08-14 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC | $79,872 | 14.14% | 82,770 | Shares | 2026-08-12 | |
| Mega VANGUARD CAPITAL MANAGEMENT LLC | $72,436 | 12.83% | 75,064 | Shares | 2026-08-13 | |
| Mega CITIGROUP INC | $53,918 | 9.55% | 55,874 | Shares | 2026-08-03 | |
| Mega BlackRock, Inc. | $29,965 | 5.31% | 31,052 | Shares | 2026-08-07 | |
| Mega VANGUARD FIDUCIARY TRUST CO Bank | $20,487 | 3.63% | 21,231 | Shares | 2026-08-13 | |
| Small TWO SIGMA SECURITIES, LLC Broker-Dealer | $17,812 | 3.15% | 18,459 | Shares | 2026-08-14 | |
| Small StoneX Group Inc. | $17,152 | 3.04% | 17,775 | Shares | 2026-08-12 | |
| Mega NORTHERN TRUST CORP Bank | $14,655 | 2.60% | 15,187 | Shares | 2026-08-13 | |
| Mid XTX Topco Ltd | $14,584 | 2.58% | 15,113 | Shares | 2026-08-14 | |
| Mid Tower Research Capital LLC (TRC) | $2,253 | 0.40% | 2,335 | Shares | 2026-08-11 | |
| Mega UBS Group AG | $314 | 0.06% | 326 | Shares | 2026-08-13 | |
| Mid SBI Securities Co., Ltd. Broker-Dealer | $5 | 0.00% | 6 | Shares | 2026-07-23 |