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RUM · RUM Group Inc.

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$8.53 -0.43 (-4.80%) At close · Sep 1
Market Cap
$4.45B
Shares
495.81M

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: 235
Total Value: $384,167,655
Total Shares: 64,169,185
Showing 1–100 of 251 holdings by value · page 1 of 3

Institutional Ownership Trend

21 quarters

Holder Concentration

Across 235 13F filers · Δ vs Mar 31, 2026
Top Holder
15.4%
Sep 2023 → Jun 2026 · range 15.4% – 35.2%
−1.5 pts
Top 5
58.4%
Sep 2023 → Jun 2026 · range 55.3% – 77.2%
+3.0 pts
Top 10
76.5%
Sep 2023 → Jun 2026 · range 75.7% – 86.8%
−1.0 pts
HHI
852
Sep 2023 → Jun 2026 · range 813 – 2,076
Broadly held+40

Quarterly Activity

vs Mar 31, 2026
New
47
Increased
81
Decreased
46
Sold Out
26
Unchanged
61
Holder count: +21
Institutional value: +36.7%
Shares held: +9.9%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 251
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1830081 CUSIP 78137L105 13F (30d) 169 filings 169 filers Visit website Investor relations