RUM Group Inc.: which funds bought and sold

Institutions that bought and sold RUM Group shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 122 institutions that filed 13F reports for both quarters added to or opened positions in RUM Group, and 61 cut or closed them. Together they added a net 14.1M shares, +27.3% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 389K shares (−25.7%); index fund managers were net buyers of 1.1M shares (+4.6%). 44 opened a new position and 20 sold out entirely.

Bought, Q2 2026 122 institutions, 44 of them new holders Sold, Q2 2026 61 institutions, 20 of them sold out

Net change, all compared +14.1M shares (+27.3%)

Net change, active managers −389K shares (−25.7%), 11 bought, 9 sold

Buyers versus sellers

institutions compared, 238

122 bought 55 61 sold

Active managers and hedge funds 11 bought · 9 sold · −389K

Index fund managers 8 bought · 2 sold · +1.1M

Other institutions 103 bought · 50 sold · +13.3M

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Cantor Fitzgerald, L. P.	+9.3M +100.0%	18.7M	$118M
Cooper Creek Partners Management LLC	+3.8M +72.5%	9.0M	$57.3M
Susquehanna International Group, LLP	+892K +2478.0%	928K	$5.9M
Blackrock, Inc. Index funds	+810K +10.3%	8.7M	$55.1M
Bank Of America Corp	+392K +239.8%	555K	$3.5M
Jane Street Group, LLC	+343K +79.6%	775K	$4.9M
Geode Capital Management, LLC Index funds	+273K +9.7%	3.1M	$19.5M
Cambridge Investment Research Advisors, Inc.	+264K +99.8%	528K	$3.3M
Citadel Advisors LLC Hedge fund	+210K New position	210K	$1.3M
Walleye Trading LLC	+164K New position	164K	$1M
Vanguard Portfolio Management LLC Index funds	+155K +3.9%	4.2M	$26.5M
Dark Forest Capital Management LP	+142K New position	142K	$899,557
AQR Capital Management LLC Hedge fund	+141K +177.4%	220K	$1.4M
Nuveen, LLC	+126K +56.4%	349K	$2.2M
Exoduspoint Capital Management, LP Hedge fund	+119K +346.1%	154K	$975,536
Northern Trust Corp Index funds	+106K +12.5%	953K	$6M
Vanguard Capital Management LLC Index funds	+102K +2.5%	4.1M	$26.1M
Quantinno Capital Management LP	+97K +138.7%	166K	$1.1M
Entropy Technologies, LP	+75K New position	75K	$476,869
Wells Fargo & Company	+70K +141.8%	119K	$755,678

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Citadel Advisors LLC Hedge fund	+210K New position	210K	$1.3M
AQR Capital Management LLC Hedge fund	+141K +177.4%	220K	$1.4M
Exoduspoint Capital Management, LP Hedge fund	+119K +346.1%	154K	$975,536
Engineers Gate Manager LP Hedge fund	+39K New position	39K	$249,897
Franklin Resources Inc Active manager	+26K New position	26K	$167,129
Lazard Asset Management LLC Active manager	+17K New position	17K	$110,728
Price T Rowe Associates Inc Active manager	+17K +15.9%	126K	$800,000
Brevan Howard Capital Management LP Hedge fund	+7,512 +42.7%	25K	$159,045
Intech Investment Management LLC Active manager	+2,859 +11.9%	27K	$170,337
FMR LLC Active manager	+1,621 +12.0%	15K	$95,973

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
UBS Group AG	−903K −56.4%	699K	$4.4M
National Bank Of Canada	−628K −70.2%	266K	$1.7M
Morgan Stanley	−608K −60.0%	405K	$2.6M
Goldman Sachs Group Inc	−525K −25.3%	1.5M	$9.8M
State Street Corp Index funds	−443K −13.3%	2.9M	$18.3M
Sculptor Capital LP Hedge fund	−365K −93.4%	26K	$162,304
Marshall Wace, LLP Hedge fund	−355K −85.1%	62K	$392,922
Numerai Gp LLC	−161K −88.1%	22K	$137,673
Barclays PLC	−145K −85.5%	25K	$155,907
Quantbot Technologies LP Hedge fund	−91K Sold out	0	—
Hudson Bay Capital Management LP Hedge fund	−52K Sold out	0	—
Mirae Asset Global Etfs Holdings Ltd.	−46K −32.5%	96K	$609,287
Schonfeld Strategic Advisors LLC Hedge fund	−46K Sold out	0	—
Balyasny Asset Management L.P. Hedge fund	−43K Sold out	0	—
Bridgefront Capital, LLC	−30K −62.0%	18K	$115,889
Drw Securities, LLC	−24K Sold out	0	—
Magnetar Financial LLC Hedge fund	−20K Sold out	0	—
HSBC Holdings PLC	−16K Sold out	0	—
Kestra Advisory Services, LLC	−16K Sold out	0	—
Axq Capital, LP	−15K −56.6%	12K	$73,493

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Sculptor Capital LP Hedge fund	−365K −93.4%	26K	$162,304
Marshall Wace, LLP Hedge fund	−355K −85.1%	62K	$392,922
Quantbot Technologies LP Hedge fund	−91K Sold out	0	—
Hudson Bay Capital Management LP Hedge fund	−52K Sold out	0	—
Schonfeld Strategic Advisors LLC Hedge fund	−46K Sold out	0	—
Balyasny Asset Management L.P. Hedge fund	−43K Sold out	0	—
Magnetar Financial LLC Hedge fund	−20K Sold out	0	—
Alliancebernstein L.P. Active manager	−468 −0.5%	92K	$467,757
Walleye Capital LLC Hedge fund	−16 Sold out	0	—

New positions

largest by value

Institution	Shares	Value June 30, 2026
Citadel Advisors LLCHedge fund	210K	$1.3M
Walleye Trading LLC	164K	$1M
Dark Forest Capital Management LP	142K	$899,557
Entropy Technologies, LP	75K	$476,869
Virtu Financial LLC	63K	$398,000
Engineers Gate Manager LPHedge fund	39K	$249,897
Evergreen Capital Management LLC	35K	$224,043
Franklin Resources IncActive manager	26K	$167,129
Peak6 LLC	26K	$166,362
Corient Private Wealth LP	26K	$163,796

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Quantbot Technologies LPHedge fund	91K	$465,977
Hudson Bay Capital Management LPHedge fund	52K	$265,557
Schonfeld Strategic Advisors LLCHedge fund	46K	$232,631
Balyasny Asset Management L.P.Hedge fund	43K	$221,411
Drw Securities, LLC	24K	$124,465
Magnetar Financial LLCHedge fund	20K	$99,572
Kestra Advisory Services, LLC	16K	$80,917
HSBC Holdings PLC	16K	$80,620
Marathon Trading Investment Management LLC	13K	$68,620
State Of Wyoming	12K	$61,970

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 223
Ten largest holders: 82.6%
Index fund managers: 39.4%
Active managers and hedge funds: 1.7%

Buying and selling by type of institution, March 31, 2026 to June 30, 2026
Type	Bought	Sold	New	Sold out	Net change in shares	Net %
Active managers and hedge funds	11	9	4	6	−389K	−25.7%
Index fund managers	8	2	0	0	+1.1M	+4.6%
Other institutions	103	50	40	14	+13.3M	+52.8%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

What these filings can and cannot tell you

Form 13F lists the long positions in US-listed shares held by investment managers with more than $100 million in such holdings. Managers file it up to 45 days after each quarter ends, so this page shows what funds held at the end of each quarter, not what they are doing now: a position may have changed since. Short positions, most derivatives and smaller managers are not included, and a cut can mean a fund lost clients or rebalanced rather than a view on RUM Group.

Only managers that filed a holdings report for both quarters are compared (238 here). 11 other holders are left out: first-time or late filers, firms that changed their SEC registration, and filings that withheld positions under confidential treatment, any of which would otherwise look like a new position or a sale. Figures are as reported by each manager in the SEC's quarterly 13F data sets; option positions are excluded.

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