Octave Intelligence plc: which funds bought and sold

Institutions that bought and sold Octave Intelligence 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, 73 institutions that filed 13F reports for both quarters added to or opened positions in Octave Intelligence, and 0 cut or closed them. Together they added a net 26.7M shares, — on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 6.8M shares; index fund managers were net buyers of 628K shares. 73 opened a new position and 0 sold out entirely.

Bought, Q2 2026 73 institutions, 73 of them new holders Sold, Q2 2026 0 institutions, 0 of them sold out

Net change, all compared +26.7M shares (—)

Net change, active managers +6.8M shares (—), 15 bought, 0 sold

Buyers versus sellers

institutions compared, 73

73 bought 0 sold

Active managers and hedge funds 15 bought · 0 sold · +6.8M

Index fund managers 4 bought · 0 sold · +628K

Other institutions 54 bought · 0 sold · +19.3M

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Madison Avenue Partners, LP Hedge fund	+4.2M New position	4.2M	$68.8M
Koch, Inc.	+3.0M New position	3.0M	$48.9M
Lansforsakringar Fondforvaltning AB (Publ)	+2.7M New position	2.7M	$44.2M
Jane Street Group, LLC	+2.1M New position	2.1M	$34.6M
Newtyn Management, LLC	+1.9M New position	1.9M	$31.3M
Jpmorgan Chase & Co	+1.4M New position	1.4M	$23.7M
Exchange Traded Concepts, LLC	+1.2M New position	1.2M	$19.1M
DZ Bank AG Deutsche Zentral Genossenschafts Bank, Frankfurt Am Main	+1.1M New position	1.1M	$17.2M
Legal & General Group PLC	+1.0M New position	1.0M	$16.7M
Goldman Sachs Group Inc	+787K New position	787K	$12.8M
Select Equity Group, L.P. Active manager	+785K New position	785K	$12.8M
Millennium Management LLC Hedge fund	+748K New position	748K	$12.2M
HRT Financial LP	+612K New position	612K	$10M
California Public Employees Retirement System	+463K New position	463K	$7.5M
Geode Capital Management, LLC Index funds	+412K New position	412K	$6.7M
Marshall Wace, LLP Hedge fund	+325K New position	325K	$5.3M
Allspring Global Investments Holdings, LLC	+306K New position	306K	$5.2M
Needham Investment Management LLC	+300K New position	300K	$4.9M
Royal Bank Of Canada	+280K New position	280K	$4.6M
Leith Wheeler Investment Counsel Ltd.	+275K New position	275K	$4.5M

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Madison Avenue Partners, LP Hedge fund	+4.2M New position	4.2M	$68.8M
Select Equity Group, L.P. Active manager	+785K New position	785K	$12.8M
Millennium Management LLC Hedge fund	+748K New position	748K	$12.2M
Marshall Wace, LLP Hedge fund	+325K New position	325K	$5.3M
Laurion Capital Management LP Hedge fund	+270K New position	270K	$4.4M
Walleye Capital LLC Hedge fund	+140K New position	140K	$2.3M
683 Capital Management, LLC Hedge fund	+125K New position	125K	$2M
FMR LLC Active manager	+44K New position	44K	$714,964
Centerbook Partners LP Hedge fund	+42K New position	42K	$688,463
Point72 Asset Management, L.P. Hedge fund	+35K New position	35K	$574,445

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
No institution cut its holding.

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
None of the active managers on our list.

New positions

largest by value

Institution	Shares	Value June 30, 2026
Madison Avenue Partners, LPHedge fund	4.2M	$68.8M
Koch, Inc.	3.0M	$48.9M
Lansforsakringar Fondforvaltning AB (Publ)	2.7M	$44.2M
Jane Street Group, LLC	2.1M	$34.6M
Newtyn Management, LLC	1.9M	$31.3M
Jpmorgan Chase & Co	1.4M	$23.7M
Exchange Traded Concepts, LLC	1.2M	$19.1M
DZ Bank AG Deutsche Zentral Genossenschafts Bank, Frankfurt Am Main	1.1M	$17.2M
Legal & General Group PLC	1.0M	$16.7M
Goldman Sachs Group Inc	787K	$12.8M

Sold out

largest by value

Institution	Shares	Value March 31, 2026
No institution sold its whole holding.

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 76
Ten largest holders: 71.4%
Index fund managers: 2.2%
Active managers and hedge funds: 24.3%

Buying and selling by type of institution, March 31, 2026 to June 30, 2026
Type	Bought	New	Net change in shares	Net %
Active managers and hedge funds	15	15	+6.8M	—
Index fund managers	4	4	+628K	—
Other institutions	54	54	+19.3M	—

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 Octave Intelligence.

Only managers that filed a holdings report for both quarters are compared (73 here). 3 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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