Nine Energy Service, Inc.: which funds bought and sold

Institutions that bought and sold Nine Energy Service 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, 15 institutions that filed 13F reports for both quarters added to or opened positions in Nine Energy Service, and 8 cut or closed them. Together they added a net 354K shares, +3.2% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 210K shares (−8.2%); index fund managers were net buyers of 804K shares. 13 opened a new position and 2 sold out entirely.

Bought, Q2 2026 15 institutions, 13 of them new holders Sold, Q2 2026 8 institutions, 2 of them sold out

Net change, all compared +354K shares (+3.2%)

Net change, active managers −210K shares (−8.2%), 1 bought, 3 sold

Buyers versus sellers

institutions compared, 29

15 bought 6 8 sold

Active managers and hedge funds 1 bought · 3 sold · −210K

Index fund managers 5 bought · 0 sold · +804K

Other institutions 9 bought · 5 sold · −241K

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Vanguard Capital Management LLC Index funds	+519K New position	519K	$6.7M
Geode Capital Management, LLC Index funds	+129K New position	129K	$1.7M
Vanguard Fiduciary Trust Co Index funds	+82K New position	82K	$1.1M
Orvieto Partners, L.P.	+81K New position	81K	$1M
Blackrock, Inc. Index funds	+50K New position	50K	$654,884
Algebris (UK) Ltd	+43K +5.4%	833K	$10.8M
State Street Corp Index funds	+24K New position	24K	$308,675
Icon Wealth Advisors, LLC	+23K New position	23K	$301,273
Pensiondanmark Pensionsforsikringsaktieselskab	+22K New position	22K	$287,352
Qube Research & Technologies Ltd Hedge fund	+19K New position	19K	$242,871
UBS Group AG	+18K New position	18K	$236,353
Vanguard Global Advisers, LLC	+4,548 New position	4,548	$59,169
Morgan Stanley	+1,261 +271.2%	1,726	$22,455
Royal Bank Of Canada	+59 New position	59	$1,000
Barclays PLC	+10 New position	10	$130

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Qube Research & Technologies Ltd Hedge fund	+19K New position	19K	$242,871

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Philosophy Capital Management LLC	−173K −6.8%	2.4M	$30.9M
Gendell Jeffrey L	−170K −21.7%	614K	$8M
Castleknight Management LP Hedge fund	−126K −10.9%	1.0M	$13.4M
Adage Capital Partners Gp, L.L.C. Hedge fund	−56K −4.1%	1.3M	$16.9M
Mackay Shields LLC	−55K −1.8%	3.0M	$39.2M
ACR Alpine Capital Research, LLC Active manager	−47K Sold out	0	—
Nomura Holdings Inc	−20K −3.9%	482K	$6.3M
Jpmorgan Chase & Co	−16K Sold out	0	—

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Castleknight Management LP Hedge fund	−126K −10.9%	1.0M	$13.4M
Adage Capital Partners Gp, L.L.C. Hedge fund	−56K −4.1%	1.3M	$16.9M
ACR Alpine Capital Research, LLC Active manager	−47K Sold out	0	—

New positions

largest by value

Institution	Shares	Value June 30, 2026
Vanguard Capital Management LLCIndex funds	519K	$6.7M
Geode Capital Management, LLCIndex funds	129K	$1.7M
Vanguard Fiduciary Trust CoIndex funds	82K	$1.1M
Orvieto Partners, L.P.	81K	$1M
Blackrock, Inc.Index funds	50K	$654,884
State Street CorpIndex funds	24K	$308,675
Icon Wealth Advisors, LLC	23K	$301,273
Pensiondanmark Pensionsforsikringsaktieselskab	22K	$287,352
Qube Research & Technologies LtdHedge fund	19K	$242,871
UBS Group AG	18K	$236,353

Sold out

largest by value

Institution	Shares	Value March 31, 2026
ACR Alpine Capital Research, LLCActive manager	47K	$279,000
Jpmorgan Chase & Co	16K	$127,355

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 27
Ten largest holders: 93.6%
Index fund managers: 7.0%
Active managers and hedge funds: 20.3%

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	1	3	1	1	−210K	−8.2%
Index fund managers	5	0	5	0	+804K	—
Other institutions	9	5	7	1	−241K	−2.8%

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 Nine Energy Service.

Only managers that filed a holdings report for both quarters are compared (29 here). 1 other holder is 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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