Pulmonx Corp: which funds bought and sold

Institutions that bought and sold Pulmonx 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, 55 institutions that filed 13F reports for both quarters added to or opened positions in Pulmonx, and 59 cut or closed them. Together they sold a net 5.6M shares, −17.6% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 482K shares (+3.8%); index fund managers were net sellers of 3.9M shares (−52.3%). 20 opened a new position and 24 sold out entirely.

Bought, Q2 2026 55 institutions, 20 of them new holders Sold, Q2 2026 59 institutions, 24 of them sold out

Net change, all compared −5.6M shares (−17.6%)

Net change, active managers +482K shares (+3.8%), 17 bought, 8 sold

Buyers versus sellers

institutions compared, 131

55 bought 17 59 sold

Active managers and hedge funds 17 bought · 8 sold · +482K

Index fund managers 0 bought · 9 sold · −3.9M

Other institutions 38 bought · 42 sold · −2.2M

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Almitas Capital LLC	+1.1M New position	1.1M	$1.4M
Jane Street Group, LLC	+625K +468.9%	758K	$985,700
AQR Capital Management LLC Hedge fund	+387K +108.3%	745K	$968,453
Marshall Wace, LLP Hedge fund	+231K New position	231K	$299,959
Millennium Management LLC Hedge fund	+210K New position	210K	$272,423
HSBC Holdings PLC	+180K +1275.8%	194K	$249,092
HRT Financial LP	+108K New position	108K	$140,000
Bank Of Montreal	+106K New position	106K	$137,745
Renaissance Technologies LLC Hedge fund	+105K +32.7%	425K	$552,643
Squarepoint Ops LLC Hedge fund	+101K +122.5%	184K	$238,625
Citadel Advisors LLC Hedge fund	+86K +151.5%	143K	$186,425
Redhawk Wealth Advisors, Inc.	+65K +187.2%	100K	$129,542
Quadrature Capital Ltd Hedge fund	+64K New position	64K	$83,083
Acadian Asset Management LLC Active manager	+57K +34.1%	223K	$287,000
Qube Research & Technologies Ltd Hedge fund	+50K New position	50K	$64,840
Ieq Capital, LLC	+48K +220.4%	69K	$89,906
Stonepine Capital Management, LLC	+47K +6.1%	815K	$1.1M
Centiva Capital, LP Hedge fund	+46K +30.0%	200K	$260,124
Nano Cap New Millennium Growth Fund L P	+43K +27.0%	200K	$260,000
Xtx Topco Ltd	+38K +47.4%	118K	$153,448

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
AQR Capital Management LLC Hedge fund	+387K +108.3%	745K	$968,453
Marshall Wace, LLP Hedge fund	+231K New position	231K	$299,959
Millennium Management LLC Hedge fund	+210K New position	210K	$272,423
Renaissance Technologies LLC Hedge fund	+105K +32.7%	425K	$552,643
Squarepoint Ops LLC Hedge fund	+101K +122.5%	184K	$238,625
Citadel Advisors LLC Hedge fund	+86K +151.5%	143K	$186,425
Quadrature Capital Ltd Hedge fund	+64K New position	64K	$83,083
Acadian Asset Management LLC Active manager	+57K +34.1%	223K	$287,000
Qube Research & Technologies Ltd Hedge fund	+50K New position	50K	$64,840
Centiva Capital, LP Hedge fund	+46K +30.0%	200K	$260,124

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Blackrock, Inc. Index funds	−1.8M −66.8%	882K	$1.1M
Bank Of America Corp	−1.2M Sold out	0	—
Morgan Stanley	−1.1M −26.8%	2.9M	$3.8M
Deutsche Bank Ag\	−761K −65.4%	402K	$523,011
Exoduspoint Capital Management, LP Hedge fund	−720K −37.1%	1.2M	$1.6M
Barclays PLC	−649K −95.0%	34K	$44,379
State Street Corp Index funds	−618K −76.3%	192K	$248,951
Vanguard Portfolio Management LLC Index funds	−604K Sold out	0	—
Geode Capital Management, LLC Index funds	−492K −52.1%	453K	$588,714
Jpmorgan Chase & Co	−386K −99.4%	2,250	$2,993
Northern Trust Corp Index funds	−251K −70.6%	104K	$135,355
Primecap Management Co Active manager	−113K −2.4%	4.6M	$6M
Parkman Healthcare Partners LLC	−109K −14.4%	647K	$840,533
Bank Of New York Mellon Corp	−93K Sold out	0	—
Goldman Sachs Group Inc	−88K −39.4%	135K	$175,946
Charles Schwab Investment Management Inc Index funds	−71K Sold out	0	—
Nuveen, LLC	−69K Sold out	0	—
Alliancebernstein L.P. Active manager	−52K Sold out	0	—
Birchview Capital, LP	−50K −19.9%	201K	$260,706
Dimensional Fund Advisors LP	−44K −31.1%	98K	$127,243

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Exoduspoint Capital Management, LP Hedge fund	−720K −37.1%	1.2M	$1.6M
Primecap Management Co Active manager	−113K −2.4%	4.6M	$6M
Alliancebernstein L.P. Active manager	−52K Sold out	0	—
Jacobs Levy Equity Management, Inc Active manager	−24K −63.5%	14K	$17,575
Price T Rowe Associates Inc Active manager	−20K Sold out	0	—
FMR LLC Active manager	−12K −25.9%	36K	$46,447
Intech Investment Management LLC Active manager	−10K Sold out	0	—
D. E. Shaw & Co., Inc. Hedge fund	−7,546 −2.3%	328K	$425,787

New positions

largest by value

Institution	Shares	Value June 30, 2026
Almitas Capital LLC	1.1M	$1.4M
Marshall Wace, LLPHedge fund	231K	$299,959
Millennium Management LLCHedge fund	210K	$272,423
HRT Financial LP	108K	$140,000
Bank Of Montreal	106K	$137,745
Quadrature Capital LtdHedge fund	64K	$83,083
Qube Research & Technologies LtdHedge fund	50K	$64,840
Jain Global LLCHedge fund	35K	$45,494
Virtu Financial LLC	29K	$38,000
Wealth Enhancement Advisory Services, LLC	23K	$35,779

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Bank Of America Corp	1.2M	$1.5M
Vanguard Portfolio Management LLCIndex funds	604K	$779,747
Bank Of New York Mellon Corp	93K	$119,609
Alliancebernstein L.P.Active manager	52K	$115,362
Charles Schwab Investment Management IncIndex funds	71K	$92,002
Nuveen, LLC	69K	$89,150
Nine Masts Capital Ltd	39K	$49,791
Susquehanna Portfolio Strategies, LLC	38K	$48,732
Price T Rowe Associates IncActive manager	20K	$26,000
Mirae Asset Global Etfs Holdings Ltd.	18K	$23,678

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 108
Ten largest holders: 66.6%
Index fund managers: 13.5%
Active managers and hedge funds: 50.2%

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	17	8	5	3	+482K	+3.8%
Index fund managers	0	9	0	2	−3.9M	−52.3%
Other institutions	38	42	15	19	−2.2M	−18.7%

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 Pulmonx.

Only managers that filed a holdings report for both quarters are compared (131 here). 2 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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