Aduro Clean Technologies Inc.: which funds bought and sold

Institutions that bought and sold Aduro Clean Technologies 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, 29 institutions that filed 13F reports for both quarters added to or opened positions in Aduro Clean Technologies, and 17 cut or closed them. Together they added a net 203K shares, +28.3% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 90K shares (+220.7%); index fund managers were net sellers of 551 shares (−1.3%). 14 opened a new position and 11 sold out entirely.

Bought, Q2 2026 29 institutions, 14 of them new holders Sold, Q2 2026 17 institutions, 11 of them sold out

Net change, all compared +203K shares (+28.3%)

Net change, active managers +90K shares (+220.7%), 3 bought, 2 sold

Buyers versus sellers

institutions compared, 51

29 bought 5 17 sold

Active managers and hedge funds 3 bought · 2 sold · +90K

Index fund managers 1 bought · 1 sold · −551

Other institutions 25 bought · 14 sold · +113K

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Mmcap International Inc. Spc	+140K New position	140K	$2.2M
Marshall Wace, LLP Hedge fund	+77K New position	77K	$1.2M
Fiduciary Alliance LLC	+65K New position	65K	$1M
Jane Street Group, LLC	+47K +177.4%	73K	$1.2M
Aptus Capital Advisors, LLC	+40K New position	40K	$631,992
Guardian Wealth Advisors, LLC / Nc	+40K New position	40K	$630,400
Raymond James Financial Inc	+27K +63.1%	69K	$1.1M
Commonwealth Equity Services, LLC	+16K New position	16K	$245,600
Squarepoint Ops LLC Hedge fund	+14K New position	14K	$215,156
LPL Financial LLC	+12K New position	12K	$194,636
Two Sigma Investments, LP Hedge fund	+11K +36.5%	41K	$640,108
Royal Bank Of Canada	+11K +513.5%	13K	$203,000
Accurate Wealth Management, LLC	+10K New position	10K	$161,200
Newedge Advisors, LLC	+5,916 +18.3%	38K	$604,112
Perigon Wealth Management, LLC	+5,700 +36.8%	21K	$334,033
Morgan Stanley	+3,472 +16.4%	25K	$387,396
Osaic Holdings, Inc.	+3,094 +364.0%	3,944	$62,157
Integrated Wealth Concepts LLC	+1,167 New position	1,167	$18,393
Persistent Asset Partners Ltd	+1,087 New position	1,087	$17,131
Group One Trading LLC	+1,074 +44.2%	3,506	$55,255

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Marshall Wace, LLP Hedge fund	+77K New position	77K	$1.2M
Squarepoint Ops LLC Hedge fund	+14K New position	14K	$215,156
Two Sigma Investments, LP Hedge fund	+11K +36.5%	41K	$640,108

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Diametric Capital, LP	−85K −72.7%	32K	$502,491
Susquehanna International Group, LLP	−79K Sold out	0	—
UBS Group AG	−44K −58.5%	31K	$491,901
Stifel Financial Corp	−20K −54.8%	17K	$263,066
Goldman Sachs Group Inc	−19K Sold out	0	—
Prelude Capital Management, LLC	−18K Sold out	0	—
Imc-Chicago, LLC	−16K −48.6%	17K	$263,712
HRT Financial LP	−15K −34.4%	28K	$438,000
Bank Of America Corp	−12K Sold out	0	—
Engineers Gate Manager LP Hedge fund	−11K Sold out	0	—
Citigroup Inc	−5,829 Sold out	0	—
Longview Financial Advisors, Inc.	−2,623 Sold out	0	—
Simplex Trading, LLC	−2,533 Sold out	0	—
Blackrock, Inc. Index funds	−750 −19.1%	3,172	$49,991
Quantbot Technologies LP Hedge fund	−138 Sold out	0	—
Spire Wealth Management	−50 Sold out	0	—
Physician Wealth Advisors, Inc.	−22 Sold out	0	—

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Engineers Gate Manager LP Hedge fund	−11K Sold out	0	—
Quantbot Technologies LP Hedge fund	−138 Sold out	0	—

New positions

largest by value

Institution	Shares	Value June 30, 2026
Mmcap International Inc. Spc	140K	$2.2M
Marshall Wace, LLPHedge fund	77K	$1.2M
Fiduciary Alliance LLC	65K	$1M
Aptus Capital Advisors, LLC	40K	$631,992
Guardian Wealth Advisors, LLC / Nc	40K	$630,400
Commonwealth Equity Services, LLC	16K	$245,600
Squarepoint Ops LLCHedge fund	14K	$215,156
LPL Financial LLC	12K	$194,636
Accurate Wealth Management, LLC	10K	$161,200
Integrated Wealth Concepts LLC	1,167	$18,393

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Susquehanna International Group, LLP	79K	$832,214
Goldman Sachs Group Inc	19K	$196,604
Prelude Capital Management, LLC	18K	$186,533
Bank Of America Corp	12K	$122,523
Engineers Gate Manager LPHedge fund	11K	$114,205
Citigroup Inc	5,829	$60,564
Longview Financial Advisors, Inc.	2,623	$27,515
Simplex Trading, LLC	2,533	$26,571
Quantbot Technologies LPHedge fund	138	$1,448
Spire Wealth Management	50	$525

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 41
Ten largest holders: 67.0%
Index fund managers: 4.5%
Active managers and hedge funds: 14.2%

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	3	2	2	2	+90K	+220.7%
Index fund managers	1	1	0	0	−551	−1.3%
Other institutions	25	14	12	9	+113K	+17.9%

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 Aduro Clean Technologies.

Only managers that filed a holdings report for both quarters are compared (51 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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