Soundthinking, Inc.: which funds bought and sold

Institutions that bought and sold Soundthinking 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, 48 institutions that filed 13F reports for both quarters added to or opened positions in Soundthinking, and 52 cut or closed them. Together they sold a net 940K shares, −11.8% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 168K shares (−15.5%); index fund managers were net sellers of 936K shares (−48.0%). 19 opened a new position and 29 sold out entirely.

Bought, Q2 2026 48 institutions, 19 of them new holders Sold, Q2 2026 52 institutions, 29 of them sold out

Net change, all compared −940K shares (−11.8%)

Net change, active managers −168K shares (−15.5%), 12 bought, 9 sold

Buyers versus sellers

institutions compared, 106

48 bought 6 52 sold

Active managers and hedge funds 12 bought · 9 sold · −168K

Index fund managers 1 bought · 8 sold · −936K

Other institutions 35 bought · 35 sold · +164K

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
AQR Capital Management LLC Hedge fund	+172K +133.0%	301K	$2.7M
Kopion Asset Management, LLC	+142K +14.6%	1.1M	$10.1M
Marshall Wace, LLP Hedge fund	+130K New position	130K	$1.2M
Jane Street Group, LLC	+91K +192.9%	139K	$1.3M
Millennium Management LLC Hedge fund	+81K New position	81K	$734,272
Quantinno Capital Management LP	+48K +20.4%	285K	$2.6M
Arrowstreet Capital, Limited Partnership Hedge fund	+46K New position	46K	$417,087
Goldman Sachs Group Inc	+42K +47.1%	132K	$1.2M
Point72 Asset Management, L.P. Hedge fund	+42K +346.0%	55K	$493,370
Great Lakes Advisors, LLC	+30K New position	30K	$272,396
Rice Hall James & Associates, LLC	+23K +5.1%	467K	$4.2M
Ieq Capital, LLC	+21K New position	21K	$193,000
R Squared Ltd	+19K New position	19K	$175,932
Jain Global LLC Hedge fund	+19K New position	19K	$170,212
Qube Research & Technologies Ltd Hedge fund	+17K New position	17K	$150,954
Wealth Enhancement Advisory Services, LLC	+14K New position	14K	$120,373
Quadrature Capital Ltd Hedge fund	+13K New position	13K	$120,021
Cerity Partners LLC	+13K New position	13K	$114,212
HRT Financial LP	+11K New position	11K	$100,000
Schonfeld Strategic Advisors LLC Hedge fund	+11K New position	11K	$100,045

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
AQR Capital Management LLC Hedge fund	+172K +133.0%	301K	$2.7M
Marshall Wace, LLP Hedge fund	+130K New position	130K	$1.2M
Millennium Management LLC Hedge fund	+81K New position	81K	$734,272
Arrowstreet Capital, Limited Partnership Hedge fund	+46K New position	46K	$417,087
Point72 Asset Management, L.P. Hedge fund	+42K +346.0%	55K	$493,370
Jain Global LLC Hedge fund	+19K New position	19K	$170,212
Qube Research & Technologies Ltd Hedge fund	+17K New position	17K	$150,954
Quadrature Capital Ltd Hedge fund	+13K New position	13K	$120,021
Schonfeld Strategic Advisors LLC Hedge fund	+11K New position	11K	$100,045
Acadian Asset Management LLC Active manager	+3,733 +3.4%	112K	$1M

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Blackrock, Inc. Index funds	−477K −57.1%	358K	$3.2M
Federated Hermes, Inc. Active manager	−450K Sold out	0	—
Disciplined Growth Investors Inc Active manager	−196K Sold out	0	—
State Street Corp Index funds	−161K −79.1%	43K	$385,566
Geode Capital Management, LLC Index funds	−156K −59.1%	108K	$978,957
Northern Trust Corp Index funds	−58K −71.2%	23K	$212,594
Vanguard Portfolio Management LLC Index funds	−57K Sold out	0	—
BNP Paribas Financial Markets	−42K −98.6%	579	$5,240
Jump Financial, LLC	−39K −71.3%	16K	$141,180
Dimensional Fund Advisors LP	−36K −26.0%	101K	$918,070
Nuveen, LLC	−33K Sold out	0	—
Bank Of New York Mellon Corp	−26K Sold out	0	—
Morgan Stanley	−20K −22.2%	70K	$634,223
Charles Schwab Investment Management Inc Index funds	−19K Sold out	0	—
Virtu Financial LLC	−17K Sold out	0	—
D. E. Shaw & Co., Inc. Hedge fund	−16K Sold out	0	—
Deutsche Bank Ag\	−16K Sold out	0	—
Prelude Capital Management, LLC	−15K Sold out	0	—
Bank Of America Corp	−14K Sold out	0	—
Sei Investments Co	−14K Sold out	0	—

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Federated Hermes, Inc. Active manager	−450K Sold out	0	—
Disciplined Growth Investors Inc Active manager	−196K Sold out	0	—
D. E. Shaw & Co., Inc. Hedge fund	−16K Sold out	0	—
Trexquant Investment LP Hedge fund	−13K Sold out	0	—
Alliancebernstein L.P. Active manager	−13K Sold out	0	—
Panagora Asset Management Inc Active manager	−10K Sold out	0	—
Two Sigma Investments, LP Hedge fund	−4,762 −14.9%	27K	$245,499
Renaissance Technologies LLC Hedge fund	−4,200 −6.4%	61K	$553,245
Squarepoint Ops LLC Hedge fund	−375 −2.5%	14K	$130,438

New positions

largest by value

Institution	Shares	Value June 30, 2026
Marshall Wace, LLPHedge fund	130K	$1.2M
Millennium Management LLCHedge fund	81K	$734,272
Arrowstreet Capital, Limited PartnershipHedge fund	46K	$417,087
Great Lakes Advisors, LLC	30K	$272,396
Ieq Capital, LLC	21K	$193,000
R Squared Ltd	19K	$175,932
Jain Global LLCHedge fund	19K	$170,212
Qube Research & Technologies LtdHedge fund	17K	$150,954
Wealth Enhancement Advisory Services, LLC	14K	$120,373
Quadrature Capital LtdHedge fund	13K	$120,021

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Federated Hermes, Inc.Active manager	450K	$3M
Disciplined Growth Investors IncActive manager	196K	$1.3M
Vanguard Portfolio Management LLCIndex funds	57K	$375,374
Nuveen, LLC	33K	$219,731
Bank Of New York Mellon Corp	26K	$173,172
Charles Schwab Investment Management IncIndex funds	19K	$126,833
Virtu Financial LLC	17K	$111,000
D. E. Shaw & Co., Inc.Hedge fund	16K	$107,741
Deutsche Bank Ag\	16K	$103,166
Alliancebernstein L.P.Active manager	13K	$101,419

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 77
Ten largest holders: 78.0%
Index fund managers: 14.4%
Active managers and hedge funds: 13.0%

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	12	9	7	6	−168K	−15.5%
Index fund managers	1	8	0	2	−936K	−48.0%
Other institutions	35	35	12	21	+164K	+3.3%

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 Soundthinking.

Only managers that filed a holdings report for both quarters are compared (106 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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