Hackett Group, Inc.: which funds bought and sold

Institutions that bought and sold Hackett Group 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, 89 institutions that filed 13F reports for both quarters added to or opened positions in Hackett Group, and 91 cut or closed them. Together they sold a net 236K shares, −1.1% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 89K shares (−1.3%); index fund managers were net sellers of 609K shares (−10.3%). 32 opened a new position and 37 sold out entirely.

Bought, Q2 2026 89 institutions, 32 of them new holders Sold, Q2 2026 91 institutions, 37 of them sold out

Net change, all compared −236K shares (−1.1%)

Net change, active managers −89K shares (−1.3%), 16 bought, 16 sold

Buyers versus sellers

institutions compared, 200

89 bought 20 91 sold

Active managers and hedge funds 16 bought · 16 sold · −89K

Index fund managers 2 bought · 8 sold · −609K

Other institutions 71 bought · 67 sold · +463K

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Millennium Management LLC Hedge fund	+549K +153.0%	908K	$9.8M
Pacific Ridge Capital Partners, LLC	+541K +801.2%	609K	$6.6M
Russell Investments Group, Ltd.	+469K +174.3%	738K	$8M
Nuveen, LLC	+355K +482.5%	429K	$4.6M
Royce & Associates LP Active manager	+132K +4.5%	3.1M	$33.3M
Values First Advisors, Inc.	+119K +188.6%	183K	$2M
AQR Capital Management LLC Hedge fund	+106K +92.3%	221K	$2.4M
North Star Investment Management Corp.	+104K +146.0%	175K	$1.9M
Linden Thomas Advisory Services, LLC	+93K +68.8%	228K	$2.5M
Atom Investors LP	+62K New position	62K	$667,449
FMR LLC Active manager	+56K +456.1%	68K	$731,333
Federated Hermes, Inc. Active manager	+53K +29.9%	229K	$2.5M
Y-Intercept (Hong Kong) Ltd	+47K New position	47K	$502,291
Sanctuary Advisors, LLC	+39K New position	39K	$424,112
Goldman Sachs Group Inc	+33K +3.8%	896K	$9.7M
Xtx Topco Ltd	+31K New position	31K	$333,924
Prescott Group Capital Management, L.L.C.	+30K New position	30K	$323,100
Bridgeway Capital Management, LLC Active manager	+29K New position	29K	$312,330
Punch & Associates Investment Management, Inc.	+29K +6.5%	475K	$5.1M
Jane Street Group, LLC	+28K New position	28K	$305,459

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Millennium Management LLC Hedge fund	+549K +153.0%	908K	$9.8M
Royce & Associates LP Active manager	+132K +4.5%	3.1M	$33.3M
AQR Capital Management LLC Hedge fund	+106K +92.3%	221K	$2.4M
FMR LLC Active manager	+56K +456.1%	68K	$731,333
Federated Hermes, Inc. Active manager	+53K +29.9%	229K	$2.5M
Bridgeway Capital Management, LLC Active manager	+29K New position	29K	$312,330
Jain Global LLC Hedge fund	+17K New position	17K	$181,528
Brevan Howard Capital Management LP Hedge fund	+17K New position	17K	$178,545
Price T Rowe Associates Inc Active manager	+16K +20.0%	97K	$1M
Walleye Capital LLC Hedge fund	+14K New position	14K	$148,303

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
UBS Group AG	−474K −88.4%	62K	$670,562
Ariel Investments, LLC Active manager	−426K Sold out	0	—
Blackrock, Inc. Index funds	−328K −15.7%	1.8M	$19M
State Street Corp Index funds	−235K −29.2%	570K	$6.2M
Two Sigma Investments, LP Hedge fund	−226K −28.2%	573K	$6.2M
SG Americas Securities, LLC	−166K Sold out	0	—
Morgan Stanley	−130K −19.4%	539K	$5.8M
Creative Planning	−128K −88.4%	17K	$179,374
Lazard Asset Management LLC Active manager	−125K Sold out	0	—
Potomac Capital Management, Inc.	−117K Sold out	0	—
Renaissance Technologies LLC Hedge fund	−117K −13.0%	783K	$8.4M
Bank Of America Corp	−83K −10.4%	713K	$7.7M
Dimensional Fund Advisors LP	−83K −10.2%	727K	$7.8M
Quantinno Capital Management LP	−79K −39.7%	121K	$1.3M
Isthmus Partners, LLC	−77K −44.2%	97K	$1M
Globeflex Capital L P	−77K Sold out	0	—
Trexquant Investment LP Hedge fund	−67K Sold out	0	—
Swiss National Bank	−48K Sold out	0	—
Victory Capital Management Inc Active manager	−43K Sold out	0	—
UBS Am, A Distinct Business Unit Of UBS Asset Management Americas LLC	−38K −97.7%	890	$9,585

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Ariel Investments, LLC Active manager	−426K Sold out	0	—
Two Sigma Investments, LP Hedge fund	−226K −28.2%	573K	$6.2M
Lazard Asset Management LLC Active manager	−125K Sold out	0	—
Renaissance Technologies LLC Hedge fund	−117K −13.0%	783K	$8.4M
Trexquant Investment LP Hedge fund	−67K Sold out	0	—
Victory Capital Management Inc Active manager	−43K Sold out	0	—
Engineers Gate Manager LP Hedge fund	−32K Sold out	0	—
Magnetar Financial LLC Hedge fund	−26K Sold out	0	—
Citadel Advisors LLC Hedge fund	−17K −22.4%	60K	$642,118
Arrowstreet Capital, Limited Partnership Hedge fund	−12K Sold out	0	—

New positions

largest by value

Institution	Shares	Value June 30, 2026
Atom Investors LP	62K	$667,449
Y-Intercept (Hong Kong) Ltd	47K	$502,291
Sanctuary Advisors, LLC	39K	$424,112
Xtx Topco Ltd	31K	$333,924
Prescott Group Capital Management, L.L.C.	30K	$323,100
Bridgeway Capital Management, LLCActive manager	29K	$312,330
Jane Street Group, LLC	28K	$305,459
Ameriprise Financial Inc	19K	$211,129
Symmetry Partners, LLC	19K	$206,138
Fifth Third Wealth Advisors LLC	17K	$182,358

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Ariel Investments, LLCActive manager	426K	$5.5M
SG Americas Securities, LLC	166K	$2.2M
Lazard Asset Management LLCActive manager	125K	$1.6M
Potomac Capital Management, Inc.	117K	$1.5M
Globeflex Capital L P	77K	$1M
Trexquant Investment LPHedge fund	67K	$876,380
Swiss National Bank	48K	$625,677
Victory Capital Management IncActive manager	43K	$552,964
Engineers Gate Manager LPHedge fund	32K	$414,434
Teacher Retirement System Of Texas	30K	$390,274

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 165
Ten largest holders: 54.1%
Index fund managers: 25.1%
Active managers and hedge funds: 32.2%

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	16	16	4	9	−89K	−1.3%
Index fund managers	2	8	0	0	−609K	−10.3%
Other institutions	71	67	28	28	+463K	+5.4%

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 Hackett Group.

Only managers that filed a holdings report for both quarters are compared (200 here). 4 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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