Xencor Inc: which funds bought and sold

Institutions that bought and sold Xencor 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, 113 institutions that filed 13F reports for both quarters added to or opened positions in Xencor, and 80 cut or closed them. Together they sold a net 266K shares, −0.3% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 1.0M shares (−3.2%); index fund managers were net buyers of 279K shares (+1.0%). 30 opened a new position and 24 sold out entirely.

Bought, Q2 2026 113 institutions, 30 of them new holders Sold, Q2 2026 80 institutions, 24 of them sold out

Net change, all compared −266K shares (−0.3%)

Net change, active managers −1.0M shares (−3.2%), 20 bought, 20 sold

Buyers versus sellers

institutions compared, 228

113 bought 35 80 sold

Active managers and hedge funds 20 bought · 20 sold · −1.0M

Index fund managers 8 bought · 3 sold · +279K

Other institutions 85 bought · 57 sold · +490K

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Price T Rowe Associates Inc Active manager	+796K +51.0%	2.4M	$37.9M
Blackrock, Inc. Index funds	+615K +4.7%	13.7M	$220M
State Street Corp Index funds	+602K +13.8%	5.0M	$79.8M
Deep Track Capital, LP Hedge fund	+594K New position	594K	$9.6M
RA Capital Management, L.P. Hedge fund	+377K +7.7%	5.3M	$84.9M
AQR Capital Management LLC Hedge fund	+321K +197.9%	484K	$7.8M
Seven Fleet Capital Management LP	+288K +360.4%	368K	$7.8M
UBS Am, A Distinct Business Unit Of UBS Asset Management Americas LLC	+261K +214.9%	382K	$6.2M
Millennium Management LLC Hedge fund	+244K +40.0%	854K	$13.7M
UBS Group AG	+224K +20.7%	1.3M	$21M
Goldman Sachs Group Inc	+205K +26.8%	969K	$15.6M
Morgan Stanley	+194K +12.5%	1.8M	$28.2M
Vanguard Capital Management LLC Index funds	+177K +5.7%	3.3M	$52.8M
Kornitzer Capital Management Inc	+151K New position	151K	$2.4M
ADAR1 Capital Management, LLC Hedge fund	+139K +148.3%	233K	$3.7M
Jump Financial, LLC	+120K +1143.9%	131K	$2.1M
Geode Capital Management, LLC Index funds	+105K +5.8%	1.9M	$30.9M
Trexquant Investment LP Hedge fund	+100K +224.9%	145K	$2.3M
Point72 Asset Management, L.P. Hedge fund	+72K New position	72K	$1.2M
HSBC Holdings PLC	+67K +114.2%	125K	$2.1M

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Price T Rowe Associates Inc Active manager	+796K +51.0%	2.4M	$37.9M
Deep Track Capital, LP Hedge fund	+594K New position	594K	$9.6M
RA Capital Management, L.P. Hedge fund	+377K +7.7%	5.3M	$84.9M
AQR Capital Management LLC Hedge fund	+321K +197.9%	484K	$7.8M
Millennium Management LLC Hedge fund	+244K +40.0%	854K	$13.7M
ADAR1 Capital Management, LLC Hedge fund	+139K +148.3%	233K	$3.7M
Trexquant Investment LP Hedge fund	+100K +224.9%	145K	$2.3M
Point72 Asset Management, L.P. Hedge fund	+72K New position	72K	$1.2M
Panagora Asset Management Inc Active manager	+59K +9.6%	680K	$11M
D. E. Shaw & Co., Inc. Hedge fund	+50K New position	50K	$812,648

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Ecor1 Capital, LLC Hedge fund	−2.2M Sold out	0	—
Vanguard Portfolio Management LLC Index funds	−1.3M −36.7%	2.2M	$35.7M
Lynx1 Capital Management LP	−518K −96.6%	18K	$292,923
Erste Asset Management Gmbh	−338K −78.6%	92K	$1.4M
Jacobs Levy Equity Management, Inc Active manager	−293K Sold out	0	—
Dimensional Fund Advisors LP	−284K −21.9%	1.0M	$16.3M
Hudson Bay Capital Management LP Hedge fund	−277K −56.9%	210K	$3.4M
Nantahala Capital Management, LLC Hedge fund	−265K Sold out	0	—
Acadian Asset Management LLC Active manager	−224K −76.7%	68K	$1.1M
Citadel Advisors LLC Hedge fund	−187K −49.5%	191K	$3.1M
Primecap Management Co Active manager	−157K −1.5%	10.2M	$164M
Deutsche Bank Ag\	−104K −46.4%	120K	$1.9M
Algert Global LLC Hedge fund	−80K Sold out	0	—
Gsa Capital Partners LLP	−72K −67.6%	35K	$556,000
Drw Securities, LLC	−48K Sold out	0	—
Exoduspoint Capital Management, LP Hedge fund	−48K Sold out	0	—
Campbell & Co Investment Adviser LLC	−44K Sold out	0	—
Intech Investment Management LLC Active manager	−43K −72.7%	16K	$258,261
Linden Thomas Advisory Services, LLC	−42K Sold out	0	—
Russell Investments Group, Ltd.	−37K −45.0%	45K	$730,631

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Ecor1 Capital, LLC Hedge fund	−2.2M Sold out	0	—
Jacobs Levy Equity Management, Inc Active manager	−293K Sold out	0	—
Hudson Bay Capital Management LP Hedge fund	−277K −56.9%	210K	$3.4M
Nantahala Capital Management, LLC Hedge fund	−265K Sold out	0	—
Acadian Asset Management LLC Active manager	−224K −76.7%	68K	$1.1M
Citadel Advisors LLC Hedge fund	−187K −49.5%	191K	$3.1M
Primecap Management Co Active manager	−157K −1.5%	10.2M	$164M
Algert Global LLC Hedge fund	−80K Sold out	0	—
Exoduspoint Capital Management, LP Hedge fund	−48K Sold out	0	—
Intech Investment Management LLC Active manager	−43K −72.7%	16K	$258,261

New positions

largest by value

Institution	Shares	Value June 30, 2026
Deep Track Capital, LPHedge fund	594K	$9.6M
Kornitzer Capital Management Inc	151K	$2.4M
Point72 Asset Management, L.P.Hedge fund	72K	$1.2M
D. E. Shaw & Co., Inc.Hedge fund	50K	$812,648
Squarepoint Ops LLCHedge fund	29K	$458,963
Natixis Advisors, LLC	24K	$390,000
Mariner, LLC	18K	$284,609
Ieq Capital, LLC	18K	$284,036
Mercer Global Advisors Inc	17K	$276,132
Axq Capital, LP	16K	$261,062

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Ecor1 Capital, LLCHedge fund	2.2M	$26.3M
Jacobs Levy Equity Management, IncActive manager	293K	$3.5M
Nantahala Capital Management, LLCHedge fund	265K	$3.2M
Algert Global LLCHedge fund	80K	$970,709
Drw Securities, LLC	48K	$584,210
Exoduspoint Capital Management, LPHedge fund	48K	$579,760
Campbell & Co Investment Adviser LLC	44K	$524,924
Linden Thomas Advisory Services, LLC	42K	$507,533
Qube Research & Technologies LtdHedge fund	21K	$253,200
Renaissance Technologies LLCHedge fund	19K	$225,799

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 207
Ten largest holders: 69.2%
Index fund managers: 33.6%
Active managers and hedge funds: 36.8%

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	20	20	5	11	−1.0M	−3.2%
Index fund managers	8	3	0	0	+279K	+1.0%
Other institutions	85	57	25	13	+490K	+2.0%

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 Xencor.

Only managers that filed a holdings report for both quarters are compared (228 here). 7 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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