Stock Ownership/XNCR

XENCOR INC (XNCR): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in XNCR · Health Care. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
15
13F filers
Aggregate Value
$229.3M
Across holders
Last Price
$29.00
2026-08-24
Sector
Health Care
GICS
Quarterly fund activity8 increased6 reduced2 exited
Full exits: RENAISSANCE TECHNOLOGIES LLC, Qube Research & Technologies Ltd
Institutional Holders of XNCR
↗
15 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
PRIMECAP MANAGEMENT CO/CA/
CIK 0000763212
Institutional Manager10.18M$163.9M71.5%0.1%Reduced$-2.5MQ2 2026
BAKER BROS. ADVISORS LP
CIK 0001263508
Hedge Fund1.10M$17.7M7.7%0.1%Unchanged+$0Q2 2026
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund854K$13.7M6.0%0.0%Added+$3.9MQ2 2026
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund820K$13.2M5.8%0.0%Added+$227KQ2 2026
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund484K$7.8M3.4%0.0%Added$-9.8MQ2 2026
Hudson Bay Capital Management LP
CIK 0001393825
Hedge Fund210K$3.4M1.5%0.0%Reduced+$3.3MQ2 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund191K$3.1M1.3%0.0%Reduced+$2.2MQ2 2026
VOLORIDGE INVESTMENT MANAGEMENT, LLC
CIK 0001556921
Hedge Fund81K$1.3M0.6%0.0%Reduced$-358KQ2 2026
TUDOR INVESTMENT CORP ET AL
CIK 0000923093
Hedge Fund73K$1.2M0.5%0.0%Added+$468KQ2 2026
Point72 Asset Management, L.P.
CIK 0001603466
Hedge Fund72K$1.2M0.5%0.0%Added—Q2 2026
PRIMECAP MANAGEMENT CO/CA/Reduced
Institutional Manager
$163.9M· 71.5% of total· 0.1% port· 10.18M sh· $-2.5M QoQ· Q2 2026
BAKER BROS. ADVISORS LPUnchanged
Hedge Fund
$17.7M· 7.7% of total· 0.1% port· 1.10M sh· +$0 QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCAdded
Hedge Fund
$13.7M· 6.0% of total· 0.0% port· 854K sh· +$3.9M QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPAdded
Hedge Fund
$13.2M· 5.8% of total· 0.0% port· 820K sh· +$227K QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$7.8M· 3.4% of total· 0.0% port· 484K sh· $-9.8M QoQ· Q2 2026
Hudson Bay Capital Management LPReduced
Hedge Fund
$3.4M· 1.5% of total· 0.0% port· 210K sh· +$3.3M QoQ· Q2 2026
CITADEL ADVISORS LLCReduced
Hedge Fund
$3.1M· 1.3% of total· 0.0% port· 191K sh· +$2.2M QoQ· Q2 2026
VOLORIDGE INVESTMENT MANAGEMENT, LLCReduced
Hedge Fund
$1.3M· 0.6% of total· 0.0% port· 81K sh· $-358K QoQ· Q2 2026
TUDOR INVESTMENT CORP ET ALAdded
Hedge Fund
$1.2M· 0.5% of total· 0.0% port· 73K sh· +$468K QoQ· Q2 2026
Point72 Asset Management, L.P.Added
Hedge Fund
$1.2M· 0.5% of total· 0.0% port· 72K sh· — QoQ· Q2 2026
Man Group plcReduced
Hedge Fund
$940K· 0.4% of total· 0.0% port· 58K sh· $-569K QoQ· Q2 2026
SHAW D E & CO INCAdded
Hedge Fund
$813K· 0.4% of total· 0.0% port· 50K sh· — QoQ· Q2 2026
Squarepoint Ops LLCAdded
Hedge Fund
$459K· 0.2% of total· 0.0% port· 29K sh· — QoQ· Q2 2026
Rockefeller Capital Management L.P.Added
Hedge Fund
$334K· 0.1% of total· 0.0% port· 21K sh· $-491K QoQ· Q2 2026
Brevan Howard Capital Management LPReduced
Hedge Fund
$285K· 0.1% of total· 0.0% port· 18K sh· $-402K QoQ· Q2 2026
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