$XNCR

$29.21 +$0.03 (0.1%) After hours

$XNCR Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 74.4M shares outstanding

Who owns XNCR?

By type of holder

Institutions 100.0% Insiders 0.0% Everyone else 0.0%

Concentration Top 10 holders own 78.4%

BlackRock, Inc. 18.4% · Primecap Management Co/ca/ 13.7%

Institutional ownership

100.0%

0 pts vs last qtr

Institutional holders

206

+3 vs last qtr

Net shares bought

−494.2K

by institutions in Q2 2026

New / sold out

32 / 29

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Price T Rowe Associates Inc /MD/ +796.0K
BlackRock, Inc. +615.3K

Biggest sellers in Q2 2026

EcoR1 Capital, LLC SOLD OUT −2.2M
Vanguard Portfolio Management LLC −1.3M

Who is planning to sell?

Notices of proposed sale, last 12 months

$3.9M

18 notices from 9 people

Shares covered

268.2K

0.36% of the company

Arranged in advance

10%

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Dahiyat Bassil I Officer $2.12M
Desjarlais John R Officer $1.26M

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2016–FY2025

+75.1%

+6.42% a year

Each share's claim on the business

−42.9%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $342M

over 10 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years61% 3–5 years5% 1–3 years23% Under 1 year11%

Quarterly turnover

8.2%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting XNCR on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	13.7M	18.36%	+615.3K (+4.7%)	≤2021	0.0%
Shares held by quarter Peak holding13.7M (Q2'26) Change over 8 quarters+2.6M Share of the company18.360% BlackRock, Inc.'s full portfolio →
PM Primecap Management Co/ca/	10.2M	13.69%	−156.7K (−1.5%)	≤2021	0.1%
Shares held by quarter Peak holding10.7M (Q3'25) Change over 8 quarters+1.0M Share of the company13.690% Primecap Management Co/ca/'s full portfolio →

BlackRock, Inc.

13.7M

% of company

18.36%

Change vs last qtr

+615.3K (+4.7%)

Held since

≤2021

Primecap Management Co/ca/

10.2M

% of company

13.69%

Change vs last qtr

−156.7K (−1.5%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding Xencor, Inc., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting XNCR on Form N-PORT; together they hold 48.7% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
PO PRIMECAP Odyssey Aggressive Growth Fund PRIMECAP Odyssey Funds	$128M	6.3M	8.52%	1.73%	July 31, 2026
IC iShares Core S&P Small-Cap ETF iShares Trust	$71.7M	4.5M	5.99%	0.06%	June 30, 2026

PRIMECAP Odyssey Aggressive Growth Fund

PRIMECAP Odyssey Funds

Position value

$128M

% of company

8.52%

% of the fund

1.73%

As of

July 31, 2026

iShares Core S&P Small-Cap ETF

iShares Trust

Position value

$71.7M

% of company

5.99%

% of the fund

0.06%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Xencor, Inc. and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
DB Dahiyat Bassil I Insider	546.3K	0.73%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.730% Dahiyat Bassil I's insider activity →
DJ Desjarlais John R Insider	263.8K	0.35%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.350% Desjarlais John R's insider activity →

Dahiyat Bassil I

Insider

546.3K

% of company

0.73%

Change vs last qtr

—

Held since

—

Desjarlais John R

Insider

263.8K

% of company

0.35%

Change vs last qtr

—

Held since

—

11 more holders behind a free account

See every insider and 5%+ holder of Xencor, Inc..

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