Security key
98401F105
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 84,450,917
- Total 13F value
- $1,018,157,124
- Share change
- +2,728,733
- SEC-reported price per share
- $12.06
- Number of holders
- 202
- Value change
- +$22,750,976
- Number of buys
- 90
- Number of sells
- 91
- Shares outstanding
- 75,275,862
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2026
Institutions
202
Top holders
10
XNCR full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2026
Previous quarter: Q4 2025
Xencor Inc SEC filings
Xencor Inc company facts
Broader feeds
Reporting periods
Holder history for CUSIP 98401F105
Recent filing periods:
Ownership snapshot
Top reported holders of XNCR - Xencor Inc - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
15/15
Latest evidence
23 Mar 2026
13F
13D/G
3/4/5
Lead comparable stake: 16%
13D/G row: BlackRock, Inc.
Showing 1-6 of 15 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 16%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock, Inc.
16%
PRIMECAP MANAGEMENT CO/CA/
15%
BIOTECHNOLOGY VALUE FUND L P
10%
RTW INVESTMENTS, LP
8.7%
RA CAPITAL MANAGEMENT, L.P.
6.5%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
Company
|
16%
from 13D/G
|
$182,605,708
11,927,218 shares
|
— | 31 Dec 2025 |
| PRIMECAP MANAGEMENT CO/CA/ |
13F
13D/G
Company
|
15%
from 13D/G
|
$156,442,509
10,218,322 shares
|
— | 31 Dec 2025 |
| BIOTECHNOLOGY VALUE FUND L P |
13D/G
BVF PARTNERS L P/IL
|
10%
|
$109,217,253
7,133,720 shares
|
+$38,495,142 | 31 Dec 2025 |
| RTW INVESTMENTS, LP |
13F
13D/G
Company
|
8.7%
from 13D/G
|
$103,762,928
6,777,461 shares
|
— | 31 Dec 2025 |
| RA CAPITAL MANAGEMENT, L.P. |
13D/G
|
6.5%
|
$58,261,890
4,736,739 shares
|
$0 | 23 Mar 2026 |
| STATE STREET CORP |
13F
13D/G
Company · STATE STREET CORPORATION
|
6.3%
from 13D/G
|
$69,006,059
4,507,254 shares
|
— | 31 Dec 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
202
Shares
84,450,917
Rows available
202
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2026 vs Q4 2025 Across Filers
Q4 2025 holders
206
Q1 2026 holders
202
Holder diff
-4
| Investor | Q4 2025 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q4 2025 value | Q1 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend