Latest Period
Q1 2026
Security Snapshot
Xencor Inc - Common Stock (XNCR) Institutional Ownership
CUSIP: 98401F105
13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026
Institutions Reporting
202
Shares (Excl. Options)
84,450,917
Price
$12.06
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- Security type / class
- Equity / Common Stock
- Symbol
- XNCR on Nasdaq
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 84,450,917
- Total 13F value
- $1,018,157,124
- Portfolio coverage rank
- 0%
- Share change
- +2,728,779
- Value change
- +$22,751,680
- Number of holders
- 202
- Shares outstanding
- 75,275,862
- SEC-reported price per share
- $11.63
- Insider filing price
- $11.63
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- XNCR - Xencor Inc - Common Stock is tracked under CUSIP 98401F105.
- 202 institutions reported positions in Q1 2026.
- 8 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 205 to 202 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $1,252,502,619 to $1,018,157,124.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 202 institutions filings for Q1 2026.
Security key
98401F105
Latest holder period
Q1 2026
13F holders
202
13D/G owners
8
CIK / CUSIP context first
Open Q1 2026 holders
XNCR full holder history
Xencor Inc SEC filings
Xencor Inc company facts
Xencor Inc insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 98401F105:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
8
Security
XNCR
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 16% | -9.4% | $116,977,477 | -$11,261,518 | 11,130,112 | -8.8% | BlackRock, Inc. | 31 Mar 2025 |
| PRIMECAP MANAGEMENT CO/CA/ | 15% | $98,219,914 | 10,527,322 | PRIMECAP MANAGEMENT CO/CA/ | 30 Jun 2025 | |||
| BIOTECHNOLOGY VALUE FUND L P | 10% | +50% | $109,217,253 | +$38,495,142 | 7,133,720 | +54% | BVF PARTNERS L P/IL | 31 Dec 2025 |
| RTW INVESTMENTS, LP | 8.7% | $72,972,963 | 6,221,054 | RTW Investments, LP | 30 Sep 2025 | |||
| RA CAPITAL MANAGEMENT, L.P. | 6.5% | $58,261,890 | 4,736,739 | RA Capital Management, L.P. | 23 Mar 2026 | |||
| STATE STREET CORP | 6.3% | +22% | $69,006,059 | +$12,608,382 | 4,507,254 | +22% | STATE STREET CORPORATION | 31 Dec 2025 |
| EcoR1 Capital, LLC | 2.9% | -58% | $26,348,810 | -$29,655,990 | 2,183,000 | -53% | EcoR1 Capital, LLC | 31 Mar 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 2.4% | $19,862,315 | 1,693,292 | T. Rowe Price Associates, Inc. | 30 Sep 2025 |
As of 31 Mar 2026, 202 institutional investors reported holding 84,450,917 shares of Xencor Inc - Common Stock (XNCR). This represents 112% of the company’s total 75,275,862 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
97%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 17% | 13,035,918 | +9.3% | 0% | $157,213,171 |
| PRIMECAP MANAGEMENT CO/CA/ | 14% | 10,338,022 | +1.2% | 0.1% | $124,676,546 |
| BVF INC/IL | 9.5% | 7,133,720 | 0% | 2.7% | $86,032,663 |
| RTW INVESTMENTS, LP | 9% | 6,777,461 | 0% | 0.81% | $81,736,180 |
| RA CAPITAL MANAGEMENT, L.P. | 6.5% | 4,897,237 | 0.63% | $59,060,678 | |
| STATE STREET CORP | 5.8% | 4,352,036 | -3.4% | 0% | $52,485,554 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 4.7% | 3,500,342 | 0% | 0% | $42,214,125 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.1% | 3,101,647 | 0% | 0% | $37,405,863 |
| TCG Crossover Management, LLC | 3.3% | 2,452,138 | 0% | 0.85% | $29,572,784 |
| EcoR1 Capital, LLC | 2.9% | 2,183,000 | -33% | 1.1% | $26,326,980 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.4% | 1,815,577 | +3.6% | 0% | $21,900,915 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 2.1% | 1,560,420 | -2.6% | 0% | $18,820,000 |
| MORGAN STANLEY | 2.1% | 1,558,290 | +3.3% | 0% | $18,792,992 |
| DIMENSIONAL FUND ADVISORS LP | 1.7% | 1,294,887 | +3.6% | 0% | $15,612,575 |
| BAKER BROS. ADVISORS LP | 1.5% | 1,102,106 | 0% | 0.08% | $13,291,398 |
| UBS Group AG | 1.4% | 1,082,419 | +70% | 0% | $13,053,973 |
| Legal & General Group Plc | 1.4% | 1,066,780 | -18% | 0% | $12,865,366 |
| TWO SIGMA INVESTMENTS, LP | 1.1% | 805,421 | +200% | 0.01% | $9,713,377 |
| GOLDMAN SACHS GROUP INC | 1% | 763,793 | +1.4% | 0% | $9,211,343 |
| JOHNSON & JOHNSON | 0.99% | 748,062 | 0% | 1.4% | $9,021,628 |
| NORTHERN TRUST CORP | 0.99% | 744,519 | +10% | 0% | $8,978,899 |
| Jefferies Financial Group Inc. | 0.96% | 720,440 | 0% | 0.11% | $8,688,506 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.93% | 696,854 | -0.51% | 0% | $8,404,059 |
| PANAGORA ASSET MANAGEMENT INC | 0.82% | 620,756 | +6.3% | 0.03% | $7,486,317 |
| MILLENNIUM MANAGEMENT LLC | 0.81% | 609,788 | +2.6% | 0.01% | $7,354,043 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
49
Latest
Q1 2026
Rows shown
1-25 of 49
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 84,450,917 | $1,018,157,124 | +$22,751,680 | $12.06 | 202 |
| 2025 Q4 | 81,824,570 | $1,252,502,619 | -$15,445,404 | $15.31 | 205 |
| 2025 Q3 | 81,931,427 | $960,178,354 | +$6,100,028 | $11.73 | 204 |
| 2025 Q2 | 82,284,537 | $646,977,988 | +$20,020,454 | $7.86 | 191 |
| 2025 Q1 | 78,656,178 | $836,867,995 | +$36,707,472 | $10.64 | 197 |
| 2024 Q4 | 74,962,874 | $1,722,861,698 | +$74,554,042 | $22.98 | 191 |
| 2024 Q3 | 72,099,278 | $1,450,233,173 | +$173,590,110 | $20.11 | 209 |
| 2024 Q2 | 63,677,276 | $1,205,414,340 | -$28,620,202 | $18.93 | 197 |
| 2024 Q1 | 64,955,561 | $1,437,354,893 | +$38,858,883 | $22.13 | 200 |
| 2023 Q4 | 63,438,288 | $1,346,794,541 | +$2,946,816 | $21.23 | 194 |
| 2023 Q3 | 63,240,815 | $1,274,307,664 | +$10,877,356 | $20.15 | 175 |
| 2023 Q2 | 62,681,983 | $1,566,006,651 | -$23,444,287 | $24.97 | 180 |
| 2023 Q1 | 63,583,668 | $1,771,628,071 | +$59,782,147 | $27.89 | 183 |
| 2022 Q4 | 61,547,949 | $1,602,582,831 | +$19,403,618 | $26.04 | 193 |
| 2022 Q3 | 60,849,265 | $1,581,417,958 | -$74,640,726 | $25.98 | 174 |
| 2022 Q2 | 59,843,119 | $1,638,192,397 | +$20,569,513 | $27.37 | 168 |
| 2022 Q1 | 59,286,835 | $1,582,158,680 | -$1,530,095 | $26.68 | 169 |
| 2021 Q4 | 59,174,089 | $2,372,958,496 | +$30,709,697 | $40.12 | 171 |
| 2021 Q3 | 58,120,007 | $1,898,467,165 | +$947,702 | $32.66 | 165 |
| 2021 Q2 | 58,041,765 | $2,001,234,431 | -$24,285,884 | $34.49 | 173 |
| 2021 Q1 | 58,525,232 | $2,519,282,177 | -$25,684,890 | $43.06 | 167 |
| 2020 Q4 | 59,098,973 | $2,579,349,505 | +$122,069 | $43.63 | 169 |
| 2020 Q3 | 59,168,606 | $2,295,311,877 | +$21,234,216 | $38.79 | 157 |
| 2020 Q2 | 58,636,892 | $1,899,277,122 | +$203,952,745 | $32.39 | 151 |
| 2020 Q1 | 52,380,712 | $1,565,845,143 | -$41,704,286 | $29.88 | 137 |