PASADENA, CA
XENCOR INCXNCR— Latest position per institution from SEC 13F filings
15
Institutional holders
87.40M
Total shares held
1.13B
Estimated value
4.37M
Avg. position size
BLACKROCK, INC.
CIK 2012383
Shares
13.04M
Value
157.21M
Filed
Mar 31, 2026
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
11.10M
Value
210.18M
Filed
Jun 30, 2024
PRIMECAP MANAGEMENT CO/CA/
CIK 763212
Shares
10.34M
Value
124.68M
Filed
Mar 31, 2026
VANGUARD GROUP INC
CIK 102909
Shares
7.17M
Value
109.70M
Filed
Dec 31, 2025
BVF INC/IL
CIK 1056807
Shares
7.13M
Value
86.03M
Filed
Mar 31, 2026
RTW INVESTMENTS, LP
CIK 1493215
Shares
6.78M
Value
81.74M
Filed
Mar 31, 2026
RA CAPITAL MANAGEMENT, L.P.
CIK 1346824
Shares
4.90M
Value
59.06M
Filed
Mar 31, 2026
STATE STREET CORP
CIK 93751
Shares
4.35M
Value
52.49M
Filed
Mar 31, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
3.50M
Value
42.21M
Filed
Mar 31, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
3.10M
Value
37.41M
Filed
Mar 31, 2026
TCG CROSSOVER MANAGEMENT, LLC
CIK 1839948
Shares
2.45M
Value
29.57M
Filed
Mar 31, 2026
ECOR1 CAPITAL, LLC
CIK 1587114
Shares
2.18M
Value
26.33M
Filed
Mar 31, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
1.82M
Value
21.90M
Filed
Mar 31, 2026
PRICE T ROWE ASSOCIATES INC /MD/
CIK 80255
Shares
1.56M
Value
18.82K
Filed
Mar 31, 2026
MORGAN STANLEY
CIK 895421
Shares
1.56M
Value
18.79M
Filed
Mar 31, 2026
DEFILADE CAPITAL MANAGEMENT, L.P.
CIK 2088557
Shares
1.41M
Value
21.66M
Filed
Dec 31, 2025
T. ROWE PRICE INVESTMENT MANAGEMENT, INC.
CIK 1897612
Shares
1.35M
Value
28.69K
Filed
Dec 31, 2023
DIMENSIONAL FUND ADVISORS LP
CIK 354204
Shares
1.29M
Value
15.61M
Filed
Mar 31, 2026
LOGOS GLOBAL MANAGEMENT LP
CIK 1792126
Shares
1.25M
Value
9.82M
Filed
Jun 30, 2025
DARWIN GLOBAL MANAGEMENT, LTD.
CIK 1839209
Shares
1.11M
Value
24.56M
Filed
Mar 31, 2024
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | BLACKROCK, INC. | 2012383 | 13.04M | 157.21M | Mar 31, 2026 |
| 2 | BLACKROCK FINANCE, INC. | 1364742 | 11.10M | 210.18M | Jun 30, 2024 |
| 3 | PRIMECAP MANAGEMENT CO/CA/ | 763212 | 10.34M | 124.68M | Mar 31, 2026 |
| 4 | VANGUARD GROUP INC | 102909 | 7.17M | 109.70M | Dec 31, 2025 |
| 5 | BVF INC/IL | 1056807 | 7.13M | 86.03M | Mar 31, 2026 |
| 6 | RTW INVESTMENTS, LP | 1493215 | 6.78M | 81.74M | Mar 31, 2026 |
| 7 | RA CAPITAL MANAGEMENT, L.P. | 1346824 | 4.90M | 59.06M | Mar 31, 2026 |
| 8 | STATE STREET CORP | 93751 | 4.35M | 52.49M | Mar 31, 2026 |
| 9 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 3.50M | 42.21M | Mar 31, 2026 |
| 10 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 3.10M | 37.41M | Mar 31, 2026 |
| 11 | TCG CROSSOVER MANAGEMENT, LLC | 1839948 | 2.45M | 29.57M | Mar 31, 2026 |
| 12 | ECOR1 CAPITAL, LLC | 1587114 | 2.18M | 26.33M | Mar 31, 2026 |
| 13 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 1.82M | 21.90M | Mar 31, 2026 |
| 14 | PRICE T ROWE ASSOCIATES INC /MD/ | 80255 | 1.56M | 18.82K | Mar 31, 2026 |
| 15 | MORGAN STANLEY | 895421 | 1.56M | 18.79M | Mar 31, 2026 |
| 16 | DEFILADE CAPITAL MANAGEMENT, L.P. | 2088557 | 1.41M | 21.66M | Dec 31, 2025 |
| 17 | T. ROWE PRICE INVESTMENT MANAGEMENT, INC. | 1897612 | 1.35M | 28.69K | Dec 31, 2023 |
| 18 | DIMENSIONAL FUND ADVISORS LP | 354204 | 1.29M | 15.61M | Mar 31, 2026 |
| 19 | LOGOS GLOBAL MANAGEMENT LP | 1792126 | 1.25M | 9.82M | Jun 30, 2025 |
| 20 | DARWIN GLOBAL MANAGEMENT, LTD. | 1839209 | 1.11M | 24.56M | Mar 31, 2024 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.