Xencor
XNCR · NASDAQ
$24.94+$1.75 (+7.55%)TodayMarket closed ·
Prev close $23.19
Who owns XNCR
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 75.5% of XNCR’s shares.
- BlackRock Institutional Trust Company, N.A.15.5%
- PRIMECAP Management Company13.7%
- BVF Partners L.P.9.6%
- RTW Investments L.P.9.1%
- Next 6 largest institutions27.5%
- All other shareholders24.5%
| Holder | Shares | % of shares |
|---|---|---|
| BlackRock Institutional Trust Company, N.A. | 11.53M | 15.55% |
| PRIMECAP Management Company | 10.18M | 13.73% |
| BVF Partners L.P. | 7.13M | 9.62% |
| RTW Investments L.P. | 6.78M | 9.14% |
| RA Capital Management, LP | 5.27M | 7.11% |
| State Street Investment Management (US) | 4.95M | 6.68% |
| Vanguard Capital Management, LLC | 3.28M | 4.42% |
| TCG Crossover Management, LLC | 2.45M | 3.31% |
| Vanguard Portfolio Management, LLC | 2.22M | 2.99% |
| T. Rowe Price Associates, Inc. | 2.20M | 2.97% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| PRIMECAP Odyssey Aggressive Growth Fund | 6.36M | 8.58% |
| iShares Core S&P Small-Cap ETF | 4.52M | 6.09% |
| PRIMECAP Odyssey Growth Fund | 3.13M | 4.23% |
| Vanguard Total Stock Market Index Fund | 2.34M | 3.16% |
| State Street SPDR S&P Biotech ETF | 2.05M | 2.76% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $379.13K (5 trades) of XNCR on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Feigal Ellen | Sale | 6.84K | $89.37K |
| Deshaies Raymond Joseph | Award | 20.60K | — |
| Deshaies Raymond Joseph | Award | 10.30K | — |
| Feigal Ellen | Award | 20.60K | — |
| Feigal Ellen | Award | 10.30K | — |
| Klencke Barbara | Award | 20.60K | — |
| Klencke Barbara | Award | 10.30K | — |
| GUSTAFSON KURT A | Award | 20.60K | — |
| GUSTAFSON KURT A | Award | 10.30K | — |
| Montgomery Alan Bruce | Award | 20.60K | — |
Short interest
Settled Sep 30, 2026
- Shares short
- 16.37M
- Days to cover
- 10.11
- % of shares outstanding
- 22.08%
- Average daily volume
- 1.62M
- Change since last report
- +3.9%
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