CytomX Therapeutics (CTMX)
Develops tumor-localized, conditionally activated oncology biologics through its PROBODY platform.
$2.78
vs last close−0.17 (−5.61%)
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13F · 13D/G · Form 4
| Institutions | ≈ 97.40% | 212.23M shares | |
|---|---|---|---|
| 189 holders · as of Jun 30, 2026 · largest filers plus last quarter's tail | |||
| Insiders | 0.92% | 2.01M shares | |
| 7 holders · as of Aug 5, 2026 | |||
| Strategic holders | 5.72% | 12.46M shares | |
| 1 holder · as of May 15, 2026 | |||
| Adds to | 104.04% | ||
217.90M company shares as of Sep 23, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.
These groups come from separate filings that can overlap, so they add to 104.04%; nothing is left for Other.
13F, as of Jun 30, 2026
189 holders · 212.23M shares · 49 new positions · 121 increased · 32 reduced · 48 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| FMR LLC | 32.71M | 15.01% | +759.3K | Aug 13, 2026 |
| Kynam Capital Management, LP | 21.70M | 9.96% | +6.69M | Aug 14, 2026 |
| BlackRock, Inc. | 17.56M | 8.06% | +12.33M | Aug 7, 2026 |
| Bank of America Corp /DE/ | 15.08M | 6.92% | +4.88M | Aug 14, 2026 |
| State Street Corp | 11.75M | 5.39% | +6.08M | Aug 7, 2026 |
| Perceptive Advisors LLC | 10.44M | 4.79% | +340.4K | Aug 14, 2026 |
| Vanguard Capital Management LLC | 8.53M | 3.91% | −207.7K | Aug 13, 2026 |
| Point72 Asset Management, L.P. | 7.81M | 3.58% | −64.4K | Aug 14, 2026 |
13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| FMR LLC | 14.60% | 24.69M | 13G | Feb 5, 2026 |
| BlackRock, Inc. | 7.60% | 16.55M | 13G | Jul 27, 2026 |
| Bank of America Corp /DE/ | 7.00% | 15.13M | 13G | Aug 3, 2026 |
| Kynam Capital Management, LP | 6.90% | 0 | 13G | May 15, 2026 |
| Longitude Capital Partners V, LLC | 5.70% | 12.46M | 13G | May 15, 2026 |
| State Street Corporation | 5.40% | 11.75M | 13G | Aug 7, 2026 |
| Point72 Asset Management, L.P. | 5.00% | 10.86M | 13G | Apr 16, 2026 |
Form 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Jun 15, 2026 | Christopher Ogdenofficer: Chief Financial Officer | Sale | 1,624 | $3.05 | 295,324 |
| Mar 17, 2026 | Christopher Ogdenofficer: Chief Financial Officer | Sale | 19,323 | $6.42 | 296,948 |
| Mar 17, 2026 | Marcia Belvinofficer: SVP, Chief Scientific Officer | Sale | 31,492 | $6.42 | 300,760 |
| Mar 17, 2026 | Sean A. McCarthydirector, officer: CEO | Sale | 118,969 | $6.42 | 1,078,922 |
| Mar 17, 2026 | Yu-Waye Chuofficer: Chief Medical Officer | Sale | 21,279 | $6.42 | 189,446 |
| Nov 6, 2025 | Sean A. McCarthydirector, officer: CEO | Sale | 101,793 | $4.54 | 987,891 |
House and Senate disclosures
Not reported.