SOUTH SAN FRANCISCO, CA
CYTOMX THERAPEUTICS, INC.CTMX— Latest position per institution from SEC 13F filings
15
Institutional holders
170.89M
Total shares held
734.64M
Estimated value
8.54M
Avg. position size
FMR LLC
CIK 315066
Shares
31.96M
Value
150.19M
Filed
Mar 31, 2026
KYNAM CAPITAL MANAGEMENT, LP
CIK 1907884
Shares
15.01M
Value
70.56M
Filed
Mar 31, 2026
TANG CAPITAL MANAGEMENT LLC
CIK 1232621
Shares
11.07M
Value
35.30M
Filed
Sep 30, 2025
BANK OF AMERICA CORP /DE/
CIK 70858
Shares
10.20M
Value
47.95M
Filed
Mar 31, 2026
PERCEPTIVE ADVISORS LLC
CIK 1224962
Shares
10.10M
Value
47.46M
Filed
Mar 31, 2026
VENROCK ADVISER, LLC
CIK 1615982
Shares
9.98M
Value
46.92M
Filed
Mar 31, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
8.73M
Value
41.05M
Filed
Mar 31, 2026
VANGUARD GROUP INC
CIK 102909
Shares
8.48M
Value
36.11M
Filed
Dec 31, 2025
POINT72 ASSET MANAGEMENT, L.P.
CIK 1603466
Shares
7.88M
Value
37.01M
Filed
Mar 31, 2026
COMMODORE CAPITAL LP
CIK 1831942
Shares
7.69M
Value
32.77M
Filed
Dec 31, 2025
CITADEL ADVISORS LLC
CIK 1423053
Shares
5.90M
Value
27.73M
Filed
Mar 31, 2026
FRANKLIN RESOURCES INC
CIK 38777
Shares
5.77M
Value
13.10M
Filed
Jun 30, 2025
STATE STREET CORP
CIK 93751
Shares
5.66M
Value
26.62M
Filed
Mar 31, 2026
BVF INC/IL
CIK 1056807
Shares
5.23M
Value
3.32M
Filed
Mar 31, 2025
BLACKROCK, INC.
CIK 2012383
Shares
5.23M
Value
24.57M
Filed
Mar 31, 2026
BAKER BROS. ADVISORS LP
CIK 1263508
Shares
4.98M
Value
23.39M
Filed
Mar 31, 2026
ELMIND CAPITAL, LP
CIK 2052213
Shares
4.55M
Value
21.39M
Filed
Mar 31, 2026
NEXTECH INVEST, LTD.
CIK 1595430
Shares
4.45M
Value
20.91M
Filed
Mar 31, 2026
MARSHALL WACE, LLP
CIK 1318757
Shares
4.14M
Value
19.45M
Filed
Mar 31, 2026
FAIRMOUNT FUNDS MANAGEMENT LLC
CIK 1802528
Shares
3.90M
Value
8.85M
Filed
Jun 30, 2025
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | FMR LLC | 315066 | 31.96M | 150.19M | Mar 31, 2026 |
| 2 | KYNAM CAPITAL MANAGEMENT, LP | 1907884 | 15.01M | 70.56M | Mar 31, 2026 |
| 3 | TANG CAPITAL MANAGEMENT LLC | 1232621 | 11.07M | 35.30M | Sep 30, 2025 |
| 4 | BANK OF AMERICA CORP /DE/ | 70858 | 10.20M | 47.95M | Mar 31, 2026 |
| 5 | PERCEPTIVE ADVISORS LLC | 1224962 | 10.10M | 47.46M | Mar 31, 2026 |
| 6 | VENROCK ADVISER, LLC | 1615982 | 9.98M | 46.92M | Mar 31, 2026 |
| 7 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 8.73M | 41.05M | Mar 31, 2026 |
| 8 | VANGUARD GROUP INC | 102909 | 8.48M | 36.11M | Dec 31, 2025 |
| 9 | POINT72 ASSET MANAGEMENT, L.P. | 1603466 | 7.88M | 37.01M | Mar 31, 2026 |
| 10 | COMMODORE CAPITAL LP | 1831942 | 7.69M | 32.77M | Dec 31, 2025 |
| 11 | CITADEL ADVISORS LLC | 1423053 | 5.90M | 27.73M | Mar 31, 2026 |
| 12 | FRANKLIN RESOURCES INC | 38777 | 5.77M | 13.10M | Jun 30, 2025 |
| 13 | STATE STREET CORP | 93751 | 5.66M | 26.62M | Mar 31, 2026 |
| 14 | BVF INC/IL | 1056807 | 5.23M | 3.32M | Mar 31, 2025 |
| 15 | BLACKROCK, INC. | 2012383 | 5.23M | 24.57M | Mar 31, 2026 |
| 16 | BAKER BROS. ADVISORS LP | 1263508 | 4.98M | 23.39M | Mar 31, 2026 |
| 17 | ELMIND CAPITAL, LP | 2052213 | 4.55M | 21.39M | Mar 31, 2026 |
| 18 | NEXTECH INVEST, LTD. | 1595430 | 4.45M | 20.91M | Mar 31, 2026 |
| 19 | MARSHALL WACE, LLP | 1318757 | 4.14M | 19.45M | Mar 31, 2026 |
| 20 | FAIRMOUNT FUNDS MANAGEMENT LLC | 1802528 | 3.90M | 8.85M | Jun 30, 2025 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.