CT
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Bank of America Corp
· Added
Change
+9.3M
Date
Q1 2026
|
Bank of America Corp | Added· Q1 2026 | – | +9.3M | – | Q1 2026 | |||||
|
Commodore Capital LP
· Exited
Change
−7.7M
Δ Own
−100.0%
Date
Q1 2026
|
Commodore Capital LP | Exited· Q1 2026 | – | −7.7M | −100.0% | Q1 2026 | |||||
|
FMR LLC
· Added
Change
+7.3M
Δ Own
+29.4%
Date
Q1 2026
|
FMR LLC | Added· Q1 2026 | – | +7.3M | +29.4% | Q1 2026 | |||||
|
Kynam Capital Management, LP
· Added
Change
+6.0M
Date
Q1 2026
|
Kynam Capital Management, LP | Added· Q1 2026 | – | +6.0M | – | Q1 2026 | |||||
|
Venrock Adviser, LLC
· Reduced
Change
−5.6M
Date
Q1 2026
|
Venrock Adviser, LLC | Reduced· Q1 2026 | – | −5.6M | – | Q1 2026 | |||||
|
Citadel Advisors LLC
· Added
Change
+5.1M
Δ Own
+1479.4%
Date
Q1 2026
|
Citadel Advisors LLC | Added· Q1 2026 | – | +5.1M | +1479.4% | Q1 2026 | |||||
|
Nextech Invest, Ltd.
· New
Change
+4.4M
Date
Q1 2026
|
Nextech Invest, Ltd. | New· Q1 2026 | – | +4.4M | – | Q1 2026 | |||||
|
Elmind Capital, LP
· Added
Change
+3.9M
Date
Q1 2026
|
Elmind Capital, LP | Added· Q1 2026 | – | +3.9M | – | Q1 2026 | |||||
|
Financial Engines Advisors L.L.C.
· Exited
Change
−3.8M
Δ Own
−100.0%
Date
Q1 2026
|
Financial Engines Advisors L.L.C. | Exited· Q1 2026 | – | −3.8M | −100.0% | Q1 2026 | |||||
|
Wellington Management Group LLP
· New
Change
+3.6M
Date
Q1 2026
|
Wellington Management Group LLP | New· Q1 2026 | – | +3.6M | – | Q1 2026 | |||||
|
Orbimed Advisors LLC
· Exited
Change
−3.5M
Δ Own
−100.0%
Date
Q1 2026
|
Orbimed Advisors LLC | Exited· Q1 2026 | – | −3.5M | −100.0% | Q1 2026 | |||||
|
Siren, L.L.C.
· New
Change
+3.5M
Date
Q1 2026
|
Siren, L.L.C. | New· Q1 2026 | – | +3.5M | – | Q1 2026 | |||||
|
Millennium Management LLC
· Added
Change
+3.4M
Date
Q1 2026
|
Millennium Management LLC | Added· Q1 2026 | – | +3.4M | – | Q1 2026 | |||||
|
Ikarian Capital, LLC
· Exited
Change
−3.2M
Δ Own
−100.0%
Date
Q1 2026
|
Ikarian Capital, LLC | Exited· Q1 2026 | – | −3.2M | −100.0% | Q1 2026 | |||||
|
Balyasny Asset Management L.P.
· Reduced
Change
−3.1M
Date
Q1 2026
|
Balyasny Asset Management L.P. | Reduced· Q1 2026 | – | −3.1M | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Su Zhen
· Director
Grant (A)
59K
|
Su Zhen | Director | Grant (A) | – | 59K | – | 59K | – | Jun 17, 2026 | Jun 22, 2026 | |||||||||
|
Young Matthew P.
· Director
Grant (A)
59K
|
Young Matthew P. | Director | Grant (A) | – | 59K | – | 59K | – | Jun 17, 2026 | Jun 22, 2026 | |||||||||
|
Mohindru Mani
· Director
Grant (A)
59K
|
Mohindru Mani | Director | Grant (A) | – | 59K | – | 59K | – | Jun 17, 2026 | Jun 22, 2026 | |||||||||
|
Meyers James R.
· Director
Grant (A)
59K
|
Meyers James R. | Director | Grant (A) | – | 59K | – | 59K | – | Jun 17, 2026 | Jun 22, 2026 | |||||||||
|
Gilbert Halley E.
· Director
Grant (A)
59K
|
Gilbert Halley E. | Director | Grant (A) | – | 59K | – | 59K | – | Jun 17, 2026 | Jun 22, 2026 | |||||||||
|
Ashworth Alan
· Director
Grant (A)
59K
|
Ashworth Alan | Director | Grant (A) | – | 59K | – | 59K | – | Jun 17, 2026 | Jun 22, 2026 | |||||||||
|
Jones Elaine V
· Director
Grant (A)
59K
|
Jones Elaine V | Director | Grant (A) | – | 59K | – | 59K | – | Jun 17, 2026 | Jun 22, 2026 | |||||||||
|
Ogden Christopher
· CFO
Sell
−$5K
|
Ogden Christopher | CFO | Sell | $3.05 | −2K | −$5K | 295K | – | Jun 15, 2026 | Jun 17, 2026 | |||||||||
|
Chu Yu-Waye
· Officer
Sell
−$137K
|
Chu Yu-Waye | Officer | Sell | $6.42 | −21K | −$137K | 189K | – | Mar 17, 2026 | Mar 19, 2026 | |||||||||
|
McCarthy Sean A.
· Director, Officer
Sell
−$764K
|
McCarthy Sean A. | Director, Officer | Sell | $6.42 | −119K | −$764K | 1.1M | – | Mar 17, 2026 | Mar 19, 2026 | |||||||||
|
Belvin Marcia
· Officer
Sell
−$202K
|
Belvin Marcia | Officer | Sell | $6.42 | −31K | −$202K | 301K | – | Mar 17, 2026 | Mar 19, 2026 | |||||||||
|
Ogden Christopher
· Officer
Sell
−$124K
|
Ogden Christopher | Officer | Sell | $6.42 | −19K | −$124K | 297K | – | Mar 17, 2026 | Mar 19, 2026 | |||||||||
|
Lester Rachael
· Officer
3 operations
120K
|
Lester Rachael | Officer | 3 operations | – | 120K | – | 50K | – | Feb 2, 2026 | Feb 4, 2026 | |||||||||
|
Chu Yu-Waye
· Officer
2 operations
375K
|
Chu Yu-Waye | Officer | 2 operations | – | 375K | – | 300K | – | Feb 2, 2026 | Feb 4, 2026 | |||||||||
|
Belvin Marcia
· Officer
2 operations
310K
|
Belvin Marcia | Officer | 2 operations | – | 310K | – | 250K | – | Feb 2, 2026 | Feb 4, 2026 | |||||||||
177 reporting institutions disclosed CTMX position changes in the Q1 2026 snapshot.
For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.
An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.
Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.
Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.
A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.