Column Group LLC
· Added
Change
+66K
Date
Q1 2026
SR
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Column Group LLC
· Added
Change
+66K
Date
Q1 2026
|
Column Group LLC | Added· Q1 2026 | – | +66K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Tcg Crossover Gp Ii, LLC
· 10% Owner
2 operations
−$6.9M
|
Tcg Crossover Gp Ii, LLC | 10% Owner | 2 operations | $21.25 | −325K | −$6.9M | 574K | – | Jul 22, 2026 | Jul 24, 2026 | |||||||||
|
Maleki Andrew Pedrum
· CFO
Grant (A)
$12K
|
Maleki Andrew Pedrum | CFO | Grant (A) | $19.01 | 607 | $12K | 607 | – | Jun 15, 2026 | Jun 16, 2026 | |||||||||
|
Li Yang
· Officer
Grant (A)
$14K
|
Li Yang | Officer | Grant (A) | $8.11 | 2K | $14K | 19K | – | Jun 15, 2026 | Jun 16, 2026 | |||||||||
|
Williams Charles O.
· Officer
Grant (A)
$14K
|
Williams Charles O. | Officer | Grant (A) | $8.11 | 2K | $14K | 18K | – | Jun 15, 2026 | Jun 16, 2026 | |||||||||
|
Parker Craig C.
· Director
Grant (A)
$13K
|
Parker Craig C. | Director | Grant (A) | $8.11 | 2K | $13K | 18K | – | Jun 15, 2026 | Jun 16, 2026 | |||||||||
|
Kutzkey Tim
· Director
Grant (A)
6K
|
Kutzkey Tim | Director | Grant (A) | – | 6K | – | 6K | – | May 13, 2026 | May 19, 2026 | |||||||||
|
Rothenberg Mace
· Director
Grant (A)
6K
|
Rothenberg Mace | Director | Grant (A) | – | 6K | – | 6K | – | May 13, 2026 | May 14, 2026 | |||||||||
|
Woodhouse David J.
· Director
Grant (A)
6K
|
Woodhouse David J. | Director | Grant (A) | – | 6K | – | 6K | – | May 13, 2026 | May 14, 2026 | |||||||||
|
Haak-Frendscho Mary
· Director
Grant (A)
6K
|
Haak-Frendscho Mary | Director | Grant (A) | – | 6K | – | 6K | – | May 13, 2026 | May 14, 2026 | |||||||||
|
Chai Christopher Y.
· Director
Grant (A)
6K
|
Chai Christopher Y. | Director | Grant (A) | – | 6K | – | 6K | – | May 13, 2026 | May 14, 2026 | |||||||||
|
Bjerkholt Eric
· Director
Grant (A)
6K
|
Bjerkholt Eric | Director | Grant (A) | – | 6K | – | 6K | – | May 13, 2026 | May 14, 2026 | |||||||||
|
Berkenblit Anna
· Director
Grant (A)
6K
|
Berkenblit Anna | Director | Grant (A) | – | 6K | – | 6K | – | May 13, 2026 | May 14, 2026 | |||||||||
|
Li Yang
· Officer
Sell
−$53K
|
Li Yang | Officer | Sell | $33.33 | −2K | −$53K | 17K | – | May 4, 2026 | May 5, 2026 | |||||||||
|
Williams Charles O.
· Officer
Sell
−$68K
|
Williams Charles O. | Officer | Sell | $33.33 | −2K | −$68K | 17K | – | May 4, 2026 | May 5, 2026 | |||||||||
|
Parker Craig C.
· Director
Sell
−$151K
|
Parker Craig C. | Director | Sell | $33.33 | −5K | −$151K | 17K | – | May 4, 2026 | May 5, 2026 | |||||||||
1 reporting institutions disclosed SRZN 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.