Casdin Capital, LLC
· Reduced
Change
−3.5M
Date
Q1 2026
PA
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Casdin Capital, LLC
· Reduced
Change
−3.5M
Date
Q1 2026
|
Casdin Capital, LLC | Reduced· Q1 2026 | – | −3.5M | – | Q1 2026 | |||||
|
Amiral Gestion
· Exited
Change
−2.7M
Δ Own
−100.0%
Date
Q1 2026
|
Amiral Gestion | Exited· Q1 2026 | – | −2.7M | −100.0% | Q1 2026 | |||||
|
Point72 Asset Management, L.P.
· Reduced
Change
−2.7M
Δ Own
−90.3%
Date
Q1 2026
|
Point72 Asset Management, L.P. | Reduced· Q1 2026 | – | −2.7M | −90.3% | Q1 2026 | |||||
|
Koss-Olinger Consulting, LLC
· Exited
Change
−2.6M
Δ Own
−100.0%
Date
Q1 2026
|
Koss-Olinger Consulting, LLC | Exited· Q1 2026 | – | −2.6M | −100.0% | Q1 2026 | |||||
|
Nuveen, LLC
· Added
Change
+2.1M
Date
Q1 2026
|
Nuveen, LLC | Added· Q1 2026 | – | +2.1M | – | Q1 2026 | |||||
|
BlackRock
· Added
Change
+1.9M
Date
Q1 2026
|
BlackRock | Added· Q1 2026 | – | +1.9M | – | Q1 2026 | |||||
|
Citadel Advisors LLC
· Reduced
Change
−1.6M
Δ Own
−50.2%
Date
Q1 2026
|
Citadel Advisors LLC | Reduced· Q1 2026 | – | −1.6M | −50.2% | Q1 2026 | |||||
|
UBS Group AG
· Reduced
Change
−1.5M
Date
Q1 2026
|
UBS Group AG | Reduced· Q1 2026 | – | −1.5M | – | Q1 2026 | |||||
|
Renaissance Technologies LLC
· Reduced
Change
−1.4M
Δ Own
−35.4%
Date
Q1 2026
|
Renaissance Technologies LLC | Reduced· Q1 2026 | – | −1.4M | −35.4% | Q1 2026 | |||||
|
Qube Research & Technologies Ltd
· New
Change
+1.2M
Date
Q1 2026
|
Qube Research & Technologies Ltd | New· Q1 2026 | – | +1.2M | – | Q1 2026 | |||||
|
Birchview Capital, LP
· Added
Change
+1.0M
Date
Q1 2026
|
Birchview Capital, LP | Added· Q1 2026 | – | +1.0M | – | Q1 2026 | |||||
|
Ark Investment Management LLC
· Reduced
Change
−991K
Δ Own
−2.7%
Date
Q1 2026
|
Ark Investment Management LLC | Reduced· Q1 2026 | – | −991K | −2.7% | Q1 2026 | |||||
|
Susquehanna International Group, LLP
· Reduced
Change
−892K
Date
Q1 2026
|
Susquehanna International Group, LLP | Reduced· Q1 2026 | – | −892K | – | Q1 2026 | |||||
|
Two Sigma Advisers, LP
· Exited
Change
−828K
Δ Own
−100.0%
Date
Q1 2026
|
Two Sigma Advisers, LP | Exited· Q1 2026 | – | −828K | −100.0% | Q1 2026 | |||||
|
D. E. Shaw & Co., Inc.
· Reduced
Change
−801K
Δ Own
−18.0%
Date
Q1 2026
|
D. E. Shaw & Co., Inc. | Reduced· Q1 2026 | – | −801K | −18.0% | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Mohr Marshall
· Director
Grant (A)
223K
|
Mohr Marshall | Director | Grant (A) | – | 223K | – | 223K | – | Jun 3, 2026 | Jun 4, 2026 | |||||||||
|
Gibson Christopher
· Director
Grant (A)
74K
|
Gibson Christopher | Director | Grant (A) | – | 74K | – | 74K | – | Jun 3, 2026 | Jun 4, 2026 | |||||||||
|
Smith Christopher M.
· Director
Grant (A)
223K
|
Smith Christopher M. | Director | Grant (A) | – | 223K | – | 223K | – | Jun 3, 2026 | Jun 4, 2026 | |||||||||
|
Valantine Hannah
· Director
Grant (A)
223K
|
Valantine Hannah | Director | Grant (A) | – | 223K | – | 223K | – | Jun 3, 2026 | Jun 4, 2026 | |||||||||
|
Livingston Randall S.
· Director
Grant (A)
223K
|
Livingston Randall S. | Director | Grant (A) | – | 223K | – | 223K | – | Jun 3, 2026 | Jun 4, 2026 | |||||||||
|
Ericson William W.
· Director
Grant (A)
223K
|
Ericson William W. | Director | Grant (A) | – | 223K | – | 223K | – | Jun 3, 2026 | Jun 4, 2026 | |||||||||
|
Milligan John F.
· Director
Grant (A)
223K
|
Milligan John F. | Director | Grant (A) | – | 223K | – | 223K | – | Jun 3, 2026 | Jun 4, 2026 | |||||||||
|
Ordonez Kathy
· Director
Grant (A)
223K
|
Ordonez Kathy | Director | Grant (A) | – | 223K | – | 223K | – | Jun 3, 2026 | Jun 4, 2026 | |||||||||
|
Gibson Christopher
· Director
2 operations
135K
|
Gibson Christopher | Director | 2 operations | – | 135K | – | 78K | – | Apr 8, 2026 | Apr 10, 2026 | |||||||||
|
Gibson James R. II
· Officer
Sell
−$121K
|
Gibson James R. II | Officer | Sell | $1.37 | −88K | −$121K | 1.2M | – | Apr 1, 2026 | Apr 3, 2026 | |||||||||
|
Gibson Christopher
· Director
2 operations
127K
|
Gibson Christopher | Director | 2 operations | – | 127K | – | 73K | – | Mar 3, 2026 | Mar 5, 2026 | |||||||||
|
Henry Christian O.
· Officer
Sell
−$19K
|
Henry Christian O. | Officer | Sell | $1.51 | −12K | −$19K | 3.6M | – | Mar 3, 2026 | Mar 4, 2026 | |||||||||
|
Van Oene Mark
· Officer
Sell
−$10K
|
Van Oene Mark | Officer | Sell | $1.51 | −7K | −$10K | 2.2M | – | Mar 3, 2026 | Mar 4, 2026 | |||||||||
|
Farmer Michele
· Officer
Sell
−$4K
|
Farmer Michele | Officer | Sell | $1.51 | −3K | −$4K | 306K | – | Mar 3, 2026 | Mar 4, 2026 | |||||||||
|
Farmer Michele
· Officer
2 operations
270K
|
Farmer Michele | Officer | 2 operations | – | 270K | – | 180K | – | Feb 27, 2026 | Mar 3, 2026 | |||||||||
N
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206 reporting institutions disclosed PACB 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.