Rubric Capital Management LP
· Reduced
Change
−637K
Date
Q1 2026
PR
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Rubric Capital Management LP
· Reduced
Change
−637K
Date
Q1 2026
|
Rubric Capital Management LP | Reduced· Q1 2026 | – | −637K | – | Q1 2026 | |||||
|
Disciplined Growth Investors Inc
· Reduced
Change
−176K
Date
Q1 2026
|
Disciplined Growth Investors Inc | Reduced· Q1 2026 | – | −176K | – | Q1 2026 | |||||
|
Empowered Funds, LLC
· Exited
Change
−113K
Δ Own
−100.0%
Date
Q1 2026
|
Empowered Funds, LLC | Exited· Q1 2026 | – | −113K | −100.0% | Q1 2026 | |||||
|
Bridgeway Capital Management, LLC
· Reduced
Change
−92K
Date
Q1 2026
|
Bridgeway Capital Management, LLC | Reduced· Q1 2026 | – | −92K | – | Q1 2026 | |||||
|
Millennium Management LLC
· Reduced
Change
−76K
Date
Q1 2026
|
Millennium Management LLC | Reduced· Q1 2026 | – | −76K | – | Q1 2026 | |||||
|
Jane Street Group, LLC
· Reduced
Change
−53K
Date
Q1 2026
|
Jane Street Group, LLC | Reduced· Q1 2026 | – | −53K | – | Q1 2026 | |||||
|
Cwa Asset Management Group, LLC
· Exited
Change
−42K
Δ Own
−100.0%
Date
Q1 2026
|
Cwa Asset Management Group, LLC | Exited· Q1 2026 | – | −42K | −100.0% | Q1 2026 | |||||
|
Barclays PLC
· Reduced
Change
−33K
Date
Q1 2026
|
Barclays PLC | Reduced· Q1 2026 | – | −33K | – | Q1 2026 | |||||
|
JPMorgan Chase & Co
· Reduced
Change
−31K
Date
Q1 2026
|
JPMorgan Chase & Co | Reduced· Q1 2026 | – | −31K | – | Q1 2026 | |||||
|
Campbell & Co Investment Adviser LLC
· Reduced
Change
−26K
Date
Q1 2026
|
Campbell & Co Investment Adviser LLC | Reduced· Q1 2026 | – | −26K | – | Q1 2026 | |||||
|
SG Americas Securities, LLC
· Reduced
Change
−24K
Date
Q1 2026
|
SG Americas Securities, LLC | Reduced· Q1 2026 | – | −24K | – | Q1 2026 | |||||
|
Polar Asset Management Partners Inc.
· Reduced
Change
−23K
Date
Q1 2026
|
Polar Asset Management Partners Inc. | Reduced· Q1 2026 | – | −23K | – | Q1 2026 | |||||
|
Goldman Sachs Group Inc
· Reduced
Change
−20K
Date
Q1 2026
|
Goldman Sachs Group Inc | Reduced· Q1 2026 | – | −20K | – | Q1 2026 | |||||
|
Invesco Ltd.
· Reduced
Change
−19K
Δ Own
−17.8%
Date
Q1 2026
|
Invesco Ltd. | Reduced· Q1 2026 | – | −19K | −17.8% | Q1 2026 | |||||
|
Wells Fargo & Company
· Reduced
Change
−18K
Date
Q1 2026
|
Wells Fargo & Company | Reduced· Q1 2026 | – | −18K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Wehrwein Sven
· Director
2 operations
−$155K
|
Wehrwein Sven | Director | 2 operations | $76.91–$78.38 | −2K | −$155K | 33K | – | Jun 2, 2026 | Jun 4, 2026 | |||||||||
|
Krishna Suresh
· Director
Tax withholding or exercise payment (F)
-$89K
|
Krishna Suresh | Director | Tax withholding or exercise payment (F) | $71.36 | -1K | -$89K | 30K | – | May 23, 2026 | May 27, 2026 | |||||||||
|
Schumacher Daniel
· CFO
Tax withholding or exercise payment (F)
-$18K
|
Schumacher Daniel | CFO | Tax withholding or exercise payment (F) | $71.13 | -255 | -$18K | 45K | – | May 20, 2026 | May 22, 2026 | |||||||||
|
Parlange Bernardo
· Officer
2 operations
6K
|
Parlange Bernardo | Officer | 2 operations | – | 6K | – | 4K | – | May 20, 2026 | May 22, 2026 | |||||||||
|
Black Archie C.
· Director
Grant (A)
2K
|
Black Archie C. | Director | Grant (A) | – | 2K | – | 28K | – | May 19, 2026 | May 21, 2026 | |||||||||
|
Chand Sujeet
· Director
Grant (A)
2K
|
Chand Sujeet | Director | Grant (A) | – | 2K | – | 27K | – | May 19, 2026 | May 21, 2026 | |||||||||
|
Chin Moonhie
· Director
Grant (A)
2K
|
Chin Moonhie | Director | Grant (A) | – | 2K | – | 22K | – | May 19, 2026 | May 21, 2026 | |||||||||
|
Gawlick Rainer
· Director
Grant (A)
2K
|
Gawlick Rainer | Director | Grant (A) | – | 2K | – | 46K | – | May 19, 2026 | May 21, 2026 | |||||||||
|
Wehrwein Sven
· Director
Grant (A)
2K
|
Wehrwein Sven | Director | Grant (A) | – | 2K | – | 35K | – | May 19, 2026 | May 21, 2026 | |||||||||
|
Krantz Donald G.
· Director
Grant (A)
2K
|
Krantz Donald G. | Director | Grant (A) | – | 2K | – | 27K | – | May 19, 2026 | May 21, 2026 | |||||||||
|
Kenison Michael R.
· Officer
4 operations
−$1.1M
|
Kenison Michael R. | Officer | 4 operations | $67.58–$70.30 | −16K | −$1.1M | 19K | – | May 12, 2026 | May 13, 2026 | |||||||||
|
Kenison Michael R.
· Officer
6 operations
0
|
Kenison Michael R. | Officer | 6 operations | $33.84–$59.40 | 0 | – | 0 | – | May 12, 2026 | May 13, 2026 | |||||||||
|
Kenison Michael R.
· Officer
Sell
−$522K
|
Kenison Michael R. | Officer | Sell | $70.26 | −7K | −$522K | 27K | – | May 11, 2026 | May 13, 2026 | |||||||||
|
Kenison Michael R.
· Officer
4 operations
0
|
Kenison Michael R. | Officer | 4 operations | $33.52–$33.84 | 0 | – | 4K | – | May 11, 2026 | May 13, 2026 | |||||||||
|
Kenison Michael R.
· Officer
Sell
−$14K
|
Kenison Michael R. | Officer | Sell | $70.00 | −200 | −$14K | 27K | – | May 7, 2026 | May 8, 2026 | |||||||||
N
A
M
A
M
G
218 reporting institutions disclosed PRLB 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.