Driehaus Capital Management LLC
· New
Change
+1.3M
Date
Q1 2026
OI
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Driehaus Capital Management LLC
· New
Change
+1.3M
Date
Q1 2026
|
Driehaus Capital Management LLC | New· Q1 2026 | – | +1.3M | – | Q1 2026 | |||||
|
Gendell Jeffrey L
· Reduced
Change
−1.3M
Date
Q1 2026
|
Gendell Jeffrey L | Reduced· Q1 2026 | – | −1.3M | – | Q1 2026 | |||||
|
Marshall Wace, LLP
· New
Change
+933K
Date
Q1 2026
|
Marshall Wace, LLP | New· Q1 2026 | – | +933K | – | Q1 2026 | |||||
|
Hotchkis & Wiley Capital Management LLC
· Reduced
Change
−703K
Date
Q1 2026
|
Hotchkis & Wiley Capital Management LLC | Reduced· Q1 2026 | – | −703K | – | Q1 2026 | |||||
|
Millennium Management LLC
· Added
Change
+692K
Date
Q1 2026
|
Millennium Management LLC | Added· Q1 2026 | – | +692K | – | Q1 2026 | |||||
|
First Eagle Investment Management, LLC
· Reduced
Change
−538K
Δ Own
−20.8%
Date
Q1 2026
|
First Eagle Investment Management, LLC | Reduced· Q1 2026 | – | −538K | −20.8% | Q1 2026 | |||||
|
D. E. Shaw & Co., Inc.
· Reduced
Change
−482K
Δ Own
−18.2%
Date
Q1 2026
|
D. E. Shaw & Co., Inc. | Reduced· Q1 2026 | – | −482K | −18.2% | Q1 2026 | |||||
|
Two Sigma Investments, LP
· Added
Change
+476K
Δ Own
+79.6%
Date
Q1 2026
|
Two Sigma Investments, LP | Added· Q1 2026 | – | +476K | +79.6% | Q1 2026 | |||||
|
Kennedy Capital Management LLC
· Reduced
Change
−374K
Date
Q1 2026
|
Kennedy Capital Management LLC | Reduced· Q1 2026 | – | −374K | – | Q1 2026 | |||||
|
Morgan Stanley
· Added
Change
+368K
Date
Q1 2026
|
Morgan Stanley | Added· Q1 2026 | – | +368K | – | Q1 2026 | |||||
|
BlackRock
· Reduced
Change
−348K
Date
Q1 2026
|
BlackRock | Reduced· Q1 2026 | – | −348K | – | Q1 2026 | |||||
|
UBS Group AG
· Added
Change
+344K
Date
Q1 2026
|
UBS Group AG | Added· Q1 2026 | – | +344K | – | Q1 2026 | |||||
|
Jane Street Group, LLC
· Added
Change
+309K
Date
Q1 2026
|
Jane Street Group, LLC | Added· Q1 2026 | – | +309K | – | Q1 2026 | |||||
|
Arrowstreet Capital, Limited Partnership
· Added
Change
+296K
Date
Q1 2026
|
Arrowstreet Capital, Limited Partnership | Added· Q1 2026 | – | +296K | – | Q1 2026 | |||||
|
Thomist Capital Management, LP
· Exited
Change
−288K
Δ Own
−100.0%
Date
Q1 2026
|
Thomist Capital Management, LP | Exited· Q1 2026 | – | −288K | −100.0% | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Potter Robert L.
· Director
Grant (A)
$13K
|
Potter Robert L. | Director | Grant (A) | $8.01 | 2K | $13K | 227K | +0.7% | Jun 30, 2026 | Jul 1, 2026 | |||||||||
|
Wright E. Joseph
· Director
Grant (A)
17K
|
Wright E. Joseph | Director | Grant (A) | – | 17K | – | 163K | – | May 12, 2026 | May 13, 2026 | |||||||||
|
Vanderhider Hallie A.
· Director
Grant (A)
17K
|
Vanderhider Hallie A. | Director | Grant (A) | – | 17K | – | 161K | – | May 12, 2026 | May 13, 2026 | |||||||||
|
Potter Robert L.
· Director
Grant (A)
17K
|
Potter Robert L. | Director | Grant (A) | – | 17K | – | 225K | – | May 12, 2026 | May 13, 2026 | |||||||||
|
Hollek Darrell E.
· Director
Grant (A)
17K
|
Hollek Darrell E. | Director | Grant (A) | – | 17K | – | 121K | – | May 12, 2026 | May 13, 2026 | |||||||||
|
Dickerson Lawrence R.
· Director
Grant (A)
17K
|
Dickerson Lawrence R. | Director | Grant (A) | – | 17K | – | 176K | – | May 12, 2026 | May 13, 2026 | |||||||||
|
Castillo-Rhodes Denise
· Director
Grant (A)
17K
|
Castillo-Rhodes Denise | Director | Grant (A) | – | 17K | – | 141K | – | May 12, 2026 | May 13, 2026 | |||||||||
|
Autenrieth Matthew Earl
· Officer
Grant (A)
36K
|
Autenrieth Matthew Earl | Officer | Grant (A) | – | 36K | – | 59K | – | May 1, 2026 | May 4, 2026 | |||||||||
|
Moses Philip Scott
· Officer
Grant (A)
13K
|
Moses Philip Scott | Officer | Grant (A) | – | 13K | – | 737K | – | May 1, 2026 | May 4, 2026 | |||||||||
|
Hajdik Lloyd A.
· Director
Grant (A)
67K
|
Hajdik Lloyd A. | Director | Grant (A) | – | 67K | – | 737K | – | May 1, 2026 | May 4, 2026 | |||||||||
|
Potter Robert L.
· Director
Grant (A)
$13K
|
Potter Robert L. | Director | Grant (A) | $11.64 | 1K | $13K | 208K | – | Mar 31, 2026 | Apr 1, 2026 | |||||||||
|
Hollek Darrell E.
· Director
Sell
−$494K
|
Hollek Darrell E. | Director | Sell | $11.61 | −43K | −$494K | 104K | – | Mar 31, 2026 | Apr 1, 2026 | |||||||||
|
Taylor Brian E.
· Officer
Tax withholding or exercise payment (F)
-$124K
|
Taylor Brian E. | Officer | Tax withholding or exercise payment (F) | $12.53 | -10K | -$124K | 213K | – | Feb 20, 2026 | Feb 23, 2026 | |||||||||
|
Moses Philip Scott
· Officer
Tax withholding or exercise payment (F)
-$191K
|
Moses Philip Scott | Officer | Tax withholding or exercise payment (F) | $12.53 | -15K | -$191K | 724K | – | Feb 20, 2026 | Feb 23, 2026 | |||||||||
|
Hajdik Lloyd A.
· Officer
Tax withholding or exercise payment (F)
-$206K
|
Hajdik Lloyd A. | Officer | Tax withholding or exercise payment (F) | $12.53 | -16K | -$206K | 671K | – | Feb 20, 2026 | Feb 23, 2026 | |||||||||
N
A
M
G
A
A
201 reporting institutions disclosed OIS 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.