BlackRock
· Added
Change
+10.3M
Date
Q1 2026
GP
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
BlackRock
· Added
Change
+10.3M
Date
Q1 2026
|
BlackRock | Added· Q1 2026 | – | +10.3M | – | Q1 2026 | |||||
|
Manning & Napier Advisors LLC
· Added
Change
+8.3M
Date
Q1 2026
|
Manning & Napier Advisors LLC | Added· Q1 2026 | – | +8.3M | – | Q1 2026 | |||||
|
Citadel Advisors LLC
· Added
Change
+4.5M
Δ Own
+457.1%
Date
Q1 2026
|
Citadel Advisors LLC | Added· Q1 2026 | – | +4.5M | +457.1% | Q1 2026 | |||||
|
Millennium Management LLC
· Added
Change
+3.8M
Date
Q1 2026
|
Millennium Management LLC | Added· Q1 2026 | – | +3.8M | – | Q1 2026 | |||||
|
Qube Research & Technologies Ltd
· Added
Change
+3.6M
Date
Q1 2026
|
Qube Research & Technologies Ltd | Added· Q1 2026 | – | +3.6M | – | Q1 2026 | |||||
|
D. E. Shaw & Co., Inc.
· Added
Change
+2.4M
Δ Own
+320.1%
Date
Q1 2026
|
D. E. Shaw & Co., Inc. | Added· Q1 2026 | – | +2.4M | +320.1% | Q1 2026 | |||||
|
Openarc Corporate Advisory, LLC
· Added
Change
+2.3M
Date
Q1 2026
|
Openarc Corporate Advisory, LLC | Added· Q1 2026 | – | +2.3M | – | Q1 2026 | |||||
|
Two Sigma Investments, LP
· Added
Change
+2.0M
Δ Own
+247.5%
Date
Q1 2026
|
Two Sigma Investments, LP | Added· Q1 2026 | – | +2.0M | +247.5% | Q1 2026 | |||||
|
Morgan Stanley
· Added
Change
+1.9M
Date
Q1 2026
|
Morgan Stanley | Added· Q1 2026 | – | +1.9M | – | Q1 2026 | |||||
|
Fuller & Thaler Asset Management, Inc.
· Added
Change
+1.6M
Date
Q1 2026
|
Fuller & Thaler Asset Management, Inc. | Added· Q1 2026 | – | +1.6M | – | Q1 2026 | |||||
|
Tudor Investment Corp Et Al
· New
Change
+1.6M
Date
Q1 2026
|
Tudor Investment Corp Et Al | New· Q1 2026 | – | +1.6M | – | Q1 2026 | |||||
|
Algert Global LLC
· New
Change
+1.6M
Date
Q1 2026
|
Algert Global LLC | New· Q1 2026 | – | +1.6M | – | Q1 2026 | |||||
|
Boston Partners
· New
Change
+1.5M
Date
Q1 2026
|
Boston Partners | New· Q1 2026 | – | +1.5M | – | Q1 2026 | |||||
|
Private Management Group Inc
· New
Change
+1.3M
Date
Q1 2026
|
Private Management Group Inc | New· Q1 2026 | – | +1.3M | – | Q1 2026 | |||||
|
Thompson Siegel & Walmsley LLC
· Added
Change
+1.3M
Date
Q1 2026
|
Thompson Siegel & Walmsley LLC | Added· Q1 2026 | – | +1.3M | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Fishbein Daniel S.
· Officer
2 operations
229K
|
Fishbein Daniel S. | Officer | 2 operations | – | 229K | – | 189K | – | Jul 1, 2026 | Jul 2, 2026 | |||||||||
|
Venturelli Larry M.
· Director
Grant (A)
16K
|
Venturelli Larry M. | Director | Grant (A) | – | 16K | – | 131K | – | May 20, 2026 | May 21, 2026 | |||||||||
|
Brlas Laurie
· Director
Grant (A)
16K
|
Brlas Laurie | Director | Grant (A) | – | 16K | – | 36K | – | May 20, 2026 | May 21, 2026 | |||||||||
|
Callahan Andrew P.
· Director
Grant (A)
16K
|
Callahan Andrew P. | Director | Grant (A) | – | 16K | – | 23K | – | May 20, 2026 | May 21, 2026 | |||||||||
|
Martens Philip R.
· Director
Grant (A)
16K
|
Martens Philip R. | Director | Grant (A) | – | 16K | – | 43K | – | May 20, 2026 | May 21, 2026 | |||||||||
|
Maselli Alessandro
· Director
Grant (A)
16K
|
Maselli Alessandro | Director | Grant (A) | – | 16K | – | 23K | – | May 20, 2026 | May 21, 2026 | |||||||||
|
Stafeil Jeffrey
· Director
Buy
+16K
|
Stafeil Jeffrey | Director | Buy | – | +16K | – | 34K | – | May 20, 2026 | May 21, 2026 | |||||||||
|
Hagemann Robert
· Director
Buy
+$154K
|
Hagemann Robert | Director | Buy | $11.00 | +14K | +$154K | 98K | – | May 8, 2026 | May 11, 2026 | |||||||||
|
Stafeil Jeffrey
· Director
Buy
+$200K
|
Stafeil Jeffrey | Director | Buy | $11.19 | +18K | +$200K | 18K | – | May 7, 2026 | May 11, 2026 | |||||||||
|
Fallan Scott
· Officer
2 operations
0
|
Fallan Scott | Officer | 2 operations | – | 0 | – | 3K | – | Apr 1, 2026 | Apr 2, 2026 | |||||||||
|
Fallan Scott
· Officer
Tax withholding or exercise payment (F)
-$6K
|
Fallan Scott | Officer | Tax withholding or exercise payment (F) | $9.59 | -592 | -$6K | 985 | – | Apr 1, 2026 | Apr 2, 2026 | |||||||||
|
Venturelli Larry M.
· Director
4 operations
+$199K
|
Venturelli Larry M. | Director | 4 operations | $11.36–$11.37 | +18K | +$199K | 114K | – | Mar 4, 2026 | Mar 5, 2026 | |||||||||
|
Rietbroek Robbert
· Director, Officer
Buy
+$501K
|
Rietbroek Robbert | Director, Officer | Buy | $11.32 | +44K | +$501K | 44K | – | Mar 4, 2026 | Mar 4, 2026 | |||||||||
|
Yost Joseph P.
· Officer
2 operations
0
|
Yost Joseph P. | Officer | 2 operations | – | 0 | – | 11K | – | Feb 26, 2026 | Mar 2, 2026 | |||||||||
|
Yost Joseph P.
· Officer
Tax withholding or exercise payment (F)
-$25K
|
Yost Joseph P. | Officer | Tax withholding or exercise payment (F) | $12.10 | -2K | -$25K | 280K | – | Feb 26, 2026 | Mar 2, 2026 | |||||||||
N
M
A
M
G
A
455 reporting institutions disclosed GPK 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.