Arrowstreet Capital, Limited Partnership
· Added
+$149M
Change
+5.6M
Date
Q1 2026
MG
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Arrowstreet Capital, Limited Partnership
· Added
+$149M
Change
+5.6M
Date
Q1 2026
|
Arrowstreet Capital, Limited Partnership | Added· Q1 2026 | +$149M | +5.6M | – | Q1 2026 | |||||
|
Wellington Management Group LLP
· Exited
−$139M
Change
−5.2M
Δ Own
−100.0%
Date
Q1 2026
|
Wellington Management Group LLP | Exited· Q1 2026 | −$139M | −5.2M | −100.0% | Q1 2026 | |||||
|
Vanguard
· Added
+$53M
Change
+2.0M
Date
Q1 2026
|
Vanguard | Added· Q1 2026 | +$53M | +2.0M | – | Q1 2026 | |||||
|
BlackRock
· Added
+$49M
Change
+1.8M
Date
Q1 2026
|
BlackRock | Added· Q1 2026 | +$49M | +1.8M | – | Q1 2026 | |||||
|
Hite Hedge Asset Management LLC
· Exited
−$39M
Change
−1.5M
Δ Own
−100.0%
Date
Q1 2026
|
Hite Hedge Asset Management LLC | Exited· Q1 2026 | −$39M | −1.5M | −100.0% | Q1 2026 | |||||
|
Two Sigma Investments, LP
· Added
+$34M
Change
+1.3M
Δ Own
+297.6%
Date
Q1 2026
|
Two Sigma Investments, LP | Added· Q1 2026 | +$34M | +1.3M | +297.6% | Q1 2026 | |||||
|
T. Rowe Price Investment Management, Inc.
· Added
+$32M
Change
+1.2M
Date
Q1 2026
|
T. Rowe Price Investment Management, Inc. | Added· Q1 2026 | +$32M | +1.2M | – | Q1 2026 | |||||
|
Epoch Investment Partners, Inc.
· Reduced
−$28M
Change
−1.1M
Date
Q1 2026
|
Epoch Investment Partners, Inc. | Reduced· Q1 2026 | −$28M | −1.1M | – | Q1 2026 | |||||
|
Fred Alger Management, LLC
· Added
+$27M
Change
+1.0M
Date
Q1 2026
|
Fred Alger Management, LLC | Added· Q1 2026 | +$27M | +1.0M | – | Q1 2026 | |||||
|
Boston Trust Walden Corp
· Reduced
−$25M
Change
−940K
Date
Q1 2026
|
Boston Trust Walden Corp | Reduced· Q1 2026 | −$25M | −940K | – | Q1 2026 | |||||
|
Goldman Sachs Group Inc
· Added
+$24M
Change
+906K
Date
Q1 2026
|
Goldman Sachs Group Inc | Added· Q1 2026 | +$24M | +906K | – | Q1 2026 | |||||
|
Balyasny Asset Management L.P.
· Reduced
−$20M
Change
−743K
Date
Q1 2026
|
Balyasny Asset Management L.P. | Reduced· Q1 2026 | −$20M | −743K | – | Q1 2026 | |||||
|
Td Asset Management Inc
· Reduced
−$20M
Change
−730K
Date
Q1 2026
|
Td Asset Management Inc | Reduced· Q1 2026 | −$20M | −730K | – | Q1 2026 | |||||
|
State Street
· Added
+$19M
Change
+695K
Date
Q1 2026
|
State Street | Added· Q1 2026 | +$19M | +695K | – | Q1 2026 | |||||
|
Silvercrest Asset Management Group LLC
· Reduced
−$18M
Change
−666K
Date
Q1 2026
|
Silvercrest Asset Management Group LLC | Reduced· Q1 2026 | −$18M | −666K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Acosta Arcilia
· Director
Grant (A)
72
|
Acosta Arcilia | Director | Grant (A) | – | 72 | – | 135K | – | Jun 1, 2026 | Jun 3, 2026 | |||||||||
|
Szabo Shandell
· Director
Buy
+$2K
|
Szabo Shandell | Director | Buy | $27.44 | +86 | +$2K | 21K | – | Jun 1, 2026 | Jun 3, 2026 | |||||||||
|
Acosta Arcilia
· Director
Grant (A)
6K
|
Acosta Arcilia | Director | Grant (A) | – | 6K | – | 135K | – | May 8, 2026 | May 12, 2026 | |||||||||
|
Djerejian Edward P.
· Director
Grant (A)
6K
|
Djerejian Edward P. | Director | Grant (A) | – | 6K | – | 117K | – | May 8, 2026 | May 12, 2026 | |||||||||
|
Ropp Ralph Lewis
· Director
Grant (A)
6K
|
Ropp Ralph Lewis | Director | Grant (A) | – | 6K | – | 21K | – | May 8, 2026 | May 12, 2026 | |||||||||
|
Smith Dan F.
· Director
Grant (A)
8K
|
Smith Dan F. | Director | Grant (A) | – | 8K | – | 127K | – | May 8, 2026 | May 12, 2026 | |||||||||
|
Khani David M.
· Director
Grant (A)
6K
|
Khani David M. | Director | Grant (A) | – | 6K | – | 23K | – | May 8, 2026 | May 12, 2026 | |||||||||
|
Szabo Shandell
· Director
Grant (A)
6K
|
Szabo Shandell | Director | Grant (A) | – | 6K | – | 21K | – | May 8, 2026 | May 12, 2026 | |||||||||
|
Larson James R.
· Director
Grant (A)
6K
|
Larson James R. | Director | Grant (A) | – | 6K | – | 97K | – | May 8, 2026 | May 12, 2026 | |||||||||
|
Szabo Shandell
· Director
Sell
−$375K
|
Szabo Shandell | Director | Sell | $31.98 | −12K | −$375K | 14K | – | Mar 30, 2026 | Mar 31, 2026 | |||||||||
|
Djerejian Edward P.
· Director
Sell
−$522K
|
Djerejian Edward P. | Director | Sell | $28.98 | −18K | −$522K | 110K | – | Mar 10, 2026 | Mar 11, 2026 | |||||||||
|
Acosta Arcilia
· Director
Sell
−$560K
|
Acosta Arcilia | Director | Sell | $29.10 | −19K | −$560K | 128K | – | Mar 9, 2026 | Mar 11, 2026 | |||||||||
|
Smith Dan F.
· Director
Sell
−$522K
|
Smith Dan F. | Director | Sell | $29.01 | −18K | −$522K | 119K | – | Mar 9, 2026 | Mar 11, 2026 | |||||||||
|
Corales Brian
· Officer
Sell
−$961K
|
Corales Brian | Officer | Sell | $29.12 | −33K | −$961K | 184K | – | Mar 9, 2026 | Mar 11, 2026 | |||||||||
|
Yang Timothy D.
· Officer
Sell
−$4.4M
|
Yang Timothy D. | Officer | Sell | $29.29 | −150K | −$4.4M | 527K | – | Mar 9, 2026 | Mar 11, 2026 | |||||||||
N
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387 reporting institutions disclosed MGY 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.