MT
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Norges
· Exited
Change
−3.3M
Δ Own
−100.0%
Date
Q1 2026
|
Norges | Exited· Q1 2026 | – | −3.3M | −100.0% | Q1 2026 | |||||
|
American Century Companies Inc
· Added
Change
+1.4M
Date
Q1 2026
|
American Century Companies Inc | Added· Q1 2026 | – | +1.4M | – | Q1 2026 | |||||
|
Qube Research & Technologies Ltd
· Exited
Change
−1.3M
Δ Own
−100.0%
Date
Q1 2026
|
Qube Research & Technologies Ltd | Exited· Q1 2026 | – | −1.3M | −100.0% | Q1 2026 | |||||
|
Clearbridge Investments, LLC
· Reduced
Change
−1.0M
Date
Q1 2026
|
Clearbridge Investments, LLC | Reduced· Q1 2026 | – | −1.0M | – | Q1 2026 | |||||
|
Jane Street Group, LLC
· Reduced
Change
−927K
Date
Q1 2026
|
Jane Street Group, LLC | Reduced· Q1 2026 | – | −927K | – | Q1 2026 | |||||
|
Geode
· Reduced
Change
−853K
Date
Q1 2026
|
Geode | Reduced· Q1 2026 | – | −853K | – | Q1 2026 | |||||
|
Wealth Enhancement Advisory Services, LLC
· Reduced
Change
−671K
Date
Q1 2026
|
Wealth Enhancement Advisory Services, LLC | Reduced· Q1 2026 | – | −671K | – | Q1 2026 | |||||
|
AQR Capital Management LLC
· Reduced
Change
−628K
Date
Q1 2026
|
AQR Capital Management LLC | Reduced· Q1 2026 | – | −628K | – | Q1 2026 | |||||
|
D. E. Shaw & Co., Inc.
· Added
Change
+612K
Δ Own
+219.9%
Date
Q1 2026
|
D. E. Shaw & Co., Inc. | Added· Q1 2026 | – | +612K | +219.9% | Q1 2026 | |||||
|
Los Angeles Capital Management LLC
· Added
Change
+585K
Date
Q1 2026
|
Los Angeles Capital Management LLC | Added· Q1 2026 | – | +585K | – | Q1 2026 | |||||
|
Alliancebernstein L.P.
· Reduced
Change
−543K
Date
Q1 2026
|
Alliancebernstein L.P. | Reduced· Q1 2026 | – | −543K | – | Q1 2026 | |||||
|
Squarepoint Ops LLC
· Added
Change
+541K
Date
Q1 2026
|
Squarepoint Ops LLC | Added· Q1 2026 | – | +541K | – | Q1 2026 | |||||
|
Acadian Asset Management LLC
· Reduced
Change
−513K
Date
Q1 2026
|
Acadian Asset Management LLC | Reduced· Q1 2026 | – | −513K | – | Q1 2026 | |||||
|
Panagora Asset Management Inc
· Reduced
Change
−469K
Date
Q1 2026
|
Panagora Asset Management Inc | Reduced· Q1 2026 | – | −469K | – | Q1 2026 | |||||
|
Two Sigma Investments, LP
· Added
Change
+463K
Δ Own
+2652.5%
Date
Q1 2026
|
Two Sigma Investments, LP | Added· Q1 2026 | – | +463K | +2652.5% | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Miosi Salvatore A.
· Officer
Sell
−$847K
|
Miosi Salvatore A. | Officer | Sell | $28.23 | −30K | −$847K | 531K | −5.3% | Jul 1, 2026 | Jul 2, 2026 | |||||||||
|
Colson Nathaniel H.
· Officer
Sell
−$542K
|
Colson Nathaniel H. | Officer | Sell | $27.10 | −20K | −$542K | 341K | −5.5% | Jun 25, 2026 | Jun 26, 2026 | |||||||||
|
Miosi Salvatore A.
· Officer
Sell
−$761K
|
Miosi Salvatore A. | Officer | Sell | $25.38 | −30K | −$761K | 561K | – | Jun 8, 2026 | Jun 9, 2026 | |||||||||
|
Maggio Paula C.
· Officer
Sell
−$535K
|
Maggio Paula C. | Officer | Sell | $25.55 | −21K | −$535K | 170K | – | May 29, 2026 | Jun 1, 2026 | |||||||||
|
Zandi Mark
· Director
2 operations
305
|
Zandi Mark | Director | 2 operations | – | 305 | – | 49K | – | May 21, 2026 | May 22, 2026 | |||||||||
|
Sculley Sheryl L.
· Director
2 operations
246
|
Sculley Sheryl L. | Director | 2 operations | – | 246 | – | 20K | – | May 21, 2026 | May 22, 2026 | |||||||||
|
Culver Curt S.
· Director
Grant (A)
29
|
Culver Curt S. | Director | Grant (A) | – | 29 | – | 22K | – | May 21, 2026 | May 22, 2026 | |||||||||
|
Hartzell Jay C.
· Director
2 operations
313
|
Hartzell Jay C. | Director | 2 operations | – | 313 | – | 20K | – | May 21, 2026 | May 22, 2026 | |||||||||
|
O'Leary-Gill Daniela
· Director
Grant (A)
29
|
O'Leary-Gill Daniela | Director | Grant (A) | – | 29 | – | 6K | – | May 21, 2026 | May 22, 2026 | |||||||||
|
Klein Martin P.
· Director
Grant (A)
37
|
Klein Martin P. | Director | Grant (A) | – | 37 | – | 6K | – | May 21, 2026 | May 22, 2026 | |||||||||
|
Thompson Michael Leal
· Director
Grant (A)
29
|
Thompson Michael Leal | Director | Grant (A) | – | 29 | – | 19K | – | May 21, 2026 | May 22, 2026 | |||||||||
|
Lowman Teresita M.
· Director
Grant (A)
194
|
Lowman Teresita M. | Director | Grant (A) | – | 194 | – | 34K | – | May 21, 2026 | May 22, 2026 | |||||||||
|
Chaplin C. Edward
· Director
2 operations
433
|
Chaplin C. Edward | Director | 2 operations | – | 433 | – | 50K | – | May 21, 2026 | May 22, 2026 | |||||||||
|
Culver Curt S.
· Director
Gift (G)
-312K
|
Culver Curt S. | Director | Gift (G) | – | -312K | – | 12K | – | May 15, 2026 | May 18, 2026 | |||||||||
|
Mattke Timothy J.
· Director
Sell
−$3.7M
|
Mattke Timothy J. | Director | Sell | $26.49 | −139K | −$3.7M | 1.1M | – | Apr 2, 2026 | Apr 3, 2026 | |||||||||
506 reporting institutions disclosed MTG 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.