Norges
· Exited
−$1.0B
Change
−1.3M
Δ Own
−100.0%
Date
Q1 2026
RE
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Norges
· Exited
−$1.0B
Change
−1.3M
Δ Own
−100.0%
Date
Q1 2026
|
Norges | Exited· Q1 2026 | −$1.0B | −1.3M | −100.0% | Q1 2026 | |||||
|
Wellington Management Group LLP
· Added
+$898M
Change
+1.2M
Δ Own
+176.5%
Date
Q1 2026
|
Wellington Management Group LLP | Added· Q1 2026 | +$898M | +1.2M | +176.5% | Q1 2026 | |||||
|
FMR LLC
· Reduced
−$614M
Change
−801K
Δ Own
−34.5%
Date
Q1 2026
|
FMR LLC | Reduced· Q1 2026 | −$614M | −801K | −34.5% | Q1 2026 | |||||
|
Two Sigma Advisers, LP
· Exited
−$463M
Change
−605K
Δ Own
−100.0%
Date
Q1 2026
|
Two Sigma Advisers, LP | Exited· Q1 2026 | −$463M | −605K | −100.0% | Q1 2026 | |||||
|
Two Sigma Investments, LP
· Added
+$407M
Change
+531K
Δ Own
+188.9%
Date
Q1 2026
|
Two Sigma Investments, LP | Added· Q1 2026 | +$407M | +531K | +188.9% | Q1 2026 | |||||
|
Marshall Wace, LLP
· Reduced
−$366M
Change
−478K
Date
Q1 2026
|
Marshall Wace, LLP | Reduced· Q1 2026 | −$366M | −478K | – | Q1 2026 | |||||
|
Holocene Advisors, LP
· Exited
−$353M
Change
−461K
Δ Own
−100.0%
Date
Q1 2026
|
Holocene Advisors, LP | Exited· Q1 2026 | −$353M | −461K | −100.0% | Q1 2026 | |||||
|
Pacer Advisors, Inc.
· Exited
−$304M
Change
−398K
Δ Own
−100.0%
Date
Q1 2026
|
Pacer Advisors, Inc. | Exited· Q1 2026 | −$304M | −398K | −100.0% | Q1 2026 | |||||
|
JPMorgan Chase & Co
· Added
+$285M
Change
+372K
Date
Q1 2026
|
JPMorgan Chase & Co | Added· Q1 2026 | +$285M | +372K | – | Q1 2026 | |||||
|
Vanguard
· Added
+$251M
Change
+327K
Date
Q1 2026
|
Vanguard | Added· Q1 2026 | +$251M | +327K | – | Q1 2026 | |||||
|
Millennium Management LLC
· Reduced
−$243M
Change
−317K
Date
Q1 2026
|
Millennium Management LLC | Reduced· Q1 2026 | −$243M | −317K | – | Q1 2026 | |||||
|
Acadian Asset Management LLC
· Reduced
−$226M
Change
−295K
Date
Q1 2026
|
Acadian Asset Management LLC | Reduced· Q1 2026 | −$226M | −295K | – | Q1 2026 | |||||
|
Bellevue Group AG
· Added
+$203M
Change
+265K
Date
Q1 2026
|
Bellevue Group AG | Added· Q1 2026 | +$203M | +265K | – | Q1 2026 | |||||
|
Point72 Asset Management, L.P.
· Reduced
−$199M
Change
−260K
Δ Own
−99.2%
Date
Q1 2026
|
Point72 Asset Management, L.P. | Reduced· Q1 2026 | −$199M | −260K | −99.2% | Q1 2026 | |||||
|
AQR Capital Management LLC
· Added
+$180M
Change
+235K
Date
Q1 2026
|
AQR Capital Management LLC | Added· Q1 2026 | +$180M | +235K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Ryan Arthur F.
· Director
Sell
−$130K
|
Ryan Arthur F. | Director | Sell | $650.15 | −200 | −$130K | 17K | −1.1% | Jul 2, 2026 | Jul 7, 2026 | |||||||||
|
Ryan Arthur F.
· Director
12 operations
−$71K
|
Ryan Arthur F. | Director | 12 operations | $701.76–$714.13 | −100 | −$71K | 18K | – | May 1, 2026 | May 4, 2026 | |||||||||
|
Ryan Arthur F.
· Director
9 operations
−$78K
|
Ryan Arthur F. | Director | 9 operations | $771.32–$779.71 | −100 | −$78K | 18K | – | Apr 1, 2026 | Apr 3, 2026 | |||||||||
|
Ryan Arthur F.
· Director
13 operations
−$79K
|
Ryan Arthur F. | Director | 13 operations | $777.46–$789.28 | −100 | −$79K | 18K | – | Mar 2, 2026 | Mar 3, 2026 | |||||||||
|
Zoghbi Huda Y.
· Director
11 operations
−$1.3M
|
Zoghbi Huda Y. | Director | 11 operations | $774.68–$790.00 | −2K | −$1.3M | 3K | – | Feb 19, 2026 | Feb 23, 2026 | |||||||||
|
Zoghbi Huda Y.
· Director
2 operations
0
|
Zoghbi Huda Y. | Director | 2 operations | $376.69 | 0 | – | 800 | – | Feb 19, 2026 | Feb 23, 2026 | |||||||||
|
Pitofsky Jason
· Officer
11 operations
−$1.6M
|
Pitofsky Jason | Officer | 11 operations | $775.95–$785.72 | −2K | −$1.6M | 5K | – | Feb 9, 2026 | Feb 11, 2026 | |||||||||
|
Pitofsky Jason
· Officer
2 operations
0
|
Pitofsky Jason | Officer | 2 operations | $492.00 | 0 | – | 905 | – | Feb 9, 2026 | Feb 11, 2026 | |||||||||
|
Ryan Arthur F.
· Director
13 operations
−$78K
|
Ryan Arthur F. | Director | 13 operations | $775.63–$787.82 | −100 | −$78K | 18K | – | Feb 9, 2026 | Feb 11, 2026 | |||||||||
|
Bassler Bonnie L.
· Director
Sell
−$1.2M
|
Bassler Bonnie L. | Director | Sell | $800.00 | −2K | −$1.2M | 2K | – | Jan 7, 2026 | Jan 8, 2026 | |||||||||
|
Bassler Bonnie L.
· Director
2 operations
0
|
Bassler Bonnie L. | Director | 2 operations | $374.12 | 0 | – | 3K | – | Jan 7, 2026 | Jan 8, 2026 | |||||||||
|
Zoghbi Huda Y.
· Director
2 operations
2K
|
Zoghbi Huda Y. | Director | 2 operations | – | 2K | – | 2K | – | Jan 2, 2026 | Jan 6, 2026 | |||||||||
|
Thompson Craig B.
· Director
2 operations
2K
|
Thompson Craig B. | Director | 2 operations | – | 2K | – | 2K | – | Jan 2, 2026 | Jan 6, 2026 | |||||||||
|
Sing George L.
· Director
2 operations
2K
|
Sing George L. | Director | 2 operations | – | 2K | – | 2K | – | Jan 2, 2026 | Jan 6, 2026 | |||||||||
|
Guarini Kathryn
· Director
2 operations
2K
|
Guarini Kathryn | Director | 2 operations | – | 2K | – | 2K | – | Jan 2, 2026 | Jan 6, 2026 | |||||||||
N
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1,257 reporting institutions disclosed REGN 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.