Wellington Management Group LLP
· Reduced
−$235M
Change
−2.4M
Δ Own
−57.5%
Date
Q1 2026
WL
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Wellington Management Group LLP
· Reduced
−$235M
Change
−2.4M
Δ Own
−57.5%
Date
Q1 2026
|
Wellington Management Group LLP | Reduced· Q1 2026 | −$235M | −2.4M | −57.5% | Q1 2026 | |||||
|
Capital World Investors
· Added
+$198M
Change
+2.0M
Date
Q1 2026
|
Capital World Investors | Added· Q1 2026 | +$198M | +2.0M | – | Q1 2026 | |||||
|
FMR LLC
· Added
+$105M
Change
+1.1M
Δ Own
+473.5%
Date
Q1 2026
|
FMR LLC | Added· Q1 2026 | +$105M | +1.1M | +473.5% | Q1 2026 | |||||
|
Victory Capital Management Inc
· Reduced
−$104M
Change
−1.1M
Date
Q1 2026
|
Victory Capital Management Inc | Reduced· Q1 2026 | −$104M | −1.1M | – | Q1 2026 | |||||
|
Orbis Allan Gray Ltd
· Added
+$88M
Change
+907K
Date
Q1 2026
|
Orbis Allan Gray Ltd | Added· Q1 2026 | +$88M | +907K | – | Q1 2026 | |||||
|
Goldman Sachs Group Inc
· Added
+$62M
Change
+639K
Date
Q1 2026
|
Goldman Sachs Group Inc | Added· Q1 2026 | +$62M | +639K | – | Q1 2026 | |||||
|
Thompson Siegel & Walmsley LLC
· Reduced
−$52M
Change
−533K
Date
Q1 2026
|
Thompson Siegel & Walmsley LLC | Reduced· Q1 2026 | −$52M | −533K | – | Q1 2026 | |||||
|
Citadel Advisors LLC
· Added
+$50M
Change
+512K
Δ Own
+252.0%
Date
Q1 2026
|
Citadel Advisors LLC | Added· Q1 2026 | +$50M | +512K | +252.0% | Q1 2026 | |||||
|
Holocene Advisors, LP
· Reduced
−$48M
Change
−491K
Date
Q1 2026
|
Holocene Advisors, LP | Reduced· Q1 2026 | −$48M | −491K | – | Q1 2026 | |||||
|
Vanguard
· Reduced
−$42M
Change
−429K
Date
Q1 2026
|
Vanguard | Reduced· Q1 2026 | −$42M | −429K | – | Q1 2026 | |||||
|
Dimensional
· Reduced
−$41M
Change
−420K
Date
Q1 2026
|
Dimensional | Reduced· Q1 2026 | −$41M | −420K | – | Q1 2026 | |||||
|
Antipodes Partners Ltd
· Exited
−$40M
Change
−417K
Δ Own
−100.0%
Date
Q1 2026
|
Antipodes Partners Ltd | Exited· Q1 2026 | −$40M | −417K | −100.0% | Q1 2026 | |||||
|
Schroder Investment Management Group
· New
+$36M
Change
+375K
Date
Q1 2026
|
Schroder Investment Management Group | New· Q1 2026 | +$36M | +375K | – | Q1 2026 | |||||
|
Balyasny Asset Management L.P.
· New
+$36M
Change
+370K
Date
Q1 2026
|
Balyasny Asset Management L.P. | New· Q1 2026 | +$36M | +370K | – | Q1 2026 | |||||
|
Voloridge Investment Management, LLC
· Exited
−$34M
Change
−349K
Δ Own
−100.0%
Date
Q1 2026
|
Voloridge Investment Management, LLC | Exited· Q1 2026 | −$34M | −349K | −100.0% | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Baksht Jonathan
· Officer
Grant (A)
21K
|
Baksht Jonathan | Officer | Grant (A) | – | 21K | – | 21K | – | Jun 15, 2026 | Jun 16, 2026 | |||||||||
|
Bender Mark Steven
· Officer
Tax withholding or exercise payment (F)
-$514K
|
Bender Mark Steven | Officer | Tax withholding or exercise payment (F) | $97.34 | -5K | -$514K | 36K | – | May 13, 2026 | May 14, 2026 | |||||||||
|
Bender Mark Steven
· Officer
2 operations
0
|
Bender Mark Steven | Officer | 2 operations | – | 0 | – | 0 | – | May 12, 2026 | May 14, 2026 | |||||||||
|
Powers Brian John
· Officer
Grant (A)
2K
|
Powers Brian John | Officer | Grant (A) | – | 2K | – | 2K | – | Apr 2, 2026 | Apr 6, 2026 | |||||||||
|
Buesinger Robert F.
· Officer
Sell
−$461K
|
Buesinger Robert F. | Officer | Sell | $115.25 | −4K | −$461K | 34K | – | Mar 27, 2026 | Mar 31, 2026 | |||||||||
|
Bender Mark Steven
· Officer
Sell
−$1.8M
|
Bender Mark Steven | Officer | Sell | $112.54 | −16K | −$1.8M | 28K | – | Mar 27, 2026 | Mar 30, 2026 | |||||||||
|
Bender Mark Steven
· Officer
2 operations
−$1.8M
|
Bender Mark Steven | Officer | 2 operations | $100.91–$101.52 | −17K | −$1.8M | 45K | – | Feb 27, 2026 | Mar 2, 2026 | |||||||||
|
Bender Mark Steven
· Officer
4 operations
0
|
Bender Mark Steven | Officer | 4 operations | $65.81–$86.54 | 0 | – | 0 | – | Feb 27, 2026 | Mar 2, 2026 | |||||||||
|
Bender Mark Steven
· Officer
Shares transferred outside the market (D), often for tax or as a gift, not a market sale
-$1.2M
|
Bender Mark Steven | Officer | Shares transferred outside the market (D), often for tax or as a gift, not a market sale | $98.20 | -13K | -$1.2M | 62K | – | Feb 27, 2026 | Mar 2, 2026 | |||||||||
|
Patel Bhavesh V
· Director
Grant (A)
2K
|
Patel Bhavesh V | Director | Grant (A) | – | 2K | – | 2K | – | Feb 20, 2026 | Feb 24, 2026 | |||||||||
|
Szwejbka Scott Thomas
· Officer
Tax withholding or exercise payment (F)
-$9K
|
Szwejbka Scott Thomas | Officer | Tax withholding or exercise payment (F) | $94.10 | -91 | -$9K | 14K | – | Feb 20, 2026 | Feb 23, 2026 | |||||||||
|
Szwejbka Scott Thomas
· Officer
2 operations
19K
|
Szwejbka Scott Thomas | Officer | 2 operations | – | 19K | – | 15K | – | Feb 20, 2026 | Feb 23, 2026 | |||||||||
|
Holy Jeffrey Adam
· Officer
Tax withholding or exercise payment (F)
-$8K
|
Holy Jeffrey Adam | Officer | Tax withholding or exercise payment (F) | $94.10 | -81 | -$8K | 5K | – | Feb 20, 2026 | Feb 23, 2026 | |||||||||
|
Holy Jeffrey Adam
· Officer
3 operations
8K
|
Holy Jeffrey Adam | Officer | 3 operations | – | 8K | – | 4K | – | Feb 20, 2026 | Feb 23, 2026 | |||||||||
|
Gilson Jean-Marc
· Officer
2 operations
139K
|
Gilson Jean-Marc | Officer | 2 operations | – | 139K | – | 30K | – | Feb 20, 2026 | Feb 23, 2026 | |||||||||
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333 reporting institutions disclosed WLK 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.