Starboard Value LP
· New
+$271M
Change
+6.2M
Date
Q1 2026
KM
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Starboard Value LP
· New
+$271M
Change
+6.2M
Date
Q1 2026
|
Starboard Value LP | New· Q1 2026 | +$271M | +6.2M | – | Q1 2026 | |||||
|
Norges
· Exited
−$180M
Change
−4.1M
Δ Own
−100.0%
Date
Q1 2026
|
Norges | Exited· Q1 2026 | −$180M | −4.1M | −100.0% | Q1 2026 | |||||
|
Two Sigma Advisers, LP
· Exited
−$127M
Change
−2.9M
Δ Own
−100.0%
Date
Q1 2026
|
Two Sigma Advisers, LP | Exited· Q1 2026 | −$127M | −2.9M | −100.0% | Q1 2026 | |||||
|
Two Sigma Investments, LP
· Added
+$104M
Change
+2.4M
Δ Own
+80.2%
Date
Q1 2026
|
Two Sigma Investments, LP | Added· Q1 2026 | +$104M | +2.4M | +80.2% | Q1 2026 | |||||
|
AQR Capital Management LLC
· Added
+$93M
Change
+2.1M
Date
Q1 2026
|
AQR Capital Management LLC | Added· Q1 2026 | +$93M | +2.1M | – | Q1 2026 | |||||
|
Arrowstreet Capital, Limited Partnership
· Exited
−$78M
Change
−1.8M
Δ Own
−100.0%
Date
Q1 2026
|
Arrowstreet Capital, Limited Partnership | Exited· Q1 2026 | −$78M | −1.8M | −100.0% | Q1 2026 | |||||
|
Diamond Hill Capital Management Inc
· Reduced
−$76M
Change
−1.7M
Date
Q1 2026
|
Diamond Hill Capital Management Inc | Reduced· Q1 2026 | −$76M | −1.7M | – | Q1 2026 | |||||
|
Goldman Sachs Group Inc
· Added
+$49M
Change
+1.1M
Date
Q1 2026
|
Goldman Sachs Group Inc | Added· Q1 2026 | +$49M | +1.1M | – | Q1 2026 | |||||
|
Apollo Management Holdings, L.P.
· Reduced
−$39M
Change
−902K
Date
Q1 2026
|
Apollo Management Holdings, L.P. | Reduced· Q1 2026 | −$39M | −902K | – | Q1 2026 | |||||
|
Holocene Advisors, LP
· New
+$36M
Change
+826K
Date
Q1 2026
|
Holocene Advisors, LP | New· Q1 2026 | +$36M | +826K | – | Q1 2026 | |||||
|
Nomura Holdings Inc
· Exited
−$34M
Change
−778K
Δ Own
−100.0%
Date
Q1 2026
|
Nomura Holdings Inc | Exited· Q1 2026 | −$34M | −778K | −100.0% | Q1 2026 | |||||
|
Mane Global Capital Management LP
· Exited
−$33M
Change
−749K
Δ Own
−100.0%
Date
Q1 2026
|
Mane Global Capital Management LP | Exited· Q1 2026 | −$33M | −749K | −100.0% | Q1 2026 | |||||
|
Focus Partners Wealth
· Added
+$32M
Change
+726K
Date
Q1 2026
|
Focus Partners Wealth | Added· Q1 2026 | +$32M | +726K | – | Q1 2026 | |||||
|
Vulcan Value Partners, LLC
· Reduced
−$32M
Change
−724K
Date
Q1 2026
|
Vulcan Value Partners, LLC | Reduced· Q1 2026 | −$32M | −724K | – | Q1 2026 | |||||
|
D. E. Shaw & Co., Inc.
· Reduced
−$32M
Change
−723K
Δ Own
−19.8%
Date
Q1 2026
|
D. E. Shaw & Co., Inc. | Reduced· Q1 2026 | −$32M | −723K | −19.8% | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Kessler James Francis
· Director
Grant (A)
4K
|
Kessler James Francis | Director | Grant (A) | – | 4K | – | 4K | – | Jun 26, 2026 | Jun 29, 2026 | |||||||||
|
Oshaughnessy Robert
· Director
Grant (A)
4K
|
Oshaughnessy Robert | Director | Grant (A) | – | 4K | – | 4K | – | Jun 26, 2026 | Jun 29, 2026 | |||||||||
|
Cobb William C.
· Director
Grant (A)
4K
|
Cobb William C. | Director | Grant (A) | – | 4K | – | 4K | – | Jun 26, 2026 | Jun 29, 2026 | |||||||||
|
Oneil Mark F.
· Director
Grant (A)
4K
|
Oneil Mark F. | Director | Grant (A) | – | 4K | – | 33K | +12.5% | Jun 26, 2026 | Jun 29, 2026 | |||||||||
|
Chawla Sona
· Director
Grant (A)
4K
|
Chawla Sona | Director | Grant (A) | – | 4K | – | 25K | +17.0% | Jun 26, 2026 | Jun 29, 2026 | |||||||||
|
Folliard Thomas J.
· Director
Grant (A)
4K
|
Folliard Thomas J. | Director | Grant (A) | – | 4K | – | 228K | +1.6% | Jun 26, 2026 | Jun 29, 2026 | |||||||||
|
Bensen Peter J.
· Director
Grant (A)
4K
|
Bensen Peter J. | Director | Grant (A) | – | 4K | – | 28K | +14.9% | Jun 26, 2026 | Jun 29, 2026 | |||||||||
|
Shinder Marcella
· Director
Grant (A)
4K
|
Shinder Marcella | Director | Grant (A) | – | 4K | – | 29K | +14.8% | Jun 26, 2026 | Jun 29, 2026 | |||||||||
|
Satriano Pietro
· Director
Grant (A)
4K
|
Satriano Pietro | Director | Grant (A) | – | 4K | – | 20K | +22.7% | Jun 26, 2026 | Jun 29, 2026 | |||||||||
|
McCreight David W.
· Director
Grant (A)
4K
|
McCreight David W. | Director | Grant (A) | – | 4K | – | 40K | +10.3% | Jun 26, 2026 | Jun 29, 2026 | |||||||||
|
Chawla Sona
· Director
Buy
+$107K
|
Chawla Sona | Director | Buy | $53.39 | +2K | +$107K | 22K | +10.2% | Jun 25, 2026 | Jun 26, 2026 | |||||||||
|
Shinder Marcella
· Director
Buy
+$30K
|
Shinder Marcella | Director | Buy | $52.01 | +574 | +$30K | 25K | +2.4% | Jun 25, 2026 | Jun 26, 2026 | |||||||||
|
Oneil Mark F.
· Director
2 operations
+$503K
|
Oneil Mark F. | Director | 2 operations | $52.36 | +10K | +$503K | 5K | – | Jun 24, 2026 | Jun 26, 2026 | |||||||||
|
Folliard Thomas J.
· Director
2 operations
0
|
Folliard Thomas J. | Director | 2 operations | $51.91 | 0 | – | 0 | – | Jun 23, 2026 | Jun 24, 2026 | |||||||||
|
Folliard Thomas J.
· Director
Tax withholding or exercise payment (F)
-$188K
|
Folliard Thomas J. | Director | Tax withholding or exercise payment (F) | $51.91 | -4K | -$188K | 224K | −1.6% | Jun 23, 2026 | Jun 24, 2026 | |||||||||
N
M
A
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G
A
536 reporting institutions disclosed KMX 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.