Alliancebernstein L.P.
· Added
+$57M
Change
+1.1M
Date
Q1 2026
LA
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Alliancebernstein L.P.
· Added
+$57M
Change
+1.1M
Date
Q1 2026
|
Alliancebernstein L.P. | Added· Q1 2026 | +$57M | +1.1M | – | Q1 2026 | |||||
|
Van Eck Associates Corp
· New
+$57M
Change
+1.0M
Date
Q1 2026
|
Van Eck Associates Corp | New· Q1 2026 | +$57M | +1.0M | – | Q1 2026 | |||||
|
Driehaus Capital Management LLC
· Added
+$56M
Change
+1.0M
Date
Q1 2026
|
Driehaus Capital Management LLC | Added· Q1 2026 | +$56M | +1.0M | – | Q1 2026 | |||||
|
FMR LLC
· Added
+$53M
Change
+984K
Δ Own
+834.0%
Date
Q1 2026
|
FMR LLC | Added· Q1 2026 | +$53M | +984K | +834.0% | Q1 2026 | |||||
|
Harvey Partners, LLC
· Reduced
−$43M
Change
−789K
Date
Q1 2026
|
Harvey Partners, LLC | Reduced· Q1 2026 | −$43M | −789K | – | Q1 2026 | |||||
|
Gilder Gagnon Howe & Co LLC
· New
+$43M
Change
+786K
Date
Q1 2026
|
Gilder Gagnon Howe & Co LLC | New· Q1 2026 | +$43M | +786K | – | Q1 2026 | |||||
|
Senvest Management, LLC
· Reduced
−$41M
Change
−758K
Date
Q1 2026
|
Senvest Management, LLC | Reduced· Q1 2026 | −$41M | −758K | – | Q1 2026 | |||||
|
Millennium Management LLC
· Added
+$32M
Change
+585K
Date
Q1 2026
|
Millennium Management LLC | Added· Q1 2026 | +$32M | +585K | – | Q1 2026 | |||||
|
Neuberger Berman Group LLC
· Reduced
−$29M
Change
−536K
Date
Q1 2026
|
Neuberger Berman Group LLC | Reduced· Q1 2026 | −$29M | −536K | – | Q1 2026 | |||||
|
Moore Capital Management, LP
· New
+$25M
Change
+465K
Date
Q1 2026
|
Moore Capital Management, LP | New· Q1 2026 | +$25M | +465K | – | Q1 2026 | |||||
|
Portolan Capital Management, LLC
· Reduced
−$20M
Change
−365K
Date
Q1 2026
|
Portolan Capital Management, LLC | Reduced· Q1 2026 | −$20M | −365K | – | Q1 2026 | |||||
|
Polar Capital Holdings PLC
· New
+$17M
Change
+320K
Date
Q1 2026
|
Polar Capital Holdings PLC | New· Q1 2026 | +$17M | +320K | – | Q1 2026 | |||||
|
D. E. Shaw & Co., Inc.
· Reduced
−$16M
Change
−295K
Δ Own
−96.3%
Date
Q1 2026
|
D. E. Shaw & Co., Inc. | Reduced· Q1 2026 | −$16M | −295K | −96.3% | Q1 2026 | |||||
|
Zevenbergen Capital Investments LLC
· New
+$15M
Change
+286K
Date
Q1 2026
|
Zevenbergen Capital Investments LLC | New· Q1 2026 | +$15M | +286K | – | Q1 2026 | |||||
|
T. Rowe Price Associates
· Added
+$15M
Change
+278K
Date
Q1 2026
|
T. Rowe Price Associates | Added· Q1 2026 | +$15M | +278K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Haines Gerald M. II
· Director
Grant (A)
2K
|
Haines Gerald M. II | Director | Grant (A) | – | 2K | – | 6K | – | Jun 5, 2026 | Jun 9, 2026 | |||||||||
|
Hartman Mark D.
· Director
Grant (A)
2K
|
Hartman Mark D. | Director | Grant (A) | – | 2K | – | 9K | – | Jun 5, 2026 | Jun 9, 2026 | |||||||||
|
Locke Gary
· Director
Grant (A)
2K
|
Locke Gary | Director | Grant (A) | – | 2K | – | 115K | – | Jun 5, 2026 | Jun 9, 2026 | |||||||||
|
Gossman William
· Director
Grant (A)
2K
|
Gossman William | Director | Grant (A) | – | 2K | – | 100K | – | Jun 5, 2026 | Jun 9, 2026 | |||||||||
|
Moore Geoffrey
· Director
Grant (A)
2K
|
Moore Geoffrey | Director | Grant (A) | – | 2K | – | 90K | – | Jun 5, 2026 | Jun 9, 2026 | |||||||||
|
Nichols Camille
· Director
Grant (A)
2K
|
Nichols Camille | Director | Grant (A) | – | 2K | – | 57K | – | Jun 5, 2026 | Jun 9, 2026 | |||||||||
|
Keeney Scott H.
· Director
6 operations
−$1.2M
|
Keeney Scott H. | Director | 6 operations | $71.67–$76.61 | −16K | −$1.2M | 2.2M | – | Jun 4, 2026 | Jun 5, 2026 | |||||||||
|
Corso Joseph John
· CFO
Sell
−$278K
|
Corso Joseph John | CFO | Sell | $72.90 | −4K | −$278K | 170K | – | Jun 4, 2026 | Jun 5, 2026 | |||||||||
|
Keeney Scott H.
· Director
Sell
−$694K
|
Keeney Scott H. | Director | Sell | $77.99 | −9K | −$694K | 2.2M | – | Jun 3, 2026 | Jun 5, 2026 | |||||||||
|
Nias James
· Officer
Sell
−$73K
|
Nias James | Officer | Sell | $77.99 | −940 | −$73K | 98K | – | Jun 3, 2026 | Jun 5, 2026 | |||||||||
|
Corso Joseph John
· CFO
Sell
−$299K
|
Corso Joseph John | CFO | Sell | $77.99 | −4K | −$299K | 174K | – | Jun 3, 2026 | Jun 5, 2026 | |||||||||
|
Keeney Scott H.
· Director
6 operations
−$3.0M
|
Keeney Scott H. | Director | 6 operations | $72.37–$77.39 | −41K | −$3.0M | 2.2M | – | May 29, 2026 | Jun 1, 2026 | |||||||||
|
Keeney Scott H.
· Director
Gift (G)
-4K
|
Keeney Scott H. | Director | Gift (G) | – | -4K | – | 501 | – | May 29, 2026 | Jun 1, 2026 | |||||||||
|
Keeney Scott H.
· Director
5 operations
−$3.3M
|
Keeney Scott H. | Director | 5 operations | $77.44–$81.06 | −41K | −$3.3M | 2.3M | – | May 28, 2026 | Jun 1, 2026 | |||||||||
|
Keeney Scott H.
· Director
6 operations
−$3.1M
|
Keeney Scott H. | Director | 6 operations | $71.47–$76.46 | −41K | −$3.1M | 2.3M | – | May 21, 2026 | May 21, 2026 | |||||||||
N
A
M
G
A
A
329 reporting institutions disclosed LASR 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.