Jacobs Levy Equity Management, Inc
· Added
Change
+1.1M
Date
Q1 2026
AS
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Jacobs Levy Equity Management, Inc
· Added
Change
+1.1M
Date
Q1 2026
|
Jacobs Levy Equity Management, Inc | Added· Q1 2026 | – | +1.1M | – | Q1 2026 | |||||
|
Royce & Associates LP
· New
Change
+987K
Date
Q1 2026
|
Royce & Associates LP | New· Q1 2026 | – | +987K | – | Q1 2026 | |||||
|
Hrt Financial LP
· New
Change
+870K
Date
Q1 2026
|
Hrt Financial LP | New· Q1 2026 | – | +870K | – | Q1 2026 | |||||
|
D. E. Shaw & Co., Inc.
· Added
Change
+810K
Δ Own
+3490.4%
Date
Q1 2026
|
D. E. Shaw & Co., Inc. | Added· Q1 2026 | – | +810K | +3490.4% | Q1 2026 | |||||
|
Oaktop Capital Management Ii, L.P.
· Added
Change
+774K
Date
Q1 2026
|
Oaktop Capital Management Ii, L.P. | Added· Q1 2026 | – | +774K | – | Q1 2026 | |||||
|
Gagnon Securities LLC
· Added
Change
+729K
Date
Q1 2026
|
Gagnon Securities LLC | Added· Q1 2026 | – | +729K | – | Q1 2026 | |||||
|
Marshall Wace, LLP
· Added
Change
+709K
Date
Q1 2026
|
Marshall Wace, LLP | Added· Q1 2026 | – | +709K | – | Q1 2026 | |||||
|
Millennium Management LLC
· Added
Change
+534K
Date
Q1 2026
|
Millennium Management LLC | Added· Q1 2026 | – | +534K | – | Q1 2026 | |||||
|
Algert Global LLC
· Added
Change
+271K
Date
Q1 2026
|
Algert Global LLC | Added· Q1 2026 | – | +271K | – | Q1 2026 | |||||
|
Point72 Asset Management, L.P.
· New
Change
+257K
Date
Q1 2026
|
Point72 Asset Management, L.P. | New· Q1 2026 | – | +257K | – | Q1 2026 | |||||
|
Needham Investment Management LLC
· Added
Change
+167K
Date
Q1 2026
|
Needham Investment Management LLC | Added· Q1 2026 | – | +167K | – | Q1 2026 | |||||
|
AQR Capital Management LLC
· Added
Change
+156K
Date
Q1 2026
|
AQR Capital Management LLC | Added· Q1 2026 | – | +156K | – | Q1 2026 | |||||
|
Balyasny Asset Management L.P.
· New
Change
+149K
Date
Q1 2026
|
Balyasny Asset Management L.P. | New· Q1 2026 | – | +149K | – | Q1 2026 | |||||
|
Man Group PLC
· New
Change
+143K
Date
Q1 2026
|
Man Group PLC | New· Q1 2026 | – | +143K | – | Q1 2026 | |||||
|
Lazard Asset Management LLC
· New
Change
+142K
Date
Q1 2026
|
Lazard Asset Management LLC | New· Q1 2026 | – | +142K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Noglows William P.
· Director
2 operations
0
|
Noglows William P. | Director | 2 operations | $4.75 | 0 | – | 0 | – | Jun 23, 2026 | Jun 26, 2026 | |||||||||
|
Mitchell Steven R.
· Director
2 operations
19K
|
Mitchell Steven R. | Director | 2 operations | – | 19K | – | 9K | – | May 13, 2026 | May 14, 2026 | |||||||||
|
Sweetnam James E.
· Director
2 operations
19K
|
Sweetnam James E. | Director | 2 operations | – | 19K | – | 9K | – | May 13, 2026 | May 14, 2026 | |||||||||
|
Noglows William P.
· Director
2 operations
19K
|
Noglows William P. | Director | 2 operations | – | 19K | – | 9K | – | May 13, 2026 | May 14, 2026 | |||||||||
|
Kool Kathleen
· Director
2 operations
19K
|
Kool Kathleen | Director | 2 operations | – | 19K | – | 9K | – | May 13, 2026 | May 14, 2026 | |||||||||
|
Robinson Cari
· Director
2 operations
19K
|
Robinson Cari | Director | 2 operations | – | 19K | – | 9K | – | May 13, 2026 | May 14, 2026 | |||||||||
|
Whitaker Corby C.
· Officer
Tax withholding or exercise payment (F)
-$6K
|
Whitaker Corby C. | Officer | Tax withholding or exercise payment (F) | $3.22 | -2K | -$6K | 205K | – | Mar 8, 2026 | Mar 10, 2026 | |||||||||
|
Thoele Grant Douglas
· Officer
Tax withholding or exercise payment (F)
-$2K
|
Thoele Grant Douglas | Officer | Tax withholding or exercise payment (F) | $3.22 | -590 | -$2K | 78K | – | Mar 8, 2026 | Mar 10, 2026 | |||||||||
|
Young Donald R.
· Director
Tax withholding or exercise payment (F)
-$14K
|
Young Donald R. | Director | Tax withholding or exercise payment (F) | $3.22 | -4K | -$14K | 638K | – | Mar 8, 2026 | Mar 10, 2026 | |||||||||
|
Landes Gregg
· Officer
Tax withholding or exercise payment (F)
-$6K
|
Landes Gregg | Officer | Tax withholding or exercise payment (F) | $3.22 | -2K | -$6K | 103K | – | Mar 8, 2026 | Mar 10, 2026 | |||||||||
|
Young Donald R.
· Director, Officer
Tax withholding or exercise payment (F)
-$28K
|
Young Donald R. | Director, Officer | Tax withholding or exercise payment (F) | $3.27 | -9K | -$28K | 642K | – | Mar 5, 2026 | Mar 6, 2026 | |||||||||
|
Landes Gregg
· Officer
Tax withholding or exercise payment (F)
-$12K
|
Landes Gregg | Officer | Tax withholding or exercise payment (F) | $3.27 | -4K | -$12K | 105K | – | Mar 5, 2026 | Mar 6, 2026 | |||||||||
|
Whitaker Corby C.
· Officer
Tax withholding or exercise payment (F)
-$13K
|
Whitaker Corby C. | Officer | Tax withholding or exercise payment (F) | $3.27 | -4K | -$13K | 207K | – | Mar 5, 2026 | Mar 6, 2026 | |||||||||
|
Daniel Santhosh P.
· Officer
Tax withholding or exercise payment (F)
-$3K
|
Daniel Santhosh P. | Officer | Tax withholding or exercise payment (F) | $3.27 | -986 | -$3K | 15K | – | Mar 5, 2026 | Mar 6, 2026 | |||||||||
|
Thoele Grant Douglas
· Officer
Tax withholding or exercise payment (F)
-$8K
|
Thoele Grant Douglas | Officer | Tax withholding or exercise payment (F) | $3.27 | -2K | -$8K | 78K | – | Mar 5, 2026 | Mar 6, 2026 | |||||||||
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178 reporting institutions disclosed ASPN 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.