Essex Investment Management Co LLC
· New
Change
+901K
Date
Q1 2026
AP
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Essex Investment Management Co LLC
· New
Change
+901K
Date
Q1 2026
|
Essex Investment Management Co LLC | New· Q1 2026 | – | +901K | – | Q1 2026 | |||||
|
Nantahala Capital Management, LLC
· Reduced
Change
−534K
Date
Q1 2026
|
Nantahala Capital Management, LLC | Reduced· Q1 2026 | – | −534K | – | Q1 2026 | |||||
|
Archon Capital Management LLC
· Reduced
Change
−422K
Date
Q1 2026
|
Archon Capital Management LLC | Reduced· Q1 2026 | – | −422K | – | Q1 2026 | |||||
|
Legato Capital Management LLC
· New
Change
+281K
Date
Q1 2026
|
Legato Capital Management LLC | New· Q1 2026 | – | +281K | – | Q1 2026 | |||||
|
UBS Group AG
· Added
Change
+230K
Date
Q1 2026
|
UBS Group AG | Added· Q1 2026 | – | +230K | – | Q1 2026 | |||||
|
Vanguard
· Added
Change
+203K
Date
Q1 2026
|
Vanguard | Added· Q1 2026 | – | +203K | – | Q1 2026 | |||||
|
Millennium Management LLC
· Added
Change
+169K
Date
Q1 2026
|
Millennium Management LLC | Added· Q1 2026 | – | +169K | – | Q1 2026 | |||||
|
Royce & Associates LP
· Added
Change
+168K
Date
Q1 2026
|
Royce & Associates LP | Added· Q1 2026 | – | +168K | – | Q1 2026 | |||||
|
Citadel Advisors LLC
· New
Change
+108K
Date
Q1 2026
|
Citadel Advisors LLC | New· Q1 2026 | – | +108K | – | Q1 2026 | |||||
|
683 Capital Management, LLC
· Reduced
Change
−105K
Date
Q1 2026
|
683 Capital Management, LLC | Reduced· Q1 2026 | – | −105K | – | Q1 2026 | |||||
|
Exoduspoint Capital Management, LP
· Exited
Change
−87K
Δ Own
−100.0%
Date
Q1 2026
|
Exoduspoint Capital Management, LP | Exited· Q1 2026 | – | −87K | −100.0% | Q1 2026 | |||||
|
Renaissance Technologies LLC
· Added
Change
+82K
Δ Own
+37.2%
Date
Q1 2026
|
Renaissance Technologies LLC | Added· Q1 2026 | – | +82K | +37.2% | Q1 2026 | |||||
|
Hillsdale Investment Management Inc.
· Added
Change
+80K
Date
Q1 2026
|
Hillsdale Investment Management Inc. | Added· Q1 2026 | – | +80K | – | Q1 2026 | |||||
|
Newedge Advisors, LLC
· New
Change
+69K
Date
Q1 2026
|
Newedge Advisors, LLC | New· Q1 2026 | – | +69K | – | Q1 2026 | |||||
|
Susquehanna International Group, LLP
· Added
Change
+66K
Date
Q1 2026
|
Susquehanna International Group, LLP | Added· Q1 2026 | – | +66K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Waldman Lawrence
· Director
2 operations
0
|
Waldman Lawrence | Director | 2 operations | $1.88 | 0 | – | 0 | – | Jun 30, 2026 | Jul 2, 2026 | |||||||||
|
Waldman Lawrence
· Director
Tax withholding or exercise payment (F)
-$23K
|
Waldman Lawrence | Director | Tax withholding or exercise payment (F) | $4.49 | -5K | -$23K | 12K | −29.0% | Jun 30, 2026 | Jul 2, 2026 | |||||||||
|
Roman Shawn David
· Officer
2 operations
0
|
Roman Shawn David | Officer | 2 operations | $3.23 | 0 | – | 0 | – | Jun 15, 2026 | Jun 17, 2026 | |||||||||
|
Roman Shawn David
· Officer
Tax withholding or exercise payment (F)
-$48K
|
Roman Shawn David | Officer | Tax withholding or exercise payment (F) | $4.60 | -11K | -$48K | 16K | – | Jun 15, 2026 | Jun 17, 2026 | |||||||||
|
Levine Wendy Lauren
· Director
Grant (A)
50K
|
Levine Wendy Lauren | Director | Grant (A) | – | 50K | – | 50K | – | Jun 11, 2026 | Jun 15, 2026 | |||||||||
|
Vizirgianakis Stavros G.
· Director
Grant (A)
450K
|
Vizirgianakis Stavros G. | Director | Grant (A) | – | 450K | – | 2.2M | – | Jun 11, 2026 | Jun 15, 2026 | |||||||||
|
Goodwin Charles D. II
· Director
Grant (A)
214K
|
Goodwin Charles D. II | Director | Grant (A) | – | 214K | – | 214K | – | Jun 11, 2026 | Jun 15, 2026 | |||||||||
|
Roman Shawn David
· Officer
Grant (A)
88K
|
Roman Shawn David | Officer | Grant (A) | – | 88K | – | 88K | – | Jun 11, 2026 | Jun 15, 2026 | |||||||||
|
Baylor-Henry Minnie
· Director
Grant (A)
50K
|
Baylor-Henry Minnie | Director | Grant (A) | – | 50K | – | 50K | – | Jun 11, 2026 | Jun 15, 2026 | |||||||||
|
Waldman Lawrence
· Director
Grant (A)
50K
|
Waldman Lawrence | Director | Grant (A) | – | 50K | – | 50K | – | Jun 11, 2026 | Jun 15, 2026 | |||||||||
|
Hill Matthew C.
· CFO
Grant (A)
132K
|
Hill Matthew C. | CFO | Grant (A) | – | 132K | – | 132K | – | Jun 11, 2026 | Jun 15, 2026 | |||||||||
|
Citronowicz Moshe
· Officer
Grant (A)
63K
|
Citronowicz Moshe | Officer | Grant (A) | – | 63K | – | 63K | – | Jun 11, 2026 | Jun 15, 2026 | |||||||||
|
Citronowicz Moshe
· Officer
2 operations
0
|
Citronowicz Moshe | Officer | 2 operations | $1.80 | 0 | – | 0 | – | Mar 15, 2026 | Mar 17, 2026 | |||||||||
|
Roman Shawn David
· Officer
2 operations
0
|
Roman Shawn David | Officer | 2 operations | $1.80 | 0 | – | 0 | – | Jan 27, 2026 | Jan 29, 2026 | |||||||||
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58 reporting institutions disclosed APYX 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.