ESSEX INVESTMENT MANAGEMENT CO LLC
Position in ETON — Eton Pharmaceuticals, Inc.
CIK 201772
BOSTON, MA
Position in ETON
as of Jun 30, 2026
· filed Aug 6, 2026
Position Value
$728,742
+$230,651 QoQ
Shares Held
20,131
-0.3% QoQ
Ownership
0.070%
of shares outstanding
% of Portfolio
0.10%
of 13F equity value
Holder Rank
#75
of 163 holders
Holding Since
Jun 2023
13 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in ETON Over Time
Shares Held
Position Value (USD)
Position in Drug Manufacturers - Specialty & Generic
Healthcare · as of Jun 30, 2026ESSEX INVESTMENT MANAGEMENT CO LLC holds $27,866,340 across 5 Drug Manufacturers - Specialty & Generic names. ETON ranks #4 (2.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | KNSA |
Kiniksa Pharmaceuticals International, plc
|
241,382 | $15,436,378 | |
| 2 | LQDA |
Liquidia Corp
|
74,743 | $5,959,259 | |
| 3 | XERS |
Xeris Biopharma Holdings, Inc.
|
715,608 | $5,667,615 | |
| 4 | ETON |
Eton Pharmaceuticals, Inc.
This page
|
20,131 | $728,742 | |
| 5 | AMRX |
Amneal Pharmaceuticals, Inc.
|
4,295 | $74,346 |
All Filings in ETON
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13 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $728,742 | 20,131 | Shares | Sole | 2026-08-06 | |
| 2026-03-31 | $498,091 | 20,182 | Shares | Sole | 2026-05-11 | |
| 2025-12-31 | $341,277 | 20,182 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $438,554 | 20,182 | Shares | Sole | 2025-11-06 | |
| 2025-06-30 | $287,593 | 20,182 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $265,038 | 20,419 | Shares | Sole | 2025-05-07 | |
| 2024-12-31 | $325,567 | 24,442 | Shares | Sole | 2025-02-07 | |
| 2024-09-30 | $163,512 | 27,252 | Shares | Sole | 2024-10-10 | |
| 2024-06-30 | $89,659 | 27,252 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $294,798 | 78,613 | Shares | Sole | 2024-05-03 | |
| 2023-12-31 | $344,324 | 78,613 | Shares | Sole | 2024-02-08 | |
| 2023-09-30 | $458,766 | 110,016 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $233,554 | 66,921 | Shares | Sole | 2023-08-14 | |
| No filing history on record for this holder in this stock. | ||||||