ESSEX INVESTMENT MANAGEMENT CO LLC
Position in MIRM — Mirum Pharmaceuticals, Inc.
CIK 201772
BOSTON, MA
Position in MIRM
as of Jun 30, 2026
· filed Aug 6, 2026
Position Value
$12,370,669
+$2,362,405 QoQ
Shares Held
105,669
-2.5% QoQ
Ownership
0.163%
of shares outstanding
% of Portfolio
1.67%
of 13F equity value
Holder Rank
#82
of 326 holders
Holding Since
Jun 2025
5 quarters on record
Voting authority
Sole 75%
Shared 0%
None 25%
Common Shares in MIRM Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026ESSEX INVESTMENT MANAGEMENT CO LLC holds $67,663,995 across 13 Biotechnology names. MIRM ranks #2 (18.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | LGND |
Ligand Pharmaceuticals Inc
|
43,567 | $13,771,093 | |
| 2 | MIRM |
Mirum Pharmaceuticals, Inc.
This page
|
105,669 | $12,370,669 | |
| 3 | TVTX |
Travere Therapeutics, Inc.
|
133,866 | $7,604,927 | |
| 4 | JAZZ |
Jazz Pharmaceuticals plc
|
21,665 | $5,220,615 | |
| 5 | OCUL |
Ocular Therapeutix, Inc
|
482,154 | $4,734,752 | |
| 6 | INSM |
INSMED Inc
|
42,991 | $4,583,700 | |
| 7 | PGEN |
Precigen, Inc.
|
706,294 | $4,025,875 | |
| 8 | AXSM |
Axsome Therapeutics, Inc.
|
16,244 | $3,976,043 |
All Filings in MIRM
Export CSV
5 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $12,370,669 | 105,669 | Shares | Sole | 2026-08-06 | |
| 2026-03-31 | $10,008,264 | 108,338 | Shares | Sole | 2026-05-11 | |
| 2025-12-31 | $8,792,376 | 111,310 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $8,317,605 | 113,458 | Shares | Sole | 2025-11-06 | |
| 2025-06-30 | $5,736,880 | 112,731 | Shares | Sole | 2025-08-12 | |
| No filing history on record for this holder in this stock. | ||||||