ArrowMark Colorado Holdings LLC
Position in PRAX — Praxis Precision Medicines, Inc.
CIK 1483859
Denver, CO
Position in PRAX
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$37,970,413
+$29,128,213 QoQ
Shares Held
117,851
+292.8% QoQ
Ownership
0.423%
of shares outstanding
% of Portfolio
1.05%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Dec 2025
2 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in PRAX Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026ArrowMark Colorado Holdings LLC holds $391,186,309 across 37 Biotechnology names. PRAX ranks #1 (9.7% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | PRAX |
Praxis Precision Medicines, Inc.
This page
|
117,851 | $37,970,413 | |
| 2 | HALO |
Halozyme Therapeutics, Inc.
|
569,789 | $36,825,463 | |
| 3 | MDGL |
Madrigal Pharmaceuticals, Inc.
|
62,441 | $32,685,990 | |
| 4 | DFTX |
Definium Therapeutics, Inc.
|
1,594,717 | $30,140,151 | |
| 5 | MAZE |
Maze Therapeutics, Inc.
|
767,383 | $22,906,382 | |
| 6 | NUVL |
Nuvalent, Inc.
|
186,850 | $19,142,782 | |
| 7 | RPRX |
Royalty Pharma plc
|
366,753 | $17,593,141 | |
| 8 | TNGX |
Tango Therapeutics, Inc.
|
708,385 | $14,819,414 |
All Filings in PRAX
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2 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $37,970,413 | 117,851 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $8,842,200 | 30,000 | Shares | Sole | 2026-02-17 | |
| No filing history on record for this holder in this stock. | ||||||