ArrowMark Colorado Holdings LLC
Position in DFTX — Definium Therapeutics, Inc.
CIK 1483859
Denver, CO
Position in DFTX
as of Jun 30, 2026
· filed Aug 13, 2026
Position Value
$26,533,805
-$3,606,346 QoQ
Shares Held
564,069
-64.6% QoQ
Ownership
0.420%
of shares outstanding
% of Portfolio
1.11%
of 13F equity value
Holder Rank
#41
of 358 holders
Holding Since
Mar 2026
2 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in DFTX Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026ArrowMark Colorado Holdings LLC holds $294,624,620 across 32 Biotechnology names. DFTX ranks #2 (9.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ABCL |
AbCellera Biologics Inc.
|
4,105,095 | $32,224,995 | |
| 2 | DFTX |
Definium Therapeutics, Inc.
This page
|
564,069 | $26,533,805 | |
| 3 | MAZE |
Maze Therapeutics, Inc.
|
767,383 | $22,898,708 | |
| 4 | TNGX |
Tango Therapeutics, Inc.
|
708,385 | $22,144,115 | |
| 5 | RPRX |
Royalty Pharma plc
|
366,199 | $20,532,777 | |
| 6 | PRAX |
Praxis Precision Medicines, Inc.
|
46,030 | $15,410,383 | |
| 7 | ZBIO |
Zenas BioPharma, Inc.
|
573,318 | $14,550,810 | |
| 8 | CGON |
CG Oncology, Inc.
|
155,354 | $11,037,901 |
All Filings in DFTX
Export CSV
2 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $26,533,805 | 564,069 | Shares | Sole | 2026-08-13 | |
| 2026-03-31 | $30,140,151 | 1,594,717 | Shares | Sole | 2026-05-15 | |
| No filing history on record for this holder in this stock. | ||||||