Position in MIRM
as of Mar 31, 2026
· filed May 18, 2026
Position Value
$641,654,204
+$162,555,527 QoQ
Shares Held
6,945,813
+14.5% QoQ
Ownership
11.4%
of shares outstanding
% of Portfolio
0.33%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2023
13 quarters on record
Voting authority
Sole 0.ToString("F0")%
Shared 96.74173491281725.ToString("F0")%
None 3.2582650871827386.ToString("F0")%
Common Shares in MIRM Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026JANUS HENDERSON GROUP PLC holds $15,891,382,798 across 182 Biotechnology names. MIRM ranks #8 (4.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ARGX |
Argenx SE
|
2,541,732 | $1,856,099,791 | |
| 2 | PRAX |
Praxis Precision Medicines, Inc.
|
3,458,863 | $1,114,411,067 | |
| 3 | MDGL |
Madrigal Pharmaceuticals, Inc.
|
2,018,647 | $1,056,701,142 | |
| 4 | BBIO |
BridgeBio Pharma, Inc.
|
13,179,013 | $978,673,503 | |
| 5 | PCVX |
Vaxcyte, Inc.
|
16,575,875 | $963,224,094 | |
| 6 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
2,131,527 | $951,812,064 | |
| 7 | RVMD |
Revolution Medicines, Inc.
|
9,766,496 | $949,791,733 | |
| 8 | MIRM |
Mirum Pharmaceuticals, Inc.
This page
|
6,945,813 | $641,654,204 |
All Filings in MIRM
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13 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $641,654,204 | 6,945,813 | Shares | Defined | 2026-05-18 | |
| 2025-12-31 | $479,098,677 | 6,065,308 | Shares | Defined | 2026-02-17 | |
| 2025-09-30 | $366,373,028 | 4,997,586 | Shares | Defined | 2025-11-14 | |
| 2025-06-30 | $266,474,135 | 5,236,277 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $214,713,209 | 4,766,109 | Shares | Defined | 2025-05-15 | |
| 2024-12-31 | $189,450,895 | 4,581,642 | Shares | Defined | 2025-02-14 | |
| 2024-09-30 | $174,731,076 | 4,480,284 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $170,565,258 | 4,988,747 | Shares | Defined | 2024-08-14 | |
| 2024-03-31 | $69,512,313 | 2,767,210 | Shares | Defined | 2024-05-15 | |
| 2023-12-31 | $60,886,504 | 2,062,551 | Shares | Defined | 2024-02-14 | |
| 2023-09-30 | $60,790,815 | 1,923,760 | Shares | Defined | 2023-11-14 | |
| 2023-06-30 | $6,871,382 | 265,612 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $991,640 | 41,284 | Shares | Defined | 2023-05-15 | |
| No filing history on record for this holder in this stock. | ||||||