Position in XENE
as of Mar 31, 2026
· filed May 14, 2026
Position Value
$32,848,760
+$5,417,487 QoQ
Shares Held
564,897
-7.7% QoQ
Ownership
0.584%
of shares outstanding
% of Portfolio
0.05%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Dec 2022
14 quarters on record
Voting authority
Sole 98.17559661318789.ToString("F0")%
Shared 0.ToString("F0")%
None 1.8244033868121092.ToString("F0")%
Common Shares in XENE Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026LOOMIS SAYLES & CO L P holds $4,075,180,510 across 25 Biotechnology names. XENE ranks #12 (0.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
4,003,821 | $1,787,866,229 | |
| 2 | REGN |
Regeneron Pharmaceuticals, Inc.
|
1,912,310 | $1,477,527,197 | |
| 3 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
512,097 | $169,437,533 | |
| 4 | LGND |
Ligand Pharmaceuticals Inc
|
353,209 | $70,518,176 | |
| 5 | CRSP |
CRISPR Therapeutics AG
|
968,135 | $46,054,181 | |
| 6 | MIRM |
Mirum Pharmaceuticals, Inc.
|
475,324 | $43,910,430 | |
| 7 | AXSM |
Axsome Therapeutics, Inc.
|
256,625 | $43,374,756 | |
| 8 | RYTM |
Rhythm Pharmaceuticals, Inc.
|
465,102 | $40,449,920 |
All Filings in XENE
Export CSV
14 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $32,848,760 | 564,897 | Shares | Defined | 2026-05-14 | |
| 2025-12-31 | $27,431,273 | 612,032 | Shares | Defined | 2026-02-12 | |
| 2025-09-30 | $25,721,133 | 640,626 | Shares | Defined | 2025-11-13 | |
| 2025-06-30 | $20,569,264 | 657,165 | Shares | Defined | 2025-08-13 | |
| 2025-03-31 | $22,579,519 | 673,011 | Shares | Defined | 2025-05-14 | |
| 2024-12-31 | $26,936,083 | 687,145 | Shares | Defined | 2025-02-12 | |
| 2024-09-30 | $27,843,329 | 707,222 | Shares | Defined | 2024-11-13 | |
| 2024-06-30 | $25,743,458 | 660,258 | Shares | Defined | 2024-08-13 | |
| 2024-03-31 | $29,554,254 | 686,510 | Shares | Defined | 2024-05-14 | |
| 2023-12-31 | $32,624,067 | 708,295 | Shares | Defined | 2024-02-13 | |
| 2023-09-30 | $24,961,258 | 730,716 | Shares | Defined | 2023-11-09 | |
| 2023-06-30 | $29,010,751 | 753,526 | Shares | Defined | 2023-08-11 | |
| 2023-03-31 | $27,220,692 | 760,567 | Shares | Defined | 2023-05-15 | |
| 2022-12-31 | $26,700,615 | 677,165 | Shares | Defined | 2023-02-10 | |
| No filing history on record for this holder in this stock. | ||||||