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LOOMIS SAYLES & CO L P

Position in XENE — Xenon Pharmaceuticals Inc.

CIK 312348 BOSTON, MA

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, 2026

LOOMIS 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

All Filings in XENE

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14 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $32,848,760 564,897
2025-12-31 $27,431,273 612,032
2025-09-30 $25,721,133 640,626
2025-06-30 $20,569,264 657,165
2025-03-31 $22,579,519 673,011
2024-12-31 $26,936,083 687,145
2024-09-30 $27,843,329 707,222
2024-06-30 $25,743,458 660,258
2024-03-31 $29,554,254 686,510
2023-12-31 $32,624,067 708,295
2023-09-30 $24,961,258 730,716
2023-06-30 $29,010,751 753,526
2023-03-31 $27,220,692 760,567
2022-12-31 $26,700,615 677,165