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MPM BIOIMPACT LLC

Position in XENE — Xenon Pharmaceuticals Inc.

CIK 1687078 BOSTON, MA

Position in XENE

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$34,233,253
+$12,467,765 QoQ
Shares Held
588,706
+21.2% QoQ
Ownership
0.609%
of shares outstanding
% of Portfolio
2.64%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Sep 2024
7 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in XENE Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Mar 31, 2026

MPM BIOIMPACT LLC holds $1,223,258,298 across 39 Biotechnology names. XENE ranks #11 (2.8% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in XENE

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7 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $34,233,253 588,706
2025-12-31 $21,765,488 485,620
2025-09-30 $20,211,429 503,398
2025-06-30 $10,122,357 323,398
2025-03-31 $10,179,002 303,398
2024-12-31 $7,730,710 197,212
2024-09-30 $6,527,546 165,800