XENE β€” XENON PHARMACEUTICALS INC

Ownership history in CenterBook Partners LP  Β·  4 quarters on record

AI Ownership Summary

CenterBook Partners LP reported XENON PHARMACEUTICALS INC (XENE) in 4 quarterly 13F filings from 2024 Q2 through 2025 Q3. Peak portfolio weight reached 0.07% in 2024 Q2. The latest visible filing shows XENE at 0.03% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings.

What this XENE ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was CenterBook Partners LP's position in XENON PHARMACEUTICALS INC, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2025 Q3

XENE was reported at 0.03% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.07% in 2024 Q2

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2024 Q2 to 2025 Q3

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

How CenterBook Partners LP held XENE β€” position size vs. price
% of Fund (quarterly)    XENE price (quarter-end, indexed to 100)
πŸ“‹ Quarterly Holdings History 4 quarters  β–Ύ
Quarter Action Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q3 REDUCED 14,770 -9,894 -40.1% 0.03% $593K 2025-11-07 $38.25
2025 Q2 ADDED 24,664 +2,453 +11.0% 0.04% $772K 2025-08-12 $35.99
2025 Q1 REDUCED 22,211 -6,942 -23.8% 0.05% $745K 2025-05-09 $35.02
2024 Q2 INITIATED 29,153 β€” β€” 0.07% $1.1M 2024-08-12 $38.85

FAQ About CenterBook Partners LP and XENE

These are the practical questions this page is built to answer before you even open the full history table.

How long has CenterBook Partners LP reported owning XENE?

CenterBook Partners LP reported XENE across 4 quarterly 13F filings, from 2024 Q2 through 2025 Q3.

What was the largest reported XENE position in CenterBook Partners LP's portfolio?

The largest reported portfolio weight for XENE was 0.07% in 2024 Q2.

What is the latest reported XENE position on this page?

The most recent filing on this page is 2025 Q3, when CenterBook Partners LP reported 14,770 shares, equal to 0.03% of portfolio, with an estimated market value of $593K.

What does the chart on this XENE ownership page compare?

The chart compares CenterBook Partners LP's quarterly XENE portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

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