C WorldWide Group Holding A/S KPTI — KARYOPHARM THERAPEUTICS INC

Ownership history in C WorldWide Group Holding A/S  ·  31 quarters on record

AI Ownership Summary

C WorldWide Group Holding A/S reported KARYOPHARM THERAPEUTICS INC (KPTI) in 31 quarterly 13F filings from 2024 Q1 through 2026 Q2. Peak portfolio weight reached 0.03% in 2024 Q1. The latest visible filing shows KPTI at 0.02% 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. Older history is available after unlock; the visible window still shows the most recent pattern.

What this KPTI ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was C WorldWide Group Holding A/S's position in KARYOPHARM THERAPEUTICS 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
2026 Q2

KPTI was reported at 0.02% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.03% in 2024 Q1

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

Time in book
Holding Window
2024 Q1 to 2026 Q2

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.

KPTI stock page C WorldWide Group Holding A/S fund profile C WorldWide Group Holding A/S full holdings
How C WorldWide Group Holding A/S held KPTI — position size vs. price
% of Fund (quarterly)    KPTI price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 10 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q2 UNCHANGED — — — 100,000 — 0% 0.02% $977 2026-08-04 $1.96
2026 Q1 UNCHANGED — — — 100,000 — 0% 0.01% $557 2026-05-06 $9.02
2025 Q4 UNCHANGED — — — 100,000 — 0% 0.01% $736K 2026-02-04 $6.30
2025 Q3 UNCHANGED — — — 100,000 — 0% 0.01% $654K 2025-11-05 $5.36
2025 Q2 UNCHANGED — — — 100,000 — 0% 0.01% $431K 2025-08-06 $4.03
2025 Q1 REDUCED 93.3% +15.2% ❌ 100,000 -1,400,000 -93.3% 0.00% $374K 2025-05-05 $7.09
2024 Q4 UNCHANGED — — — 1,500,000 — 0% 0.01% $1.0M 2025-02-04 $9.30
2024 Q3 UNCHANGED — — — 1,500,000 — 0% 0.01% $1.2M 2024-11-05 $12.69
2024 Q2 UNCHANGED — — — 1,500,000 — 0% 0.01% $1.3M 2024-07-31 $14.84
2024 Q1 UNCHANGED — — — 1,500,000 — 0% 0.03% $2.3M 2024-05-03 $16.95
21 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding KPTI

As of 2026 Q2 — sorted by position size

Kalehua Capital Management LLC 4.8% ACORN CAPITAL ADVISORS, LLC 4.05% Catalio Capital Management, LP 1.73% Avidity Partners Management LP 3Y 1.45% Tetragon Partners GP Ltd 3Y 7Y 0.39% NEA Management Company, LLC 3Y 7Y 0.35% SILVERARC CAPITAL MANAGEMENT, LLC 3Y 0.3% Boxer Capital Management, LLC 0.22% Birchview Capital, LP 3Y 7Y 0.2% RA CAPITAL MANAGEMENT, L.P. 3Y 7Y 0.16%

FAQ About C WorldWide Group Holding A/S and KPTI

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

How long has C WorldWide Group Holding A/S reported owning KPTI?

C WorldWide Group Holding A/S reported KPTI across 10 quarterly 13F filings, from 2024 Q1 through 2026 Q2.

What was the largest reported KPTI position in C WorldWide Group Holding A/S's portfolio?

The largest reported portfolio weight for KPTI was 0.03% in 2024 Q1.

What is the latest reported KPTI position on this page?

The most recent filing on this page is 2026 Q2, when C WorldWide Group Holding A/S reported 100,000 shares, equal to 0.02% of portfolio, with an estimated market value of $977.

What does the chart on this KPTI ownership page compare?

The chart compares C WorldWide Group Holding A/S's quarterly KPTI 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.

How well did C WorldWide Group Holding A/S time their KPTI position?

Based on 13F filing dates vs. subsequent KPTI price moves, C WorldWide Group Holding A/S correctly timed 3 out of 11 reported position changes (27%). The annualised alpha on KPTI relative to SPY over the holding period was -45.7%.

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