Ikarian Capital, LLC CLDX — CELLDEX THERAPEUTICS INC NEW

Ownership history in Ikarian Capital, LLC  ·  36 quarters on record

AI Ownership Summary

Ikarian Capital, LLC reported CELLDEX THERAPEUTICS INC NEW (CLDX) in 36 quarterly 13F filings from 2023 Q4 through 2026 Q1. Peak portfolio weight reached 1.45% in 2024 Q3. The latest visible filing shows CLDX at 0.29% 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 CLDX ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was Ikarian Capital, LLC's position in CELLDEX THERAPEUTICS INC NEW, 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 Q1

CLDX was reported at 0.29% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
1.45% in 2024 Q3

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

Time in book
Holding Window
2023 Q4 to 2026 Q1

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.

CLDX stock page Ikarian Capital, LLC fund profile Ikarian Capital, LLC full holdings
How Ikarian Capital, LLC held CLDX — position size vs. price
% of Fund (quarterly)    CLDX price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 8 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 REDUCED — — — 114,000 -347,247 -75.3% 0.29% $3.6M 2026-05-15 $31.34
2026 Q1 ADDED — — — 461,247 +443,447 +2491.3% 1.19% $14.6M 2026-05-15 $31.34
2025 Q1 UNCHANGED — — — 17,800 — 0% 0.04% $323K 2025-05-15 $20.10
2025 Q1 REDUCED 91.3% +12.1% ❌ 17,800 -187,700 -91.3% 0.04% $323K 2025-05-15 $20.10
2024 Q4 REDUCED 32.7% -28.2% ✅ 205,500 -100,000 -32.7% 0.71% $5.2M 2025-02-14 $22.70
2024 Q3 UNCHANGED — — — 305,500 — 0% 1.45% $10.4M 2024-11-14 $25.74
2024 Q3 ADDED — — — 305,500 +305,300 +152650.0% 1.45% $10.4M 2024-11-14 $25.74
2023 Q4 REDUCED 79.4% +5.0% ❌ 200 -771 -79.4% 0.00% $8K 2024-02-14 $36.26
28 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding CLDX

As of 2026 Q1 — sorted by position size

Kynam Capital Management, LP 3Y 11.43% Elmind Capital, LP 7.79% Commodore Capital LP 3Y 4.95% 5AM Venture Management, LLC 3Y 4.38% Rosalind Advisors, Inc. 4.21% SUPERSTRING CAPITAL MANAGEMENT LP 4.08% GordonMD Global Investments LP 3.76% Novo Holdings A/S 3Y 7Y 3.08% Eversept Partners, LP 3Y 7Y 2.99% TSP Capital Management Group, LLC 3Y 7Y 2.9%

FAQ About Ikarian Capital, LLC and CLDX

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

How long has Ikarian Capital, LLC reported owning CLDX?

Ikarian Capital, LLC reported CLDX across 8 quarterly 13F filings, from 2023 Q4 through 2026 Q1.

What was the largest reported CLDX position in Ikarian Capital, LLC's portfolio?

The largest reported portfolio weight for CLDX was 1.45% in 2024 Q3.

What is the latest reported CLDX position on this page?

The most recent filing on this page is 2026 Q1, when Ikarian Capital, LLC reported 114,000 shares, equal to 0.29% of portfolio, with an estimated market value of $3.6M.

What does the chart on this CLDX ownership page compare?

The chart compares Ikarian Capital, LLC's quarterly CLDX 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 Ikarian Capital, LLC time their CLDX position?

Based on 13F filing dates vs. subsequent CLDX price moves, Ikarian Capital, LLC correctly timed 17 out of 33 reported position changes (52%). The annualised alpha on CLDX relative to SPY over the holding period was +15.1%.

← Back to Ikarian Capital, LLC Holdings