683 Capital Management, LLC APLS — APELLIS PHARMACEUTICALS INC

Ownership history in 683 Capital Management, LLC  ·  20 quarters on record

AI Ownership Summary

683 Capital Management, LLC reported APELLIS PHARMACEUTICALS INC (APLS) in 20 quarterly 13F filings from 2023 Q4 through 2026 Q1. Peak portfolio weight reached 0.92% in 2024 Q1. The latest visible filing shows APLS at 0.52% 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 APLS ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was 683 Capital Management, LLC's position in APELLIS 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
2026 Q1

APLS was reported at 0.52% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
0.92% 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
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.

APLS stock page 683 Capital Management, LLC fund profile 683 Capital Management, LLC full holdings
How 683 Capital Management, LLC held APLS — position size vs. price
% of Fund (quarterly)    APLS price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 14 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 REDUCED — — — 250,000 -80,000 -24.2% 0.52% $10.1M 2026-05-15 $41.03
2025 Q4 ADDED — — — 330,000 +42,000 +14.6% 0.36% $8.3M 2026-02-17 $21.57
2025 Q3 REDUCED 29.8% +11.2% ❌ 288,000 -122,000 -29.8% 0.34% $6.5M 2025-11-14 $20.33
2025 Q2 ADDED — — — 410,000 +77,000 +23.1% 0.47% $7.1M 2025-08-14 $27.62
2025 Q1 REDUCED 7.5% -20.9% ✅ 333,000 -27,000 -7.5% 0.50% $7.3M 2025-05-15 $16.36
2024 Q4 ADDED — — — 360,000 +288,500 +403.5% 0.71% $11.5M 2025-02-14 $27.40
2024 Q4 REDUCED 64.2% -31.5% ✅ 71,500 -128,500 -64.2% 0.14% $2.3M 2025-02-14 $27.40
2024 Q3 REDUCED 14.9% +10.6% ❌ 200,000 -35,000 -14.9% 0.44% $5.8M 2024-11-14 $28.06
2024 Q3 ADDED — — — 235,000 +35,000 +17.5% 0.52% $6.8M 2024-11-14 $28.06
2024 Q2 ADDED — — — 200,000 +14,000 +7.5% 0.58% $7.7M 2024-08-14 $36.02
2024 Q2 REDUCED 13.5% -24.8% ✅ 186,000 -29,000 -13.5% 0.54% $7.1M 2024-08-14 $36.02
2024 Q1 ADDED — — — 215,000 +85,000 +65.4% 0.92% $12.6M 2024-05-15 $41.92
2023 Q4 REDUCED 25.7% -0.2% ✅ 130,000 -45,000 -25.7% 0.64% $7.8M 2024-02-14 $67.39
2023 Q4 REDUCED 27.1% -0.2% ✅ 175,000 -65,000 -27.1% 0.86% $10.5M 2024-02-14 $67.39
6 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding APLS

As of 2026 Q1 — sorted by position size

One68 Global Capital, LLC 3Y 7Y 7.21% Versor Investments LP 3Y 7Y 5.04% Avoro Capital Advisors LLC 3Y 7Y 4.84% Chicago Capital Management, LLC 3Y 7Y 4.77% SUVRETTA CAPITAL MANAGEMENT, LLC 3Y 7Y 3.62% Kryger Capital LLC 3.13% Deep Track Capital, LP 3Y 2.98% Twin Securities, Inc. 3Y 7Y 2.49% TIG Advisors, LLC 3Y 7Y 2.33% Beck Bode, LLC 3Y 2.13%

FAQ About 683 Capital Management, LLC and APLS

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

How long has 683 Capital Management, LLC reported owning APLS?

683 Capital Management, LLC reported APLS across 14 quarterly 13F filings, from 2023 Q4 through 2026 Q1.

What was the largest reported APLS position in 683 Capital Management, LLC's portfolio?

The largest reported portfolio weight for APLS was 0.92% in 2024 Q1.

What is the latest reported APLS position on this page?

The most recent filing on this page is 2026 Q1, when 683 Capital Management, LLC reported 250,000 shares, equal to 0.52% of portfolio, with an estimated market value of $10.1M.

What does the chart on this APLS ownership page compare?

The chart compares 683 Capital Management, LLC's quarterly APLS 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 683 Capital Management, LLC time their APLS position?

Based on 13F filing dates vs. subsequent APLS price moves, 683 Capital Management, LLC correctly timed 8 out of 19 reported position changes (42%). The annualised alpha on APLS relative to SPY over the holding period was -23.2%.

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