Apellis Pharmaceuticals, Inc.
US ˙ NasdaqGS ˙ US03753U1060
DETTE SYMBOL ER IKKE LÆNGERE AKTIVT

SecurityAPLS / Apellis Pharmaceuticals, Inc.
InstitutionTrexquant Investment LP
Latest Disclosed Ownership205,219 shares
Latest Disclosed Value $ 8,255,960
Trexquant Investment LP reports 5.46% increase in ownership of APLS / Apellis Pharmaceuticals, Inc.

On May 15, 2026 - Trexquant Investment LP filed a 13F-HR form disclosing ownership of 205,219 shares of Apellis Pharmaceuticals, Inc. (US:APLS) valued at $8,255,960 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 194,592 shares of Apellis Pharmaceuticals, Inc.. This represents a change in shares of 5.46% during the quarter. The current value of the position is $8,420,136 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F APELLIS PHARMACEUTICALS COM 03753U106 205,219 10,627 5.46 8,256 68.88 0.0593
2026-02-17 2025-12-31 13F APELLIS PHARMACEUTICALS COM 03753U106 194,592 -392,347 -66.85 4,888 -63.20 0.0436
2025-11-14 2025-09-30 13F APELLIS PHARMACEUTICALS COM 03753U106 586,939 259,518 79.26 13,282 134.37 0.1367
2025-08-12 2025-06-30 13F APELLIS PHARMACEUTICALS COM 03753U106 327,421 -57,501 -14.94 5,668 -32.68 0.0639
2025-05-14 2025-03-31 13F APELLIS PHARMACEUTICALS COM 03753U106 384,922 181,914 89.61 8,418 29.97 0.0979
2025-02-12 2024-12-31 13F APELLIS PHARMACEUTICALS COM 03753U106 203,008 203,008 6,478 0.0755
2024-11-12 2024-09-30 13F APELLIS PHARMACEUTICALS COM 03753U106 0 -149,160 -100.00 0 -100.00
2024-08-13 2024-06-30 13F APELLIS PHARMACEUTICALS COM 03753U106 149,160 149,160 5,722 0.0873
2023-11-13 2023-09-30 13F APELLIS PHARMACEUTICALS COM 03753U106 0 -51,988 -100.00 0 -100.00
2023-08-11 2023-06-30 13F APELLIS PHARMACEUTICALS COM 03753U106 51,988 51,988 4,736 0.1241
2022-11-14 2022-09-30 13F APELLIS PHARMACEUTICALS COM 03753U106 0 -9,750 -100.00 0 -100.00
2022-08-11 2022-06-30 13F APELLIS PHARMACEUTICALS COM 03753U106 9,750 9,750 441 0.0198
2021-11-12 2021-09-30 13F APELLIS PHARMACEUTICALS COM 03753U106 0 -10,262 -100.00 0 -100.00
2021-08-12 2021-06-30 13F APELLIS PHARMACEUTICALS COM 03753U106 10,262 5,212 103.21 649 199.08 0.0548
2021-05-13 2021-03-31 13F APELLIS PHARMACEUTICALS COM 03753U106 5,050 5,050 217 0.0199
2020-11-06 2020-09-30 13F APELLIS PHARMACEUTICALS COM 03753U106 0 -17,189 -100.00 0 -100.00
2020-08-07 2020-06-30 13F APELLIS PHARMACEUTICALS COM 03753U106 17,189 8,559 99.18 561 142.86 0.0390
2020-05-08 2020-03-31 13F APELLIS PHARMACEUTICALS COM 03753U106 8,630 8,630 231 0.0168
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.