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

SecurityAPLS / Apellis Pharmaceuticals, Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership1,338,995 shares
Latest Disclosed Value $ 53,745,011
Dimensional Fund Advisors Lp reports 640.08% increase in ownership of APLS / Apellis Pharmaceuticals, Inc.

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 1,338,995 shares of Apellis Pharmaceuticals, Inc. (US:APLS) valued at $53,867,769 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 180,925 shares of Apellis Pharmaceuticals, Inc.. This represents a change in shares of 640.08% during the quarter. The current value of the position is $54,938,965 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)
2026-05-07 2026-03-31 13F APELLIS PHARMACEUTICALS COM 03753U106 1,338,995 1,158,070 640.08 53,745 1,082.77 0.0024
2026-02-12 2025-12-31 13F APELLIS PHARMACEUTICALS COM 03753U106 180,925 162,235 868.03 4,545 976.78 0.0010
2025-11-12 2025-09-30 13F APELLIS PHARMACEUTICALS COM 03753U106 18,690 18,690 423 0.0001
2024-11-07 2024-09-30 13F APELLIS PHARMACEUTICALS COM 03753U106 0 -33,696 -100.00 0 -100.00
2024-08-09 2024-06-30 13F APELLIS PHARMACEUTICALS COM 03753U106 33,696 -34,448 -50.55 1,293 -67.74 0.0003
2024-05-10 2024-03-31 13F APELLIS PHARMACEUTICALS COM 03753U106 68,144 32,577 91.59 4,006 88.12 0.0011
2024-02-07 2023-12-31 13F APELLIS PHARMACEUTICALS COM 03753U106 35,567 9,500 36.44 2,129 114.83 0.0006
2023-11-09 2023-09-30 13F APELLIS PHARMACEUTICALS COM 03753U106 26,067 -105,720 -80.22 992 -91.74 0.0003
2023-08-09 2023-06-30 13F APELLIS PHARMACEUTICALS COM 03753U106 131,787 37,801 40.22 12,002 93.61 0.0038
2023-05-12 2023-03-31 13F APELLIS PHARMACEUTICALS COM 03753U106 93,986 52,979 129.20 6,199 309,850.00 0.0021
2023-02-09 2022-12-31 13F APELLIS PHARMACEUTICALS COM 03753U106 41,007 -41,587 -50.35 2 -99.96 0.0006
2022-11-10 2022-09-30 13F APELLIS PHARMACEUTICALS COM 03753U106 82,594 82,594 5,641 0.0022
2022-05-13 2022-03-31 13F APELLIS PHARMACEUTICALS COM 03753U106 0 -9,828 -100.00 0 -100.00
2022-02-09 2021-12-31 13F APELLIS PHARMACEUTICALS COM 03753U106 9,828 -574 -5.52 465 35.57 0.0001
2021-11-12 2021-09-30 13F APELLIS PHARMACEUTICALS COM 03753U106 10,402 10,402 343 0.0001
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.