Apellis Pharmaceuticals, Inc.
US ˙ NasdaqGS ˙ US03753U1060
DIESES SYMBOL IST NICHT MEHR AKTIV

SecurityAPLS / Apellis Pharmaceuticals, Inc.
InstitutionEngineers Gate Manager LP
Latest Disclosed Ownership19,197 shares
Latest Disclosed Value $ 772,295
Engineers Gate Manager LP ownership in APLS / Apellis Pharmaceuticals, Inc.

On May 15, 2026 - Engineers Gate Manager LP filed a 13F-HR form disclosing ownership of 19,197 shares of Apellis Pharmaceuticals, Inc. (US:APLS) valued at $772,295 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 0 shares of Apellis Pharmaceuticals, Inc.. The current value of the position is $787,653 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 19,197 19,197 772 0.0097
2026-02-17 2025-12-31 13F APELLIS PHARMACEUTICALS COM 03753U106 0 -66,336 -100.00 0 -100.00
2025-11-14 2025-09-30 13F APELLIS PHARMACEUTICALS COM 03753U106 66,336 7,618 12.97 1,501 47.74 0.0172
2025-08-14 2025-06-30 13F APELLIS PHARMACEUTICALS COM 03753U106 58,718 16,546 39.23 1,016 10.20 0.0126
2025-05-15 2025-03-31 13F APELLIS PHARMACEUTICALS COM 03753U106 42,172 42,172 922 0.0155
2025-02-14 2024-12-31 13F APELLIS PHARMACEUTICALS COM 03753U106 0 -67,625 -100.00 0 -100.00
2024-11-14 2024-09-30 13F APELLIS PHARMACEUTICALS COM 03753U106 67,625 55,456 455.72 1,950 318.45 0.0381
2024-08-14 2024-06-30 13F APELLIS PHARMACEUTICALS COM 03753U106 12,169 6,120 101.17 467 31.27 0.0105
2024-05-15 2024-03-31 13F APELLIS PHARMACEUTICALS COM 03753U106 6,049 2,221 58.02 356 55.02 0.0094
2024-02-14 2023-12-31 13F APELLIS PHARMACEUTICALS COM 03753U106 3,828 -22,533 -85.48 229 -77.15 0.0065
2023-11-14 2023-09-30 13F APELLIS PHARMACEUTICALS COM 03753U106 26,361 22,846 649.96 1,003 213.13 0.0371
2023-08-14 2023-06-30 13F APELLIS PHARMACEUTICALS COM 03753U106 3,515 3,515 320 0.0121
2022-08-15 2022-06-30 13F APELLIS PHARMACEUTICALS COM 03753U106 0 -10,678 -100.00 0 -100.00
2022-05-16 2022-03-31 13F APELLIS PHARMACEUTICALS COM 03753U106 10,678 10,678 543 0.0212
2021-08-16 2021-06-30 13F APELLIS PHARMACEUTICALS COM 03753U106 0 -7,530 -100.00 0 -100.00
2021-05-17 2021-03-31 13F APELLIS PHARMACEUTICALS COM 03753U106 7,530 -1,760 -18.95 323 -39.17 0.0160
2021-02-16 2020-12-31 13F APELLIS PHARMACEUTICALS COM 03753U106 9,290 9,290 531 0.0230
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.