AC 면역 SA
US ˙ NasdaqGM ˙ CH0329023102

SecurityACIU / AC Immune SA
InstitutionBvf Inc/il
Latest Disclosed Ownership19,822,436 shares
Latest Disclosed Value $ 54,511,699
Bvf Inc/il ownership in ACIU / AC Immune SA

On May 15, 2026 - Bvf Inc/il filed a 13F-HR form disclosing ownership of 19,822,436 shares of AC Immune SA (US:ACIU) valued at $54,511,699 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 19,822,436 shares of AC Immune SA. This represents a change in shares of 0.00% during the quarter. The current value of the position is $44,600,481 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 AC IMMUNE SHS H00263105 19,822,436 0 0.00 54,512 -12.42 1.7366
2026-02-17 2025-12-31 13F AC IMMUNE SHS H00263105 19,822,436 0 0.00 62,242 8.65 2.0952
2025-11-14 2025-09-30 13F AC IMMUNE SHS H00263105 19,822,436 0 0.00 57,287 42.36 2.3222
2025-08-14 2025-06-30 13F AC IMMUNE SHS H00263105 19,822,436 0 0.00 40,240 8.56 1.4376
2025-05-15 2025-03-31 13F AC IMMUNE SHS H00263105 19,822,436 300,000 1.54 37,068 -29.68 1.5108
2025-02-14 2024-12-31 13F AC IMMUNE SHS H00263105 19,522,436 0 0.00 52,711 -28.57 1.7864
2024-11-14 2024-09-30 13F AC IMMUNE SHS H00263105 19,522,436 687,500 3.65 73,795 -1.81 2.1588
2024-08-14 2024-06-30 13F AC IMMUNE SHS H00263105 18,834,936 4,263,700 29.26 75,151 74.24 2.1063
2024-05-15 2024-03-31 13F AC IMMUNE SHS H00263105 14,571,236 0 0.00 43,131 -40.80 1.1858
2024-02-14 2023-12-31 13F AC IMMUNE SHS H00263105 14,571,236 7,142,857 96.16 72,856 244.15 1.8233
2023-11-14 2023-09-30 13F AC IMMUNE SHS H00263105 7,428,379 0 0.00 21,171 -3.55 0.5709
2023-08-14 2023-06-30 13F AC IMMUNE SHS H00263105 7,428,379 0 0.00 21,951 26.28 0.6118
2023-05-15 2023-03-31 13F AC IMMUNE SHS H00263105 7,428,379 0 0.00 17,382 14.71 0.6354
2023-02-14 2022-12-31 13F AC IMMUNE SHS H00263105 7,428,379 0 0.00 15,154 -35.45 0.6395
2022-11-14 2022-09-30 13F AC IMMUNE SHS H00263105 7,428,379 0 0.00 23,474 -12.46 0.9697
2022-08-15 2022-06-30 13F AC IMMUNE SHS H00263105 7,428,379 0 0.00 26,816 -9.75 1.2951
2022-05-16 2022-03-31 13F AC IMMUNE SHS H00263105 7,428,379 366,000 5.18 29,714 -15.00 1.1886
2022-02-14 2021-12-31 13F AC IMMUNE SHS H00263105 7,062,379 127,200 1.83 34,959 -24.88 1.2689
2021-11-15 2021-09-30 13F AC IMMUNE SHS H00263105 6,935,179 -1,610,000 -18.84 46,535 -31.33 1.8156
2021-08-16 2021-06-30 13F AC IMMUNE SHS H00263105 8,545,179 1,040,600 13.87 67,763 18.65 2.5397
2021-05-17 2021-03-31 13F AC IMMUNE SHS H00263105 7,504,579 -2,312,079 -23.55 57,110 12.53 2.1411
2021-02-12 2020-12-31 13F AC IMMUNE SHS H00263105 9,816,658 -2,100 -0.02 50,752 5.92 1.9966
2020-11-13 2020-09-30 13F AC IMMUNE SHS H00263105 9,818,758 -1,500,000 -13.25 47,916 -37.10 2.6096
2020-08-14 2020-06-30 13F AC IMMUNE SHS H00263105 11,318,758 -23,747 -0.21 76,175 -2.81 4.6965
2020-05-15 2020-03-31 13F AC IMMUNE SHS H00263105 11,342,505 0 0.00 78,377 -18.90 7.3051
2020-02-14 2019-12-31 13F AC IMMUNE SHS H00263105 11,342,505 44,594 0.39 96,638 72.80 7.3268
2019-11-14 2019-09-30 13F AC IMMUNE SHS H00263105 11,297,911 1,478,477 15.06 55,925 2.62 5.8758
2019-08-14 2019-06-30 13F AC IMMUNE SHS H00263105 9,819,434 2,363,900 31.71 54,498 44.75 5.9521
2019-05-15 2019-03-31 13F AC IMMUNE SHS H00263105 7,455,534 5,225,507 234.32 37,650 78.66 4.2158
2019-02-14 2018-12-31 13F AC IMMUNE SHS H00263105 2,230,027 212,527 10.53 21,074 30.57 2.7541
2018-11-14 2018-09-30 13F AC IMMUNE SHS H00263105 2,017,500 2,017,500 16,140 1.4183
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.