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AC Immune S.A. (ACIU)

AC Immune S.A. at a glance — key fundamentals, SEC filings, insider buying and selling, and earnings dates.

AC Immune S.A. (ACIU) is a Biotechnology company based in CH with a market capitalization of $281.4M. Revenue declined 86.9% year-over-year and free cash flow was negative at -$67M. This page tracks ACIU's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.

CH · 133 employees · IPO Sep 23, 2016

Valuation

Valuation & price

$2.95 · as of May 26, 2026 · -26.1% vs 52w high

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P/E ratio

Latest-FY diluted EPS

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P/B ratio

Market cap ÷ book equity

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Dividend yield

Price — last 12 months

$3.84$2.92$1.99Jul 25Dec 25Jul 26Jul 7, 25$1.99Jul 9, 25$2.08Jul 11, 25$2.04Jul 15, 25$2.05Jul 17, 25$2.07Jul 21, 25$2.08Jul 23, 25$2.34Jul 25, 25$2.43Jul 29, 25$2.35Jul 31, 25$2.16Aug 4, 25$2.19Aug 6, 25$2.17Aug 11, 25$2.07Aug 13, 25$2.20Aug 15, 25$2.13Aug 19, 25$2.05Aug 21, 25$2.10Aug 25, 25$2.07Aug 27, 25$2.07Aug 29, 25$2.04Sep 3, 25$2.26Sep 5, 25$2.28Sep 9, 25$2.20Sep 11, 25$2.38Sep 16, 25$2.54Sep 18, 25$2.52Sep 22, 25$2.53Sep 24, 25$2.73Sep 26, 25$2.84Sep 30, 25$2.89Oct 2, 25$3.13Oct 6, 25$3.54Oct 8, 25$3.52Oct 10, 25$3.55Oct 14, 25$3.07Oct 16, 25$2.96Oct 21, 25$2.79Oct 23, 25$2.81Oct 27, 25$3.59Oct 29, 25$3.84Oct 31, 25$3.38Nov 4, 25$3.30Nov 6, 25$3.45Nov 10, 25$3.35Nov 12, 25$3.28Nov 14, 25$3.29Nov 18, 25$3.05Nov 20, 25$2.91Nov 25, 25$2.90Nov 28, 25$2.99Dec 2, 25$2.77Dec 4, 25$2.88Dec 8, 25$2.78Dec 10, 25$2.79Dec 12, 25$3.15Dec 16, 25$3.29Dec 18, 25$2.95Dec 22, 25$3.18Dec 24, 25$3.13Dec 29, 25$3.25Jan 2, 26$3.36Jan 6, 26$3.43Jan 8, 26$3.44Jan 12, 26$3.52Jan 14, 26$3.67Jan 16, 26$3.51Jan 21, 26$3.40Jan 23, 26$3.70Jan 27, 26$3.54Jan 29, 26$3.40Feb 2, 26$3.27Feb 4, 26$3.06Feb 9, 26$3.11Feb 11, 26$3.03Feb 13, 26$2.99Feb 18, 26$2.62Feb 20, 26$2.52Feb 24, 26$2.72Feb 26, 26$2.96Mar 2, 26$2.88Mar 4, 26$2.84Mar 6, 26$2.79Mar 10, 26$3.04Mar 12, 26$3.00Mar 17, 26$3.32Mar 19, 26$2.95Mar 23, 26$2.88Mar 25, 26$2.94Mar 27, 26$2.70Mar 31, 26$2.75Apr 2, 26$2.76Apr 7, 26$3.11Apr 9, 26$3.40Apr 13, 26$3.30Apr 15, 26$3.14Apr 17, 26$3.01Apr 22, 26$3.06Apr 24, 26$2.84Apr 28, 26$3.03Apr 30, 26$3.03May 4, 26$3.05May 6, 26$2.97May 8, 26$2.86May 12, 26$2.77May 14, 26$2.80May 18, 26$2.77May 20, 26$2.89May 22, 26$2.83May 28, 26$2.75Jun 1, 26$2.46Jun 3, 26$2.39Jun 5, 26$2.25Jun 9, 26$2.26Jun 11, 26$2.26Jun 15, 26$2.34Jun 17, 26$2.34Jun 22, 26$2.50Jun 24, 26$2.54Jun 26, 26$2.56Jul 2, 26$2.51
$1.9952-week range$3.99
Loading valuation history…

Fundamentals

Key fundamentals

$281.4M

Market cap

-86.9%

Revenue growth (YoY)

100.0%

Gross margin

-$67M

Free cash flow (USD)

-$87M

Net debt

Net cash position

1.1%

Share dilution

1/5

Graham criteria passed

Defensive-investor screen

Healthcare

Sector

Trajectory

Long-term trends

Revenue by year

2016 → 2025

FY 2016$23.2MFY 2017$20.3MFY 2018$7.2MFY 2019$110.5MFY 2020$15.4MFY 2021$0.00FY 2022$3.9MFY 2023$14.8MFY 2024$27.3MFY 2025$3.6M
$23.2M$3.6M

Free cash flow by year

2016 → 2025

FY 2016$-6.5MFY 2017$-23.9MFY 2018$-45.9MFY 2019$53.3MFY 2020$-61.2MFY 2021$-68.3MFY 2022$-74.8MFY 2023$-61.2MFY 2024$65.3MFY 2025$-67.0M
-$6.5M-$67M

Gross margin by year

2022 → 2025

FY 2022100.0%FY 2023-268.9%FY 2024-129.1%FY 2025100.0%
100.0%100.0%

Value screen

Graham defensive-investor tests

Computing the scorecard — refreshing any stale inputs…

1

Insider buys · 90 days

2

Insider sells · 90 days

Earnings

Last report: 6-K filed Jun 30, 2026

Next expected: not yet scheduled

On the tape

Recent SEC & insider activity

  • Annual reportAnnual Report FiledJun 30, 2026Filing
  • 6-K filingResearch Grant AnnouncementJun 11, 2026Filing
  • Annual reportAnnual Report FiledJun 11, 2026Filing
  • Insider sellInsider Sell $28KPfeifer Andrea · Director, Chief Executive Officer · $27.9KMay 18, 2026Filing
  • Annual reportAnnual Report FiledMay 15, 2026Filing
  • Annual reportAnnual Report FiledMay 12, 2026Filing
  • 6-K filingPhase 1b/2 Trial UpdateApr 30, 2026Filing
  • Annual reportAnnual Report FiledApr 30, 2026Filing
  • Insider buyInsider Buy $31KPfeifer Andrea · Director, Chief Executive Officer · $31.4KApr 16, 2026Filing
  • Insider sellInsider Sell $31KPfeifer Andrea · Director, Chief Executive Officer · $31.4KApr 16, 2026Filing

Questions

Frequently asked questions

What is AC Immune S.A.'s market cap?

AC Immune S.A. (ACIU) has a market capitalization of $281.4M.

What is ACIU's P/E ratio?

A meaningful P/E ratio is not available for ACIU — the company's latest fiscal-year earnings per share is zero, negative, or not yet cached.

Are insiders buying ACIU stock?

Yes — SEC Form 4 filings show 1 open-market insider buy and 2 sells at AC Immune S.A. in the last 90 days.

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Timeline

Every filing, insider trade & earnings on a price-anchored timeline

Filing Analyzer

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News

Latest press coverage in one feed

Data: SEC EDGAR filings and cached fundamental data; prices and ratios use the most recent cached quote and statements (may lag by up to a day). Educational and research purposes only. Not investment advice.