EdgeMarket › Instruments › ACIU

ACIU — AC Immune SA

Name: ACIU — AC Immune SA market data and filings
Creator: EdgeMarket

US Healthcare Pharma & biotech equity mkt cap 268.6M

2.90 +9.85% today

USD · as of 2026-08-21

Price · 2024-08-26 → 2026-08-21

499 daily closes shown

52w low 2.04 · high 3.99

Anonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2016-09-23.

Performance

1 day+9.85%

1 week+16.47%

1 month+29.46%

3 months+1.75%

6 months+15.08%

Year to date-13.69%

1 year+35.51%

3 years-4.92%

5 years-56.33%

Technicals

RSI 1480.9

vs 50-day avg+20.30%

vs 200-day avg+1.33%

Volatility 1y76.6%

Max drawdown 1y-46.87%

Avg volume 30d214.0K

Daily bars held2,491

History from2016-09-23

Others in Healthcare

LLY +0.9%AKTX +1.6%JNJ +1.1%ONC +1.5%ABBV +1.2%MRK +2.4%UNH +1.4%NVS +1.7%

Insider transactions (Form 4)

date	insider	what	shares	price	value
2026-06-11	June Carl Howard Director	Grant or award	16.6K	0.00	0
2026-06-11	Buetler Monika Director	Grant or award	17.8K	0.00	0
2026-06-11	Zuegel Martin Interim CEO	Grant or award	33.1K	0.00	0
2026-06-11	AGUIAR-LUCANDER RENEE Director	Grant or award	16.6K	0.00	0
2026-06-11	Twyman Roy Ervin Director	Grant or award	16.6K	0.00	0
2026-05-15	Pfeifer Andrea Chief Executive Officer	Open-market sale 10b5-1 plan	10.0K	2.79	27.9K
2026-04-15	Pfeifer Andrea Chief Executive Officer	Open-market purchase 10b5-1 plan	10.0K	3.14	31.4K
2026-04-15	Pfeifer Andrea Chief Executive Officer	Open-market sale 10b5-1 plan	10.0K	3.14	31.4K

Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →

Largest institutional holders

manager	value	shares
BVF INC/IL	54.5M	19.8M
WELLS FARGO & COMPANY/MN	2.8M	1.0M
MILLENNIUM MANAGEMENT LLC	2.2M	792.7K
RENAISSANCE TECHNOLOGIES LLC	1.7M	624.4K
BlackRock, Inc.	1.4M	524.3K
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	1.1M	405.7K
DIMENSIONAL FUND ADVISORS LP	1.1M	390.2K
NORTHERN TRUST CORP	765.9K	278.5K
CITADEL ADVISORS LLC	734.9K	267.2K
MARSHALL WACE, LLP	361.5K	131.5K

13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →

Short selling

Avg short volume, 90d56.0% of tape

Days observed61

This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →

Recent headlines

AC Immune gains on early-stage trial data for anti-inflammatory agent · 2026-08-20
Why is AC Immune stock gaining today? · 2026-08-11

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