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AC Immune S.A.

ACIU
Healthcare|Biotechnology|CH
$2.23
+0.12 (+5.69%)
Tangible Book / Share
$0.27
Cash / Share
$0.74

Ownership Breakdown

61.5%
Float
101.8M
Shares Outstanding
62.6M
Float Shares

Major Holders (11)

Combined: 123.1%

Holders of 5%+ from their latest Schedule 13D/13G filing in the last two years. Percentages are as of each filing date.

HolderType% of ClassSharesFiledFiling
BVF Partners L.P.IA, PN19.70%19,522,436Nov 14, 202413D/G
BVF Inc.Corporation19.70%19,522,436Nov 14, 202413D/G
Mark N. LampertIndividual19.70%19,522,436Nov 14, 202413D/G
BVF GP Holdings LLCOther18.50%18,349,296Nov 14, 202413D/G
Biotechnology Value Fund, L.P.Partnership10.40%10,289,053Nov 14, 202413D/G
BVF I GP LLCOther10.40%10,289,053Nov 14, 202413D/G
Biotechnology Value Trading Fund II, L.P.Partnership8.10%8,060,243Nov 14, 202413D/G
BVF II GP LLCOther8.10%8,060,243Nov 14, 202413D/G
Affiris AG in LiquCorporation6.50%6,428,100Dec 13, 202413D/G
BVF Partners OS Ltd.Corporation1.00%837,251Nov 14, 202413D/G
Biotechnology Value Trading Fund OS LPPartnership1.00%837,251Nov 14, 202413D/G

Insider Trades (70)

Last 4 quarters: 336,703 acquired · 30,000 disposed
InsiderPositionDateTypeSharesPriceValueFiling
Graney ThomasdirectorOct 2, 2026OTHER0——Form 4
Graney ThomasdirectorJun 10, 2027OTHER19,565$2.71$53.0KForm 4
Graney ThomasdirectorOct 2, 2026OTHER0——Form 4
Graney ThomasdirectorJun 10, 2027OTHER19,565$2.71$53.0KForm 4
Twyman Roy ErvindirectorJun 11, 2026AWARD16,568——Form 4
Twyman Roy ErvindirectorJun 11, 2026AWARD38,889$2.62$101.9KForm 4
AGUIAR-LUCANDER RENEEdirectorJun 11, 2026AWARD16,568——Form 4
AGUIAR-LUCANDER RENEEdirectorJun 11, 2026AWARD38,889$2.62$101.9KForm 4
Zuegel Martindirector, officer: Interim CEOJun 11, 2026AWARD77,778$2.62$203.8KForm 4
Zuegel Martindirector, officer: Interim CEOJun 11, 2026AWARD33,136——Form 4
Buetler MonikadirectorJun 11, 2026AWARD17,751——Form 4
Buetler MonikadirectorJun 11, 2026AWARD41,667$2.62$109.2KForm 4
June Carl HowarddirectorJun 11, 2026AWARD16,568——Form 4
June Carl HowarddirectorJun 11, 2026AWARD38,889$2.62$101.9KForm 4
Pfeifer Andreadirector, officer: Chief Executive OfficerMay 15, 2026SELL10,000$2.79$27.9KForm 4
Pfeifer Andreadirector, officer: Chief Executive OfficerApr 15, 2026SELL10,000$3.14$31.4KForm 4
Pfeifer Andreadirector, officer: Chief Executive OfficerApr 15, 2026BUY10,000$3.14$31.4KForm 4
Zuegel MartindirectorMar 18, 2026OTHER0——Form 4
Zuegel MartindirectorMar 18, 2026OTHER32,061$1.84$59.0KForm 4
Donati PiergiorgioChief Operating OfficerMar 20, 2026OTHER0——Form 4
Donati PiergiorgioChief Operating OfficerMar 20, 2026OTHER7,200$9.50$68.4KForm 4
Donati PiergiorgioChief Operating OfficerMar 20, 2026OTHER41,322$5.39$222.7KForm 4
Donati PiergiorgioChief Operating OfficerMar 20, 2026OTHER34,562$6.95$240.2KForm 4
Donati PiergiorgioChief Operating OfficerMar 20, 2026OTHER28,463$7.23$205.8KForm 4
Donati PiergiorgioChief Operating OfficerMar 20, 2026OTHER22,050$3.15$69.5KForm 4
Donati PiergiorgioChief Operating OfficerMar 20, 2026OTHER66,667$2.03$135.3KForm 4
Donati PiergiorgioChief Operating OfficerMar 20, 2026OTHER27,607$3.99$110.2KForm 4
Donati PiergiorgioChief Operating OfficerMar 20, 2026OTHER61,538$2.91$179.1KForm 4
Donati PiergiorgioChief Operating OfficerMar 20, 2026OTHER89,552$3.03$271.3KForm 4
Roberts Christopher JamesChief Financial OfficerMar 18, 2026OTHER0——Form 4
Roberts Christopher JamesChief Financial OfficerMar 18, 2026OTHER7,200$5.15$37.1KForm 4
Roberts Christopher JamesChief Financial OfficerMar 18, 2026OTHER7,200$6.30$45.4KForm 4
Roberts Christopher JamesChief Financial OfficerMar 18, 2026OTHER7,200$6.88$49.5KForm 4
Roberts Christopher JamesChief Financial OfficerMar 18, 2026OTHER7,200$2.76$19.9KForm 4
Roberts Christopher JamesChief Financial OfficerMar 18, 2026OTHER29,126$2.32$67.6KForm 4
Roberts Christopher JamesChief Financial OfficerMar 18, 2026OTHER55,215$3.99$220.3KForm 4
Roberts Christopher JamesChief Financial OfficerMar 18, 2026OTHER92,308$2.91$268.6KForm 4
Roberts Christopher JamesChief Financial OfficerMar 18, 2026OTHER89,552$3.03$271.3KForm 4
Buetler MonikadirectorMar 18, 2026OTHER0——Form 4
Buetler MonikadirectorMar 18, 2026OTHER14,310$5.31$76.0KForm 4
Buetler MonikadirectorMar 18, 2026OTHER56,204$3.15$177.0KForm 4
Buetler MonikadirectorMar 18, 2026OTHER39,823$2.15$85.6KForm 4
Buetler MonikadirectorMar 18, 2026OTHER15,501$4.23$65.6KForm 4
Buetler MonikadirectorMar 18, 2026OTHER46,392$1.84$85.4KForm 4
Twyman Roy ErvindirectorMar 18, 2026OTHER0——Form 4
Twyman Roy ErvindirectorMar 18, 2026OTHER36,932$5.39$199.1KForm 4
Twyman Roy ErvindirectorMar 18, 2026OTHER15,714$6.95$109.2KForm 4
Twyman Roy ErvindirectorMar 18, 2026OTHER12,865$7.23$93.0KForm 4
Twyman Roy ErvindirectorMar 18, 2026OTHER23,204$3.15$73.1KForm 4
Twyman Roy ErvindirectorMar 18, 2026OTHER37,168$2.15$79.9KForm 4
Twyman Roy ErvindirectorMar 18, 2026OTHER14,094$4.23$59.6KForm 4
Twyman Roy ErvindirectorMar 18, 2026OTHER43,299$1.84$79.7KForm 4
AGUIAR-LUCANDER RENEEdirectorMar 18, 2026OTHER0——Form 4
AGUIAR-LUCANDER RENEEdirectorMar 18, 2026OTHER32,061$1.84$59.0KForm 4
Pfeifer Andreadirector, officer: Chief Executive OfficerMar 18, 2026OTHER0——Form 4
Pfeifer Andreadirector, officer: Chief Executive OfficerMar 18, 2026OTHER0——Form 4
Pfeifer Andreadirector, officer: Chief Executive OfficerMar 18, 2026OTHER102,811$9.53$979.8KForm 4
Pfeifer Andreadirector, officer: Chief Executive OfficerMar 18, 2026OTHER132,075$8.51$1.1MForm 4
Pfeifer Andreadirector, officer: Chief Executive OfficerMar 18, 2026OTHER132,837$5.39$716.0KForm 4
Pfeifer Andreadirector, officer: Chief Executive OfficerMar 18, 2026OTHER174,251$6.95$1.2MForm 4
Pfeifer Andreadirector, officer: Chief Executive OfficerMar 18, 2026OTHER218,216$7.23$1.6MForm 4
Pfeifer Andreadirector, officer: Chief Executive OfficerMar 18, 2026OTHER172,500$3.15$543.4KForm 4
Pfeifer Andreadirector, officer: Chief Executive OfficerMar 18, 2026OTHER644,444$2.03$1.3MForm 4
June Carl HowarddirectorMar 18, 2026OTHER0——Form 4
June Carl HowarddirectorMar 18, 2026OTHER31,451$5.04$158.5KForm 4
June Carl HowarddirectorMar 18, 2026OTHER12,865$7.23$93.0KForm 4
June Carl HowarddirectorMar 18, 2026OTHER23,204$3.15$73.1KForm 4
June Carl HowarddirectorMar 18, 2026OTHER37,168$2.15$79.9KForm 4
June Carl HowarddirectorMar 18, 2026OTHER14,094$4.23$59.6KForm 4
June Carl HowarddirectorMar 18, 2026OTHER43,299$1.84$79.7KForm 4