Switzerland Pharmaceuticals

AC Immune SA (ACIU)

Track

Over the last 90 days, AC Immune SA has seen net insider selling totaling $27,935.00, primarily driven by the CEO. There were 3 transactions, all sales, with no reported insider purchases. This activity occurred against a backdrop of a 7.6% stock price decrease over the past 90 days.
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Ticker: ACIU Exchange: NMS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
Pfeifer Andrea
Chief Executive Officer
1 sale — total 27,935 USD
Sale 15 May 2026
Value US$2,810,207.62 | Price 368.81 | Shares 86,897
Proposed sale 15 May 2026
Value US$3,826,355.02 | Price 114.36 | Shares 32,752
Proposed sale 15 Apr 2026
Value US$31,900.00 | Price 3.19 | Shares 10,000
Proposed sale 15 Jan 2026
Value US$110,100.00 | Price 3.67 | Shares 30,000
Proposed sale 3 Oct 2025
Value US$140,850.00 | Price 3.13 | Shares 45,000
Proposed sale 12 Sep 2025
Value US$83,300.00 | Price 2.38 | Shares 35,000
Proposed sale 24 Jul 2025
Value US$46,800.00 | Price 2.34 | Shares 20,000
Proposed sale 27 Sep 2024
Value US$148,000.00 | Price 3.70 | Shares 40,000
Proposed sale 18 Sep 2024
Value US$69,200.00 | Price 3.46 | Shares 20,000
Proposed sale 16 May 2024
Value US$499,500.00 | Price 3.33 | Shares 150,000
Proposed sale 28 Dec 2023
Value US$467,180.00 | Price 4.97 | Shares 94,000
Proposed sale 15 Dec 2023
Value US$352,450.00 | Price 3.71 | Shares 95,000
Proposed sale 11 Dec 2023
Value US$73,800.00 | Price 3.69 | Shares 20,000
Proposed sale 6 Dec 2023
Value US$70,000.00 | Price 3.50 | Shares 20,000
Proposed sale 22 Aug 2023
Value US$52,329.20 | Price 3.08 | Shares 16,990
Proposed sale 21 Aug 2023
Value US$4,602.45 | Price 3.05 | Shares 1,509
Proposed sale 17 Aug 2023
Value US$610.00 | Price 3.05 | Shares 200
Proposed sale 9 Aug 2023
Value US$4,873.37 | Price 3.11 | Shares 1,567
Proposed sale 8 Aug 2023
Value US$10,817.65 | Price 2.95 | Shares 3,667
Proposed sale 24 Jul 2023
Value US$610.00 | Price 3.05 | Shares 200
Proposed sale 21 Jul 2023
Value US$292.00 | Price 2.92 | Shares 100
Proposed sale 18 Jul 2023
Value US$26,400.80 | Price 3.05 | Shares 8,656
Proposed sale 13 Jul 2023
Value US$312.00 | Price 3.12 | Shares 100
Proposed sale 12 Jul 2023
Value US$49,233.00 | Price 3.00 | Shares 16,411
Proposed sale 10 Jul 2023
Value US$77,295.24 | Price 2.98 | Shares 25,938
Proposed sale 7 Jul 2023
Value US$4,528.86 | Price 2.87 | Shares 1,578
Proposed sale 3 Jul 2023
Value US$33,344.22 | Price 2.96 | Shares 11,284
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-05-18 2026-05-15 S Sale
Pfeifer Andrea

Chief Executive Officer

Executive Director
86,897 +21.9%
368.81
US$2,810,208 		86,897 +21.9% 368.81 US$2,810,208
2026-05-15 2026-05-15 PrS Proposed sale
ANDREA M.A PFEIFER

Director; Officer

Executive Director
32,752
114.36
US$3,826,355 		32,752 114.36 US$3,826,355
2026-04-15 2026-04-15 PrS Proposed sale
ANDREA M.A PFEIFER

Officer

Officer
34,238
58.47
US$3,464,653 		34,238 58.47 US$3,464,653
2026-01-15 2026-01-15 PrS Proposed sale
ANDREA M.A PFEIFER

Officer

Officer
30,000
3.67
US$110,100 		30,000 3.67 US$110,100
2025-10-03 2025-10-03 PrS Proposed sale
ANDREA M.A PFEIFER

Officer

Officer
45,000
3.13
US$140,850 		45,000 3.13 US$140,850
2025-09-12 2025-09-12 PrS Proposed sale
ANDREA M.A PFEIFER

Officer

Officer
35,000
2.38
US$83,300 		35,000 2.38 US$83,300
2025-07-24 2025-07-24 PrS Proposed sale
ANDREA M.A PFEIFER

Officer

Officer
20,000
2.34
US$46,800 		20,000 2.34 US$46,800
2024-09-27 2024-09-27 PrS Proposed sale
ANDREA M. A PFEIFER

Officer

Officer
40,000
3.70
US$148,000 		40,000 3.70 US$148,000
2024-09-18 2024-09-18 PrS Proposed sale
ANDREA M. A PFEIFER

Officer

Officer
20,000
3.46
US$69,200 		20,000 3.46 US$69,200
2024-05-16 2024-05-16 PrS Proposed sale
AFFIRIS AG in Liqu

10% Stockholder

Large shareholder
150,000
3.33
US$499,500 		150,000 3.33 US$499,500
2023-12-28 2023-12-28 PrS Proposed sale
ANDREA PFEIFER

Officer

Officer
94,000
4.97
US$467,180 		94,000 4.97 US$467,180
2023-12-15 2023-12-15 PrS Proposed sale
ANDREA PFEIFER

Officer

Officer
95,000
3.71
US$352,450 		95,000 3.71 US$352,450
2023-12-11 2023-12-11 PrS Proposed sale
ANDREA PFEIFER

Officer

Officer
20,000
3.69
US$73,800 		20,000 3.69 US$73,800
2023-12-06 2023-12-06 PrS Proposed sale
ANDREA PFEIFER

Officer

Officer
20,000
3.50
US$70,000 		20,000 3.50 US$70,000
2023-08-22 2023-08-22 PrS Proposed sale
ANDREA PFEIFER

Officer

Officer
16,990
3.08
US$52,329 		16,990 3.08 US$52,329
2023-08-21 2023-08-21 PrS Proposed sale
ANDREA PFEIFER

Officer

Officer
1,509
3.05
US$4,602 		1,509 3.05 US$4,602
2023-08-17 2023-08-17 PrS Proposed sale
ANDREA PFEIFER

Officer

Officer
200
3.05
US$610 		200 3.05 US$610
2023-08-09 2023-08-09 PrS Proposed sale
ANDREA PFEIFER

Officer

Officer
1,567
3.11
US$4,873 		1,567 3.11 US$4,873
2023-08-08 2023-08-08 PrS Proposed sale
ANDREA PFEIFER

Officer

Officer
3,667
2.95
US$10,818 		3,667 2.95 US$10,818
2023-07-24 2023-07-24 PrS Proposed sale
ANDREA PFEIFER

Officer

Officer
200
3.05
US$610 		200 3.05 US$610
2023-07-21 2023-07-21 PrS Proposed sale
ANDREA PFEIFER

Officer

Officer
100
2.92
US$292 		100 2.92 US$292
2023-07-18 2023-07-18 PrS Proposed sale
ANDREA PFEIFER

Officer

Officer
8,656
3.05
US$26,401 		8,656 3.05 US$26,401
2023-07-13 2023-07-13 PrS Proposed sale
ANDREA PFEIFER

Officer

Officer
100
3.12
US$312 		100 3.12 US$312
2023-07-12 2023-07-12 PrS Proposed sale
ANDREA PFEIFER

Officer

Officer
16,411
3.00
US$49,233 		16,411 3.00 US$49,233
2023-07-10 2023-07-10 PrS Proposed sale
ANDREA PFEIFER

Officer

Officer
25,938
2.98
US$77,295 		25,938 2.98 US$77,295
2023-07-07 2023-07-07 PrS Proposed sale
ANDREA PFEIFER

Officer

Officer
1,578
2.87
US$4,529 		1,578 2.87 US$4,529
2023-07-03 2023-07-03 PrS Proposed sale
ANDREA PFEIFER

Officer

Officer
11,284
2.96
US$33,344 		11,284 2.96 US$33,344
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