Spencer Berthelsen

Track

Insider profile

Currently holds a position at Ionis Pharmaceuticals Inc

Performance

Overall performance
1.5
Performance over holding periods
1.5
30 days 90 days 120 days
Average return -19% 8.2% 15.1%
Success rate 0% 68% 82%
Transactions
1 0% Buy
34 71% Buy
47 69% Buy
Ranking by holding-period performance

Positions

Position Company Period
Independent Director Ionis Pharmaceuticals Inc May 1, 2002 -
Spencer Berthelsen's trades of Ionis Pharmaceuticals Inc's stock


• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date Company B/S Transaction type Nb. shares
Price
Value 		Number of shares Price Value Details
2026-06-16 2026-06-15
PlS Planned sale
22,800 -17.7%
48.23
US$4,881,866 		22,800 -17.7% 48.23 US$4,881,866
2026-06-15 2026-06-15
PrS Proposed sale
55,374
265.26
US$2,348,266 		55,374 265.26 US$2,348,266
2026-06-03 2026-06-01
PlS Planned sale
10,912 +29.2%
254.49
US$3,948,983 		10,912 +29.2% 254.49 US$3,948,983
2026-06-01 2026-06-01
PrS Proposed sale
8,000
75.67
US$605,360 		8,000 75.67 US$605,360
2024-06-20 2024-06-17
S Sale
16,000 -9.8%
40.29
US$644,640 		16,000 -9.8% 40.29 US$644,640
2024-06-17 2024-06-17
PrS Proposed sale
16,000
40.29
US$644,640 		16,000 40.29 US$644,640
2021-06-25 2021-06-23
PlS Planned sale
15,000 -12.9%
37.74
US$566,100 		15,000 -12.9% 37.74 US$566,100
2020-06-25 2020-06-23
PlS Planned sale
15,000 -13.4%
58.76
US$881,400 		15,000 -13.4% 58.76 US$881,400
2019-06-26 2019-06-24
PlS Planned sale
9,690 -9.3%
63.84
US$618,639 		9,690 -9.3% 63.84 US$618,639
2019-06-26 2019-06-24
PlS Planned sale
5,310 -5.3%
63.37
US$336,474 		5,310 -5.3% 63.37 US$336,474