Stock chart
Ticker: BIIB Exchange: NSM


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Purchase Sale Planned purchase Planned sale Net purchase Net sale Earnings
Earnings
 
Value bought

Past 90 days

 
Value sold

Past 90 days

 
Net insiders buying

Past 90 days

 
Trades (buy and sell)

Past 90 days

Abbreviations B: Buy, S: Sell, PP: Planned purchase, PS: Planned 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
2025-05-20 2025-05-19 PS Planned sale

Singhal Priya

Head of Development

Officer
3,806 -41.2%
126.25
USD 480,508
3,806 -41.2% 126.25 USD 480,508
2025-05-05 2025-05-02 B Purchase

DORSA CAROLINE

Non-Executive Director
1,235 +4.6%
122.72
USD 151,559
1,235 +4.6% 122.72 USD 151,559
2025-03-10 2025-03-07 S Sale

SHERWIN STEPHEN A

Non-Executive Director
8,760 -43.6%
150.02
USD 1,314,142
8,760 -43.6% 150.02 USD 1,314,142
2024-12-09 2024-12-09 S Sale

Singhal Priya

Head of Development

Officer
110 -2.0%
157.21
USD 17,293
110 -2.0% 157.21 USD 17,293
2024-09-05 2024-09-03 S Sale

Singhal Priya

Head of Development

Officer
431 -7.5%
204.22
USD 88,019
431 -7.5% 204.22 USD 88,019
2024-04-03 2024-04-02 PS Planned sale

Singhal Priya

Head of Development

Officer
93 -1.9%
213.09
USD 19,817
93 -1.9% 213.09 USD 19,817
2024-02-26 2024-02-22 S Sale

Singhal Priya

Head of Development

Officer
262 -5.1%
221.23
USD 57,962
262 -5.1% 221.23 USD 57,962
2024-02-21 2024-02-16 S Sale

Singhal Priya

Head of Development

Officer
108 -2.1%
221.49
USD 23,921
108 -2.1% 221.49 USD 23,921
2024-02-20 2024-02-15 B Purchase

Rowinsky Eric K

Non-Executive Director
455 +2.3%
222.54
USD 101,256
455 +2.3% 222.54 USD 101,256
2024-02-13 2024-02-12 S Sale

Singhal Priya

Head of Development

Officer
419 -8.5%
239.45
USD 100,330
419 -8.5% 239.45 USD 100,330
2024-02-05 2024-02-02 S Sale

Singhal Priya

Head of Development

Officer
634 -13.4%
245.93
USD 155,920
634 -13.4% 245.93 USD 155,920
2023-12-12 2023-12-11 S Sale

Singhal Priya

Head of Development

Officer
110 -3.1%
248.00
USD 27,280
110 -3.1% 248.00 USD 27,280
2023-09-06 2023-09-05 S Sale

Singhal Priya

Head of Development

Officer
431 -11.4%
269.43
USD 116,124
431 -11.4% 269.43 USD 116,124
2023-07-05 2023-07-03 S Sale

Singhal Priya

Head of Development

Officer
81 -2.7%
282.87
USD 22,912
81 -2.7% 282.87 USD 22,912
2023-05-02 2023-04-28 PS Planned sale

Gregory Ginger

EVP, Human Resources

Officer
2,681 -24.0%
300.00
USD 804,300
2,681 -24.0% 300.00 USD 804,300
2023-04-06 2023-04-04 PS Planned sale

Singhal Priya

Head of Development

Officer
91 -3.1%
277.11
USD 25,217
91 -3.1% 277.11 USD 25,217
2023-03-30 2023-03-28 PS Planned sale

Singhal Priya

Head of Development

Officer
568 -16.7%
270.06
USD 153,394
568 -16.7% 270.06 USD 153,394
2022-12-12 2022-11-14 PS Planned sale

Gregory Ginger

EVP, Human Resources

Officer
5,610 -49.6%
300.11
USD 1,683,617
5,610 -49.6% 300.11 USD 1,683,617
2022-10-28 2022-10-27 PS Planned sale

ALEXANDER SUSAN H

EVP Chief Legal Off & Corp Sec

Officer
5,532 -12.3%
280.70
USD 1,552,832
5,532 -12.3% 280.70 USD 1,552,832
2021-06-09 2021-06-07 PS Planned sale

Sandrock Alfred

Head of Research & Development

Officer
7,672 -43.0%
440.00
USD 3,375,680
7,672 -43.0% 440.00 USD 3,375,680
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