Lewis William - Insider Trading & Ownership

Real time insider trading transaction history:

  • Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
  • Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
Time period
Insider Trading Transactions for Lewis William
Goto 0, 1, Next
Common stock purchase or sale:
Transaction
Date
Reported
DateTime
CompanySymbolInsider
Relationship
Shares
Traded
Average
Price
Total
Amount
Shares
Owned
Filing
2026-07-23
Sale
2026-07-24
5:02 pm
INSMED IncINSMLewis William
Chair and CEO
10,700$106.06$1,134,890492,982
(Indirect
Direct)
View
2026-07-09
Sale
2026-07-10
4:02 pm
INSMED IncINSMLewis William
Chair and CEO
10,699$117.4$1,256,084503,682
(Indirect
Direct)
View
2026-06-25
Sale
2026-06-26
4:03 pm
INSMED IncINSMLewis William
Chair and CEO
21,398$103.32$2,210,763514,240
(Indirect
Direct)
View
2026-06-08
Sale
2026-06-10
4:05 pm
INSMED IncINSMLewis William
Chair and CEO
6,515$94.03$612,605492,841
(Indirect
Direct)
View
2026-06-03
Sale
2026-06-05
4:12 pm
INSMED IncINSMLewis William
Chair and CEO
7,605$102.27$777,763499,356
(Indirect
Direct)
View
2026-05-18
Sale
2026-05-20
4:06 pm
INSMED IncINSMLewis William
Chair and CEO
25,564$106.33$2,718,224549,758
(Indirect
Direct)
View
2026-05-13
Sale
2026-05-15
4:06 pm
INSMED IncINSMLewis William
Chair and CEO
13,283$116.18$1,543,219521,826
(Indirect
Direct)
View
2026-05-04
Sale
2026-05-06
4:11 pm
INSMED IncINSMLewis William
Chair and CEO
10,699$137.34$1,469,442588,605
(Indirect
Direct)
View
2026-04-16
Sale
2026-04-17
4:43 pm
INSMED IncINSMLewis William
Chair and CEO
10,699$143.97$1,540,332599,304
(Indirect
Direct)
View
2026-04-06
Sale
2026-04-08
4:41 pm
INSMED IncINSMLewis William
Chair and CEO
10,699$163.22$1,746,336610,003
(Indirect
Direct)
View
2026-03-19
Sale
2026-03-20
4:05 pm
INSMED IncINSMLewis William
Chair and CEO
10,699$143.52$1,535,542620,702
(Indirect
Direct)
View
2026-03-05
Sale
2026-03-05
4:16 pm
INSMED IncINSMLewis William
Chair and CEO
10,699$146.03$1,562,328631,401
(Indirect
Direct)
View
2026-02-19
Sale
2026-02-23
4:34 pm
INSMED IncINSMLewis William
Chair and CEO
10,699$150.97$1,615,257692,600
(Indirect
Direct)
View
2026-02-09
Sale
2026-02-11
4:42 pm
INSMED IncINSMLewis William
Chair and CEO
13,396$147.79$1,979,764703,299
(Indirect
Direct)
View
2026-02-03
Sale
2026-02-04
4:17 pm
INSMED IncINSMLewis William
Chair and CEO
3,009$156.34$470,427588,306
(Indirect
Direct)
View
2026-01-20
Sale
2026-01-22
4:28 pm
INSMED IncINSMLewis William
Chair and CEO
10,699$158.93$1,700,411719,704
(Indirect
Direct)
View
2026-01-12
Sale
2026-01-13
4:04 pm
INSMED IncINSMLewis William
Chair and CEO
19,215$169$3,247,349730,403
(Indirect
Direct)
View
2026-01-06
Sale
2026-01-08
5:20 pm
INSMED IncINSMLewis William
Chair and CEO
9,676$174.03$1,683,950599,831
(Indirect
Direct)
View
2025-12-18
Sale
2025-12-19
4:12 pm
INSMED IncINSMLewis William
Chair and CEO
10,699$166.97$1,786,457738,122
(Indirect
Direct)
View
2025-12-04
Sale
2025-12-05
4:11 pm
INSMED IncINSMLewis William
Chair and CEO
10,699$205.62$2,199,915748,821
(Indirect
Direct)
View
2025-08-18
Sale
2025-08-20
4:28 pm
INSMED IncINSMLewis William
Chair and CEO
6,865$128.4$881,470588,335
(Indirect
Direct)
View
2025-08-04
Sale
2025-08-06
4:21 pm
INSMED IncINSMLewis William
Chair and CEO
6,830$109.81$750,008595,200
(Indirect
Direct)
View
2025-07-15
Sale
2025-07-15
5:53 pm
INSMED IncINSMLewis William
Chair and CEO
6,830$102.37$699,220602,030
(Indirect
Direct)
View
2025-07-01
Sale
2025-07-02
4:06 pm
INSMED IncINSMLewis William
Chair and CEO
6,830$98.33$671,612608,860
(Indirect
Direct)
View
2025-06-16
Sale
2025-06-18
4:16 pm
INSMED IncINSMLewis William
Chair and CEO
135,009$100.39$13,553,744615,333
(Indirect
Direct)
View
2025-06-02
Sale
2025-06-04
4:40 pm
INSMED IncINSMLewis William
Chair and CEO
12,302$71.39$878,292750,342
(Indirect
Direct)
View
2025-05-20
Sale
2025-05-22
5:18 pm
INSMED IncINSMLewis William
Chair and CEO
27,887$67.66$1,886,957762,644
(Indirect
Direct)
View
2025-05-13
Sale
2025-05-15
4:33 pm
INSMED IncINSMLewis William
Chair and CEO
21,213$66.73$1,415,573597,397
(Indirect
Direct)
View
2025-05-01
Sale
2025-05-02
4:43 pm
INSMED IncINSMLewis William
Chair and CEO
6,830$72.57$495,668789,430
(Indirect
Direct)
View
2025-04-15
Sale
2025-04-16
4:17 pm
INSMED IncINSMLewis William
Chair and CEO
6,830$70.16$479,177796,260
(Indirect
Direct)
View
2025-04-01
Sale
2025-04-03
4:25 pm
INSMED IncINSMLewis William
Chair and CEO
6,830$73.58$502,577803,090
(Indirect
Direct)
View
2025-03-17
Sale
2025-03-19
4:53 pm
INSMED IncINSMLewis William
Chair and CEO
25,580$77.03$1,970,421809,920
(Indirect
Direct)
View
2025-03-03
Sale
2025-03-05
5:27 pm
INSMED IncINSMLewis William
Chair and CEO
25,580$77.79$1,989,797835,500
(Indirect
Direct)
View
2025-02-18
Sale
2025-02-20
4:52 pm
INSMED IncINSMLewis William
Chair and CEO
25,580$81.03$2,072,721861,080
(Indirect
Direct)
View
2025-02-06
Sale
2025-02-07
5:11 pm
INSMED IncINSMLewis William
Chair and CEO
79,350$80.9$6,419,415738,318
(Indirect
Direct)
View
2025-02-03
Sale
2025-02-05
4:44 pm
INSMED IncINSMLewis William
Chair and CEO
25,580$77.94$1,993,731932,008
(Indirect
Direct)
View
2025-01-15
Sale
2025-01-16
4:37 pm
INSMED IncINSMLewis William
Chair and CEO
38,635$70.18$2,711,456957,588
(Indirect
Direct)
View

Stock options: Exercise, Award, Grant, Conversion
Transaction
Date
Reported
DateTime
Exercisable
Expiration
CompanySymnbolInsider
Relationship
Shares
Traded
Conversion
Price
Shares
Owned
Filing
2026-07-23
Exercise
2026-07-24
5:02 pm
N/A
2028-01-04
INSMED IncINSMLewis William
Chair and CEO
10,700$0492,982
(Direct)
View
2026-07-23
Exercise
2026-07-24
5:02 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
6,260$30.46492,982
(Direct)
View
2026-07-23
Exercise
2026-07-24
5:02 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
4,440$17.16492,982
(Direct)
View
2026-07-09
Exercise
2026-07-10
4:02 pm
N/A
2028-01-04
INSMED IncINSMLewis William
Chair and CEO
10,699$0503,682
(Direct)
View
2026-07-09
Exercise
2026-07-10
4:02 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
6,259$30.46503,682
(Direct)
View
2026-07-09
Exercise
2026-07-10
4:02 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
4,440$17.16503,682
(Direct)
View
2026-06-25
Exercise
2026-06-26
4:03 pm
N/A
2028-01-04
INSMED IncINSMLewis William
Chair and CEO
21,398$0514,240
(Direct)
View
2026-06-25
Exercise
2026-06-26
4:03 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
12,518$30.46514,240
(Direct)
View
2026-06-25
Exercise
2026-06-26
4:03 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
8,880$17.16514,240
(Direct)
View
2026-05-18
Exercise
2026-05-20
4:06 pm
N/A
2028-01-04
INSMED IncINSMLewis William
Chair and CEO
10,699$0549,758
(Direct)
View
2026-05-18
Exercise
2026-05-20
4:06 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
6,259$30.46549,758
(Direct)
View
2026-05-18
Exercise
2026-05-20
4:06 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
4,440$17.16549,758
(Direct)
View
2026-05-04
Exercise
2026-05-06
4:11 pm
N/A
2028-01-04
INSMED IncINSMLewis William
Chair and CEO
10,699$0588,605
(Direct)
View
2026-05-04
Exercise
2026-05-06
4:11 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
6,259$30.46588,605
(Direct)
View
2026-05-04
Exercise
2026-05-06
4:11 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
4,440$17.16588,605
(Direct)
View
2026-04-16
Exercise
2026-04-17
4:43 pm
N/A
2028-01-04
INSMED IncINSMLewis William
Chair and CEO
10,699$0599,304
(Direct)
View
2026-04-16
Exercise
2026-04-17
4:43 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
6,259$30.46599,304
(Direct)
View
2026-04-16
Exercise
2026-04-17
4:43 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
4,440$17.16599,304
(Direct)
View
2026-04-06
Exercise
2026-04-08
4:41 pm
N/A
2028-01-04
INSMED IncINSMLewis William
Chair and CEO
10,699$0610,003
(Direct)
View
2026-04-06
Exercise
2026-04-08
4:41 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
6,259$30.46610,003
(Direct)
View
2026-04-06
Exercise
2026-04-08
4:41 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
4,440$17.16610,003
(Direct)
View
2026-03-19
Exercise
2026-03-20
4:05 pm
N/A
2028-01-04
INSMED IncINSMLewis William
Chair and CEO
10,699$0620,702
(Direct)
View
2026-03-19
Exercise
2026-03-20
4:05 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
6,259$30.46620,702
(Direct)
View
2026-03-19
Exercise
2026-03-20
4:05 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
4,440$17.16620,702
(Direct)
View
2026-03-05
Exercise
2026-03-05
4:16 pm
N/A
2028-01-04
INSMED IncINSMLewis William
Chair and CEO
10,699$0631,401
(Direct)
View
2026-03-05
Exercise
2026-03-05
4:16 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
6,259$30.46631,401
(Direct)
View
2026-03-05
Exercise
2026-03-05
4:16 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
4,440$17.16631,401
(Direct)
View
2026-02-19
Exercise
2026-02-23
4:34 pm
N/A
2028-01-04
INSMED IncINSMLewis William
Chair and CEO
10,699$0692,600
(Direct)
View
2026-02-19
Exercise
2026-02-23
4:34 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
6,259$30.46692,600
(Direct)
View
2026-02-19
Exercise
2026-02-23
4:34 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
4,440$17.16692,600
(Direct)
View
2026-02-09
Exercise
2026-02-11
4:42 pm
N/A
2027-05-17
INSMED IncINSMLewis William
Chair and CEO
10,699$0703,299
(Direct)
View
2026-02-09
Exercise
2026-02-11
4:42 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
6,259$30.46703,299
(Direct)
View
2026-02-09
Exercise
2026-02-11
4:42 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
4,440$17.16703,299
(Direct)
View
2026-01-20
Exercise
2026-01-22
4:28 pm
N/A
2028-01-04
INSMED IncINSMLewis William
Chair and CEO
10,699$0719,704
(Direct)
View
2026-01-20
Exercise
2026-01-22
4:28 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
6,259$30.46719,704
(Direct)
View
2026-01-20
Exercise
2026-01-22
4:28 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
4,440$17.16719,704
(Direct)
View
2026-01-12
Exercise
2026-01-13
4:04 pm
N/A
2028-01-04
INSMED IncINSMLewis William
Chair and CEO
10,699$0730,403
(Direct)
View
2026-01-12
Exercise
2026-01-13
4:04 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
6,259$30.46730,403
(Direct)
View
2026-01-12
Exercise
2026-01-13
4:04 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
4,440$17.16730,403
(Direct)
View
2026-01-07
Option Award
2026-01-09
7:34 pm
N/A
2036-01-07
NewAmsterdam Pharma Co N.V.NAMSLewis William
Director
18,700$025,660
(Direct)
View
2026-01-02
Option Award
2026-01-06
4:07 pm
N/A
2036-01-02
INSMED IncINSMLewis William
Chair and CEO
131,572$0719,907
(Direct)
View
2025-12-18
Exercise
2025-12-19
4:12 pm
N/A
2027-05-17
INSMED IncINSMLewis William
Chair and CEO
10,699$0738,122
(Direct)
View
2025-12-18
Exercise
2025-12-19
4:12 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
6,259$30.46738,122
(Direct)
View
2025-12-18
Exercise
2025-12-19
4:12 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
4,440$17.16738,122
(Direct)
View
2025-12-04
Exercise
2025-12-05
4:11 pm
N/A
2028-01-04
INSMED IncINSMLewis William
Chair and CEO
10,699$0748,821
(Direct)
View
2025-12-04
Exercise
2025-12-05
4:11 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
6,259$30.46748,821
(Direct)
View
2025-12-04
Exercise
2025-12-05
4:11 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
4,440$17.16748,821
(Direct)
View
2025-08-18
Exercise
2025-08-20
4:28 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
6,865$10.85588,335
(Indirect)
View
2025-08-18
Exercise
2025-08-20
4:28 pm
N/A
2026-05-19
INSMED IncINSMLewis William
Chair and CEO
6,865$0588,335
(Indirect)
View
2025-08-04
Exercise
2025-08-06
4:21 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
6,830$10.85595,200
(Indirect)
View
2025-08-04
Exercise
2025-08-06
4:21 pm
N/A
2026-05-19
INSMED IncINSMLewis William
Chair and CEO
6,830$0595,200
(Indirect)
View
2025-07-15
Exercise
2025-07-15
5:53 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
6,830$10.85602,030
(Indirect)
View
2025-07-15
Exercise
2025-07-15
5:53 pm
N/A
2026-05-19
INSMED IncINSMLewis William
Chair and CEO
6,830$0602,030
(Indirect)
View
2025-07-01
Exercise
2025-07-02
4:06 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
6,830$10.85608,860
(Indirect)
View
2025-07-01
Exercise
2025-07-02
4:06 pm
N/A
2026-05-19
INSMED IncINSMLewis William
Chair and CEO
6,830$0608,860
(Indirect)
View
2025-06-16
Exercise
2025-06-18
4:16 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
129,805$10.85615,333
(Indirect)
View
2025-06-16
Exercise
2025-06-18
4:16 pm
N/A
2026-05-19
INSMED IncINSMLewis William
Chair and CEO
129,805$0615,333
(Indirect)
View
2025-06-02
Exercise
2025-06-04
4:40 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
6,830$10.85750,342
(Indirect)
View
2025-06-02
Exercise
2025-06-04
4:40 pm
N/A
2026-05-19
INSMED IncINSMLewis William
Chair and CEO
6,830$0750,342
(Indirect)
View
2025-05-20
Exercise
2025-05-22
5:18 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
6,830$10.85762,644
(Indirect)
View
2025-05-20
Exercise
2025-05-22
5:18 pm
N/A
2026-05-19
INSMED IncINSMLewis William
Chair and CEO
6,830$0762,644
(Indirect)
View
2025-05-15
Option Award
2025-05-19
5:05 pm
N/A
2035-05-15
INSMED IncINSMLewis William
Chair and CEO
130,694$0728,091
(Direct)
View
2025-05-01
Exercise
2025-05-02
4:43 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
6,830$10.85789,430
(Indirect)
View
2025-05-01
Exercise
2025-05-02
4:43 pm
N/A
2026-05-19
INSMED IncINSMLewis William
Chair and CEO
6,830$0789,430
(Indirect)
View
2025-04-15
Exercise
2025-04-16
4:17 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
6,830$10.85796,260
(Indirect)
View
2025-04-15
Exercise
2025-04-16
4:17 pm
N/A
2026-05-19
INSMED IncINSMLewis William
Chair and CEO
6,830$0796,260
(Indirect)
View
2025-04-01
Exercise
2025-04-03
4:25 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
6,830$10.85803,090
(Indirect)
View
2025-04-01
Exercise
2025-04-03
4:25 pm
N/A
2026-05-19
INSMED IncINSMLewis William
Chair and CEO
6,830$0803,090
(Indirect)
View
2025-03-17
Exercise
2025-03-19
4:53 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
6,830$10.85809,920
(Indirect)
View
2025-03-17
Exercise
2025-03-19
4:53 pm
N/A
2025-05-21
INSMED IncINSMLewis William
Chair and CEO
25,580$0809,920
(Direct)
View
2025-03-17
Exercise
2025-03-19
4:53 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
18,750$22.76809,920
(Direct)
View
2025-03-03
Exercise
2025-03-05
5:27 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
6,830$10.85835,500
(Indirect)
View
2025-03-03
Exercise
2025-03-05
5:27 pm
N/A
2025-05-21
INSMED IncINSMLewis William
Chair and CEO
25,580$0835,500
(Direct)
View
2025-03-03
Exercise
2025-03-05
5:27 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
18,750$22.76835,500
(Direct)
View
2025-02-18
Exercise
2025-02-20
4:52 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
6,830$10.85861,080
(Indirect)
View
2025-02-18
Exercise
2025-02-20
4:52 pm
N/A
2025-05-21
INSMED IncINSMLewis William
Chair and CEO
25,580$0861,080
(Direct)
View
2025-02-18
Exercise
2025-02-20
4:52 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
18,750$22.76861,080
(Direct)
View
2025-02-05
Option Award
2025-02-07
5:11 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
153,710$0738,318
(Direct)
View
2025-02-03
Exercise
2025-02-05
4:44 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
6,830$10.85932,008
(Indirect)
View
2025-02-03
Exercise
2025-02-05
4:44 pm
N/A
2025-05-21
INSMED IncINSMLewis William
Chair and CEO
25,580$0932,008
(Direct)
View
2025-02-03
Exercise
2025-02-05
4:44 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
18,750$22.76932,008
(Direct)
View
2025-01-15
Exercise
2025-01-16
4:37 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
6,830$10.85957,588
(Indirect)
View
2025-01-15
Exercise
2025-01-16
4:37 pm
N/A
2025-05-21
INSMED IncINSMLewis William
Chair and CEO
25,580$0957,588
(Direct)
View
2025-01-15
Exercise
2025-01-16
4:37 pm
N/A
N/A
INSMED IncINSMLewis William
Chair and CEO
18,750$22.76957,588
(Direct)
View
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