Lewis William

Insider·INSMED Inc·INSM·Insider since 2025·Form 4 filings: 117
Trades YTD
19
Trades (12m)
53
Net position
Current holdings
P-code buys (12m)
0
Cluster
None

Transaction history · last 12 months

50 transactions
09 Feb 2026
SOLD
$INSM
1,287
$148.83
S
09 Feb 2026
SOLD
$INSM
7,221
$148.02
S
09 Feb 2026
SOLD
$INSM
4,888
$147.17
S
03 Feb 2026
SOLD
$INSM
3,009
$156.34
S
20 Jan 2026
SOLD
$INSM
254
$160.70
S
20 Jan 2026
SOLD
$INSM
2,229
$159.85
S
20 Jan 2026
SOLD
$INSM
5,967
$158.99
S
20 Jan 2026
SOLD
$INSM
1,243
$158.37
S
20 Jan 2026
SOLD
$INSM
1,006
$156.80
S
12 Jan 2026
SOLD
$INSM
315
$174.86
S
12 Jan 2026
SOLD
$INSM
297
$172.36
S
12 Jan 2026
SOLD
$INSM
297
$171.31
S
12 Jan 2026
SOLD
$INSM
160
$170.24
S
12 Jan 2026
SOLD
$INSM
6,996
$169.57
S
12 Jan 2026
SOLD
$INSM
7,176
$168.63
S
12 Jan 2026
SOLD
$INSM
3,974
$167.73
S
08 Jan 2026
SOLD
$INSM
3,223
$174.17
S
07 Jan 2026
SOLD
$INSM
2,357
$175.07
S
06 Jan 2026
SOLD
$INSM
4,096
$173.33
S
18 Dec 2025
SOLD
$INSM
51
$171.20
S
18 Dec 2025
SOLD
$INSM
362
$170.26
S
18 Dec 2025
SOLD
$INSM
1,938
$169.58
S
18 Dec 2025
SOLD
$INSM
2,175
$168.54
S
18 Dec 2025
SOLD
$INSM
1,431
$167.29
S
18 Dec 2025
SOLD
$INSM
1,783
$166.60
S
18 Dec 2025
SOLD
$INSM
697
$165.21
S
18 Dec 2025
SOLD
$INSM
447
$164.24
S
18 Dec 2025
SOLD
$INSM
1,465
$163.19
S
18 Dec 2025
SOLD
$INSM
350
$162.26
S
04 Dec 2025
SOLD
$INSM
1,040
$207.42
S
04 Dec 2025
SOLD
$INSM
2,921
$206.49
S
04 Dec 2025
SOLD
$INSM
2,222
$205.66
S
04 Dec 2025
SOLD
$INSM
4,516
$204.62
S
18 Aug 2025
SOLD
$INSM
1,416
$129.47
S
18 Aug 2025
SOLD
$INSM
2,481
$128.76
S
18 Aug 2025
SOLD
$INSM
2,968
$127.59
S
04 Aug 2025
SOLD
$INSM
1,938
$110.91
S
04 Aug 2025
SOLD
$INSM
3,199
$109.68
S
04 Aug 2025
SOLD
$INSM
1,693
$108.80
S
15 Jul 2025
SOLD
$INSM
170
$103.32
S
15 Jul 2025
SOLD
$INSM
4,492
$102.66
S
15 Jul 2025
SOLD
$INSM
2,168
$101.71
S
01 Jul 2025
SOLD
$INSM
815
$99.61
S
01 Jul 2025
SOLD
$INSM
2,349
$98.83
S
01 Jul 2025
SOLD
$INSM
3,666
$97.73
S
16 Jun 2025
SOLD
$INSM
41,784
$101.23
S
16 Jun 2025
SOLD
$INSM
48,531
$100.54
S
16 Jun 2025
SOLD
$INSM
32,490
$99.51
S
16 Jun 2025
SOLD
$INSM
7,000
$98.50
S
16 Jun 2025
SOLD
$INSM
904
$101.39
S

Transaction codes: P open-market purchase · S sale · M option exercise · A grant.

Cluster context · INSMED Inc

last 30 days

No active insider cluster at INSMED Inc in the last 30 days. William's recent transactions appear in the section above.

Convergence · Pattern Engine ships in v1.1

30-day window
In development

Convergence participation lands with the Pattern Engine.

Once the Pattern Engine ships, this section will list every active convergence event William is named in — the hedge funds and Congress members on the same name, the 30-day window, and the combined position size.

Context

Form 4 background

Form 4 filings are required within two business days of any insider transaction by an officer, director, or 10%+ shareholder. Open-market purchases (transaction code P) are the most signal-rich because they indicate the insider is paying market price with personal cash — as distinct from option exercises, scheduled sales, or compensation grants. Cluster buying — three or more insiders of the same company buying open-market shares in a 30-day window — has historically been one of the strongest positive insider-trading signals in the academic literature.

Source data: SEC EDGAR · Form 4 filings · Last refreshed 08:07 UTC.