Sara Bonstein is Chief Financial Officer of INSMED Inc. Currently has a direct ownership of 73,505 shares of INSM, which is worth approximately $7.57 Million. The most recent transaction as insider was on Jul 21, 2025, when has been sold 58,400 shares (Common Stock) at a price of $102.7 per share, resulting in proceeds of $5,997,680. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 73.5K
38.16% 3M change
37.43% 12M change
Total Value Held $7.57 Million

Sara Bonstein Transaction History

Date Transaction Value Shares Traded Shares Held Form
Jul 21 2025
SELL
Open market or private sale
$5,997,680 $102.7 p/Share
58,400 Reduced 44.27%
73,505 Common Stock
Jul 21 2025
BUY
Exercise of conversion of derivative security
$1,418,442 $29.62 p/Share
47,888 Added 26.64%
131,905 Common Stock
Jul 07 2025
SELL
Open market or private sale
$5,541,300 $95.93 p/Share
57,764 Reduced 40.74%
84,017 Common Stock
Jul 07 2025
BUY
Exercise of conversion of derivative security
$1,165,115 $24.33 p/Share
47,888 Added 25.25%
141,781 Common Stock
Jun 23 2025
SELL
Open market or private sale
$5,887,986 $101.93 p/Share
57,765 Reduced 38.18%
93,536 Common Stock
Jun 23 2025
BUY
Exercise of conversion of derivative security
$926,652 $19.35 p/Share
47,889 Added 24.04%
151,301 Common Stock
Jun 10 2025
SELL
Open market or private sale
$5,168,324 $89.47 p/Share
57,766 Reduced 35.84%
103,412 Common Stock
Jun 10 2025
BUY
Exercise of conversion of derivative security
$862,498 $18.01 p/Share
47,890 Added 22.91%
161,178 Common Stock
Jun 03 2025
SELL
Open market or private sale
$112,898 $71.5 p/Share
1,579 Reduced 1.37%
113,288 Common Stock
May 15 2025
BUY
Grant, award, or other acquisition
-
6,508 Added 5.36%
114,867 Common Stock
May 14 2025
SELL
Open market or private sale
$107,206 $65.61 p/Share
1,634 Reduced 1.49%
108,359 Common Stock
May 13 2025
SELL
Open market or private sale
$601,474 $67.81 p/Share
8,870 Reduced 7.46%
109,993 Common Stock
Feb 18 2025
SELL
Open market or private sale
$1,477,486 $80.64 p/Share
18,322 Reduced 13.36%
118,863 Common Stock
Feb 12 2025
SELL
Open market or private sale
$401,520 $80.0 p/Share
5,019 Reduced 3.53%
137,185 Common Stock
Feb 11 2025
SELL
Open market or private sale
$1,064,160 $80.0 p/Share
13,302 Reduced 8.55%
142,204 Common Stock
Feb 06 2025
SELL
Open market or private sale
$2,296,751 $80.9 p/Share
28,390 Reduced 15.44%
155,506 Common Stock
Feb 05 2025
BUY
Grant, award, or other acquisition
-
65,033 Added 26.13%
183,896 Common Stock
Jan 10 2025
SELL
Open market or private sale
$67,925 $63.72 p/Share
1,066 Reduced 0.89%
118,863 Common Stock
Jan 08 2025
SELL
Open market or private sale
$96,697 $66.05 p/Share
1,464 Reduced 1.28%
113,272 Common Stock
Jan 08 2025
BUY
Grant, award, or other acquisition
-
6,657 Added 5.26%
119,929 Common Stock
Jan 07 2025
SELL
Open market or private sale
$227,979 $65.7 p/Share
3,470 Reduced 2.94%
114,736 Common Stock
May 29 2024
SELL
Open market or private sale
$11,028,200 $50.0 p/Share
220,564 Reduced 65.25%
117,481 Common Stock
May 29 2024
BUY
Exercise of conversion of derivative security
$5,792,010 $26.26 p/Share
220,564 Added 38.07%
358,769 Common Stock
May 28 2024
SELL
Open market or private sale
$1,036,407 $50.01 p/Share
20,724 Reduced 5.78%
338,045 Common Stock
May 28 2024
BUY
Exercise of conversion of derivative security
$544,212 $26.26 p/Share
20,724 Added 5.97%
326,613 Common Stock

Also insider at

SCPH
scPharmaceuticals Inc. Healthcare
XLO
Xilio Therapeutics, Inc. Healthcare
SB

Sara Bonstein

Chief Financial Officer
Bridgewater, NJ

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