GREENSTREET YVONNE

PrivateCIK: 1446125
Location

CAMBRIDGE, MA

GREENSTREET YVONNE (Chief Executive Officer) sold 6.4% of their position (6.80K shares) of ALNYLAM PHARMACEUTICALS, INC. on the open market

Open‑market sale worth $2.23M — a moderate reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 10 sales
InsiderGREENSTREET YVONNECIK 1446125
DirectorOfficer· Chief Executive Officer
Since Mar 2026
+148.22K
Net shares
Net buyer
$2.23M
Total sold
10
Open market trades
0B · 10S
13
Total transactions
155.01K acquired · 6.80K disposed
Non-Derivative Transactions11

Common Stock

Direct
A · Award

Shares

+13.84K

Price / share

Trade value

% of position

15.1%
3/2/2026
91.58K105.43K

Common Stock

Direct
S · Sale

Shares

200.00

Price / share

$323.62

Trade value

$64.72K

% of position

0.2%
3/2/2026
105.43K105.23K

Common Stock

Direct
S · Sale

Shares

382.00

Price / share

$324.65

Trade value

$124.02K

% of position

0.4%
3/2/2026
105.23K104.84K

Common Stock

Direct
S · Sale

Shares

1.10K

Price / share

$325.63

Trade value

$357.54K

% of position

1.0%
3/2/2026
104.84K103.75K

Common Stock

Direct
S · Sale

Shares

1.67K

Price / share

$326.81

Trade value

$545.45K

% of position

1.6%
3/2/2026
103.75K102.08K

Common Stock

Direct
S · Sale

Shares

1.40K

Price / share

$327.67

Trade value

$458.41K

% of position

1.4%
3/2/2026
102.08K100.68K

Common Stock

Direct
S · Sale

Shares

424.00

Price / share

$328.71

Trade value

$139.37K

% of position

0.4%
3/2/2026
100.68K100.25K

Common Stock

Direct
S · Sale

Shares

722.00

Price / share

$329.71

Trade value

$238.05K

% of position

0.7%
3/2/2026
100.25K99.53K

Common Stock

Direct
S · Sale

Shares

346.00

Price / share

$330.85

Trade value

$114.47K

% of position

0.3%
3/2/2026
99.53K99.19K

Common Stock

Direct
S · Sale

Shares

399.00

Price / share

$331.93

Trade value

$132.44K

% of position

0.4%
3/2/2026
99.19K98.79K

Common Stock

Direct
S · Sale

Shares

160.00

Price / share

$332.64

Trade value

$53.22K

% of position

0.2%
3/2/2026
98.79K98.63K
Total

Net shares

+7.04K

Net value

-$2.23M

Derivative Transactions2

Stock Option (right to buy)

Direct
A · Award
Converts to

Common Stock

30.43K shares

Shares

+30.43K

Strike price

325.07

Held after

30.43K

Exercisable

3/2/2026

Stock Price Performance Stock Unit

Direct
A · Award
Converts to

Common Stock

110.75K shares

Shares

+110.75K

Strike price

0.0

Held after

110.75K

Exercisable

3/2/2026
Non-Derivative Holdings (Post-Transaction)1

Common Stock

Indirect
Shares owned407.00
Total
407.00 indirect407.00
Derivative Holdings (Post-Transaction)0
No derivative holdings reported
GREENSTREET YVONNE — Insider Transaction (Form 4) Filed Mar 4, 2026 | Finecho