POULTON JEFFREY V.

PrivateCIK: 1782962
Location

CAMBRIDGE, MA

POULTON JEFFREY V. (Chief Financial Officer) sold 3.8% of their position (2.47K shares) of ALNYLAM PHARMACEUTICALS, INC. on the open market

Open‑market sale worth $797.4K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 8 sales
InsiderPOULTON JEFFREY V.CIK 1782962
Officer· Chief Financial Officer
Since Aug 2019
-2.47K
Net shares
Net seller
$797.4K
Total sold
8
Open market trades
0B · 8S
8
Total transactions
2.47K disposed
Non-Derivative Transactions8

Common Stock

Direct
S · Sale

Shares

114.00

Price / share

$319.03

Trade value

$36.37K

% of position

0.2%
3/4/2026
64.27K64.16K

Common Stock

Direct
S · Sale

Shares

109.00

Price / share

$320.01

Trade value

$34.88K

% of position

0.2%
3/4/2026
64.16K64.05K

Common Stock

Direct
S · Sale

Shares

230.00

Price / share

$320.81

Trade value

$73.79K

% of position

0.4%
3/4/2026
64.05K63.82K

Common Stock

Direct
S · Sale

Shares

309.00

Price / share

$321.82

Trade value

$99.44K

% of position

0.5%
3/4/2026
63.82K63.51K

Common Stock

Direct
S · Sale

Shares

374.00

Price / share

$323.01

Trade value

$120.81K

% of position

0.6%
3/4/2026
63.51K63.14K

Common Stock

Direct
S · Sale

Shares

818.00

Price / share

$323.84

Trade value

$264.90K

% of position

1.3%
3/4/2026
63.14K62.32K

Common Stock

Direct
S · Sale

Shares

291.00

Price / share

$324.88

Trade value

$94.54K

% of position

0.5%
3/4/2026
62.32K62.03K

Common Stock

Direct
S · Sale

Shares

223.00

Price / share

$325.67

Trade value

$72.62K

% of position

0.4%
3/4/2026
62.03K61.80K
Total

Net shares

2.47K

Net value

-$797.35K

Derivative Transactions0
No derivative transactions reported
Non-Derivative Holdings (Post-Transaction)1

Common Stock

Indirect
Shares owned57.00
Total
57.00 indirect57.00
Derivative Holdings (Post-Transaction)0
No derivative holdings reported
POULTON JEFFREY V. — Insider Transaction (Form 4) Filed Mar 6, 2026 | Finecho