HORN MARGARET A

PrivateCIK: 1294192
Location

PALO ALTO, CA

HORN MARGARET A (See Remarks) sold 34.7% of their position (75K shares) of REVOLUTION MEDICINES, INC. on the open market

Open‑market sale worth $7.54M — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 3 sales
InsiderHORN MARGARET ACIK 1294192
Officer· See Remarks
Since Feb 2020
-75K
Net shares
Net seller
$7.54M
Total sold
3
Open market trades
0B · 3S
7
Total transactions
75K acquired · 150K disposed
Non-Derivative Transactions5

Common Stock

Direct
M · Option Exercise

Shares

+51.41K

Price / share

$42.45

Trade value

$2.18M

% of position

36.4%
1/7/2026
141.05K192.46K

Common Stock

Direct
M · Option Exercise

Shares

+23.59K

Price / share

$29.80

Trade value

$703.10K

% of position

12.3%
1/7/2026
192.46K216.05K

Common Stock

Direct
S · Sale

Shares

53.10K

Price / share

$100.02

Trade value

$5.31M

% of position

24.6%
1/7/2026
216.05K162.96K

Common Stock

Direct
S · Sale

Shares

20.20K

Price / share

$101.79

Trade value

$2.06M

% of position

12.4%
1/7/2026
162.96K142.75K

Common Stock

Direct
S · Sale

Shares

1.70K

Price / share

$102.90

Trade value

$174.93K

% of position

1.2%
1/7/2026
142.75K141.05K
Total

Net shares

+0.00

Net value

-$4.66M

Derivative Transactions2

Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock

51.41K shares

Shares

51.41K

Strike price

42.45

Held after

1.09K

Exercisable

1/7/2026

Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock

23.59K shares

Shares

23.59K

Strike price

29.8

Held after

119.91K

Exercisable

1/7/2026
HORN MARGARET A — Insider Transaction (Form 4) Filed Jan 9, 2026 | Finecho