Gilead Sciences, Inc. (GILD) has 20 known insider and institutional holders on record. The largest holder is O'Day Daniel Patrick with 642,567 shares. Other notable holders include Dickinson Andrew D and Mercier Johanna.
Over the last 12 months, insiders have made 59 transactions in GILD stock — 13 buys (valued at $4.18M) and 20 sells (valued at $9.51M). Insider selling has exceeded buying during this period.
GILD Insider Ownership
Top Holder
O'Day Daniel Patrick
642,567 shares
Buys (12 mo)
13
$4.18M value
Sells (12 mo)
20
$9.51M value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
O'day Daniel Patrick |
Chairman & CEO |
642,567 |
2026-03-30 |
|
| 2 |
Dickinson Andrew D |
Chief Financial Officer |
179,191 |
2026-03-17 |
|
| 3 |
Mercier Johanna |
Chief Comm & Corp Aff Officer |
131,779 |
2026-03-17 |
|
| 4 |
Parsey Merdad |
Chief Medical Officer |
36,753 |
2024-12-11 |
|
| 5 |
Telman Deborah H |
EVP, Corporate Affairs & Gc |
30,389 |
2025-06-11 |
|
| 6 |
Berger Dietmar |
Chief Medical Officer |
18,982 |
2026-03-12 |
|
| 7 |
Pletcher Brett A |
EVP,corp Affairs & Gen Counsel |
16,519 |
2022-06-13 |
|
| 8 |
Patterson Sandra |
SVP, Controllership |
9,875 |
2025-03-12 |
|
| 9 |
Wilfong Diane E. |
Interim Corp Controller & CAO |
8,785 |
2025-06-11 |
|
| 10 |
Barton Jacqueline K |
Director |
6,809 |
2025-05-08 |
|
| 11 |
Rodriguez Javier |
Director |
6,809 |
2025-05-08 |
|
| 12 |
Manwani Harish |
Director |
6,809 |
2025-05-08 |
|
| 13 |
Welters Anthony |
Director |
6,809 |
2025-05-08 |
|
| 14 |
Burkhart Erin |
SVP, Controllership |
5,455 |
2026-03-12 |
|
| 15 |
Horning Sandra |
Director |
5,147 |
2025-05-08 |
|
| 16 |
Cain Wettan Keeley M |
EVP Gen Counsel, Legal & Comp |
5,054 |
2026-03-12 |
|
| 17 |
Bluestone Jeffrey |
Director |
4,665 |
2026-01-21 |
|
| 18 |
Love Ted W |
Director |
4,338 |
2025-05-08 |
|
| 19 |
Whitley Richard James |
Director |
4,028 |
2021-05-07 |
|
| 20 |
Lofton Kevin E |
Director |
3,258 |
2024-03-29 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-03-27 |
O'day Daniel Patrick |
Chairman & CEO |
Informative Sell |
10,000 |
$136.82 |
$1.37M |
| 2026-03-16 |
Mercier Johanna |
Chief Comm & Corp Aff Officer |
Informative Sell |
3,000 |
$144.23 |
$432.69K |
| 2026-03-16 |
Dickinson Andrew D |
Chief Financial Officer |
Informative Sell |
3,000 |
$144.23 |
$432.69K |
| 2026-03-10 |
Cain Wettan Keeley M |
EVP Gen Counsel, Legal & Comp |
Tax Withholding of RSU |
606 |
$148.56 |
$90.03K |
| 2026-03-10 |
Burkhart Erin |
SVP, Controllership |
RSU Award |
5,455 |
$148.56 |
$810.39K |
| 2026-03-10 |
Mercier Johanna |
Chief Comm & Corp Aff Officer |
Option Exercise (Sell) |
6,617 |
- |
- |
| 2026-03-10 |
Berger Dietmar |
Chief Medical Officer |
Tax Withholding of RSU |
1,063 |
$148.56 |
$157.92K |
| 2026-03-10 |
O'day Daniel Patrick |
Chairman & CEO |
Option Exercise (Sell) |
20,026 |
- |
- |
| 2026-03-10 |
Dickinson Andrew D |
Chief Financial Officer |
Option Exercise (Sell) |
6,469 |
- |
- |
| 2026-02-27 |
Cain Wettan Keeley M |
EVP Gen Counsel, Legal & Comp |
RSU Award |
470 |
- |
- |
| 2026-02-27 |
Mercier Johanna |
Chief Comm & Corp Aff Officer |
RSU Award |
11,090 |
- |
- |
| 2026-02-27 |
Berger Dietmar |
Chief Medical Officer |
RSU Award |
8,530 |
- |
- |
| 2026-02-27 |
O'day Daniel Patrick |
Chairman & CEO |
Informative Sell |
100 |
$145.71 |
$14.57K |
| 2026-02-27 |
Dickinson Andrew D |
Chief Financial Officer |
RSU Award |
11,090 |
- |
- |
| 2026-02-17 |
Mercier Johanna |
Chief Comm & Corp Aff Officer |
Option Exercise (Sell) |
25,000 |
$66.64 |
$1.67M |
| 2026-02-17 |
Dickinson Andrew D |
Chief Financial Officer |
Informative Sell |
3,000 |
$154.43 |
$463.29K |
| 2026-02-04 |
Cain Wettan Keeley M |
EVP Gen Counsel, Legal & Comp |
Unknown |
11,342 |
- |
- |
| 2026-02-05 |
O'day Daniel Patrick |
Chairman & CEO |
Option Exercise (Sell) |
115,640 |
$66.01 |
$7.63M |
| 2026-02-03 |
Mercier Johanna |
Chief Comm & Corp Aff Officer |
Tax Withholding of RSU |
24,800 |
$143.28 |
$3.55M |
| 2026-02-03 |
O'day Daniel Patrick |
Chairman & CEO |
Tax Withholding of RSU |
74,461 |
$143.28 |
$10.67M |
| 2026-02-03 |
Dickinson Andrew D |
Chief Financial Officer |
Tax Withholding of RSU |
24,802 |
$143.28 |
$3.55M |
| 2026-01-28 |
O'day Daniel Patrick |
Chairman & CEO |
Informative Sell |
4,968 |
$140.24 |
$696.73K |
| 2026-01-23 |
O'day Daniel Patrick |
Chairman & CEO |
Option Exercise (Sell) |
115,640 |
$66.01 |
$7.63M |
| 2026-01-20 |
Bluestone Jeffrey |
Director |
Option Exercise (Sell) |
5,000 |
$67.45 |
$337.25K |
| 2026-01-15 |
Mercier Johanna |
Chief Commercial Officer |
Informative Sell |
3,000 |
$124.31 |
$372.93K |
