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GILDGilead Sciences · Insider ownership research

Gilead Sciences insiders sold $87.6M in the past 12 months. How much of their stake is that?

About 48% overall. As a group they still hold 99% of their starting shares.

Updated Oct 9, 2026 from SEC filings · covers Oct 10, 2025 to Oct 9, 2026
How this comparesMore of their stake sold than at 408 of the 416 other companies we can measure (#9 of 417)See ranking
0
buyers among officers and directors, past 12 months
99%
of sales were under disclosed trading plans, past 12 months
7 of 16
officers and directors sold shares, past 12 months
Recent activity · past 30 days, Sep 10, 2026 to Oct 9, 2026
Oct 1, 2026Daniel O'Day sold 15K shares ($2.2M) under a disclosed trading plan. That is 2.6% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Daniel O'Day
Chairman & CEO, Director
15,000$147.902.6%567KOct 1, 2026Oct 2, 2026

"% of total stake" is the shares in this event against all the vested shares the person held that day, across every share class and holding entity, after that day's vesting. "n/a" means the person's holdings don't reconcile, or the row is a purchase. "Holdings record incomplete" means more shares were sold than the filings show the person held that day, so a percentage would be wrong.

Sep 22, 2026Erin Burkhart had 768 shares ($117K) withheld by the company for taxes (not a market sale). That is 35% of the total stake held that day. 2.2K shares came in from vesting or option exercises the same day, so the holding rose by 1.5K net.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Erin Burkhart
SVP, Controllership
768$152.6735%1.5KSep 22, 2026Sep 23, 2026

"% of total stake" is the shares in this event against all the vested shares the person held that day, across every share class and holding entity, after that day's vesting. "n/a" means the person's holdings don't reconcile, or the row is a purchase. "Holdings record incomplete" means more shares were sold than the filings show the person held that day, so a percentage would be wrong.

Sep 15, 20262 executives sold 6K shares ($869K) under a disclosed trading plan. That is between 1.8% and 2.5% of each person's total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Andrew Dickinson
Chief Financial Officer
3,000$145.291.8%164KSep 15, 2026Sep 16, 2026
Johanna Mercier
Chief Comm & Corp Aff Officer
3,000$144.222.5%117KSep 15, 2026Sep 16, 2026

"% of total stake" is the shares in this event against all the vested shares the person held that day, across every share class and holding entity, after that day's vesting. "n/a" means the person's holdings don't reconcile, or the row is a purchase. "Holdings record incomplete" means more shares were sold than the filings show the person held that day, so a percentage would be wrong.

Sep 10, 20265 executives had 7.5K shares ($1.1M) withheld by the company for taxes (not a market sale). That is between 0.7% and 3.2% of each person's total stake held that day. 15K shares came in from vesting or option exercises the same day, so their combined holdings rose by 8K net.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Daniel O'Day
Chairman & CEO, Director
4,230$144.810.7%582KSep 10, 2026Sep 11, 2026
Andrew Dickinson
Chief Financial Officer
1,347$144.810.8%167KSep 10, 2026Sep 11, 2026
Johanna Mercier
Chief Comm & Corp Aff Officer
1,347$144.811.1%120KSep 10, 2026Sep 11, 2026
Wettan Cain
EVP Gen Counsel, Legal & Comp
285$144.813.2%8.8KSep 10, 2026Sep 11, 2026
Dietmar Berger
Chief Medical Officer
263$144.811.3%20KSep 10, 2026Sep 11, 2026

"% of total stake" is the shares in this event against all the vested shares the person held that day, across every share class and holding entity, after that day's vesting. "n/a" means the person's holdings don't reconcile, or the row is a purchase. "Holdings record incomplete" means more shares were sold than the filings show the person held that day, so a percentage would be wrong.

Is this normal? More than usual: about 2.8x the 5-year average. 7 insiders sold; the average is 3 a year. Year by year
Latest filing: Filed Oct 2 for a sale on Oct 1. Daniel O'Day sold 15K shares ($2.2M) under a disclosed plan. Filing
83 SEC ownership filings in the period · See the evidence

What stands out

Daniel O'Day sold 64% of vested holdings: 376K shares for $52.4M, all under a disclosed plan.Largest sale, Feb 5, 2026
Andrew Dickinson sold 35K shares (22% of starting holdings), but 72K more vested, so the stake grew (from 160K to 164K).Largest sale, Feb 17, 2026

Percentages cover 9 of 16 officers and directors. 7 are left out

i
Left out: Johanna Mercier, Deborah Telman, Anthony Welters, Jeffrey Bluestone and Kelly Kramer (most of their shares vested during the period, so a percentage would mislead); Dietmar Berger and Erin Burkhart (held no vested shares at the start).
Disclosed company stock is not an insider's whole wealth.

Who sold, and how much of their stake

Officers and directors, past 12 months. Each bar is 100% of that person's own stake; not comparable between people. The stake is the vested shares held at the start of the period (Oct 9, 2025); the gold part is what they sold.

SoldRest of starting stakeAdded during the period
Daniel O'Day
Chairman & CEO, Director
64% · $52.4MDisclosed plan
Johanna Mercier
Chief Comm & Corp Aff Officer
Sold $18.5M (plan status beside the amount). That is 54% of the shares held or received (after tax withholding) during the period†. A share of the starting stake is not shown: most of these shares arrived during the period. Why
$18.5MDisclosed plan
Deborah Telman
EVP, Corporate Affairs & GC
Sold $6.6M (plan status beside the amount). That is 55% of the shares held or received (after tax withholding) during the period†. A share of the starting stake is not shown: most of these shares arrived during the period. Why
$6.6MDisclosed plan
Andrew Dickinson
Chief Financial Officer
Sold 22%, but 16K shares were added (mostly vesting), so the stake grew
22% · $4.7MDisclosed plan
Anthony Welters
Director
Sold $2.7M (plan status beside the amount). That is 58% of the shares held or received (after tax withholding) during the period†. A share of the starting stake is not shown: most of these shares arrived during the period. Why
$2.7MDisclosed plan
All 7 sellers

Selling by month

Officers and directors, Oct 2025 to Oct 2026. Each sale is counted once: under a disclosed plan, else to cover taxes, else no plan disclosed.

Disclosed planNo plan disclosedOne dollar scale for every month; the tallest bar is labeled
Oct 2025: $1.8M under a disclosed planOctNov 2025: $12.4M under a disclosed planNov 2025: $625K no plan disclosedNovDec 2025: $2.0M under a disclosed planDecJan 2026: $18.4M under a disclosed planJanFeb 2026: $23.6M under a disclosed plan$23.6MFebMar 2026: $2.2M under a disclosed planMarApr 2026: $2.1M under a disclosed planAprMay 2026: $4.1M under a disclosed planMayJun 2026: $2.7M under a disclosed planJunJul 2026: $2.7M under a disclosed planJulAug 2026: $9.6M under a disclosed planAugSep 2026: $3.1M under a disclosed planSepOct 2026: $2.2M under a disclosed planOct

Common questions

Is the Gilead Sciences CEO selling stock?

Yes. Daniel O'Day sold 376K shares ($52.4M, 64% of starting holdings) in the past 12 months, all of it under a trading plan disclosed in the filings.

Why are Gilead Sciences insiders selling?

Filings rarely give a reason, and we don't guess at one. What they show is how the sales were made: 99% of sales by value ran under 10b5-1 trading plans disclosed in the filings and 0.7% had no disclosed plan. A trading plan schedules sales in advance.

Are any Gilead Sciences insiders buying?

No. Officers and directors reported no purchases in the past 12 months.

How much of their stake did Gilead Sciences insiders sell?

About 48% overall. As a group they still hold 99% of their starting shares. That covers the 12 months to Oct 9, 2026 and counts vested shares reported on SEC Forms 3, 4 and 5, which is not an insider's whole wealth.

The evidence

Who sold7 officers and directors: amount, % of holdings, trading plan
Who soldAmount% of holdingsTrading plan
Daniel O'Day
Chairman & CEO, Director
$52.4M
376K shares
64%Disclosed plan
Johanna Mercier
Chief Comm & Corp Aff Officer
$18.5M
136K shares
54%†
i
† Most of the shares Johanna Mercier sold arrived during the period, so this is shares sold as a share of the 113K held at the start plus the 172K received, less 33K withheld by the company for taxes.
Disclosed plan
Deborah Telman
EVP, Corporate Affairs & GC
$6.6M
54K shares
55%†
i
† Most of the shares Deborah Telman sold arrived during the period, so this is shares sold as a share of the 43K held at the start plus the 54K received, less 241 withheld by the company for taxes.
Disclosed plan
Andrew Dickinson
Chief Financial Officer
$4.7M
35K shares
22%Disclosed plan
Anthony Welters
Director
$2.7M
18K shares
58%†
i
† Most of the shares Anthony Welters sold arrived during the period, so this is shares sold as a share of the 12K held at the start plus the 19K received, less 0 withheld by the company for taxes.
Disclosed plan
Jeffrey Bluestone
Director
$2.0M
15K shares
60%†
i
† Most of the shares Jeffrey Bluestone sold arrived during the period, so this is shares sold as a share of the 8.9K held at the start plus the 16K received, less 0 withheld by the company for taxes.
68% under a disclosed plan 32% no plan disclosed
Kelly Kramer
Director
$713K
5.6K shares
81%†
i
† Most of the shares Kelly Kramer sold arrived during the period, so this is shares sold as a share of the 1.3K held at the start plus the 5.6K received, less 0 withheld by the company for taxes.
Disclosed plan
The full ownership picture16 of 16 insiders fully reconciled · 16 officers and directors

Vested shares across all share classes, held directly and through trusts, LLCs and family members, as reported on SEC Forms 3, 4 and 5. Unvested awards and options are never counted as owned shares.

InsiderHeld Oct 9, 2025SoldHeld Oct 9, 2026Still held
Daniel O'Day
Chairman & CEO, Director
591K−376K567K96%
Vesting, gifts, unvested awards and holding lines for Daniel O'Day
+279Kshares vested or exercised
0gifted (net of own trusts)
−98Kwithheld by the company for taxes
98K → 83Kunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock591,203566,683

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
279,130$75.12Mar 10, 2034$20.5M
169,690$117.21Mar 10, 2035$5.3M
122,755$148.56Mar 10, 2036$8K

Estimate: options held × ($148.63 − strike price), using the most recent insider trade price on Form 4 (Oct 1, 2026), not a market close.

Andrew Dickinson
i
Minor difference of 211 shares. Difference is under 0.5% of holdings. Some sales match sales reported by Johanna Mercier exactly (date, shares and price). Possibly the same shares reported by both; the filings don't confirm it.
Chief Financial Officer
160K−35K164K+2.8%
Vesting, gifts, unvested awards and holding lines for Andrew Dickinson
+16Kshares vested or exercised
0gifted (net of own trusts)
−32Kwithheld by the company for taxes
98K → 92Kunvested awards, start → end
  • Some sales match sales reported by Johanna Mercier exactly (date, shares and price). Possibly the same shares reported by both; the filings don't confirm it.
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock159,555164,096

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
78,515$57.92Mar 10, 2032$7.1M
87,970$75.12Mar 10, 2034$6.5M
49,020$117.21Mar 10, 2035$1.5M
35,880$148.56Mar 10, 2036$2K

Estimate: options held × ($148.63 − strike price), using the most recent insider trade price on Form 4 (Oct 1, 2026), not a market close.

Reconciliation: minor difference of 211 shares. Difference is under 0.5% of holdings.

Johanna Mercier
i
Some sales match sales reported by Andrew Dickinson exactly (date, shares and price). Possibly the same shares reported by both; the filings don't confirm it.
Chief Comm & Corp Aff Officer
113K−136K117Knot meaningful
Vesting, gifts, unvested awards and holding lines for Johanna Mercier
+116Kshares vested or exercised
0gifted (net of own trusts)
−33Kwithheld by the company for taxes
32K → 25Kunvested awards, start → end
  • Some sales match sales reported by Andrew Dickinson exactly (date, shares and price). Possibly the same shares reported by both; the filings don't confirm it.
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock113,193116,684

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
69,960$72.34Mar 10, 2030$5.3M
87,970$75.12Mar 10, 2034$6.5M
49,020$117.21Mar 10, 2035$1.5M
35,880$148.56Mar 10, 2036$2K

Estimate: options held × ($148.63 − strike price), using the most recent insider trade price on Form 4 (Oct 1, 2026), not a market close.

Diane Wilfong
i
New Form 3 filed 2025-03-20; earlier filings set aside.
Interim Corp Controller & CAO
46K046Kno sales
Vesting, gifts, unvested awards and holding lines for Diane Wilfong
0shares vested or exercised
0gifted (net of own trusts)
7.9K → 7.9Kunvested awards, start → end
  • New Form 3 filed 2025-03-20; earlier filings set aside.
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock46,25946,259

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
1,070$63.91Mar 10, 2031$91K
5,891$57.92Mar 10, 2032$534K
6,560$75.12Mar 10, 2034$482K
5,403$79.50Mar 10, 2033$373K
5,240$117.21Mar 10, 2035$165K

Estimate: options held × ($148.63 − strike price), using the most recent insider trade price on Form 4 (Oct 1, 2026), not a market close.

Deborah Telman
EVP, Corporate Affairs & GC
43K−54K44Knot meaningful
Vesting, gifts, unvested awards and holding lines for Deborah Telman
+54Kshares vested or exercised
0gifted (net of own trusts)
−241withheld by the company for taxes
73K → 72Kunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock43,40243,676

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
12,155$60.75Jul 25, 2032$1.1M
37,799$75.12Mar 10, 2034$2.8M
33,940$117.21Mar 10, 2035$1.1M

Estimate: options held × ($148.63 − strike price), using the most recent insider trade price on Form 4 (Oct 1, 2026), not a market close.

Jacqueline Barton
i
Includes unvested RSUs, amount not disclosed.
Director
26K027Kno sales
Vesting, gifts, unvested awards and holding lines for Jacqueline Barton
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
  • Includes unvested RSUs, amount not disclosed.
Held throughShare classOct 9, 2025Oct 9, 2026
Direct
includes unvested RSUs, amount not disclosed
Common Stock26,05627,202

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
12,648$64.92May 8, 2034$1.1M
6,809$98.90May 7, 2035$339K
4,884$130.84Apr 30, 2036$87K

Estimate: options held × ($148.63 − strike price), using the most recent insider trade price on Form 4 (Oct 1, 2026), not a market close.

Harish Manwani
i
Includes unvested RSUs, amount not disclosed.
Director
14K015Kno sales
Vesting, gifts, unvested awards and holding lines for Harish Manwani
0shares vested or exercised
0gifted (net of own trusts)
−224withheld by the company for taxes
none reportedunvested awards, start → end
  • Includes unvested RSUs, amount not disclosed.
Held throughShare classOct 9, 2025Oct 9, 2026
Direct
includes unvested RSUs, amount not disclosed
Common Stock14,09315,015

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
12,648$64.92May 8, 2034$1.1M
6,809$98.90May 7, 2035$339K
4,884$130.84Apr 30, 2036$87K

Estimate: options held × ($148.63 − strike price), using the most recent insider trade price on Form 4 (Oct 1, 2026), not a market close.

Javier Rodriguez
i
Includes unvested RSUs, amount not disclosed.
Director
12K013Kno sales
Vesting, gifts, unvested awards and holding lines for Javier Rodriguez
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
  • Includes unvested RSUs, amount not disclosed.
Held throughShare classOct 9, 2025Oct 9, 2026
Direct
includes unvested RSUs, amount not disclosed
Common Stock12,21813,364

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
12,648$64.92May 8, 2034$1.1M
6,809$98.90May 7, 2035$339K
4,884$130.84Apr 30, 2036$87K

Estimate: options held × ($148.63 − strike price), using the most recent insider trade price on Form 4 (Oct 1, 2026), not a market close.

Anthony Welters
i
Includes unvested RSUs, amount not disclosed.
Director
12K−18K13Knot meaningful
Vesting, gifts, unvested awards and holding lines for Anthony Welters
+18Kshares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
  • Includes unvested RSUs, amount not disclosed.
Held throughShare classOct 9, 2025Oct 9, 2026
Direct
includes unvested RSUs, amount not disclosed
Common Stock11,74812,894

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
5,569$61.35May 5, 2032$486K
12,648$64.92May 8, 2034$1.1M
6,809$98.90May 7, 2035$339K
4,884$130.84Apr 30, 2036$87K

Estimate: options held × ($148.63 − strike price), using the most recent insider trade price on Form 4 (Oct 1, 2026), not a market close.

Jeffrey Bluestone
i
Includes unvested RSUs, amount not disclosed.
Director
8.9K−15K10Knot meaningful
Vesting, gifts, unvested awards and holding lines for Jeffrey Bluestone
+15Kshares vested or exercised
0gifted (net of own trusts)
5.7K → 5.7Kunvested awards, start → end
  • Includes unvested RSUs, amount not disclosed.
Held throughShare classOct 9, 2025Oct 9, 2026
Direct
includes unvested RSUs, amount not disclosed
Common Stock8,92010,066

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
11,395$61.35May 5, 2032$995K
7,648$64.92May 8, 2034$640K
6,809$98.90May 7, 2035$339K
4,884$130.84Apr 30, 2036$87K

Estimate: options held × ($148.63 − strike price), using the most recent insider trade price on Form 4 (Oct 1, 2026), not a market close.

Sandra Horning
i
Includes unvested RSUs, amount not disclosed.
Director
5.1K06.3Kno sales
Vesting, gifts, unvested awards and holding lines for Sandra Horning
0shares vested or exercised
0gifted (net of own trusts)
7.8K → 7.8Kunvested awards, start → end
  • Includes unvested RSUs, amount not disclosed.
Held throughShare classOct 9, 2025Oct 9, 2026
Direct
includes unvested RSUs, amount not disclosed
Common Stock5,1476,293

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
12,648$64.92May 8, 2034$1.1M
6,809$98.90May 7, 2035$339K
4,884$130.84Apr 30, 2036$87K

Estimate: options held × ($148.63 − strike price), using the most recent insider trade price on Form 4 (Oct 1, 2026), not a market close.

Ted Love
i
Includes unvested RSUs, amount not disclosed.
Director
4.3K05.5Kno sales
Vesting, gifts, unvested awards and holding lines for Ted Love
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
  • Includes unvested RSUs, amount not disclosed.
Held throughShare classOct 9, 2025Oct 9, 2026
Direct
includes unvested RSUs, amount not disclosed
Common Stock4,3385,484

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
2,996$76.96Feb 2, 2034$215K
12,648$64.92May 8, 2034$1.1M
6,809$98.90May 7, 2035$339K
4,884$130.84Apr 30, 2036$87K

Estimate: options held × ($148.63 − strike price), using the most recent insider trade price on Form 4 (Oct 1, 2026), not a market close.

Wettan Cain
i
Started reporting during the period; starting holdings are from the Form 3.
EVP Gen Counsel, Legal & Comp
3.9K08.8Kno sales
Vesting, gifts, unvested awards and holding lines for Wettan Cain
+8.4Kshares vested or exercised
0gifted (net of own trusts)
−4.1Kwithheld by the company for taxes
17K → 30Kunvested awards, start → end
  • Started reporting during the period; starting holdings are from the Form 3.
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock3,9448,759

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
3,072$57.92Mar 10, 2032$279K
4,412$79.50Mar 10, 2033$305K
6,996$75.12Mar 10, 2034$514K
5,140$117.21Mar 10, 2035$161K
18,885$148.56Mar 10, 2036$1K

Estimate: options held × ($148.63 − strike price), using the most recent insider trade price on Form 4 (Oct 1, 2026), not a market close.

Kelly Kramer
Director
1.3K−5.6K1.3Knot meaningful
Vesting, gifts, unvested awards and holding lines for Kelly Kramer
+5.6Kshares vested or exercised
0gifted (net of own trusts)
19K → 20Kunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock1,3391,339

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
12,648$64.92May 8, 2034$1.1M
6,809$98.90May 7, 2035$339K
4,884$130.84Apr 30, 2036$87K

Estimate: options held × ($148.63 − strike price), using the most recent insider trade price on Form 4 (Oct 1, 2026), not a market close.

Dietmar Berger
Chief Medical Officer
0020Kno sales
Vesting, gifts, unvested awards and holding lines for Dietmar Berger
+20Kshares vested or exercised
0gifted (net of own trusts)
−8.5Kwithheld by the company for taxes
58K → 46Kunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock019,522

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
37,710$117.21Mar 10, 2035$1.2M
31,475$148.56Mar 10, 2036$2K

Estimate: options held × ($148.63 − strike price), using the most recent insider trade price on Form 4 (Oct 1, 2026), not a market close.

Erin Burkhart
SVP, Controllership
001.5Kno sales
Vesting, gifts, unvested awards and holding lines for Erin Burkhart
+2.2Kshares vested or exercised
0gifted (net of own trusts)
−768withheld by the company for taxes
8.9K → 9Kunvested awards, start → end
Held throughShare classOct 9, 2025Oct 9, 2026
DirectCommon Stock01,455

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
5,455$148.56Mar 10, 2036$363

Estimate: options held × ($148.63 − strike price), using the most recent insider trade price on Form 4 (Oct 1, 2026), not a market close.

16 of 16 insiders fully reconciled: starting holdings plus reported transactions match ending holdings (15 exactly, 1 with a minor or footnoted difference). Percentages cover 9 of 16 officers and directors. Left out: Johanna Mercier, Deborah Telman, Anthony Welters, Jeffrey Bluestone and Kelly Kramer (most of their shares vested during the period, so a percentage would mislead); Dietmar Berger and Erin Burkhart (held no vested shares at the start). "Still held" compares ending with starting vested shares; a plus sign means the holding grew.

What explains the selling$87.6M of sales by plan status, purpose, seller and month

Officer and director open-market sales: $87.6M across 639,537 shares. Plan status and stated purpose are separate questions, and a sale can have both.

By plan status

The lighter segment is sales with no plan disclosed in the filing ($625K), including tax-related sales outside a plan.

No plan disclosed · $625K

Sales with no 10b5-1 plan and no tax reference in the filing. $625K of it is Jeffrey Bluestone. No plan disclosed is a statement about the filing, not about why the sale happened. Largest such sale: Jeffrey Bluestone, Nov 28, 2025

Taxes

176,350 shares ($24.8M) were withheld by the company for taxes, which isn't a market sale.

SellerShares soldProceedsUnder a disclosed planShare of totalSales dates
Daniel O'Day
Chairman & CEO, Director
376K$52.4M100%60%Oct 28, 2025 to Oct 1, 2026
Johanna Mercier
Chief Comm & Corp Aff Officer
136K$18.5M100%21%Oct 15, 2025 to Sep 15, 2026
Deborah Telman
EVP, Corporate Affairs & GC
54K$6.6M100%8%Nov 12, 2025 to Nov 12, 2025
Andrew Dickinson
Chief Financial Officer
35K$4.7M100%5%Oct 15, 2025 to Sep 15, 2026
Anthony Welters
Director
18K$2.7M100%3%Aug 26, 2026 to Aug 26, 2026
Jeffrey Bluestone
Director
15K$2.0M68%2%Nov 28, 2025 to Aug 20, 2026
Kelly Kramer
Director
5.6K$713K100%0.8%Nov 26, 2025 to Nov 28, 2025

Sales by month

MonthSale proceedsDisclosed planTo cover taxesNo plan disclosed
Oct 2025$1.8M$1.8M$0$0
Nov 2025$13.0M$12.4M$0$625K
Dec 2025$2.0M$2.0M$0$0
Jan 2026$18.4M$18.4M$0$0
Feb 2026$23.6M$23.6M$0$0
Mar 2026$2.2M$2.2M$0$0
Apr 2026$2.1M$2.1M$0$0
May 2026$4.1M$4.1M$0$0
Jun 2026$2.7M$2.7M$0$0
Jul 2026$2.7M$2.7M$0$0
Aug 2026$9.6M$9.6M$0$0
Sep 2026$3.1M$3.1M$0$0
Oct 2026$2.2M$2.2M$0$0
Is this normal? Selling year by year5 earlier years to compare with

More than usual: about 2.8x the 5-year average. 7 insiders sold; the average is 3 a year.

12 months endingShares soldInsiders who soldProceeds
Oct 9, 2026
Latest 12 months
640K7$87.6M
Oct 9, 2025
1 year earlier
899K5$88.3M
Oct 9, 2024
2 years earlier
100K3$8.1M
Oct 10, 2023
3 years earlier
50K3$4.0M
Oct 10, 2022
4 years earlier
19K1$1.3M
Oct 10, 2021
5 years earlier
67K4$4.5M

Open-market sales (Form 4 code S) by people who were officers or directors, in split-adjusted shares. Earlier years include people who have since left. A sale that an outside holder also reports (a family trust, a fund) is counted with outside holders in every year. Shares, not dollars, are compared, so a change in the stock price doesn't look like a change in selling. Years the filings don't fully cover are shown but left out of the average.

Known gaps and uncertaintyEvery officer and director reconciles

Every officer and director reconciles for this period.

Andrew Dickinson: minor difference of 211 shares. Difference is under 0.5% of holdings.

Inferred rename: "Daughter/s" is treated as the same holder as "Daughters", because the old name was never reported again and the new one opened with the same balance (76,800 shares). Old name, new name

Inferred rename: "Investment Partnership" is treated as the same holder as "Partnership", because the old name was never reported again and the new one opened with the same balance (3,080 shares). Old name, new name

Inferred rename: "immediate family member" is treated as the same holder as "family member", because the old name was never reported again and the new one opened with the same balance (320 shares). Old name, new name

Inferred typo: the share class "Coomon Stock" is treated as the same class as "Common Stock" on 1 holding line, because the two spellings are nearly identical and each balance carried over exactly. Example (Norbert Bischofberger, 298,788 shares): old title, new title

Inferred typo: the share class "Commn Stock" is treated as the same class as "Common Stock" on 1 holding line, because the two spellings are nearly identical and each balance carried over exactly. Example (Anthony Caracciolo, 314,072 shares): old title, new title

Inferred typo: the share class "Common Stocj" is treated as the same class as "Common Stock" on 1 holding line, because the two spellings are nearly identical and each balance carried over exactly. Example (Paul Berg, 50,400 shares): old title, new title

External context: we only cite outside events when a documented connection exists. None is shown for this period.

Sources and methodology2,008 filings from SEC EDGAR, and how we read them

All 2,008 Forms 3, 4 and 5 filed for Gilead Sciences (SEC CIK 882095) from Apr 21, 2003 to Oct 2, 2026, retrieved from SEC EDGAR on Oct 9, 2026. Prices are the ones reported in each filing, often weighted averages. 27 filings were left out because Gilead Sciences filed them as an owner of another company's stock. 6 older filings exist only on paper and could not be read.

Probable 2-for-1 stock split on or before Sep 3, 2004 (split date stated in a footnote). Splits aren't reported as transactions; 7 holding lines changed by exactly this ratio, so earlier share counts are restated.

Probable 2-for-1 stock split on or before Jun 22, 2007 (split date stated in a footnote). Splits aren't reported as transactions; 10 holding lines changed by exactly this ratio, so earlier share counts are restated.

Probable 2-for-1 stock split on or before Jan 28, 2013 (first filing that shows post-split balances). Splits aren't reported as transactions; 11 holding lines changed by exactly this ratio, so earlier share counts are restated.

Holdings. Each holding line (a share class plus an owner, such as a trust or LLC) carries its last reported balance forward. Entities first reported during the period start at zero, so transfers between an insider's own trusts don't count as selling. Lines not reported for three years or more are listed separately and left out of totals.

Sales. A sale counts as under a 10b5-1 plan if its footnote cites one or the filing's Rule 10b5-1 box is checked, and as tax-related if its footnote cites tax obligations or sell-to-cover. Shares withheld by the company for taxes are listed separately. Sales with neither attribute are labeled "no plan disclosed".

Full methodology

Former or inactive filers (37)No filing in 18 months; last reported balances, not in any total
NameLast filedLast reported balance
Sandra PattersonMar 12, 202539,453 shares, last reported balance as of Mar 10, 2025
Merdad ParseyDec 11, 202482,850 shares, last reported balance as of Dec 10, 2024
Kevin LoftonMar 29, 2024101,095 shares, last reported balance as of May 3, 2023
Brett PletcherJun 13, 202233,426 shares, last reported balance as of Jun 10, 2022
Richard WhitleyMay 7, 202133,058 shares, last reported balance as of May 6, 2021
Olsen WoldMay 7, 2021102,060 shares, last reported balance as of May 6, 2021
Gayle WilsonMay 7, 2020329,052 shares, last reported balance as of May 5, 2020
John CoganMay 5, 202054,860 shares, last reported balance as of May 4, 2020
Laura HamillMay 10, 20196,340 shares, last reported balance as of May 8, 2019
Robin WashingtonMar 14, 2019138,943 shares, last reported balance as of Feb 25, 2019
Gregg AltonMar 5, 201958,046 shares, last reported balance as of Feb 15, 2019
John MartinFeb 8, 20193,619,142 shares, last reported balance as of Feb 6, 2019
John McHutchisonFeb 8, 201937,828 shares, last reported balance as of Feb 6, 2019
John MilliganNov 29, 20181,797,816 shares, last reported balance as of Nov 27, 2018
Nicholas MooreApr 2, 201812,233 shares, last reported balance as of Mar 1, 2018
Norbert BischofbergerFeb 23, 20182,343,802 shares, last reported balance as of Feb 21, 2018
Kevin YoungFeb 23, 201825,612 shares, last reported balance as of Feb 21, 2018
James MeyersFeb 23, 2018137,476 shares, last reported balance as of Feb 21, 2018
John MadiganMay 11, 201730,484 shares, last reported balance as of May 9, 2017
Paul CarterAug 3, 201662,305 shares, last reported balance as of Aug 1, 2016
Etienne DavignonMay 10, 2016838,652 shares, last reported balance as of May 6, 2016
Carla HillsMay 10, 201639,285 shares, last reported balance as of May 6, 2016
James DennyJan 9, 2013616,116 shares, last reported balance as of Dec 7, 2012
Kristen MetzaNov 5, 201250,610 shares, last reported balance as of Nov 1, 2012
Gordon MooreAug 16, 20123,546,674 shares, last reported balance as of Aug 14, 2012
Paul BergMay 13, 2011135,728 shares, last reported balance as of May 12, 2011
Louis LangeMay 8, 2009No balance on record
Caroline DorsaDec 17, 20074,000 shares, last reported balance as of Nov 5, 2007
William LeeMay 4, 2007234,644 shares, last reported balance as of May 2, 2007
Taiyin YangMay 2, 2007601,492 shares, last reported balance as of May 2, 2007
John TooleApr 26, 2007238,692 shares, last reported balance as of Apr 25, 2007
Anthony CaraccioloJan 24, 2007No balance on record
Alan MontgomeryJan 24, 200757,440 shares, last reported balance as of Sep 11, 2006
George ShultzAug 10, 2005540,000 shares, last reported balance as of Jul 22, 2005
Mark PerryFeb 4, 20041,613,120 shares, last reported balance as of Feb 3, 2004
Michael InouyeJan 30, 200461,680 shares, last reported balance as of Jan 28, 2004
Cordell HullNov 6, 200380,000 shares, last reported balance as of Nov 4, 2003

Spotted something wrong on this page? Report an error. We check every report against the SEC filing and list what we fix in the corrections log.