GILD

GILEAD SCIENCES, INC.

NasdaqHealthcareBiological Products, (No Diagnostic Substances)

Insider activity for last month from 09/19 to 10/19.

How these metrics are calculated

Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.

Total buying$00 buys
Total selling$3.15M4 sells
Net open-market−$3.15MBuying minus selling
Active insiders4Distinct reporting owners

Insider activity report

Calendar-month buckets within the selected date range

Latest filing: Oct 16, 2026

Open-market transaction mix · 4 transactions in the selected period
0 buys0%·100%4 sells

Code A includes awards, grants and other acquisitions; these are not open-market buys. A rolling period can include partial calendar months.

View exact monthly counts and disclosed values
Monthly activity within the selected period; unknown values remain unknown.
MonthBuysSellsAwards (A)Buy valueSell valueNet P/S value
Sep 2026000$0$0$0
Oct 2026040$0$3.15M-$3.15M

Distinct insiders active

Reporting-owner CIKs by month · peak Oct 2026 (3)
Sep 2026: 1 insidersOct 2026: 3 insiders
Sep 2026Oct 2026
4distinct insiders in selected period
Largest insider activity
By absolute net disclosed value · current transaction page
4 insiders
  • OP
    O'Day Daniel PatrickCHAIR, CEO · 0 buys · 2 sells · 0 awards (A)
    -$2.2Mlast 10/02/2026
  • DD
    Dickinson Andrew DCFO · 0 buys · 1 sells · 0 awards (A)
    -$468.7klast 10/16/2026
  • MJ
    Mercier JohannaCC, CAO · 0 buys · 1 sells · 0 awards (A)
    -$468.7klast 10/16/2026
  • BE
    Burkhart ErinSVP, CTRL · 0 buys · 0 sells · 0 awards (A)
    —last 09/23/2026

GILD transaction history

Newest filings · 20 transactions per page

Latest insider transactions

Form 4 filings from last month.
Newest company filings
CompanyInsiderActivityDisclosed valueFiled (ET)
GILDGILEAD SCIENCES, INC.
Dickinson Andrew DCFOS · sale10b5-1 detectedSEC filing ↗-$468kView disclosure →
GILDGILEAD SCIENCES, INC.
Mercier JohannaCC · CAOS · sale10b5-1 detectedSEC filing ↗-$468kView disclosure →
GILDGILEAD SCIENCES, INC.
O'Day Daniel PatrickCHAIR · CEOS · sale10b5-1 detectedSEC filing ↗-$445kView disclosure →
GILDGILEAD SCIENCES, INC.
O'Day Daniel PatrickCHAIR · CEOS · sale10b5-1 detectedSEC filing ↗-$1.77MView disclosure →
GILDGILEAD SCIENCES, INC.
Burkhart ErinSVP · CTRLM · exerciseDerivative securitySEC filing ↗UnknownView disclosure →
GILDGILEAD SCIENCES, INC.
Burkhart ErinSVP · CTRLF · withholdingSEC filing ↗-$117kView disclosure →
GILDGILEAD SCIENCES, INC.
Burkhart ErinSVP · CTRLM · exerciseSEC filing ↗UnknownView disclosure →
Recent filing activity
Most recent 6 transactions on this page · color = transaction code

Filing detail checks

Secondary metrics for the selected period
Largest buy-
Largest sale$1.77M
10b5-1 detected4
Amended rows0

Transaction codes

By Form 4 transaction code in selected period
7transactionstxns
  • S · Open-market sells · dominant4 · 57%
  • M · Option exercise2 · 29%
  • F · Tax withholding1 · 14%

Activity by reported role

A joint filing can contribute to multiple roles
CTRL3
SVP3
Chief executive officer2
CHAIR2
CAO1
CC1
Chief financial officer1

Reported Holdings After

Separated by insider, security, and ownership type

Burkhart ErinCommon Stock · Direct
2.2k1.5kSep 22, 2026Sep 22, 2026
1,455Sep 22, 2026
Burkhart ErinRestricted Stock Unit · Direct
9.0k9.0kSep 22, 2026Sep 22, 2026
9,022Sep 22, 2026
Mercier JohannaCommon Stock · Direct
113.7k113.7kOct 15, 2026Oct 15, 2026
113,684Oct 15, 2026
Dickinson Andrew DCommon Stock · Direct
161.1k161.1kOct 15, 2026Oct 15, 2026
161,096Oct 15, 2026

These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.

Filing activity heatmap
Current transaction page only · each cell is a filing date · buys green, sells red
3 active days
Sep 19 → Oct 19
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GILEAD SCIENCES, INC. Insider Activity FAQ

SEC Form 4 context

Who recently reported transactions at GILEAD SCIENCES, INC.?

Dickinson Andrew D, Mercier Johanna, O'Day Daniel Patrick, Burkhart Erin.

When was the latest reported open-market purchase?

No code-P purchase is available for this period.

When was the latest reported open-market sale?

Dickinson Andrew D reported a sale on Oct 15, 2026 valued at $468k. Read the SEC filing.

What is the recent purchase and sale balance?

Net open-market selling in the selected period was $3,155,827.50. Sales can occur for many non-investment reasons.

Where can I see the original SEC filing?

Every transaction row and latest-activity fact links to its original SEC filing.

What do these Form 4 transaction codes mean?

P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.