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Pacific Biosciences of California, Inc. (PACB)

Pacific Biosciences of California, Inc. (PACB) Insider Trading

Directors, officers and holders of more than 10% of PACB report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.

Recent Form 4 transactions

The 50 most recent of 65 transactions on file: 0 with code P, 14 with code S and 36 with other codes.

DateInsiderCodeShares
Oct 6, 2026Gibson James R IIS Sale661,815
Oct 6, 2026Gibson James R IIM Exercise500,000
Oct 6, 2026Gibson James R IIM Exercise500,000
Aug 17, 2026Van Oene MarkS Sale26,911
Aug 10, 2026Van Oene MarkA Award489,130
Aug 10, 2026Van Oene MarkA Award1,967,888
Jun 3, 2026ORDONEZ KATHYA Award223,492
Jun 3, 2026Ericson William W.A Award223,492
Jun 3, 2026Gibson ChristopherA Award74,497
Jun 3, 2026MILLIGAN JOHN FA Award223,492
Jun 3, 2026MOHR MARSHALLA Award223,492
Jun 3, 2026Smith Christopher MA Award223,492
Jun 3, 2026Valantine HannahA Award223,492
Jun 3, 2026LIVINGSTON RANDALL SA Award223,492
Apr 8, 2026Gibson ChristopherA Award57,473
Apr 8, 2026Gibson ChristopherA Award77,842
Apr 1, 2026Gibson James R IIS Sale88,185
Mar 3, 2026Van Oene MarkS Sale6,504
Mar 3, 2026Farmer MicheleS Sale2,979
Mar 3, 2026Gibson ChristopherA Award73,087
Mar 3, 2026Gibson ChristopherA Award53,913
Mar 3, 2026HENRY CHRISTIAN OS Sale12,497
Feb 27, 2026Farmer MicheleA Award89,835
Feb 27, 2026HENRY CHRISTIAN OA Award920,810
Feb 27, 2026Van Oene MarkA Award1,000,000
Feb 27, 2026Farmer MicheleA Award179,670
Feb 27, 2026Gibson James R IIA Award667,696
Feb 27, 2026HENRY CHRISTIAN OA Award1,841,621
Feb 27, 2026Gibson James R IIA Award333,848
Feb 27, 2026Van Oene MarkA Award500,000
Feb 18, 2026Van Oene MarkS Sale55,107
Feb 18, 2026Farmer MicheleS Sale14,952
Feb 18, 2026HENRY CHRISTIAN OS Sale140,874
Feb 17, 2026Farmer MicheleS Sale35,215
Feb 17, 2026HENRY CHRISTIAN OS Sale331,793
Feb 17, 2026Van Oene MarkS Sale129,790
Aug 18, 2025Van Oene MarkS Sale26,836
Jun 4, 2025MOHR MARSHALLA Award65,000
Jun 4, 2025LIVINGSTON RANDALL SA Award65,000
Jun 4, 2025Valantine HannahA Award65,000
Jun 4, 2025Smith Christopher MA Award32,500
Jun 4, 2025ORDONEZ KATHYA Award65,000
Jun 4, 2025Shapiro LucyA Award65,000
Jun 4, 2025Ericson William W.A Award65,000
Jun 4, 2025MILLIGAN JOHN FA Award65,000
May 19, 2025Farmer MicheleS Sale5,195
Mar 31, 2025Gibson James R IIA Award2,000,000
Mar 31, 2025Gibson James R IIA Award1,000,000
Mar 19, 2025Van Oene MarkA Award449,176
Mar 19, 2025Farmer MicheleA Award89,835

The full Form 4 history is on the PACB company page (Insider Trades card, View all).

Questions about this data

Which insider transactions are open-market trades?

Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.

How quickly are insider trades reported?

A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.

Who has to file Form 4?

Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.

Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.