undamentalytics Newsletter

Pacific Biosciences Of California, Inc. insider trading

Every open-market purchase and sale by Pacific Biosciences Of California, Inc.'s officers, directors and largest shareholders since November 4, 2021, and what the share price did next.

No insider has bought shares on the open market in five years.

Insider purchase Insider sale Marker size reflects trade value. Weekly closes adjusted for splits; may be delayed.
Pacific Biosciences Of California, Inc. insider open-market trades
DateInsiderTrade SharesPriceValue 1M after 3M after 6M after

From insiders' Form 4 filings with the SEC: open-market purchases and sales only (awards, option exercises and shares withheld for tax are excluded), combined to one line per insider per day. "Plan" marks trades the filing says were made under a pre-set Rule 10b5-1 trading plan, which are scheduled in advance. Price changes run from the close on the trade date; hover a figure for the change relative to the S&P 500. Past moves don't predict future ones.

Does following Pacific Biosciences Of California, Inc.’s insiders pay?

From August 11, 2011 to August 18, 2026, 19 insiders reported 17 open-market purchases and 72 sales not made under a pre-set plan in Pacific Biosciences Of California, Inc. Twelve months after each purchase was reported, the shares were −9.9% against the S&P 500 on average (median −17.1%), over 7 purchases with a full year of prices; 29% beat the index. After sales, the shares moved −34.4% against the index over 12 months (a negative figure means selling was the right call). That rests on fewer than 20 purchases, too few to read much into. Buying each purchase the day after it was reported, an equal amount each, held 12 months or until that insider reported a sale, would have turned $10,000 on August 12, 2011 into $6,865 by November 2, 2026, −2.5% a year. It held shares 17% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $16,560 (+3.4% a year), and held throughout $83,592 (+15.0%).

$0$25.0k$50.0k$75.0k 20112013201520172019202120232025 $83.6k$16.6k$6.9k
Copying Pacific Biosciences Of California, Inc.'s insidersS&P 500, same days investedS&P 500, held throughout $10,000 copying every open-market purchase by Pacific Biosciences Of California, Inc.'s insiders from August 12, 2011, before costs and taxes, marked weekly. Uninvested money earns the Treasury bill rate; the portfolio held shares 17% of the time.
Pacific Biosciences Of California, Inc.: each insider's record
InsiderRolePurchases12 months after their purchasesBeat the S&P 500Sales12 months after their salesLatest report
Hunkapiller Michael CEO & President 9 −90.2% (1) 0% 10 +94.9% (8) November 25, 2020
Henry Christian O See Remarks 0 — — 14 −52.5% (8) March 4, 2026
Van Oene Mark See Remarks 0 — — 13 −72.1% (6) August 18, 2026
Farmer Michele See Remarks 0 — — 8 −45.0% (4) February 19, 2026
Kim Susan G. See Remarks 0 — — 8 −57.0% (6) October 2, 2024
Ericson William W. Director 5 −16.4% (4) 0% 1 −88.4% (1) March 17, 2023
Ordonez Kathy Chief Commercial Officer 0 — — 4 −53.2% (4) February 17, 2022
Eidel Jeff See Remarks 0 — — 3 −101.3% (2) August 20, 2024
Phillips James Michael SVP, Research & Development 0 — — 3 −64.8% (1) February 24, 2020
Barnes Susan K EVP, CFO and PAO 0 — — 2 −64.8% (1) February 25, 2020
Botstein David Director 0 — — 1 −88.0% (1) February 17, 2021
Corcoran Kevin P SVP, Market Development 1 +43.4% (1) 100% 0 — March 2, 2015
Dow Brian B VP and PAO 1 +43.4% (1) 100% 0 — March 2, 2015
Fromen Peter Chief Commercial Officer 0 — — 1 +10.4% (1) January 13, 2022
Gibson James R II See Remarks 0 — — 1 — April 3, 2026
Livingston Randall S Director 0 — — 1 −88.0% (1) February 17, 2021
Meline David W Director 1 — — 0 — March 6, 2024
Schaefer Eric Chief Accounting Officer 0 — — 1 −78.2% (1) February 24, 2021
Shapiro Lucy Director 0 — — 1 −88.0% (1) February 17, 2021

Moves are the shares’ return including dividends minus the S&P 500’s, from the close on the first trading day after each report; the number of trades with a finished 12-month window is in brackets. Green means the trade went the insider’s way (a purchase ahead of the index, a sale followed by the shares trailing it). A trade reported both by a director or officer and by a fund or company they are linked to counts once here, under the person. Purchases count only where the share price actually traded was at least $5. These figures describe what the shares did, not why anyone traded. Insiders across all companies.

When several insiders traded Pacific Biosciences Of California, Inc.

Months when 2 or more insiders became net buyers, or 3 or more net sellers, of Pacific Biosciences Of California, Inc. in reports dated in the 91 days before the month end, and how the stock did against the S&P 500 from that month end. After the 1 buying crowd with six months of prices, it averaged −29.0% against the index. After 6 selling crowds, −50.0%. One company's history is too short to judge by; the test across every company is the better guide.

MonthCrowd3 months on, vs S&P 5006 months12 months
February 29, 20245 selling−68.1%−86.0%−90.6%
September 29, 20233 selling+5.8%−81.4%−115.4%
March 31, 20235 selling+2.5%−35.6%−99.7%
February 28, 20225 selling−43.6%−44.0%−18.3%
February 26, 20215 selling−22.0%−24.5%−79.5%
February 28, 20194 selling−7.1%−28.4%−61.8%
March 31, 20152 buying−1.6%−29.0%+43.9%

Colours show whether the crowd was right: green when buyers were followed by a rise above the index, or sellers by a fall below it. Total returns from the month end; past patterns are not a forecast.

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