undamentalytics Newsletter

Fastly, Inc. insider trading

Every open-market purchase and sale by Fastly, 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.
Fastly, 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 Fastly, Inc.’s insiders pay?

From June 21, 2019 to September 18, 2026, 23 insiders reported 16 open-market purchases and 154 sales not made under a pre-set plan in Fastly, Inc. Twelve months after each purchase was reported, the shares were +203.0% against the S&P 500 on average (median +265.4%), over 16 purchases with a full year of prices; 81% beat the index. After sales, the shares moved +20.9% 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 June 24, 2019 into $7,738 by November 2, 2026, −3.4% a year. It held shares 53% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $18,362 (+8.6% a year), and held throughout $28,604 (+15.4%).

$0$20.0k$40.0k$60.0k 20192020202120222023202420252026 $28.6k$18.4k$7.7k
Copying Fastly, Inc.'s insidersS&P 500, same days investedS&P 500, held throughout $10,000 copying every open-market purchase by Fastly, Inc.'s insiders from June 24, 2019, before costs and taxes, marked weekly. Uninvested money earns the Treasury bill rate; the portfolio held shares 53% of the time.
Fastly, Inc.: each insider's record
InsiderRolePurchases12 months after their purchasesBeat the S&P 500Sales12 months after their salesLatest report
Kisling Ronald W Chief Financial Officer 0 — — 40 +5.7% (40) July 17, 2025
Nightingale Todd CEO 0 — — 19 +30.6% (19) May 30, 2025
Bergman Artur Chief Technology Officer 0 — — 16 −43.5% (10) September 2, 2026
Shirk Brett Executive Vice President, CRO 0 — — 14 −57.6% (14) December 4, 2023
Lovett Scott R. President, Go to Market 0 — — 12 +136.3% (3) September 18, 2026
Bixby Joshua CEO 0 — — 10 −45.2% (10) August 18, 2022
Compton Charles Lacey III CEO 0 — — 8 +176.8% (4) June 2, 2026
Luongo Paul General Counsel 0 — — 7 −67.8% (7) February 17, 2022
Dhaliwal Sunil Director 0 — — 6 +140.1% (6) September 4, 2020
Abdiel Capital Management, LLC 10% owner 5 +178.2% (5) 80% 0 — May 26, 2020
Wong Richard CFO 0 — — 5 — August 20, 2026
Abdiel Capital LP 10% owner 4 +231.2% (4) 75% 0 — May 10, 2021
Daniels Richard Devon Director 1 +2.3% (1) 100% 3 +162.1% (1) August 11, 2026
Hornik David Director 0 — — 4 +159.2% (4) November 15, 2022
Carlborg W Eric 10% owner 0 — — 3 +256.8% (3) March 6, 2020
Lares Adriel G Chief Financial Officer 0 — — 3 −80.5% (3) May 20, 2021
Abdiel Capital Advisors, LP 10% owner 2 +343.4% (2) 100% 0 — August 5, 2019
Abdiel Qualified Master Fund LP 10% owner 2 +107.2% (2) 50% 0 — March 10, 2021
Moran Colin T. 10% owner 2 +264.5% (2) 100% 0 — March 17, 2020
Ford Jeffrey Principal Accounting Officer 0 — — 1 — September 18, 2026
Griffith William J.G. 10% owner 0 — — 1 +229.5% (1) March 19, 2020
Hartenbaum Howard 10% owner 0 — — 1 +250.3% (1) November 15, 2019
Jacobsen Mark 10% owner 0 — — 1 +250.3% (1) November 15, 2019

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 Fastly, Inc.

Months when 2 or more insiders became net buyers, or 3 or more net sellers, of Fastly, 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 −9.8% against the index. After 8 selling crowds, +59.7%. 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 27, 20263 selling−17.7%+7.8%not yet
March 31, 20253 selling−0.5%+15.3%+392.7%
March 31, 20234 selling−19.4%+0.9%−57.2%
November 30, 20223 selling+55.3%+64.9%+72.5%
September 30, 20213 selling−19.3%−63.0%−61.8%
September 30, 20204 selling−15.0%−45.5%−86.8%
March 31, 20204 selling+328.4%+362.0%+198.2%
November 29, 20196 selling+3.2%+135.3%+297.9%
June 28, 20192 buying+5.4%−9.8%+279.4%

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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