undamentalytics Newsletter

Quantum Corp insider trading

Every open-market purchase and sale by Quantum Corp'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.
Quantum Corp 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 Quantum Corp’s insiders pay?

From February 25, 2010 to August 5, 2026, 41 insiders reported 39 open-market purchases and 74 sales not made under a pre-set plan in Quantum Corp. Twelve months after each purchase was reported, the shares were −35.0% against the S&P 500 on average (median −42.0%), over 8 purchases with a full year of prices; 13% beat the index. After sales, the shares moved −51.0% 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 14, 2019 into $4,084 by November 2, 2026, −11.7% a year. It held shares 42% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $19,120 (+9.4% a year), and held throughout $29,585 (+16.3%).

$0$10.0k$20.0k$30.0k 20192020202120222023202420252026 $29.6k$19.1k$4.1k
Copying Quantum Corp's insidersS&P 500, same days investedS&P 500, held throughout $10,000 copying every open-market purchase by Quantum Corp's insiders from August 14, 2019, before costs and taxes, marked weekly. Uninvested money earns the Treasury bill rate; the portfolio held shares 42% of the time.
Quantum Corp: each insider's record
InsiderRolePurchases12 months after their purchasesBeat the S&P 500Sales12 months after their salesLatest report
Lerner James J President & CEO 1 −23.2% (1) 0% 15 −55.5% (10) April 23, 2025
Dodson J Michael Senior Vice President, CFO 1 −23.2% (1) 0% 11 −51.3% (8) October 7, 2022
Moorehead Lewis W. Chief Accounting Officer 1 −34.3% (1) 0% 9 −54.8% (7) September 12, 2022
Cabrera Brian E SVP Chief Admin Ofcr & Secy 0 — — 6 −71.0% (3) April 23, 2025
Brc Partners Management Gp, LLC 10% owner 4 — — 0 — April 28, 2020
King Elizabeth Chief Revenue Officer 0 — — 4 −59.9% (4) July 8, 2021
B. Riley Capital Management, LLC 10% owner 3 +42.3% (1) 100% 0 — April 17, 2020
Fichthorn John Director 2 −56.9% (2) 0% 1 −21.6% (1) August 16, 2021
Gacek Jon W President and CEO 3 — — 0 — November 3, 2015
Gianella Kenneth P. Chief Financial Officer 0 — — 3 −75.8% (3) February 5, 2025
Hall Shawn D Senior VP, GC & Secretary 0 — — 3 — November 18, 2010
Hurley John Chief Revenue Officer 0 — — 3 — September 6, 2023
Smith Jeffrey C and related entities 10% owner 0 — — 3 — December 5, 2016
Auvil Paul R. III Director 2 — — 0 — November 6, 2015
Br Dialectic Capital Management, LLC 10% owner 2 — — 0 — January 23, 2019
Brc Group Holdings, Inc. 10% owner 2 — — 0 — April 14, 2020
Brc Partners Opportunity Fund, LP 10% owner 1 — — 1 −80.0% (1) April 28, 2021
Dialectic Antithesis Partners, LP 10% owner 2 — — 0 — January 17, 2019
Esber Edward M Director 2 — — 0 — August 12, 2010
Lopatin Gerald Executive VP, Engineering 0 — — 2 — March 3, 2010
Martella Donald E. JR. SVP, Engineering 0 — — 2 +5.6% (2) August 26, 2020
Meyrath Hugues President & CEO 0 — — 2 +143.9% (1) July 7, 2026
Pacific Investment Management Co LLC 10% owner 0 — — 2 −81.2% (2) April 17, 2025
Powers Gregg J Director 2 — — 0 — November 4, 2015
Stinson Theodore A. SVP, Worldwide Sales 2 — — 0 — January 30, 2012
B. Riley Securities, Inc. 10% owner 1 — — 0 — March 25, 2020
Belluzzo Richard Chief Executive Officer 1 — — 0 — August 12, 2010
Britts William C SVP, Worldwide Sales & Mktg. 1 — — 0 — November 18, 2015
Clark Robert S. SVP, Product Operations 0 — — 1 — February 10, 2014
Craythorne Anthony Chief Revenue Officer 0 — — 1 — August 5, 2026
Feld Peter A 10% owner 1 — — 0 — April 3, 2013
Fuller Dale L Director 1 — — 0 — August 6, 2015
Lee Janae S. SVP, Strategy 0 — — 1 — November 7, 2014
Macpherson Regan J Chief Legal&Compliance Officer 0 — — 1 −38.9% (1) December 23, 2020
Mitchell Mark R and related entities 10% owner 0 — — 1 — December 7, 2016
Rau Raghavendra Director 1 −64.1% (1) 0% 0 — August 16, 2021
Rothman Marc E Director 1 −64.1% (1) 0% 0 — August 16, 2021
Spanjaard Henk Jan Chief Revenue Officer 0 — — 1 −96.1% (1) January 17, 2025
Starboard Principal Co LP 10% owner 1 — — 0 — March 15, 2013
Starboard Value LP 10% owner 1 — — 0 — April 8, 2013

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). The 40 most active of 41 insiders are shown. 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 Quantum Corp

Months when 2 or more insiders became net buyers, or 3 or more net sellers, of Quantum Corp 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 −15.2% against the index. After 7 selling crowds, −33.0%. 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
December 31, 20243 selling−68.8%−90.0%−104.5%
January 31, 20223 selling−55.1%−54.9%−56.3%
November 30, 20213 selling−46.6%−56.0%−67.6%
June 30, 20214 selling−26.1%−33.9%−68.8%
December 31, 20204 selling+36.4%−3.5%−38.5%
August 31, 20204 selling+0.9%+53.8%−16.9%
December 31, 20193 selling−36.5%−46.7%−39.6%
August 30, 20192 buying−11.1%−15.2%−30.7%

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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