Insider Selling on September 18, 2026: DELL, STNG and ADBE Lead $311.3M of Sales

Company insiders filed 136 open-market sales worth $311.3M with the SEC on September 18, 2026, across 85 companies. 81 of them (60%) were made under Rule 10b5-1 plans set up months in advance, which makes a sale less telling. Below are the largest, with what each insider owns now, how the stock has moved since, and each company's insider trading over the past 90 days.

The 15 largest insider sales filed Sep 18

Unscheduled sales

The largest sales made outside Rule 10b5-1 plans by officers and directors rather than 10% owners. These are the sales worth reading.

• Narayen Shantanu (Chair and CEO, Director) at ADBE sold 125,000 shares at $250.76 ($31.3M), cutting their holding 34%.
• Schulze Richard M (Chairman Emeritus) at BBY sold 300,000 shares at $92.51 ($27.8M), their entire reported stake.
• Bugbee Robert L (President, Director) at STNG sold 256,799 shares at $86.28 ($22.2M), cutting their holding 29%.
• Baratta Joseph (Director) at BX sold 100,000 shares at $123.80 ($12.4M), cutting their holding 11%.
• Mackey Cameron Keyser (Chief Operating Officer) at STNG sold 125,000 shares at $89.03 ($11.1M), cutting their holding 14%.
• Sousa Mauad Bruno (Director) at AUGO sold 73,925 shares at $92.40 ($6.8M), cutting their holding 86%.
• Avella Christopher John (Chief Financial Officer) at STNG sold 56,500 shares at $86.57 ($4.9M), cutting their holding 24%.
• Koide Masatoshi (Pres. and Rep. Director, ALIJ) at AFL sold 13,201 shares at $118.01 ($1.6M), cutting their holding 15%.

Biggest stake cuts

The sales that shrank an insider's holding the most, in percent.

• Schulze Richard M (Chairman Emeritus) at BBY sold 300,000 shares at $92.51 ($27.8M), their entire reported stake.
• von Ahn Luis (President & CEO, Co-Founder, Director, 10% Owner) at DUOL sold 28,292 shares at $150.22 ($4.3M), their entire reported stake.
• Carr Edward (CHIEF ACCOUNTING OFFICER) at DNTH sold 20,000 shares at $101.38 ($2.0M), their entire reported stake.
• Cardenuto Rodolpho C (Director) at SMTC sold 5,321 shares at $165.00 ($878K), their entire reported stake.
• Goin Kathleen (Chief Operating Officer) at PVLA sold 4,302 shares at $152.24 ($655K), their entire reported stake.
• Adelborg Auste (Secretary) at STNG sold 6,834 shares at $89.64 ($613K), their entire reported stake.

Dell Technologies Inc. (DELL)

Silver Lake Partners IV, L.P. (Director, 10% Owner) sold 56,794 shares starting Sep 16 at an average $567.89, about $32.3M. That cut their holding 3.9%, leaving 1,385,600 shares. Read the Form 4.

Sl Spv-2, L.P. (Director, 10% Owner) sold 46,994 shares starting Sep 16 at an average $567.88, about $26.7M. That cut their holding 33.7%, leaving 92,330 shares. Read the Form 4.

Silver Lake Partners V DE (AIV), L.P. (Director, 10% Owner) sold 26,985 shares starting Sep 16 at an average $567.88, about $15.3M. That cut their holding 36.1%, leaving 47,746 shares. Read the Form 4.

2 more insider filings for DELL came in the same day.

DELL last closed at $475.51 on Oct 29, -16.3% from the average sale price. Since Aug 1, Dell Technologies Inc. insiders filed 0 open-market purchases ($0) and 51 sales ($783.6M). 414 13F filers hold DELL among their 50 largest positions, including Arnold Van Den Berg, Jim Simons and Derek Pilecki. Members of Congress disclosed 11 trades in DELL over the past year; most recently Alan Armstrong (R-OK) bought $1,001–$15,000 on Mar 27.

Who traded DELL since Aug 1:

• Silver Lake Partners IV, L.P. (Director, 10% Owner): 10 sales of 600,220 shares, about $320.8M
• Sl Spv-2, L.P. (Director, 10% Owner): 9 sales of 490,446 shares, about $262.3M
• Silver Lake Partners V DE (AIV), L.P. (Director, 10% Owner): 9 sales of 281,743 shares, about $150.7M
• Trizzino Peter (President, Global Sales): 1 sale of 37,735 shares, about $21.1M
• Saavedra Jennifer D. (Chief Human Resources Officer): 1 sale of 25,251 shares, about $13.1M
• Silver Lake Technology Investors IV, L.P. (Director, 10% Owner): 9 sales of 10,986 shares, about $5.9M
• Rothberg Richard J (General Counsel & Secretary): 1 sale of 6,000 shares, about $3.3M
• Tunnell Jane (Chief Marketing Officer): 1 sale of 5,436 shares, about $2.8M

See every DELL insider trade and which funds own DELL.

Scorpio Tankers Inc. (STNG)

Bugbee Robert L (President, Director) sold 256,799 shares starting Sep 16 at an average $86.28, about $22.2M. That cut their holding 28.6%, leaving 640,288 shares. Read the Form 4.

Mackey Cameron Keyser (Chief Operating Officer) sold 125,000 shares starting Sep 17 at an average $89.03, about $11.1M. That cut their holding 14.5%, leaving 739,531 shares. Read the Form 4.

Avella Christopher John (Chief Financial Officer) sold 56,500 shares starting Sep 16 at an average $86.57, about $4.9M. That cut their holding 24.0%, leaving 178,834 shares. Read the Form 4.

1 more insider filing for STNG came in the same day.

STNG last closed at $95.07 on Oct 29, +9.1% from the average sale price. Since Aug 1, Scorpio Tankers Inc. insiders filed 0 open-market purchases ($0) and 4 sales ($38.8M). 11 13F filers hold STNG among their 50 largest positions.

Who traded STNG since Aug 1:

• Bugbee Robert L (President, Director): 1 sale of 256,799 shares, about $22.2M
• Mackey Cameron Keyser (Chief Operating Officer): 1 sale of 125,000 shares, about $11.1M
• Avella Christopher John (Chief Financial Officer): 1 sale of 56,500 shares, about $4.9M
• Adelborg Auste (Secretary): 1 sale of 6,834 shares, about $613K

See every STNG insider trade and which funds own STNG.

Adobe Inc. (ADBE)

Narayen Shantanu (Chair and CEO, Director) sold 125,000 shares starting Sep 16 at an average $250.76, about $31.3M. That cut their holding 34.4%, leaving 238,724 shares. Read the Form 4.

ADBE last closed at $248.12 on Oct 29, -1.1% from the average sale price. Since Aug 1, Adobe Inc. insiders filed 0 open-market purchases ($0) and 1 sale ($31.3M). 265 13F filers hold ADBE among their 50 largest positions, including Hillman Capital Management, Samantha McLemore and Jensen Investment Management. Members of Congress disclosed 25 trades in ADBE over the past year; most recently Gilbert Ray Cisneros, Jr. (D-CA) partly sold $1,001–$15,000 on Jul 24.

See every ADBE insider trade and which funds own ADBE.

Best Buy Co Inc (BBY)

Schulze Richard M (Chairman Emeritus) sold 300,000 shares starting Sep 16 at an average $92.51, about $27.8M. They sold their entire reported stake. Read the Form 4.

BBY last closed at $100.39 on Oct 29, +8.5% from the average sale price. Since Aug 1, Best Buy Co Inc insiders filed 0 open-market purchases ($0) and 1 sale ($27.8M). 38 13F filers hold BBY among their 50 largest positions. Members of Congress disclosed 1 trade in BBY over the past year; most recently Alan Armstrong (R-OK) bought $1,001–$15,000 on Mar 27.

See every BBY insider trade and which funds own BBY.

Tempus AI, Inc. (TEM)

Lefkofsky Eric P (CEO and Chairman, Director, 10% Owner) sold 200,000 shares starting Sep 17 at an average $80.57, about $16.1M. That cut their holding 19.8%, leaving 809,631 shares. The trade was made under a Rule 10b5-1 plan set up in advance. Read the Form 4.

Bartolucci Ryan M (Chief Accounting Officer) sold 7,062 shares starting Sep 17 at an average $75.00, about $530K. That cut their holding 10.4%, leaving 60,804 shares. The trade was made under a Rule 10b5-1 plan set up in advance. Read the Form 4.

Polovin Andrew (EVP, Chief Legal Officer) sold 2,951 shares starting Sep 17 at an average $75.00, about $221K. That cut their holding 2.1%, leaving 135,189 shares. The trade was made under a Rule 10b5-1 plan set up in advance. Read the Form 4.

1 more insider filing for TEM came in the same day.

TEM last closed at $77.84 on Oct 29, -3.0% from the average sale price. Since Aug 1, Tempus AI, Inc. insiders filed 0 open-market purchases ($0) and 22 sales ($53.8M). 42 13F filers hold TEM among their 50 largest positions, including Cathie Wood, Samantha McLemore and Duan Yongping.

Who traded TEM since Aug 1:

• Lefkofsky Eric P (CEO and Chairman, Director, 10% Owner): 4 sales of 582,591 shares, about $39.8M
• Fukushima Ryan (CEO, Data): 6 sales of 130,745 shares, about $7.1M
• Rogers James William (Chief Financial Officer): 1 sale of 48,842 shares, about $2.7M
• Polovin Andrew (EVP, Chief Legal Officer): 2 sales of 33,026 shares, about $1.8M
• Schoenherr Thomas Edward (CEO, Diagnostics): 2 sales of 20,008 shares, about $1.1M
• Bartolucci Ryan M (Chief Accounting Officer): 2 sales of 13,237 shares, about $836K
• West Nadja (Director): 2 sales of 6,000 shares, about $369K
• Doudna Jennifer A (Director): 1 sale of 676 shares, about $44K

See every TEM insider trade and which funds own TEM.

Blackstone Inc. (BX)

Baratta Joseph (Director) sold 100,000 shares on Sep 18 at an average $123.80, about $12.4M. That cut their holding 11.5%, leaving 771,599 shares. Read the Form 4.

BX last closed at $120.60 on Oct 29, -2.6% from the average sale price. Since Aug 1, Blackstone Inc. insiders filed 1 open-market purchase ($62K) and 4 sales ($24.4M). 362 13F filers hold BX among their 50 largest positions, including Torray Funds, Thomas Gayner and Kahn Brothers Group. Members of Congress disclosed 6 trades in BX over the past year; most recently Alan Armstrong (R-OK) bought $1,001–$15,000 on Mar 27.

Who traded BX since Aug 1:

• Baratta Joseph (Director): 1 sale of 100,000 shares, about $12.4M
• Finley John G (Chief Legal Officer): 1 sale of 45,000 shares, about $6.6M
• Sawhney Vikrant (Chief Administrative Officer): 1 sale of 30,000 shares, about $4.1M
• Payne David (Chief Accounting Officer): 1 sale of 9,500 shares, about $1.4M
• Porat Ruth (Director): 1 purchase of 455 shares, about $62K

See every BX insider trade and which funds own BX.

UNITED THERAPEUTICS Corp (UTHR)

Rothblatt Martine A (Chairperson & CEO, Director) sold 9,500 shares starting Sep 17 at an average $496.06, about $4.7M. That cut their holding 2.8%, leaving 324,443 shares. The trade was made under a Rule 10b5-1 plan set up in advance. Read the Form 4.

Mahon Paul A (EVP & GENERAL COUNSEL) sold 8,300 shares starting Sep 17 at an average $497.54, about $4.1M. That cut their holding 15.5%, leaving 45,172 shares. The trade was made under a Rule 10b5-1 plan set up in advance. Read the Form 4.

UTHR last closed at $593.54 on Oct 29, +19.5% from the average sale price. Since Aug 1, UNITED THERAPEUTICS Corp insiders filed 0 open-market purchases ($0) and 39 sales ($182.0M). 78 13F filers hold UTHR among their 50 largest positions, including Jim Simons. Members of Congress disclosed 3 trades in UTHR over the past year; most recently Lisa C. McClain (R-MI) bought $1,001–$15,000 on Oct 30.

Who traded UTHR since Aug 1:

• Rothblatt Martine A (Chairperson & CEO, Director): 34 sales of 323,000 shares, about $165.1M
• Mahon Paul A (EVP & GENERAL COUNSEL): 4 sales of 33,200 shares, about $16.8M
• Mesa Nilda (Director): 1 sale of 228 shares, about $115K

See every UTHR insider trade.

Williams Sonoma Inc (WSM)

Alber Laura (PRESIDENT & CEO, Director) sold 35,000 shares starting Sep 16 at an average $221.20, about $7.7M. That cut their holding 3.9%, leaving 853,524 shares. The trade was made under a Rule 10b5-1 plan set up in advance. Read the Form 4.

Howie Jeffrey (EVP CHIEF FINANCIAL OFFICER) sold 3,045 shares starting Sep 16 at an average $220.61, about $672K. That cut their holding 8.2%, leaving 34,138 shares. The trade was made under a Rule 10b5-1 plan set up in advance. Read the Form 4.

WSM last closed at $259.86 on Oct 29, +17.5% from the average sale price. Since Aug 1, Williams Sonoma Inc insiders filed 0 open-market purchases ($0) and 4 sales ($8.8M). 99 13F filers hold WSM among their 50 largest positions. Members of Congress disclosed 2 trades in WSM over the past year; most recently Julia Letlow (R-LA) bought $1,001–$15,000 on Oct 23.

Who traded WSM since Aug 1:

• Alber Laura (PRESIDENT & CEO, Director): 1 sale of 35,000 shares, about $7.7M
• Howie Jeffrey (EVP CHIEF FINANCIAL OFFICER): 1 sale of 3,045 shares, about $672K
• Yearout Karalyn (EVP CHIEF TALENT OFFICER): 2 sales of 1,522 shares, about $379K

See every WSM insider trade.

Every number here comes from the original Form 4 filings. See all of the day's trades in the Sep 18 insider recap, or screen every Form 4 in the insider screener.