Insider Selling on October 6, 2026: MDLN, ESTC and NBIS Lead $1.1B of Sales

Company insiders filed 106 open-market sales worth $1.1B with the SEC on October 6, 2026, across 70 companies. 61 of them (58%) 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 Oct 6

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.

• Schuurman Steven (Director) at ESTC sold 1,500,000 shares at $90.13 ($135.2M), cutting their holding 25%.
• Kankanwadi Sudhindra (Deputy CFO & CAO) at SNPS sold 12,170 shares at $496.25 ($6.0M), cutting their holding 35%.
• Parekh Sonalee Elizabeth (Chief Financial Officer) at S sold 51,703 shares at $25.33 ($1.3M), cutting their holding 5.5%.
• Esaka Fumihide (Chief Executive Officer, Director) at AMBQ sold 16,560 shares at $69.60 ($1.2M), cutting their holding 3.6%.
• Palin Carrie (Director) at NTAP sold 5,000 shares at $216.43 ($1.1M), cutting their holding 43%.
• Dodds Mark Eugene (Chief Revenue Officer) at ESTC sold 10,000 shares at $92.58 ($926K), cutting their holding 3.5%.
• Hanson Scott McLean (Chief Technology Officer, Director) at AMBQ sold 8,680 shares at $69.60 ($604K), cutting their holding 3.9%.
• Schulten Andre (Chief Financial Officer) at PG sold 3,914 shares at $145.34 ($569K), cutting their holding 5.6%.

Biggest stake cuts

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

• Skates Spenser (CEO and President, Director, 10% Owner) at AMPL sold 70,087 shares at $14.52 ($1.0M), their entire reported stake.
• O'Reilly Timothy M (Portfolio Manager) at IQI sold 6,282 shares at $8.87 ($56K), their entire reported stake.
• Mann Yaaqov (Chief Technology Officer) at KRNT sold 97,066 shares at $17.43 ($1.7M), cutting their holding 93%.
• McQuarrie David P. (Chief Commercial Officer) at HPQ sold 31,572 shares at $32.12 ($1.0M), cutting their holding 80%.
• Tang Stanley (Director) at DASH sold 23,125 shares at $186.19 ($4.3M), cutting their holding 69%.
• Pantelick Steven (CHIEF FINANCIAL OFFICER) at PUBM sold 22,173 shares at $18.66 ($414K), cutting their holding 68%.

Medline Inc. (MDLN)

GIC Private Ltd (10% Owner) sold 20,678,630 shares starting Oct 2 at an average $34.90, about $721.6M. That cut their holding 55.7%, leaving 16,453,806 shares. Read the Form 4.

MDLN last closed at $32.00 on Oct 29, -8.3% from the average sale price. Since Aug 1, Medline Inc. insiders filed 0 open-market purchases ($0) and 4 sales ($879.9M). 46 13F filers hold MDLN among their 50 largest positions, including John Armitage, Stephen Mandel and George Soros.

See every MDLN insider trade and which funds own MDLN.

Elastic N.V. (ESTC)

Schuurman Steven (Director) sold 1,500,000 shares starting Oct 5 at an average $90.13, about $135.2M. That cut their holding 25.0%, leaving 4,504,600 shares. Read the Form 4.

Dodds Mark Eugene (Chief Revenue Officer) sold 10,000 shares starting Oct 2 at an average $92.58, about $926K. That cut their holding 3.5%, leaving 278,538 shares. Read the Form 4.

ESTC last closed at $103.30 on Oct 29, +14.6% from the average sale price. Since Aug 1, Elastic N.V. insiders filed 0 open-market purchases ($0) and 13 sales ($234.6M). 18 13F filers hold ESTC among their 50 largest positions.

Who traded ESTC since Aug 1:

• Schuurman Steven (Director): 1 sale of 1,500,000 shares, about $135.2M
• Banon Shay (Chief Technology Officer, Director): 4 sales of 1,006,577 shares, about $92.3M
• Kulkarni Ashutosh (Chief Executive Officer, Director): 1 sale of 29,227 shares, about $2.6M
• Dodds Mark Eugene (Chief Revenue Officer): 2 sales of 19,673 shares, about $1.8M
• Herzog Carolyn (Chief Legal Officer): 2 sales of 15,485 shares, about $1.4M
• Welihinda Navam (Chief Financial Officer): 1 sale of 8,961 shares, about $787K
• Bone Jane E (GVP & CAO): 2 sales of 5,718 shares, about $526K

See every ESTC insider trade.

Nebius Group N.V. (NBIS)

Nave Ophir (COO, Director) sold 500,000 shares starting Oct 5 at an average $235.53, about $117.8M. That cut their holding 52.4%, leaving 454,685 shares. The trade was made under a Rule 10b5-1 plan set up in advance. Read the Form 4.

NBIS last closed at $171.99 on Oct 29, -27.0% from the average sale price. Since Aug 1, Nebius Group N.V. insiders filed 0 open-market purchases ($0) and 11 sales ($160.0M). 170 13F filers hold NBIS among their 50 largest positions, including Stephen Mandel, Leopold Aschenbrenner and George Soros. Members of Congress disclosed 1 trade in NBIS over the past year; most recently Alan Armstrong (R-OK) bought $1,001–$15,000 on Mar 30.

Who traded NBIS since Aug 1:

• Nave Ophir (COO, Director): 1 sale of 500,000 shares, about $117.8M
• Ryan Charles E (Director): 1 sale of 50,000 shares, about $13.3M
• Volozh Arkadiy (CEO, Director, 10% Owner): 1 sale of 37,778 shares, about $8.8M
• Boroditsky Marc (Chief Revenue Officer): 2 sales of 33,886 shares, about $7.0M
• Korolenko Andrey (Chief Infrastructure Officer): 1 sale of 29,090 shares, about $6.8M
• Shtan Danila (Chief Technology Officer): 1 sale of 14,546 shares, about $3.4M
• Boynton John Wilson IV (Director): 3 sales of 11,710 shares, about $2.8M
• Alonso Sanchez Maria del Dado (CFO): 1 sale of 470 shares, about $92K

See every NBIS insider trade and which funds own NBIS.

SentinelOne, Inc. (S)

Weingarten Tomer (President, CEO, Director) sold 527,368 shares starting Oct 5 at an average $25.26, about $13.3M. That cut their holding 23.5%, leaving 1,717,510 shares. The trade was made under a Rule 10b5-1 plan set up in advance. Read the Form 4.

Parekh Sonalee Elizabeth (Chief Financial Officer) sold 51,703 shares on Oct 6 at an average $25.33, about $1.3M. That cut their holding 5.5%, leaving 890,914 shares. Read the Form 4.

Pinczuk Ana G. (President Product & Technology, Director) sold 16,042 shares on Oct 6 at an average $25.33, about $406K. That cut their holding 2.2%, leaving 721,674 shares. Read the Form 4.

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

S last closed at $25.71 on Oct 29, +1.7% from the average sale price. Since Aug 1, SentinelOne, Inc. insiders filed 0 open-market purchases ($0) and 16 sales ($22.9M). 22 13F filers hold S among their 50 largest positions.

Who traded S since Aug 1:

• Weingarten Tomer (President, CEO, Director): 5 sales of 792,769 shares, about $18.5M
• Parekh Sonalee Elizabeth (Chief Financial Officer): 2 sales of 73,367 shares, about $1.7M
• Tomasello Robin (Chief Accounting Officer): 3 sales of 40,218 shares, about $797K
• Conder Keenan Michael (Chief Legal Officer & Sec'y): 2 sales of 34,686 shares, about $694K
• Padgett Barry L. (President and COO): 2 sales of 25,238 shares, about $588K
• Pinczuk Ana G. (President Product & Technology, Director): 2 sales of 22,272 shares, about $531K

See every S insider trade.

BioNTech SE (BNTX)

Sahin Ugur (Chief Executive Officer, 10% Owner) sold 93,000 shares starting Oct 5 at an average $97.14, about $9.0M. That cut their holding 51.6%, leaving 87,209 shares. The trade was made under a Rule 10b5-1 plan set up in advance. Read the Form 4.

BNTX last closed at $89.13 on Oct 29, -8.2% from the average sale price. Since Aug 1, BioNTech SE insiders filed 0 open-market purchases ($0) and 12 sales ($76.0M). 19 13F filers hold BNTX among their 50 largest positions.

See every BNTX insider trade and which funds own BNTX.

Synopsys Inc (SNPS)

Kankanwadi Sudhindra (Deputy CFO & CAO) sold 12,170 shares starting Oct 5 at an average $496.25, about $6.0M. That cut their holding 34.9%, leaving 22,717 shares. Read the Form 4.

SNPS last closed at $490.19 on Oct 29, -1.2% from the average sale price. Since Aug 1, Synopsys Inc insiders filed 0 open-market purchases ($0) and 4 sales ($44.0M). 185 13F filers hold SNPS among their 50 largest positions, including Jeremy Grantham, Paul Singer and Brad Gerstner. Members of Congress disclosed 6 trades in SNPS over the past year; most recently Tommy Tuberville (R-AL) sold $1,001–$15,000 on May 3.

Who traded SNPS since Aug 1:

• De Geus Aart (EXECUTIVE CHAIR, Director): 2 sales of 74,641 shares, about $32.5M
• Kankanwadi Sudhindra (Deputy CFO & CAO): 1 sale of 12,170 shares, about $6.0M
• Ghazi Sassine (PRESIDENT AND CEO, Director): 1 sale of 14,604 shares, about $5.5M

See every SNPS insider trade and which funds own SNPS.

CrowdStrike Holdings, Inc. (CRWD)

Kurtz George (PRESIDENT AND CEO, Director) sold 20,000 shares starting Oct 2 at an average $270.78, about $5.4M. That cut their holding 0.3%, leaving 7,531,504 shares. The trade was made under a Rule 10b5-1 plan set up in advance. Read the Form 4.

CRWD last closed at $261.15 on Oct 29, -3.6% from the average sale price. Since Aug 1, CrowdStrike Holdings, Inc. insiders filed 0 open-market purchases ($0) and 40 sales ($417.5M). 590 13F filers hold CRWD among their 50 largest positions, including Hamilton Helmer, David Shaw and Jim Simons. Members of Congress disclosed 6 trades in CRWD over the past year; most recently Gilbert Ray Cisneros, Jr. (D-CA) bought $1,001–$15,000 on Jul 17.

Who traded CRWD since Aug 1:

• Podbere Burt W. (CHIEF FINANCIAL OFFICER): 3 sales of 521,504 shares, about $135.0M
• Kurtz George (PRESIDENT AND CEO, Director): 27 sales of 569,065 shares, about $127.8M
• Sentonas Michael (PRESIDENT): 2 sales of 291,807 shares, about $75.8M
• Watzinger Gerhard (Director): 1 sale of 120,000 shares, about $28.6M
• Gandhi Sameer K (Director): 3 sales of 94,000 shares, about $22.9M
• Austin Roxanne S (Director): 1 sale of 50,000 shares, about $11.9M
• Saha Anurag (CHIEF ACCOUNTING OFFICER): 2 sales of 31,792 shares, about $8.1M
• Davis Cary (Director): 1 sale of 29,940 shares, about $7.4M

See every CRWD insider trade and which funds own CRWD.

UNITED THERAPEUTICS Corp (UTHR)

Rothblatt Martine A (Chairperson & CEO, Director) sold 9,500 shares starting Oct 5 at an average $541.64, about $5.1M. 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.

UTHR last closed at $593.54 on Oct 29, +9.6% from the average sale price. Since Aug 1, UNITED THERAPEUTICS Corp insiders filed 0 open-market purchases ($0) and 53 sales ($244.4M). 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): 47 sales of 437,000 shares, about $222.8M
• Mahon Paul A (EVP & GENERAL COUNSEL): 5 sales of 41,500 shares, about $21.5M
• Mesa Nilda (Director): 1 sale of 228 shares, about $115K

See every UTHR insider trade.

Every number here comes from the original Form 4 filings. See all of the day's trades in the Oct 6 insider recap, or screen every Form 4 in the insider screener.