Insider Selling on October 20, 2026: MU, GRND and UTHR Lead $55.0M of Sales

Company insiders filed 53 open-market sales worth $55.0M with the SEC on October 20, 2026, across 45 companies. 33 of them (62%) 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 20

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.

• Kulkarni Samarth (Chief Executive Officer, Director) at CRSP sold 47,837 shares at $49.78 ($2.4M), cutting their holding 13%.
• Ginsburg Alan H (Director) at BRT sold 50,129 shares at $13.43 ($673K), cutting their holding 67%.
• Robert Young L (Trustee) at NAD sold 32,727 shares at $10.32 ($338K), their entire reported stake.
• Harris Ronan (Chief Commercial Officer) at SNAP sold 42,741 shares at $6.23 ($266K), cutting their holding 0.6%.
• Robert Young L (Trustee) at JGH sold 20,595 shares at $11.33 ($233K), their entire reported stake.
• Sales Pedro Franco (Director) at ELPC sold 50,000 shares at $3.48 ($174K), cutting their holding 67%.
• Fink Alexander (See Remarks, Director) at SWMR sold 12,580 shares at $9.87 ($124K), cutting their holding 0.5%.
• Ni Ping (Corp Controller) at POWL sold 700 shares at $167.14 ($117K), cutting their holding 12%.

Biggest stake cuts

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

• Thayer Jonathan W (Chief Financial Officer) at VG sold 222,222 shares at $12.69 ($2.8M), their entire reported stake.
• Robert Young L (Trustee) at NAD sold 32,727 shares at $10.32 ($338K), their entire reported stake.
• Robert Young L (Trustee) at JGH sold 20,595 shares at $11.33 ($233K), their entire reported stake.
• Hafer Evan (Founder, Director, 10% Owner) at BRCC sold 8,296 shares at $10.58 ($88K), their entire reported stake.
• Ginsburg Alan H (Director) at BRT sold 50,129 shares at $13.43 ($673K), cutting their holding 67%.
• Sales Pedro Franco (Director) at ELPC sold 50,000 shares at $3.48 ($174K), cutting their holding 67%.

Micron Technology Inc (MU)

Deboer Scott J (Pres. & Chief Tech & Prod Offr) sold 28,545 shares starting Oct 16 at an average $900.00, about $25.7M. That cut their holding 16.2%, leaving 147,430 shares. The trade was made under a Rule 10b5-1 plan set up in advance. Read the Form 4.

MU last closed at $934.27 on Oct 29, +3.8% from the average sale price. Since Aug 1, Micron Technology Inc insiders filed 0 open-market purchases ($0) and 6 sales ($84.4M). 2,161 13F filers hold MU among their 50 largest positions, including Leopold Aschenbrenner, David Tepper and Ram Parameswaran. Members of Congress disclosed 19 trades in MU over the past year; most recently Michael A. Rulli (R-OH) bought $1,001–$15,000 on Jun 25.

Who traded MU since Aug 1:

• Mehrotra Sanjay (President and CEO, Director): 1 sale of 40,000 shares, about $38.8M
• Deboer Scott J (Pres. & Chief Tech & Prod Offr): 1 sale of 28,545 shares, about $25.7M
• Sadana Sumit (EVP and Chief Business Officer): 1 sale of 15,000 shares, about $14.0M
• Ray Michael Charles (SVP, Chief Legal Officer): 2 sales of 6,328 shares, about $5.9M
• Bjorlin Alexis (Director): 1 sale of 25 shares, about $28K

See every MU insider trade and which funds own MU.

Grindr Inc. (GRND)

Zage George Raymond III (Director, 10% Owner) sold 500,000 shares starting Oct 16 at an average $14.12, about $7.1M. That cut their holding 7.0%, leaving 6,627,743 shares. The trade was made under a Rule 10b5-1 plan set up in advance. Read the Form 4.

GRND last closed at $12.90 on Oct 29, -8.6% from the average sale price. Since Aug 1, Grindr Inc. insiders filed 0 open-market purchases ($0) and 9 sales ($24.1M). 13 13F filers hold GRND among their 50 largest positions.

Who traded GRND since Aug 1:

• Zage George Raymond III (Director, 10% Owner): 3 sales of 1,500,000 shares, about $21.8M
• Balance Austin J (Chief Product Officer): 1 sale of 89,638 shares, about $1.4M
• Katz Zachary (CLO and Head of Global Affairs): 4 sales of 53,605 shares, about $862K
• Baer Daniel Brooks (Director): 1 sale of 3,500 shares, about $55K

See every GRND insider trade.

UNITED THERAPEUTICS Corp (UTHR)

Rothblatt Martine A (Chairperson & CEO, Director) sold 9,500 shares starting Oct 19 at an average $543.32, about $5.2M. 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, +9.2% from the average sale price. Since Aug 1, UNITED THERAPEUTICS Corp insiders filed 0 open-market purchases ($0) and 64 sales ($300.4M). 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): 57 sales of 532,000 shares, about $274.4M
• Mahon Paul A (EVP & GENERAL COUNSEL): 6 sales of 49,800 shares, about $26.0M
• Mesa Nilda (Director): 1 sale of 228 shares, about $115K

See every UTHR insider trade.

Venture Global, Inc. (VG)

Thayer Jonathan W (Chief Financial Officer) sold 222,222 shares starting Oct 19 at an average $12.69, about $2.8M. They sold their entire reported stake. The trade was made under a Rule 10b5-1 plan set up in advance. Read the Form 4.

VG last closed at $14.77 on Oct 29, +16.4% from the average sale price. Since Aug 1, Venture Global, Inc. insiders filed 0 open-market purchases ($0) and 13 sales ($104.5M). 38 13F filers hold VG among their 50 largest positions. Members of Congress disclosed 1 trade in VG over the past year; most recently Maria Elvira Salazar (R-FL) bought $1,001–$15,000 on Mar 19.

Who traded VG since Aug 1:

• Larson Keith D (General Counsel and Secretary): 4 sales of 4,480,170 shares, about $64.8M
• Blake Sarah (SVP, Chief Accounting Officer): 1 sale of 1,000,000 shares, about $14.0M
• Musser Fory (Senior VP, Development): 2 sales of 741,560 shares, about $10.5M
• Thayer Jonathan W (Chief Financial Officer): 3 sales of 666,666 shares, about $9.1M
• Granat Sari Beth (Director): 1 sale of 200,000 shares, about $2.7M
• Cothran Brian (Chief Operating Officer): 1 sale of 152,660 shares, about $2.5M
• Staton Jimmy D (Director): 1 sale of 66,000 shares, about $881K

See every VG insider trade.

CRISPR Therapeutics AG (CRSP)

Kulkarni Samarth (Chief Executive Officer, Director) sold 47,837 shares starting Oct 19 at an average $49.78, about $2.4M. That cut their holding 13.3%, leaving 311,899 shares. Read the Form 4.

CRSP last closed at $54.26 on Oct 29, +9.0% from the average sale price. Since Aug 1, CRISPR Therapeutics AG insiders filed 0 open-market purchases ($0) and 7 sales ($4.9M). 26 13F filers hold CRSP among their 50 largest positions, including Cathie Wood.

Who traded CRSP since Aug 1:

• Kulkarni Samarth (Chief Executive Officer, Director): 2 sales of 51,935 shares, about $2.6M
• Kasinger James R. (General Counsel and Secretary): 3 sales of 13,430 shares, about $797K
• Behbahani Ali (Director): 1 sale of 13,679 shares, about $781K
• George Simeon (Director): 1 sale of 14,514 shares, about $720K

See every CRSP insider trade.

AvePoint, Inc. (AVPT)

Brown Brian Michael (Chief Legal Officer, Director) sold 76,106 shares starting Oct 16 at an average $15.26, about $1.2M. That cut their holding 22.7%, leaving 259,604 shares. The trade was made under a Rule 10b5-1 plan set up in advance. Read the Form 4.

AVPT last closed at $17.35 on Oct 29, +13.7% from the average sale price. Since Aug 1, AvePoint, Inc. insiders filed 0 open-market purchases ($0) and 6 sales ($2.9M). 10 13F filers hold AVPT among their 50 largest positions.

See every AVPT insider trade.

Guidewire Software, Inc. (GWRE)

Mullen John P (President) sold 5,400 shares on Oct 20 at an average $185.00, about $999K. That cut their holding 2.9%, leaving 178,247 shares. The trade was made under a Rule 10b5-1 plan set up in advance. Read the Form 4.

GWRE last closed at $160.07 on Oct 29, -13.5% from the average sale price. Since Aug 1, Guidewire Software, Inc. insiders filed 0 open-market purchases ($0) and 20 sales ($31.2M). 37 13F filers hold GWRE among their 50 largest positions, including Bryan Lawrence and Spencer Waxman.

Who traded GWRE since Aug 1:

• Rosenbaum Michael George (Chief Executive Officer, Director): 12 sales of 86,690 shares, about $12.8M
• Mullen John P (President): 3 sales of 59,483 shares, about $9.4M
• Cooper Jeffrey Elliott (Chief Financial Officer): 1 sale of 33,175 shares, about $4.8M
• King James Winston (Chief Admin Officer, Gen Couns): 2 sales of 22,382 shares, about $3.5M
• Peterson David Franklin (Chief Accounting Officer): 2 sales of 4,405 shares, about $775K

See every GWRE insider trade and which funds own GWRE.

Global-E Online Ltd. (GLBE)

Schlachet Amir (CEO, Director) sold 24,999 shares starting Oct 16 at an average $39.04, about $976K. That cut their holding 0.7%, leaving 3,641,735 shares. The trade was made under a Rule 10b5-1 plan set up in advance. Read the Form 4.

GLBE last closed at $43.04 on Oct 29, +10.2% from the average sale price. Since Aug 1, Global-E Online Ltd. insiders filed 0 open-market purchases ($0) and 30 sales ($30.0M). 37 13F filers hold GLBE among their 50 largest positions, including Marc Stad and Spencer Waxman.

Who traded GLBE since Aug 1:

• Schlachet Amir (CEO, Director): 13 sales of 449,994 shares, about $18.6M
• Tamari Shahar (COO, Director): 5 sales of 124,995 shares, about $5.0M
• Debbi Nir (President, Director): 8 sales of 87,492 shares, about $3.5M
• Koren Ofer (CFO): 4 sales of 75,000 shares, about $3.0M

See every GLBE insider trade and which funds own GLBE.

Every number here comes from the original Form 4 filings. See all of the day's trades in the Oct 20 insider recap, or screen every Form 4 in the insider screener.