Nasdaq 100 Stocks SEC Filings — August 27, 2026

USA NASDAQ-100

By Gunpowder Editorial ·

10 high priority 7 medium priority 17 total filings analysed

Executive Summary

The 17 filings from NASDAQ-100 constituents on August 27, 2026, reveal a pronounced wave of insider selling, particularly among C-suite executives in the semiconductor and cloud/AI infrastructure sectors. CFOs at Applied Materials, Analog Devices, and AMD executed significant sales under Rule 10b5-1 plans, while CoreWeave's CEO and CFO also sold shares, raising questions about management conviction at elevated valuations.

In contrast, insider activity at Apple, Gilead Sciences, and Alphabet was largely tax-related or part of routine compensation, indicating no bearish signal. The filings lacked period-over-period financial comparisons, forward-looking guidance, or capital allocation announcements, limiting trend analysis. The most actionable theme is the concentrated insider selling in high-growth tech, which may signal peak valuations or a sector rotation. Key events to monitor include Lam Research's board retirements in November and Applied Materials' new board appointment, which could influence strategic direction.

Materiality, sentiment, and priority are scored by Gunpowder’s analysis pipeline. How we score filings →

Filing types in this digest: Form 4 · 8-K

Tracking the trend? Catch up on the prior Nasdaq 100 Stocks SEC Filings digest from August 19, 2026.

Investment Signals (9)

  • CoreWeave (BEARISH)

    CEO sold $11.8M and CFO sold $345K in Class A stock, both under 10b5-1 plans, reducing CEO holdings to just 1,960 shares post-transaction. This near-total liquidation by the CEO is a strong bearish signal, especially for a recent IPO

  • AMD (BEARISH)

    CFO Hu Jean X. sold $1.82M in stock at ~$474, part of a 10b5-1 plan. While pre-planned, the magnitude ($1.82M) and multiple transactions (8) suggest a desire to lock in gains near all-time highs

  • CFO Hill Brice sold $3.59M in a single transaction at $479.25, the largest single insider sale in this batch. Combined with the board's new appointment, this may indicate a strategic shift or valuation concerns

  • CFO Puccio Richard C Jr sold $1M under a 10b5-1 plan at $374.56. While pre-planned, the sale reduces his holdings by ~5%, signaling potential caution

  • Director Anthony Welters sold $1.02M after exercising options at a low strike price ($60.67), realizing a ~145% gain. This profit-taking is neutral but the large sale relative to holdings (54% of post-exercise shares) is notable

  • Apple (NEUTRAL)

    SVP and GC Jennifer Newstead sold $447K under a 10b5-1 plan at $310.95. The sale is small relative to her holdings and pre-planned, indicating no bearish signal

  • Alphabet (NEUTRAL)

    Multiple executives (CEO, CFO, CLO, CAO) had shares withheld for taxes after vesting, totaling ~$3.2M. These are routine and not indicative of bearish sentiment, but the volume suggests insider compensation is significant

  • Amazon (NEUTRAL)

    Executive Chair Jeff Bezos gifted 415,580 shares (value ~$83M based on recent price). Gifting is neutral but reduces his voting power and may precede further sales

  • T-Mobile (NEUTRAL)

    VP & CAO had 171 shares withheld for taxes (~$31K). Immaterial and routine

Risk Flags (7)

  • CEO Michael Intrator sold 134,067 shares, reducing his stake to just 1,960 shares (a 99% reduction). This extreme insider selling post-IPO is a major red flag for corporate governance and management confidence

  • Semiconductor Insider Selling Cluster [MEDIUM RISK]

    CFOs at Applied Materials ($3.59M), AMD ($1.82M), and Analog Devices ($1M) all sold significant stakes on the same day. This coordinated selling in the sector suggests a potential peak in semiconductor stocks or a sector rotation

  • CFO Hill Brice sold 7,500 shares for $3.59M, the largest single insider sale in this batch. If this is not part of a pre-planned diversification, it could signal near-term headwinds for the company

  • Director Welters exercised options at $60.67 and sold at $148.82, a 145% gain. While legal, such large option exercises and sales by a director may indicate a lack of confidence in future growth

  • Two long-serving directors (16 and 7 years) are retiring in November, reducing board size from 12 to 10. This could lead to a loss of institutional knowledge and potential strategic shifts

  • Despite strong stock performance, there were zero insider purchases across all Alphabet filings. The absence of buying, combined with routine tax-withholding sales, suggests insiders see limited upside

  • Similar to Alphabet, Apple's insider activity was limited to a single pre-planned sale by the GC. No buying signals a lack of conviction at current levels

Opportunities (7)

  • The appointment of Qualcomm's CFO/COO Akash Palkhiwala to the board and Audit Committee brings deep semiconductor and financial expertise. This could signal a strategic pivot or M&A focus, creating upside for investors

  • If the CEO's selling creates a temporary price dip, long-term investors could accumulate shares. CoreWeave's AI cloud business is high-growth, and the insider selling may be diversification rather than a fundamental issue

  • AMD/CFO Sale as Contrarian Signal (OPPORTUNITY)

    CFO Hu's sale at $474 may mark a near-term top, but if AMD's AI chip demand remains strong, the pullback could be a buying opportunity. Monitor Q3 earnings for guidance

  • Director Welters exercised options at a low strike, indicating the stock is undervalued relative to his cost basis. The subsequent sale locks in gains, but the exercise itself is a vote of confidence in the company's long-term value

  • The fact that executives are vesting and holding shares (despite tax withholdings) suggests they are not selling aggressively. This stability is a positive sign for long-term holders

  • The only insider activity was a minor tax withholding, indicating no bearish signals. T-Mobile's stable insider base is a positive for investors seeking low-volatility exposure

  • The CFO's $1M sale under a 10b5-1 plan may create a buying opportunity if the stock dips. ADI's analog chip business is defensive and benefits from industrial automation trends

Sector Themes (4)

  • Semiconductor Insider Selling Wave (BEARISH)

    3 of 4 semiconductor companies (Applied Materials, AMD, Analog Devices) had CFOs selling shares, totaling $6.4M. This cluster suggests sector insiders are taking profits near cycle highs, potentially signaling a peak in semiconductor demand

  • AI/Cloud Insider Liquidation (BEARISH)

    CoreWeave's CEO sold nearly his entire stake ($11.8M), while other AI-related companies (AMD, Applied Materials) saw insider selling. This may indicate that AI infrastructure stocks are overvalued relative to insider expectations

  • Tech Giant Insider Stability (NEUTRAL)

    Apple, Alphabet, and Amazon insiders engaged only in routine transactions (tax withholdings, gifts, pre-planned sales). This stability suggests that mega-cap tech insiders see current valuations as fair, not extreme

  • Biotech Insider Profit-Taking (NEUTRAL)

    Gilead's director exercised and sold options, realizing a 145% gain. This pattern of option exercises and sales in biotech may indicate insiders are locking in gains ahead of patent cliffs or pipeline uncertainty

Watch List (7)

  • CoreWeave/CEO Selling (HIGH PRIORITY)
    👁

    Monitor for additional insider sales or public statements. If the CEO continues to sell, it could signal fundamental issues. Next earnings call expected in Q4 2026

  • Watch for strategic announcements following Akash Palkhiwala's appointment. His expertise in M&A and capital allocation could lead to acquisitions or divestitures

  • 👁

    The retirement of two directors in November 2026 could lead to strategic shifts. Monitor for new board appointments and any changes in capital allocation or R&D focus

  • AMD/CFO Selling Pattern (MEDIUM PRIORITY)
    👁

    If CFO Hu continues to sell in subsequent filings, it could signal deeper concerns. Watch for Q3 2026 earnings and guidance for AI chip demand

  • 👁

    Monitor for additional option exercises or sales by directors. If multiple insiders sell, it could indicate pipeline concerns or patent cliff risks

  • 👁

    The absence of insider buying is notable. If insiders start purchasing shares, it could be a bullish signal. Watch for any Form 4 filings with open-market purchases

  • Apple/Insider Activity (LOW PRIORITY)
    👁

    Similar to Alphabet, watch for any insider buying. The lack of buying at current levels may indicate that insiders see limited upside

Filing Analyses (17)
T-Mobile US, Inc. 4 neutral materiality 3/10

27-08-2026

VP & Chief Accounting Officer Drobac Daniel James had withheld for taxes 171.425 Common Stock at $181.61 (~$31.1K). Drobac Daniel James holds 35,889.537 shares after the transaction.

  • · VP & Chief Accounting Officer Drobac Daniel James had withheld for taxes 171.425 Common Stock at $181.61 (~$31.1K)
APPLIED MATERIALS INC /DE 8-K neutral materiality 3/10

27-08-2026

Applied Materials appointed Akash Palkhiwala, CFO and COO of Qualcomm, to its board of directors and its Audit Committee, effective August 27, 2026. The appointment brings extensive financial and operational leadership from the semiconductor industry. No financial metrics or performance data were disclosed in this filing.

  • · Akash Palkhiwala has served as Qualcomm's CFO since 2019 and COO since 2024.
  • · He has been appointed to the board's Audit Committee.
  • · He holds an undergraduate degree in mechanical engineering from L.D. College of Engineering in India and an MBA from the University of Maryland.
  • · Previously, he was a private equity analyst at KeyBank.
ANALOG DEVICES INC 4 negative materiality 4/10

27-08-2026

EVP and CFO Puccio Richard C Jr sold 2,683 Comm Stock - $.16-2/3 value at $374.56 (~$1M). Puccio Richard C Jr holds 54,177.376 shares after the transaction. Trades executed under a Rule 10b5-1 plan.

  • · EVP and CFO Puccio Richard C Jr sold 2,683 Comm Stock - $.16-2/3 value at $374.56 (~$1M)
AMAZON COM INC 4 neutral materiality 4/10

27-08-2026

Executive Chair BEZOS JEFFREY P gifted 184,943 Common Stock, par value $.01 per share. BEZOS JEFFREY P holds 879,323,424 shares after the transaction.

  • · Executive Chair BEZOS JEFFREY P gifted 184,943 Common Stock, par value $.01 per share
  • · Executive Chair BEZOS JEFFREY P gifted 230,637 Common Stock, par value $.01 per share
ADVANCED MICRO DEVICES INC 4 negative materiality 6/10

27-08-2026

EVP, CFO and Treasurer Hu Jean X. sold 3,831 Common Stock at $474.43 (~$1.82M). 8 transactions reported in total. Hu Jean X. holds 160,979 shares after the transaction. Trades executed under a Rule 10b5-1 plan.

  • · EVP, CFO and Treasurer Hu Jean X. sold 900 Common Stock at $470.13 (~$423K)
  • · EVP, CFO and Treasurer Hu Jean X. sold 800 Common Stock at $471.14 (~$377K)
  • · EVP, CFO and Treasurer Hu Jean X. sold 2,513 Common Stock at $472.39 (~$1.19M)
  • · EVP, CFO and Treasurer Hu Jean X. sold 2,327 Common Stock at $473.43 (~$1.1M)
  • · EVP, CFO and Treasurer Hu Jean X. sold 3,831 Common Stock at $474.43 (~$1.82M)
  • · EVP, CFO and Treasurer Hu Jean X. sold 1,429 Common Stock at $475.70 (~$680K)
  • · EVP, CFO and Treasurer Hu Jean X. sold 3,100 Common Stock at $476.53 (~$1.48M)
  • · EVP, CFO and Treasurer Hu Jean X. sold 100 Common Stock at $477.84 (~$47.8K)
APPLIED MATERIALS INC /DE 4 negative materiality 5/10

27-08-2026

SVP, CFO Hill Brice sold 7,500 Common Stock at $479.25 (~$3.59M). Hill Brice holds 128,613 shares after the transaction.

  • · SVP, CFO Hill Brice sold 7,500 Common Stock at $479.25 (~$3.59M)
LAM RESEARCH CORP 8-K neutral materiality 3/10

27-08-2026

Lam Research Corp announced the retirement of two long-serving board members, Sohail U. Ahmed and Michael R. Cannon, effective November 2, 2026. The board size will be reduced from 12 to 10 directors upon their departure. The retirements are part of normal succession planning and do not involve any financial metrics or performance changes.

  • · Mr. Ahmed served on the board for approximately 7 years, including 2 years on the audit committee, 2 years on the compensation and human resources committee, and 2 years on the innovation and technology committee.
  • · Mr. Cannon served on the board for approximately 16 years, including 12 years on the audit committee, 4 years on the compensation and human resources committee, and 15 years on the nominating and governance committee (including 7 years as chair).
  • · The retirements are effective November 2, 2026.
Apple Inc. 4 negative materiality 3/10

27-08-2026

SVP, GC and Secretary Newstead Jennifer sold 1,439 Common Stock at $310.95 (~$447K). Newstead Jennifer holds 37,229 shares after the transaction. Trades executed under a Rule 10b5-1 plan.

  • · SVP, GC and Secretary Newstead Jennifer sold 1,439 Common Stock at $310.95 (~$447K)
GILEAD SCIENCES, INC. 4 negative materiality 7/10

27-08-2026

Director WELTERS ANTHONY sold 6,880 Common Stock at $148.82 (~$1.02M). 8 transactions reported in total. WELTERS ANTHONY holds 12,894 shares after the transaction. Trades executed under a Rule 10b5-1 plan.

  • · Director WELTERS ANTHONY exercised/converted 7,718 Common Stock at $60.67 (~$468K)
  • · Director WELTERS ANTHONY sold 3,118 Common Stock at $148.31 (~$462K)
  • · Director WELTERS ANTHONY sold 4,600 Common Stock at $148.82 (~$685K)
  • · Director WELTERS ANTHONY exercised/converted 10,282 Common Stock at $61.35 (~$631K)
  • · Director WELTERS ANTHONY sold 3,402 Common Stock at $148.24 (~$504K)
  • · Director WELTERS ANTHONY sold 6,880 Common Stock at $148.82 (~$1.02M)
  • · Director WELTERS ANTHONY exercised/converted 7,718 Non-qualified Stock Option (Right to Buy)
  • · Director WELTERS ANTHONY exercised/converted 10,282 Non-qualified Stock Option (Right to Buy)
CoreWeave, Inc. 4 negative materiality 9/10

27-08-2026

CEO and President Intrator Michael N sold 134,067 Class A Common Stock at $88.31 (~$11.8M). 6 transactions reported in total. Intrator Michael N holds 1,960 shares after the transaction. Trades executed under a Rule 10b5-1 plan.

  • · CEO and President Intrator Michael N sold 134,067 Class A Common Stock at $88.31 (~$11.8M)
  • · CEO and President Intrator Michael N sold 62,293 Class A Common Stock at $89.17 (~$5.55M)
  • · CEO and President Intrator Michael N sold 3,640 Class A Common Stock at $89.93 (~$327K)
  • · CEO and President Intrator Michael N sold 72,186 Class A Common Stock at $88.31 (~$6.37M)
  • · CEO and President Intrator Michael N sold 33,546 Class A Common Stock at $89.17 (~$2.99M)
  • · CEO and President Intrator Michael N sold 1,960 Class A Common Stock at $89.93 (~$176K)
CoreWeave, Inc. 4 negative materiality 4/10

27-08-2026

Chief Financial Officer Agrawal Nitin sold 3,909 Class A Common Stock at $88.37 (~$345K). Agrawal Nitin holds 132,596 shares after the transaction. Trades executed under a Rule 10b5-1 plan.

  • · Chief Financial Officer Agrawal Nitin sold 3,909 Class A Common Stock at $88.37 (~$345K)
  • · Chief Financial Officer Agrawal Nitin sold 1,500 Class A Common Stock at $89.24 (~$134K)
  • · Chief Financial Officer Agrawal Nitin sold 100 Class A Common Stock at $90.04 (~$9K)
Alphabet Inc. 4 neutral materiality 3/10

27-08-2026

President and CIO Porat Ruth exercised/converted 1,624 Class C Google Stock Units. Porat Ruth holds 916,438 shares after the transaction.

  • · President and CIO Porat Ruth exercised/converted 1,624 Class C Google Stock Units
  • · President and CIO Porat Ruth had withheld for taxes 1,639 Class C Google Stock Units
  • · President and CIO Porat Ruth exercised/converted 1,624 Class C Capital Stock
Alphabet Inc. 4 neutral materiality 4/10

27-08-2026

SVP, Chief Business Officer Schindler Philipp had withheld for taxes 2,015 Class C Google Stock Units at $344.59 (~$694K). Schindler Philipp holds 925,318 shares after the transaction.

  • · SVP, Chief Business Officer Schindler Philipp exercised/converted 1,996 Class C Google Stock Units
  • · SVP, Chief Business Officer Schindler Philipp had withheld for taxes 2,015 Class C Google Stock Units at $344.59 (~$694K)
  • · SVP, Chief Business Officer Schindler Philipp exercised/converted 1,996 Class C Capital Stock
Alphabet Inc. 4 neutral materiality 6/10

27-08-2026

SVP, Chief Financial Officer Ashkenazi Anat had withheld for taxes 1,781 Class C Google Stock Units at $344.59 (~$614K). Ashkenazi Anat holds 140,506 shares after the transaction.

  • · SVP, Chief Financial Officer Ashkenazi Anat exercised/converted 1,764 Class C Google Stock Units
  • · SVP, Chief Financial Officer Ashkenazi Anat had withheld for taxes 1,781 Class C Google Stock Units at $344.59 (~$614K)
  • · SVP, Chief Financial Officer Ashkenazi Anat exercised/converted 1,764 Class C Capital Stock
Alphabet Inc. 4 neutral materiality 5/10

27-08-2026

VP, Chief Accounting Officer Saraci Marsida had withheld for taxes 122 Class C Google Stock Units at $344.59 (~$42K). 17 transactions reported in total. Saraci Marsida holds 27,874 shares after the transaction.

  • · VP, Chief Accounting Officer Saraci Marsida exercised/converted 121 Class C Google Stock Units
  • · VP, Chief Accounting Officer Saraci Marsida had withheld for taxes 122 Class C Google Stock Units at $344.59 (~$42K)
  • · VP, Chief Accounting Officer Saraci Marsida exercised/converted 101 Class C Google Stock Units
  • · VP, Chief Accounting Officer Saraci Marsida had withheld for taxes 101 Class C Google Stock Units at $344.59 (~$34.8K)
  • · VP, Chief Accounting Officer Saraci Marsida exercised/converted 69 Class C Google Stock Units
  • · VP, Chief Accounting Officer Saraci Marsida had withheld for taxes 69 Class C Google Stock Units at $344.59 (~$23.8K)
  • · VP, Chief Accounting Officer Saraci Marsida exercised/converted 106 Class C Google Stock Units
  • · VP, Chief Accounting Officer Saraci Marsida had withheld for taxes 107 Class C Google Stock Units at $344.59 (~$36.9K)
Alphabet Inc. 4 neutral materiality 5/10

27-08-2026

President, Global Affairs, CLO WALKER JOHN KENT had withheld for taxes 1,639 Class C Google Stock Units at $344.59 (~$565K). WALKER JOHN KENT holds 11,392 shares after the transaction.

  • · President, Global Affairs, CLO WALKER JOHN KENT exercised/converted 1,624 Class C Google Stock Units
  • · President, Global Affairs, CLO WALKER JOHN KENT had withheld for taxes 1,639 Class C Google Stock Units at $344.59 (~$565K)
  • · President, Global Affairs, CLO WALKER JOHN KENT exercised/converted 1,624 Class C Capital Stock
Alphabet Inc. 4 neutral materiality 7/10

27-08-2026

Chief Executive Officer Pichai Sundar had withheld for taxes 3,703 Class C Google Stock Units at $344.59 (~$1.28M). Pichai Sundar holds 1,671,395 shares after the transaction.

  • · Chief Executive Officer Pichai Sundar exercised/converted 3,669 Class C Google Stock Units
  • · Chief Executive Officer Pichai Sundar had withheld for taxes 3,703 Class C Google Stock Units at $344.59 (~$1.28M)
  • · Chief Executive Officer Pichai Sundar exercised/converted 3,669 Class C Capital Stock

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