S&P 500 Technology Sector SEC Filings — October 15, 2026

USA S&P 500 Technology

By Gunpowder Editorial ·

18 high priority 3 medium priority 21 total filings analysed

Executive Summary

The 21 filings in this Technology digest are dominated by Form 4 insider transactions tied to Micron Technology (17 filings), with smaller contributions from Microsoft, Apple, and CrowdStrike, plus one Cisco 13F-HR.

The Micron cluster is almost entirely routine equity compensation: director awards of 304 shares or RSUs, and officer grants followed by tax-withholding dispositions priced at $989.04, which points to a single vesting event rather than discretionary selling. No period-over-period financial comparisons (revenue, margins, guidance) are present in the enriched data, so trend analysis is limited to insider and holdings activity. The few open-market sales that do exist (Apple's SVP Newstead under a 10b5-1 plan, CrowdStrike CEO Kurtz under a 10b5-1 plan, and Micron's SVP Ray under a 10b5-1 plan) are pre-scheduled and carry limited signal. The highest materiality item is Micron CEO Mehrotra's approximately $46.6M in aggregate tax withholding, which reflects the scale of his equity vesting rather than a directional view. Overall, the stream provides little actionable forward-looking intelligence, and investors should treat it primarily as a monitoring digest for insider conviction and vesting schedules.

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

Filing types in this digest: 13F · Form 4

Tracking the trend? Catch up on the prior S&P 500 Technology Sector SEC Filings digest from October 14, 2026.

Investment Signals (8)

  • Micron Technology (Executive Team) (NEUTRAL)
    ▲

    Coordinated tax-withholding dispositions across CEO, COO, CFO, CTO and multiple EVPs at $989.04 with no open-market sales, consistent with a scheduled vesting event rather than directional selling

  • Micron Technology (Board) (NEUTRAL)
    ▲

    Multiple directors (Bjorlin, Gomo, Swan, Haynesworth, Wright, Dugle, Simons, Liu) received 304-unit annual awards, indicating routine board compensation with no signal of director conviction either way

  • Micron Technology (CEO Mehrotra) (NEUTRAL)
    ▲

    Received 21,233 shares and withheld approximately 47,143 shares for taxes (~$46.6M), leaving 355,146 shares held; the scale of withholding reflects large vesting and is a materiality marker, not a sale decision

  • ▲

    SVP Newstead Jennifer sold 2,399 shares at $345.00 (~$828K), retaining 37,194 shares, executed under a Rule 10b5-1 plan, so the sale is pre-scheduled and carries limited directional information

  • CEO George Kurtz sold across three price points ($260.70 to $262.48, ~$1.54M total across tranches), retaining 7,461,504 shares, under a Rule 10b5-1 plan; the very large retained stake indicates continued alignment despite steady selling

  • Micron Technology (SVP Ray) (BEARISH)
    ▲

    Sold 40 shares at $947.29 (~$37.9K) under a 10b5-1 plan, a trivial amount, while separate withholding activity (~$5.89M) is routine; the open-market sale price is below the $989.04 withholding price, a minor divergence worth noting

  • ▲

    EVP Coleman Amy had 31.944 shares withheld for taxes at $533.69 (~$17K), retaining 50,925.46 shares; routine and immaterial, offering no directional signal

  • Cisco Systems (13F-HR) (NEUTRAL)
    ▲

    Reported total institutional holdings of approximately $294.3B as of 09/30/2026, with a $92.7M CoreWeave position and a $35.8M SpaceX-related stake; the filing shows no prior-period comparison, so changes in position size cannot be assessed

Risk Flags (6)

  • Eleven officer filings in a single window show withholding of shares at $989.04 totaling several tens of millions of dollars across the team; while routine, the clustering warrants confirmation that no discretionary sales are masked within the withholding-coded entries

  • SVP Newstead's sale of 2,399 shares (~$828K) is a sale rather than a tax withholding, though executed under a 10b5-1 plan, and the enriched data supplies no prior-period comparison to judge whether it departs from the executive's historical pattern

  • CEO Kurtz executed 16 transactions in the reporting window, the most frequent open-market seller in the digest, even though the 7.46M retained shares are large; sustained sales through 10b5-1 plans can still signal trimming if the plan is amended

  • Open-market sale by SVP Ray at $947.29 compares against the $989.04 price used for withholding in the same period, suggesting the stock traded in a range that the enriched data does not fully characterize; price path should be verified before drawing conclusions

  • The 13F-HR provides no prior-quarter comparison, so the direction of the $92.7M CoreWeave and $35.8M SpaceX-related positions cannot be determined, limiting the ability to assess whether Cisco is accumulating or reducing exposure to these holdings

  • Digest-Wide Data Gap/Missing Financials [HIGH RISK]
    ▼

    None of the 21 filings contains period-over-period revenue, margin, guidance, or capital allocation data in the enriched fields, so the digest cannot evaluate fundamental trends for any constituent; this is a coverage risk for the stream rather than a company-specific risk

Opportunities (5)

  • Officer and director ownership remains substantial after vesting (CEO 355,146 shares; CFO 183,308; COO 343,435; CTO 175,975), and the large-share-count retention after tax withholding supports management alignment with shareholders

  • Eight directors received annual awards in the same window, consistent with an active, stable board compensation cycle that is a neutral-to-positive governance marker

  • CEO Kurtz retains 7,461,504 shares despite ongoing 10b5-1 sales, a stake large enough that continued selling does not materially reduce his economic alignment with shareholders

  • The 13F-HR shows direct stakes in CoreWeave (AI cloud infrastructure, $92.7M) and a SpaceX-related position ($35.8M), indicating Cisco's strategic investment reach into AI infrastructure and space technology, which may be a relevant read-through for networking demand if these holdings are tied to commercial partnerships

  • SVP Newstead retains 37,194 shares after a pre-scheduled sale, so the executive remains meaningfully invested in the equity

Sector Themes (4)

  • Equity Compensation Vesting Dominates Semiconductor Insider Activity (NEUTRAL)
    ◆

    Micron accounts for the large majority of filings (17 of 21), with the overwhelming share being tax-withholding and director awards rather than open-market trades, meaning the insider signal in semiconductors is primarily about vesting schedules and not directional conviction

  • Rule 10b5-1 Plans Shape Open-Market Selling (NEUTRAL)
    ◆

    Three of the open-market sales (Apple, CrowdStrike, Micron SVP Ray) were executed under 10b5-1 plans, indicating pre-scheduled selling across large-cap technology, which generally reduces the information content of individual sales

  • Limited Financial Disclosure in Insider-Heavy Digests (NEUTRAL)
    ◆

    Because the stream is dominated by Form 4 filings, the enriched data lacks period comparisons, guidance, and capital allocation fields for most constituents, so sector-level fundamental themes (margins, capex, buybacks) cannot be derived from this batch

  • Large-Cap AI Infrastructure Exposure via Institutional Holdings (NEUTRAL)
    ◆

    Cisco's 13F reflects stakes in AI-linked names (CoreWeave, SpaceX-related), a pattern of strategic capital deployment into adjacent AI and infrastructure themes among large technology holders

Watch List (6)

  • Monitor the next Form 4 cycle to confirm whether the $989.04 withholding pattern recurs on a scheduled basis, and whether any officer transitions from withholding to open-market sales [date not provided in filings]

  • Track whether Kurtz's 10b5-1 sales continue at the current cadence of 16 transactions, or whether the plan is modified or terminated [date not provided in filings]

  • Monitor follow-on 10b5-1 sales from the Government Affairs SVP for pattern continuity [date not provided in filings]

  • Compare the CoreWeave ($92.7M) and SpaceX-related ($35.8M) position sizes against the next quarterly 13F to determine whether Cisco is adding to or reducing these strategic stakes [next 13F due ~mid-February 2027, per standard 45-day filing deadline]

  • Monitor whether the $947.29 open-market sale price represents a trading-range low, to assess relative valuation and the timing of future 10b5-1 executions [date not provided in filings]

  • Digest Coverage Gap/Fundamental Filings
    👁

    Confirm whether 10-Q or 8-K filings for Micron, Apple, Microsoft, and CrowdStrike are scheduled within the stream window, since the current batch lacks the financial comparisons needed for fundamental analysis [date not provided in filings]

Filing Analyses (21)
CISCO SYSTEMS, INC. 13F-HR neutral materiality 4/10

15-10-2026

Cisco Systems, Inc. filed a Form 13F-HR reporting its institutional equity holdings as of September 30, 2026, with a reported total portfolio value of $294,257,902 thousand (approximately $294.3 billion per the filing's reporting convention). The filing lists five positions across ETFs and private/public technology equities, including iShares Core S&P Total Stock Market ETF (720,000 shares, $119.7 million), SpaceX-related Class A common stock (237,375 shares, $35.8 million), CoreWeave Class A common stock (1,063,980 shares, $92.7 million), iShares S&P 500 ETF (60,000 shares, $46.0 million), and Ethos Technologies Class A (2,412 shares, $81 thousand). Because this is a routine regulatory holdings disclosure, no performance comparison to a prior period is provided, and the filing contains no explicit mention of material risks or deteriorating metrics.

  • · Filing is a 13F-HR for the period ending 09/30/2026, submitted by Cisco Systems, Inc. (SEC File No. 028-14494), with Cisco Systems International B.V. (SEC File No. 028-14495) listed as an other included manager.
  • · Discretionary investment authority is reported as sole for the CoreWeave and Space Exploration Technologies positions and as shared-defined (DFND) for the two iShares ETF positions.
  • · The filing reports values in thousands of dollars; the reported value for the iShares Core S&P Total Stock Market ETF is $119,721,600 and the Ethos Technologies position is $80,971 as presented in the table.
  • · Filing's listed value for Space Exploration Technologies Corp. Class A common stock is in the same units as other positions; the reported total equals the sum of listed values under the filing's own reporting convention, which should be verified against the source data before reliance.
MICROSOFT CORP 4 neutral materiality 4/10

15-10-2026

EVP, Chief Human Resources Off Coleman Amy had withheld for taxes 31.944 Common Stock at $533.69 (~$17K). Coleman Amy holds 50,925.4591 shares after the transaction.

  • · EVP, Chief Human Resources Off Coleman Amy had withheld for taxes 31.944 Common Stock at $533.69 (~$17K)
Apple Inc. 4 negative materiality 5/10

15-10-2026

SVP, GC and Government Affairs Newstead Jennifer sold 2,399 Common Stock at $345.00 (~$828K). Newstead Jennifer holds 37,194 shares after the transaction. Trades executed under a Rule 10b5-1 plan.

  • · SVP, GC and Government Affairs Newstead Jennifer sold 2,399 Common Stock at $345.00 (~$828K)
MICRON TECHNOLOGY INC 4 neutral materiality 4/10

15-10-2026

Director Bjorlin Alexis was awarded 304 Common Stock. Bjorlin Alexis holds 396 shares after the transaction.

  • · Director Bjorlin Alexis was awarded 304 Common Stock
MICRON TECHNOLOGY INC 4 neutral materiality 3/10

15-10-2026

Director GOMO STEVEN J was awarded 304 Common Stock. GOMO STEVEN J holds 17,443 shares after the transaction.

  • · Director GOMO STEVEN J was awarded 304 Common Stock
MICRON TECHNOLOGY INC 4 neutral materiality 5/10

15-10-2026

Director SWAN ROBERT HOLMES was awarded 304 Restricted Stock Units.

  • · Director SWAN ROBERT HOLMES was awarded 304 Restricted Stock Units
MICRON TECHNOLOGY INC 4 neutral materiality 5/10

15-10-2026

Director Haynesworth Linnie M was awarded 304 Restricted Stock Units.

  • · Director Haynesworth Linnie M was awarded 304 Restricted Stock Units
MICRON TECHNOLOGY INC 4 neutral materiality 6/10

15-10-2026

EVP & Chief Financial Officer Murphy Mark J. had withheld for taxes 11,825 Common Stock at $989.04 (~$11.7M). 16 transactions reported in total. Murphy Mark J. holds 183,308 shares after the transaction.

  • · EVP & Chief Financial Officer Murphy Mark J. was awarded 7,078 Common Stock
  • · EVP & Chief Financial Officer Murphy Mark J. had withheld for taxes 9,320 Common Stock at $989.04 (~$9.22M)
  • · EVP & Chief Financial Officer Murphy Mark J. had withheld for taxes 6,438 Common Stock at $989.04 (~$6.37M)
  • · EVP & Chief Financial Officer Murphy Mark J. had withheld for taxes 4,212 Common Stock at $989.04 (~$4.17M)
  • · EVP & Chief Financial Officer Murphy Mark J. exercised/converted 22,774 Common Stock
  • · EVP & Chief Financial Officer Murphy Mark J. had withheld for taxes 11,825 Common Stock at $989.04 (~$11.7M)
  • · EVP & Chief Financial Officer Murphy Mark J. exercised/converted 22,774 Common Stock
  • · EVP & Chief Financial Officer Murphy Mark J. had withheld for taxes 10,033 Common Stock at $989.04 (~$9.92M)
MICRON TECHNOLOGY INC 4 neutral materiality 6/10

15-10-2026

President and COO BHATIA MANISH H had withheld for taxes 13,721 Common Stock at $989.04 (~$13.6M). 16 transactions reported in total. BHATIA MANISH H holds 343,435 shares after the transaction.

  • · President and COO BHATIA MANISH H was awarded 10,111 Common Stock
  • · President and COO BHATIA MANISH H had withheld for taxes 10,828 Common Stock at $989.04 (~$10.7M)
  • · President and COO BHATIA MANISH H had withheld for taxes 7,535 Common Stock at $989.04 (~$7.45M)
  • · President and COO BHATIA MANISH H had withheld for taxes 5,137 Common Stock at $989.04 (~$5.08M)
  • · President and COO BHATIA MANISH H exercised/converted 24,113 Common Stock
  • · President and COO BHATIA MANISH H had withheld for taxes 13,721 Common Stock at $989.04 (~$13.6M)
  • · President and COO BHATIA MANISH H exercised/converted 24,113 Common Stock
  • · President and COO BHATIA MANISH H had withheld for taxes 11,828 Common Stock at $989.04 (~$11.7M)
MICRON TECHNOLOGY INC 4 neutral materiality 5/10

15-10-2026

Director Wright MaryAnn was awarded 304 Restricted Stock Units.

  • · Director Wright MaryAnn was awarded 304 Restricted Stock Units
MICRON TECHNOLOGY INC 4 neutral materiality 5/10

15-10-2026

Pres. & Chief Tech & Prod Offr Deboer Scott J had withheld for taxes 9,961 Common Stock at $989.04 (~$9.85M). 16 transactions reported in total. Deboer Scott J holds 175,975 shares after the transaction.

  • · Pres. & Chief Tech & Prod Offr Deboer Scott J was awarded 9,100 Common Stock
  • · Pres. & Chief Tech & Prod Offr Deboer Scott J had withheld for taxes 7,736 Common Stock at $989.04 (~$7.65M)
  • · Pres. & Chief Tech & Prod Offr Deboer Scott J had withheld for taxes 5,742 Common Stock at $989.04 (~$5.68M)
  • · Pres. & Chief Tech & Prod Offr Deboer Scott J had withheld for taxes 3,791 Common Stock at $989.04 (~$3.75M)
  • · Pres. & Chief Tech & Prod Offr Deboer Scott J exercised/converted 19,424 Common Stock
  • · Pres. & Chief Tech & Prod Offr Deboer Scott J had withheld for taxes 9,961 Common Stock at $989.04 (~$9.85M)
  • · Pres. & Chief Tech & Prod Offr Deboer Scott J exercised/converted 19,424 Common Stock
  • · Pres. & Chief Tech & Prod Offr Deboer Scott J had withheld for taxes 8,318 Common Stock at $989.04 (~$8.23M)
MICRON TECHNOLOGY INC 4 neutral materiality 6/10

15-10-2026

Director Dugle Lynn A was awarded 304 Restricted Stock Units.

  • · Director Dugle Lynn A was awarded 304 Restricted Stock Units
MICRON TECHNOLOGY INC 4 neutral materiality 4/10

15-10-2026

EVP, Worldwide Sales CORDANO MICHAEL D had withheld for taxes 4,694 Common Stock at $989.04 (~$4.64M). 5 transactions reported in total. CORDANO MICHAEL D holds 43,683 shares after the transaction.

  • · EVP, Worldwide Sales CORDANO MICHAEL D was awarded 4,298 Common Stock
  • · EVP, Worldwide Sales CORDANO MICHAEL D had withheld for taxes 4,694 Common Stock at $989.04 (~$4.64M)
  • · EVP, Worldwide Sales CORDANO MICHAEL D was awarded 22,494 Performance Restricted Stock Units
  • · EVP, Worldwide Sales CORDANO MICHAEL D was awarded 22,494 Performance Restricted Stock Units
  • · EVP, Worldwide Sales CORDANO MICHAEL D was awarded 25,566 Performance Restricted Stock Units
MICRON TECHNOLOGY INC 4 neutral materiality 7/10

15-10-2026

EVP and Chief People Officer ARNZEN APRIL S had withheld for taxes 6,793 Common Stock at $989.04 (~$6.72M). 17 transactions reported in total. ARNZEN APRIL S holds 97,952 shares after the transaction.

  • · EVP and Chief People Officer ARNZEN APRIL S was awarded 3,944 Common Stock
  • · EVP and Chief People Officer ARNZEN APRIL S had withheld for taxes 5,335 Common Stock at $989.04 (~$5.28M)
  • · EVP and Chief People Officer ARNZEN APRIL S had withheld for taxes 3,689 Common Stock at $989.04 (~$3.65M)
  • · EVP and Chief People Officer ARNZEN APRIL S had withheld for taxes 2,459 Common Stock at $989.04 (~$2.43M)
  • · EVP and Chief People Officer ARNZEN APRIL S exercised/converted 13,397 Common Stock
  • · EVP and Chief People Officer ARNZEN APRIL S had withheld for taxes 6,793 Common Stock at $989.04 (~$6.72M)
  • · EVP and Chief People Officer ARNZEN APRIL S exercised/converted 13,397 Common Stock
  • · EVP and Chief People Officer ARNZEN APRIL S had withheld for taxes 5,737 Common Stock at $989.04 (~$5.67M)
MICRON TECHNOLOGY INC 4 neutral materiality 6/10

15-10-2026

CVP, Chief Accounting Officer ALLEN SCOTT R. had withheld for taxes 2,686 Common Stock at $989.04 (~$2.66M). 9 transactions reported in total. ALLEN SCOTT R. holds 29,787 shares after the transaction.

  • · CVP, Chief Accounting Officer ALLEN SCOTT R. was awarded 1,012 Common Stock
  • · CVP, Chief Accounting Officer ALLEN SCOTT R. had withheld for taxes 2,081 Common Stock at $989.04 (~$2.06M)
  • · CVP, Chief Accounting Officer ALLEN SCOTT R. had withheld for taxes 2,686 Common Stock at $989.04 (~$2.66M)
  • · CVP, Chief Accounting Officer ALLEN SCOTT R. had withheld for taxes 615 Common Stock at $989.04 (~$608K)
  • · CVP, Chief Accounting Officer ALLEN SCOTT R. had withheld for taxes 583 Common Stock at $914.13 (~$533K)
  • · CVP, Chief Accounting Officer ALLEN SCOTT R. had withheld for taxes 218 Common Stock at $914.13 (~$199K)
  • · CVP, Chief Accounting Officer ALLEN SCOTT R. was awarded 8,171 Performance Restricted Stock Units
  • · CVP, Chief Accounting Officer ALLEN SCOTT R. was awarded 8,171 Performance Restricted Stock Units
MICRON TECHNOLOGY INC 4 neutral materiality 3/10

15-10-2026

Director Simons Anna C was awarded 304 Common Stock. Simons Anna C holds 4,137 shares after the transaction.

  • · Director Simons Anna C was awarded 304 Common Stock
CrowdStrike Holdings, Inc. 4 negative materiality 6/10

15-10-2026

PRESIDENT AND CEO Kurtz George sold 3,283 Class A common stock at $262.48 (~$862K). 16 transactions reported in total. Kurtz George holds 7,461,504 shares after the transaction. Trades executed under a Rule 10b5-1 plan.

  • · PRESIDENT AND CEO Kurtz George sold 600 Class A common stock at $260.70 (~$156K)
  • · PRESIDENT AND CEO Kurtz George sold 1,997 Class A common stock at $261.52 (~$522K)
  • · PRESIDENT AND CEO Kurtz George sold 3,283 Class A common stock at $262.48 (~$862K)
  • · PRESIDENT AND CEO Kurtz George sold 1,320 Class A common stock at $263.44 (~$348K)
  • · PRESIDENT AND CEO Kurtz George sold 476 Class A common stock at $264.28 (~$126K)
  • · PRESIDENT AND CEO Kurtz George sold 1,484 Class A common stock at $265.51 (~$394K)
  • · PRESIDENT AND CEO Kurtz George sold 640 Class A common stock at $266.58 (~$171K)
  • · PRESIDENT AND CEO Kurtz George sold 200 Class A common stock at $267.51 (~$53.5K)
MICRON TECHNOLOGY INC 4 neutral materiality 3/10

15-10-2026

Director Liu Teyin M was awarded 304 Common Stock. Liu Teyin M holds 26,367 shares after the transaction.

  • · Director Liu Teyin M was awarded 304 Common Stock
MICRON TECHNOLOGY INC 4 negative materiality 2/10

15-10-2026

SVP, Chief Legal Officer RAY MICHAEL CHARLES sold 40 Common Stock at $947.29 (~$37.9K). RAY MICHAEL CHARLES holds 56,248 shares after the transaction. Trades executed under a Rule 10b5-1 plan.

  • · SVP, Chief Legal Officer RAY MICHAEL CHARLES sold 40 Common Stock at $947.29 (~$37.9K)
MICRON TECHNOLOGY INC 4 negative materiality 6/10

15-10-2026

SVP, Chief Legal Officer RAY MICHAEL CHARLES had withheld for taxes 5,954 Common Stock at $989.04 (~$5.89M). 33 transactions reported in total. RAY MICHAEL CHARLES holds 56,288 shares after the transaction. Trades executed under a Rule 10b5-1 plan.

  • · SVP, Chief Legal Officer RAY MICHAEL CHARLES was awarded 4,298 Common Stock
  • · SVP, Chief Legal Officer RAY MICHAEL CHARLES had withheld for taxes 5,954 Common Stock at $989.04 (~$5.89M)
  • · SVP, Chief Legal Officer RAY MICHAEL CHARLES had withheld for taxes 3,035 Common Stock at $989.04 (~$3M)
  • · SVP, Chief Legal Officer RAY MICHAEL CHARLES sold 488 Common Stock at $914.13 (~$446K)
  • · SVP, Chief Legal Officer RAY MICHAEL CHARLES sold 120 Common Stock at $915.50 (~$110K)
  • · SVP, Chief Legal Officer RAY MICHAEL CHARLES sold 80 Common Stock at $916.38 (~$73.3K)
  • · SVP, Chief Legal Officer RAY MICHAEL CHARLES sold 200 Common Stock at $917.92 (~$184K)
  • · SVP, Chief Legal Officer RAY MICHAEL CHARLES sold 200 Common Stock at $919.36 (~$184K)
MICRON TECHNOLOGY INC 4 neutral materiality 9/10

15-10-2026

President and CEO MEHROTRA SANJAY had withheld for taxes 47,143 Common Stock at $989.04 (~$46.6M). 16 transactions reported in total. MEHROTRA SANJAY holds 355,146 shares after the transaction.

  • · President and CEO MEHROTRA SANJAY was awarded 21,233 Common Stock
  • · President and CEO MEHROTRA SANJAY had withheld for taxes 20,213 Common Stock at $989.04 (~$20M)
  • · President and CEO MEHROTRA SANJAY had withheld for taxes 14,080 Common Stock at $989.04 (~$13.9M)
  • · President and CEO MEHROTRA SANJAY had withheld for taxes 9,807 Common Stock at $989.04 (~$9.7M)
  • · President and CEO MEHROTRA SANJAY exercised/converted 82,721 Common Stock
  • · President and CEO MEHROTRA SANJAY had withheld for taxes 47,143 Common Stock at $989.04 (~$46.6M)
  • · President and CEO MEHROTRA SANJAY exercised/converted 82,721 Common Stock
  • · President and CEO MEHROTRA SANJAY had withheld for taxes 40,575 Common Stock at $989.04 (~$40.1M)

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