Robert Blumofe
Robert Blumofe: Chief Technology Officer at Akamai. What Robert Blumofe holds in an AI or semiconductor company tracked on Silicon Floor, from their SEC filings, broken down: the shares held and how, then any restricted shares, options or other rights declared.
Akamai (AKAM)
Robert Blumofe holds 31,159 Akamai shares (0.02% of the company), worth about $3.2M at the last price, according to the Form 4 of Jun 18, 2026.
- Shares held: 31,006 (0.02%), $3.2M — Held in their own name.
- Shares held: 153 (0.00%), $15,550.17 — Held in a retirement account (By 401(k) Plan).
- Share units: 31,764 (0.02%), $3.2M — Akamai promised them as pay: each unit becomes a share when it vests, if its conditions are met. No vote until then.
- Exchangeable units: 6,991 (0.00%), $710,809.92 — 6,991 shares to be obtained one for one by exchanging units of the subsidiary that runs the business.
- Exchangeable units: 3,496 (0.00%), $355,455.80 — 3,496 shares to be obtained one for one by exchanging units of the subsidiary that runs the business.
- Share units: 3,262 (0.00%), $331,663.85 — Akamai promised them as pay: each unit becomes a share when it vests, if its conditions are met. No vote until then.
Declarations
- Akamai (AKAM) — Form 4 of Jun 18, 2026 (Chief Technology Officer): open-market sale of 243 at $129.41; 31,159 shares after 0001086222-26-000075
- Akamai (AKAM) — Form 4 of Mar 6, 2026 (Chief Technology Officer): option exercise or conversion of 5,116; shares withheld for tax of 2,474 at $101.00; 31,237 shares after 0001576905-26-000014
- Akamai (AKAM) — Form 4 of Mar 4, 2026 (Chief Technology Officer): option exercise or conversion of 3,495; shares withheld for tax of 1,690 at $102.08; 28,595 shares after 0001576905-26-000012
- Akamai (AKAM) — Form 4 of Mar 3, 2026 (Chief Technology Officer): option exercise or conversion of 5,293; shares withheld for tax of 2,560 at $97.64; 26,790 shares after 0001576905-26-000010
- Akamai (AKAM) — Form 4 of Feb 20, 2026 (Chief Technology Officer): grant or award of 6,617; shares withheld for tax of 2,905 at $94.17; 24,044 shares after 0001576905-26-000008
- Akamai (AKAM) — Form 4 of Feb 19, 2026 (Chief Technology Officer): option exercise or conversion of 7,906; shares withheld for tax of 2,262 at $109.31; 20,332 shares after 0001576905-26-000006
- Akamai (AKAM) — Form 4 of Feb 13, 2026 (Chief Technology Officer): open-market sale of 3,500 at $108.00; 14,677 shares after 0001576905-26-000004
- Akamai (AKAM) — Form 4 of Jan 22, 2026 (Chief Technology Officer): open-market sale of 3,500 at $97.00; 18,165 shares after 0001576905-26-000002
- Akamai (AKAM) — Form 4 of Nov 14, 2025 (Chief Technology Officer): open-market sale of 3,000 at $87.68; 21,474 shares after 0001086222-25-000260
- Akamai (AKAM) — Form 4 of Nov 7, 2025 (Chief Technology Officer): open-market sale of 3,500 at $86.00; 24,474 shares after 0001086222-25-000258
- Akamai (AKAM) — Form 4 of Aug 22, 2025 (Chief Technology Officer): open-market sale of 3,000 at $77.00; 27,974 shares after 0001086222-25-000232
- Akamai (AKAM) — Form 4 of Jun 12, 2025 (Chief Technology Officer): open-market sale of 3,254 at $77.97; 30,974 shares after 0001086222-25-000192
- Akamai (AKAM) — Form 4 of Mar 7, 2025 (Chief Technology Officer): option exercise or conversion of 2,738; shares withheld for tax of 1,324 at $82.81; 34,096 shares after 0001086222-25-000106
- Akamai (AKAM) — Form 4 of Mar 6, 2025 (Chief Technology Officer): option exercise or conversion of 5,115; shares withheld for tax of 2,474 at $82.82; 32,682 shares after 0001086222-25-000086
- Akamai (AKAM) — Form 4 of Mar 4, 2025 (Chief Technology Officer): option exercise or conversion of 3,495; shares withheld for tax of 1,770 at $81.00; 30,041 shares after 0001086222-25-000066
Sources: SEC Schedules 13D and 13G (stakes above 5%, which count everything a person votes or can acquire within 60 days) and Forms 3, 4 and 5 (the shares a director, officer or 10% owner holds, filed within two business days of each trade). Values at the last price.
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