F. Thomson Leighton
F. Thomson Leighton: Chief Executive Officer · Director at Akamai. What F. Thomson Leighton 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)
F. Thomson Leighton holds 206,333 Akamai shares (0.14% of the company), worth about $22.4M at the last price, according to the Form 4 of Mar 6, 2026.
- Shares held: 108,358 (0.08%), $11.8M — Held through companies or funds (See note).
- Shares held: 97,975 (0.07%), $10.6M — Held in their own name.
- Share units: 85,000 (0.06%), $9.2M — Akamai promised them as pay: each unit becomes a share when it vests, if its conditions are met. No vote until then.
- Exchangeable units: 85,000 (0.06%), $9.2M — 85,000 shares to be obtained one for one by exchanging units of the subsidiary that runs the business.
- Exchangeable units: 40,629 (0.03%), $4.4M — 40,629 shares to be obtained one for one by exchanging units of the subsidiary that runs the business.
- Exchangeable units: 20,315 (0.01%), $2.2M — 20,315 shares to be obtained one for one by exchanging units of the subsidiary that runs the business.
- Share units: 17,464 (0.01%), $1.9M — 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 Mar 6, 2026 (Chief Executive Officer): option exercise or conversion of 23,353; shares withheld for tax of 11,292 at $101.00; 206,333 shares after 0001106232-26-000010
- Akamai (AKAM) — Form 4 of Mar 4, 2026 (Chief Executive Officer): option exercise or conversion of 20,314; shares withheld for tax of 9,822 at $102.08; 194,272 shares after 0001106232-26-000008
- Akamai (AKAM) — Form 4 of Mar 3, 2026 (Chief Executive Officer): option exercise or conversion of 28,333; shares withheld for tax of 14,490 at $97.64; 183,780 shares after 0001106232-26-000006
- Akamai (AKAM) — Form 4 of Feb 20, 2026 (Chief Executive Officer): grant or award of 24,094; shares withheld for tax of 11,650 at $94.17; 169,937 shares after 0001106232-26-000004
- Akamai (AKAM) — Form 4 of Feb 19, 2026 (Chief Executive Officer): option exercise or conversion of 36,101; shares withheld for tax of 15,261 at $109.31; 157,493 shares after 0001106232-26-000002
- Akamai (AKAM) — Form 4 of Aug 11, 2025 (Chief Executive Officer): open-market purchase of 2,076 at $71.33; open-market purchase of 47,924 at $72.30; 2.7M shares after 0001086222-25-000228
- Akamai (AKAM) — Form 4 of Mar 7, 2025 (Chief Executive Officer): option exercise or conversion of 11,904; shares withheld for tax of 5,756 at $82.81; 2.6M shares after 0001086222-25-000104
- Akamai (AKAM) — Form 4 of Mar 6, 2025 (Chief Executive Officer): option exercise or conversion of 23,352; shares withheld for tax of 11,291 at $82.82; 2.5M shares after 0001086222-25-000094
- Akamai (AKAM) — Form 4 of Mar 4, 2025 (Chief Executive Officer): gift of 37,670; option exercise or conversion of 20,313; 218,116 shares after 0001086222-25-000072
- Akamai (AKAM) — Form 4 of Feb 27, 2025 (Chief Executive Officer): open-market purchase of 35,470 at $79.56; open-market purchase of 2,200 at $80.01; 2.5M shares after 0001086222-25-000059
- Akamai (AKAM) — Form 4 of Feb 21, 2025 (Chief Executive Officer): grant or award of 14,186; shares withheld for tax of 6,859 at $76.73; 2.4M shares after 0001086222-25-000041
- Akamai (AKAM) — Form 4 of Feb 19, 2025 (Chief Executive Officer): option exercise or conversion of 4,999; shares withheld for tax of 2,418 at $99.32; 2.4M shares after 0001086222-25-000025
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.