Marianne Catherine Brown
Marianne Catherine Brown: Director at Akamai and Director at IBM. What Marianne Catherine Brown holds in 2 AI and semiconductor companies 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)
Marianne Catherine Brown holds 6,240 Akamai shares (0.00% of the company), worth about $670,675.20 at the last price, according to the Form 4 of May 20, 2023.
- Shares held: 6,240 (0.00%), $670,675.20 — Held in their own name.
- Share units: 1,892 (0.00%), $203,352.16 — Akamai promised them as pay: each unit becomes a share when it vests, if its conditions are met. No vote until then.
IBM (IBM)
Marianne Catherine Brown holds 440 IBM shares (0.00% of the company), worth about $97,464.40 at the last price, according to the Form 3 of Dec 12, 2023.
- Shares held: 440 (0.00%), $97,464.40 — Held in their own name.
Declarations
- IBM (IBM) — Form 4 of Sep 30, 2026 0001804183-26-000014
- IBM (IBM) — Form 4 of Jun 30, 2026 0001804183-26-000011
- Akamai (AKAM) — Form 4 of May 13, 2026 0001804183-26-000008
- IBM (IBM) — Form 4 of Mar 31, 2026 0001804183-26-000004
- IBM (IBM) — Form 4 of Dec 31, 2025 0001804183-26-000001
- IBM (IBM) — Form 4 of Sep 30, 2025 0001804183-25-000012
- IBM (IBM) — Form 4 of Jun 30, 2025 0001562180-25-005172
- Akamai (AKAM) — Form 4 of May 14, 2025 0001086222-25-000171
- IBM (IBM) — Form 4 of Mar 31, 2025 0001562180-25-002846
- IBM (IBM) — Form 4 of Dec 31, 2024 0001562180-25-000023
- IBM (IBM) — Form 4 of Sep 30, 2024 0001562180-24-007084
- IBM (IBM) — Form 4 of Jun 28, 2024 0001562180-24-005534
- IBM (IBM) — Form 3 of Dec 12, 2023; 440 shares after 0001562180-23-008491
- Akamai (AKAM) — Form 4 of May 20, 2023: option exercise or conversion of 1,326; 6,240 shares after 0001086222-23-000202
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.