Ruth T. Dowling

Ruth T. Dowling: EVP, Chief Admin Ofr, GC & Sec at American Tower. What Ruth T. Dowling 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.

American Tower (AMT)

Ruth T. Dowling holds 27,711 American Tower shares (0.01% of the company), worth about $5.0M at the last price, according to the Form 4 of Jul 29, 2026.

• Shares held: 27,711 (0.01%), $5.0M — Held in their own name.

Declarations

• American Tower (AMT) — Form 4 of Jul 29, 2026 (EVP, Chief Admin Ofr, GC & Sec): open-market sale of 685 at $169.54; open-market sale of 1,106 at $174.96; 27,711 shares after 0001053507-26-000135
• American Tower (AMT) — Form 4 of Apr 29, 2026 (EVP, Chief Admin Ofr, GC & Sec): open-market sale of 556 at $178.48; open-market sale of 416 at $177.54; 29,461 shares after 0001053507-26-000105
• American Tower (AMT) — Form 4 of Mar 11, 2026 (EVP, Chief Admin Ofr, GC & Sec): grant or award of 6,878; shares withheld for tax of 6,629 at $186.12; 30,433 shares after 0001053507-26-000074
• American Tower (AMT) — Form 4 of Mar 4, 2026 (EVP, Chief Admin Ofr, GC & Sec): open-market sale of 682 at $188.51; 31,047 shares after 0001053507-26-000043
• American Tower (AMT) — Form 4 of Feb 27, 2026 (EVP, Chief Admin Ofr, GC & Sec): open-market sale of 656 at $186.16; 31,729 shares after 0001960785-26-000004
• American Tower (AMT) — Form 4 of Feb 25, 2026 (EVP, Chief Admin Ofr, GC & Sec): grant or award of 11,083; 32,385 shares after 0001960785-26-000002
• American Tower (AMT) — Form 4 of Oct 1, 2025 (EVP, Chief Admin Ofr, GC & Sec): shares withheld for tax of 55 at $193.32; 21,262 shares after 0001053507-25-000144
• American Tower (AMT) — Form 4 of Mar 11, 2025 (EVP, Chief Admin Ofr, GC & Sec): grant or award of 6,008; shares withheld for tax of 1,411 at $213.07; 21,282 shares after 0001053507-25-000068
• American Tower (AMT) — Form 4 of Oct 1, 2024 (EVP, Chief Admin Ofr, GC & Sec): shares withheld for tax of 59 at $232.07; 17,553 shares after 0001053507-24-000124

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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