The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
| Date | Insider | Role | Action | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 1, 2026 | Meyer Robert Joseph | SVP & Advisor to the CFO | Tax withholding(F) | 153 | $187.53 | $29K |
| May 28, 2026 | Reeve Pamela D A | Director | Gift(G) | 810 | — | $0 |
| Apr 29, 2026 | Dowling Ruth T | EVP, Chief Admin Ofr, GC & Sec | Sell(S) | 416 | $177.54 | $74K |
| Apr 28, 2026 | Dowling Ruth T | EVP, Chief Admin Ofr, GC & Sec | Sell(S) | 556 | $178.48 | $99K |
| Mar 11, 2026 | Vondran Steven O | President and CEO, Director | Tax withholding(F) | 2K | $182.85 | $395K |
| Mar 11, 2026 | Noel Eugene M | EVP & Chief Operating Officer | Tax withholding(F) | 719 | $182.85 | $131K |
| Mar 11, 2026 | Dowling Ruth T | EVP, Chief Admin Ofr, GC & Sec | Tax withholding(F) | 863 | $182.85 | $158K |
| Mar 11, 2026 | Meyer Robert Joseph | SVP & Chief Accounting Officer | Tax withholding(F) | 684 | $182.85 | $125K |
| Mar 11, 2026 | Smith Rodney M | EVP, CFO & Treasurer | Tax withholding(F) | 1K | $182.85 | $237K |
| Mar 11, 2026 | Font Juan | SVP, Pres. & CEO, CoreSite | Tax withholding(F) | 928 | $182.85 | $170K |
| Mar 11, 2026 | Rossi Richard C | EVP & President, U.S. Tower | Tax withholding(F) | 684 | $182.85 | $125K |
| Mar 10, 2026 | Frank Kenneth R | Director | Grant(A) | 1K | — | $0 |
| Mar 10, 2026 | Lieblein Grace | Director | Grant(A) | 1K | — | $0 |
| Mar 10, 2026 | Tanner Bruce L | Director | Grant(A) | 1K | — | $0 |
| Mar 10, 2026 | Reilly Eugene F | Director | Grant(A) | 1K | — | $0 |
| Mar 10, 2026 | Ray Neville R | Director | Grant(A) | 1K | — | $0 |
| Mar 10, 2026 | Reeve Pamela D A | Director | Grant(A) | 1K | — | $0 |
| Mar 10, 2026 | Clarke Teresa Hillary | Director | Grant(A) | 1K | — | $0 |
| Mar 10, 2026 | Hormats Robert D | Director | Grant(A) | 1K | — | $0 |
| Mar 10, 2026 | Kalathur Rajesh | Director | Buy(P) | 3K | $185.30 | $495K |
| Mar 10, 2026 | Kalathur Rajesh | Director | Grant(A) | 1K | — | $0 |
| Mar 10, 2026 | Macnab Craig | Director | Grant(A) | 1K | — | $0 |
| Mar 10, 2026 | Chambliss Kelly C | Director | Grant(A) | 1K | — | $0 |
| Mar 10, 2026 | Vondran Steven O | President and CEO, Director | Tax withholding(F) | 15K | $186.12 | $2.8M |
| Mar 10, 2026 | Vondran Steven O | President and CEO, Director | Grant(A) | 21K | — | $0 |
| Mar 10, 2026 | Noel Eugene M | EVP & Chief Operating Officer | Grant(A) | 8K | — | $0 |
| Mar 10, 2026 | Noel Eugene M | EVP & Chief Operating Officer | Tax withholding(F) | 2K | $186.12 | $465K |
| Mar 10, 2026 | Dowling Ruth T | EVP, Chief Admin Ofr, GC & Sec | Tax withholding(F) | 7K | $186.12 | $1.2M |
| Mar 10, 2026 | Dowling Ruth T | EVP, Chief Admin Ofr, GC & Sec | Grant(A) | 7K | — | $0 |
| Mar 10, 2026 | Meyer Robert Joseph | SVP & Chief Accounting Officer | Grant(A) | 4K | — | $0 |
| Mar 10, 2026 | Meyer Robert Joseph | SVP & Chief Accounting Officer | Tax withholding(F) | 1K | $186.12 | $255K |
| Mar 10, 2026 | Smith Rodney M | EVP, CFO & Treasurer | Grant(A) | 11K | — | $0 |
| Mar 10, 2026 | Smith Rodney M | EVP, CFO & Treasurer | Tax withholding(F) | 12K | $186.12 | $2.3M |
| Mar 10, 2026 | Font Juan | SVP, Pres. & CEO, CoreSite | Tax withholding(F) | 2K | $186.12 | $341K |
| Mar 10, 2026 | Font Juan | SVP, Pres. & CEO, CoreSite | Grant(A) | 8K | — | $0 |
| Mar 10, 2026 | Rossi Richard C | EVP & President, U.S. Tower | Tax withholding(F) | 2K | $186.12 | $287K |
| Mar 10, 2026 | Rossi Richard C | EVP & President, U.S. Tower | Grant(A) | 6K | — | $0 |
| Mar 4, 2026 | Dowling Ruth T | EVP, Chief Admin Ofr, GC & Sec | Sell(S) | 682 | $188.51 | $129K |
| Mar 4, 2026 | Vondran Steven O | President and CEO, Director | Sell(S) | 2K | $189.82 | $337K |
| Mar 4, 2026 | Vondran Steven O | President and CEO, Director | Sell(S) | 15K | $187.90 | $2.8M |
| Mar 4, 2026 | Vondran Steven O | President and CEO, Director | Option exercise(M) | 33K | $94.71 | $3.2M |
| Mar 4, 2026 | Vondran Steven O | President and CEO, Director | Sell(S) | 17K | $188.82 | $3.1M |
| Mar 4, 2026 | Vondran Steven O | President and CEO, Director | Option exercise(M) | 33K | — | $0 |
| Mar 2, 2026 | Noel Eugene M | EVP & Chief Operating Officer | Option exercise(M) | 41K | $94.71 | $3.9M |
| Mar 2, 2026 | Noel Eugene M | EVP & Chief Operating Officer | Sell(S) | 5K | $189.36 | $993K |
| Mar 2, 2026 | Noel Eugene M | EVP & Chief Operating Officer | Sell(S) | 7K | $190.29 | $1.4M |
| Mar 2, 2026 | Noel Eugene M | EVP & Chief Operating Officer | Sell(S) | 22K | $191.40 | $4.1M |
| Mar 2, 2026 | Noel Eugene M | EVP & Chief Operating Officer | Sell(S) | 7K | $192.03 | $1.3M |
| Mar 2, 2026 | Noel Eugene M | EVP & Chief Operating Officer | Option exercise(M) | 41K | — | $0 |
| Feb 27, 2026 | Meyer Robert Joseph | SVP & Chief Accounting Officer | Sell(S) | 4K | $186.73 | $832K |
| Feb 27, 2026 | Dowling Ruth T | EVP, Chief Admin Ofr, GC & Sec | Sell(S) | 656 | $186.16 | $122K |
| Feb 25, 2026 | Vondran Steven O | President and CEO, Director | Grant(A) | 25K | — | $0 |
| Feb 25, 2026 | Smith Rodney M | EVP, CFO & Treasurer | Grant(A) | 21K | — | $0 |
| Feb 25, 2026 | Dowling Ruth T | EVP, Chief Admin Ofr, GC & Sec | Grant(A) | 11K | — | $0 |
| Feb 17, 2026 | Smith Rodney M | EVP, CFO & Treasurer | Sell(S) | 2K | $190.35 | $397K |
| Feb 17, 2026 | Smith Rodney M | EVP, CFO & Treasurer | Option exercise(M) | 34K | $94.71 | $3.3M |
| Feb 17, 2026 | Smith Rodney M | EVP, CFO & Treasurer | Sell(S) | 10K | $191.52 | $1.8M |
| Feb 17, 2026 | Smith Rodney M | EVP, CFO & Treasurer | Sell(S) | 23K | $192.49 | $4.4M |
| Feb 17, 2026 | Smith Rodney M | EVP, CFO & Treasurer | Sell(S) | 1 | $193.13 | $193 |
| Feb 17, 2026 | Smith Rodney M | EVP, CFO & Treasurer | Option exercise(M) | 34K | — | $0 |
| Jan 3, 2026 | Font Juan | SVP, Pres. & CEO, CoreSite | Tax withholding(F) | 419 | $174.80 | $73K |
| Oct 31, 2025 | Reilly Eugene F | Director | Buy(P) | 6K | $178.99 | $994K |
| Oct 1, 2025 | Dowling Ruth T | EVP, Chief Admin Ofr, GC & Sec | Tax withholding(F) | 55 | $193.32 | $11K |
| Sep 19, 2025 | Reilly Eugene F | Director | Expiration(E) | 1 | — | $0 |
| Jul 31, 2025 | Font Juan | SVP, Pres. & CEO, CoreSite | Sell(S) | 720 | $208.33 | $150K |
| Jun 1, 2025 | Meyer Robert Joseph JR | SVP & Chief Accounting Officer | Tax withholding(F) | 162 | $214.65 | $35K |
| Mar 17, 2025 | Goel Sanjay | EVP & President, Asia-Pacific | Sell(S) | 4K | $215.92 | $864K |
| Mar 11, 2025 | Dowling Ruth T | EVP, Chief Admin Ofr, GC & Sec | Tax withholding(F) | 905 | $209.78 | $190K |
| Mar 11, 2025 | Font Juan | SVP, Pres. & CEO, CoreSite | Tax withholding(F) | 981 | $209.78 | $206K |
| Mar 11, 2025 | Meyer Robert Joseph JR | SVP & Chief Accounting Officer | Tax withholding(F) | 717 | $209.78 | $150K |
| Mar 11, 2025 | Noel Eugene M | EVP & Chief Operating Officer | Tax withholding(F) | 755 | $209.78 | $158K |
| Mar 11, 2025 | Puech Olivier | EVP & President, International | Tax withholding(F) | 1K | $209.78 | $254K |
| Mar 11, 2025 | Vondran Steven O | President and CEO, Director | Tax withholding(F) | 2K | $209.78 | $475K |
| Mar 11, 2025 | Rossi Richard C | EVP & President, U.S. Tower | Tax withholding(F) | 717 | $209.78 | $150K |
| Mar 11, 2025 | Smith Rodney M | EVP, CFO & Treasurer | Tax withholding(F) | 1K | $209.78 | $285K |
| Mar 10, 2025 | Noel Eugene M | EVP & Chief Operating Officer | Grant(A) | 6K | — | $0 |
| Mar 10, 2025 | Frank Kenneth R | Director | Grant(A) | 1K | — | $0 |
| Mar 10, 2025 | Tanner Bruce L | Director | Grant(A) | 1K | — | $0 |
| Mar 10, 2025 | Lieblein Grace | Director | Grant(A) | 1K | — | $0 |
| Mar 10, 2025 | Hormats Robert D | Director | Grant(A) | 1K | — | $0 |
| Mar 10, 2025 | Chambliss Kelly C | Director | Grant(A) | 1K | — | $0 |
| Mar 10, 2025 | Clarke Teresa Hillary | Director | Grant(A) | 1K | — | $0 |
| Mar 10, 2025 | Ray Neville R | Director | Grant(A) | 1K | — | $0 |
| Mar 10, 2025 | Macnab Craig | Director | Grant(A) | 1K | — | $0 |
| Mar 10, 2025 | Kalathur Rajesh | Director | Grant(A) | 1K | — | $0 |
| Mar 10, 2025 | Reed Joann A | Director | Grant(A) | 1K | — | $0 |
| Mar 10, 2025 | Reeve Pamela D A | Director | Grant(A) | 1K | — | $0 |
| Mar 10, 2025 | Dowling Ruth T | EVP, Chief Admin Ofr, GC & Sec | Grant(A) | 6K | — | $0 |
| Mar 10, 2025 | Dowling Ruth T | EVP, Chief Admin Ofr, GC & Sec | Tax withholding(F) | 1K | $213.07 | $301K |
| Mar 10, 2025 | Font Juan | SVP, Pres. & CEO, CoreSite | Grant(A) | 7K | — | $0 |
| Mar 10, 2025 | Font Juan | SVP, Pres. & CEO, CoreSite | Tax withholding(F) | 874 | $213.07 | $186K |
| Mar 10, 2025 | Meyer Robert Joseph JR | SVP & Chief Accounting Officer | Tax withholding(F) | 1K | $213.07 | $262K |
| Mar 10, 2025 | Meyer Robert Joseph JR | SVP & Chief Accounting Officer | Grant(A) | 5K | — | $0 |
| Mar 10, 2025 | Noel Eugene M | EVP & Chief Operating Officer | Tax withholding(F) | 2K | $213.07 | $457K |
| Mar 10, 2025 | Puech Olivier | EVP & President, International | Grant(A) | 8K | — | $0 |
| Mar 10, 2025 | Puech Olivier | EVP & President, International | Tax withholding(F) | 8K | $213.07 | $1.7M |
| Mar 10, 2025 | Vondran Steven O | President and CEO, Director | Grant(A) | 15K | — | $0 |
| Mar 10, 2025 | Vondran Steven O | President and CEO, Director | Tax withholding(F) | 10K | $213.07 | $2.2M |
| Mar 10, 2025 | Rossi Richard C | EVP & President, U.S. Tower | Grant(A) | 4K | — | $0 |
| Mar 10, 2025 | Rossi Richard C | EVP & President, U.S. Tower | Tax withholding(F) | 1K | $213.07 | $220K |
Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.
Coverage: Form 4 filings indexed 2021-01-04 → 2026-07-20. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).