Company · CIK 0000315293 · SIC 6411 — Insurance Agents, Brokers & Service · NYSE
Aon plc · AON
Insider activity reported against this company. All insider holders · On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 2, 2026 PForm 4 → | Sep 3, 8:33 pm EDT | Lester B KnightDirector | 20,000 | $327.48 | $6,549,688 | 163,000 | +14.0% | |
| Jul 28, 2026 SForm 4 → | Jul 30, 5:23 pm EDT | Darren ZeidelGeneral Counsel | 1,900 | $377.76 | $717,750 | 11,504 | −14.2% | 10b5-1 |
| Jul 17, 2026 SForm 4 → | Jul 21, 4:13 pm EDT | Darren ZeidelGeneral Counsel | 1,950 | $372.05 | $725,500 | 13,404 | −12.7% | 10b5-1 |
| Jul 7, 2026 SForm 4 → | Jul 9, 5:48 pm EDT | Darren ZeidelGeneral Counsel | 600 | $360.00 | $216,000 | 15,354 | −3.76% | 10b5-1 |
| Jul 1, 2026 FMForm 4 → | Jul 6, 6:02 pm EDT | Edmund ReeseChief Financial Officer | 6,173 | $343.56 | $755,183 | 3,901 | — | |
| Jun 25, 2026 AForm 4 → | Jun 29, 6:44 pm EDT | Lester B KnightDirector | 1,488 | — | — | 5,227 | — | |
| Jun 25, 2026 AFForm 4 → | Jun 29, 6:42 pm EDT | Jose Antonio AlvarezDirector | 1,148 | $315.95 | $117,682 | 1,270 | — | |
| Jun 25, 2026 AFForm 4 → | Jun 29, 6:12 pm EDT | Cheryl A FrancisDirector | 962 | $315.95 | $58,841 | 29,294 | — | |
| Jun 25, 2026 AFForm 4 → | Jun 29, 5:35 pm EDT | James G. StavridisDirector | 962 | $315.95 | $58,841 | 1,377 | — | |
| Jun 25, 2026 AFForm 4 → | Jun 29, 5:33 pm EDT | Richard C NotebaertDirector | 962 | $315.95 | $58,841 | 28,328 | — | |
| Jun 25, 2026 AFForm 4 → | Jun 29, 5:32 pm EDT | Gloria SantonaDirector | 962 | $315.95 | $58,841 | 22,462 | — | |
| Jun 25, 2026 AFForm 4 → | Jun 29, 5:30 pm EDT | Jeffrey C CampbellDirector | 962 | $315.95 | $58,841 | 12,621 | — | |
| Jun 25, 2026 AFForm 4 → | Jun 29, 5:29 pm EDT | Byron SpruellDirector | 962 | $315.95 | $58,841 | 6,377 | — | |
| Jun 25, 2026 AFForm 4 → | Jun 29, 5:28 pm EDT | Jin-Yong CaiDirector | 1,173 | $315.95 | $125,282 | 7,845 | — | |
| Jun 25, 2026 AFForm 4 → | Jun 29, 5:26 pm EDT | Sarah G SmithDirector | 962 | $315.95 | $58,841 | 2,114 | — | |
| Jun 25, 2026 AFForm 4 → | Jun 29, 5:20 pm EDT | Jo Ann JenkinsDirector | 962 | $315.95 | $58,841 | 874 | — | |
| Jun 25, 2026 AFForm 4 → | Jun 29, 5:16 pm EDT | Adriana KaraboutisDirector | 962 | $315.95 | $58,841 | 2,606 | — | |
| Mar 18, 2019 SForm 4 → | Mar 20, 2015, 5:25 pm EDT | Christa DaviesEVP and CFO | 23,155 | $97.94 | $2,267,847 | 212,079 | −9.84% | plan? |
| Feb 20, 2019 SForm 4 → | Feb 26, 4:24 pm EST | Michael J O'ConnorCo-President | 22,815 | $172.74 | $3,940,974 | 123,784 | −15.6% | plan? late |
| Feb 19, 2019 SForm 4 → | Feb 21, 4:47 pm EST | Peter M LiebGeneral Counsel | 15,068 | $172.77 | $2,603,282 | 16,846 | −47.2% | plan? |
| Feb 19, 2019 FMForm 4 → | Feb 21, 4:34 pm EST | Gregory C CaseChief Executive Officer, Director | 5,331 | $172.66 | $274,702 | 791,829 | — | plan? |
| Feb 19, 2019 SForm 4 → | Feb 19, 9:13 pm EST | Michael NellerPrincipal Accounting Officer | 1,250 | $171.66 | $214,575 | 2,626 | −32.2% | plan? |
| Feb 14, 2019 SForm 4/A → | Feb 21, 4:40 pm EST | Christa DaviesChief Financial Officer | 12,482 | $171.56 | $2,141,472 | 219,571 | −5.38% | plan? |
| Feb 14, 2019 SForm 4 → | Feb 20, 8:34 am EST | Christa DaviesChief Financial Officer | 58,152 | $170.90 | $9,938,466 | 210,571 | −21.6% | plan? late amended |
| Feb 14, 2019 AFMForm 4 → | Feb 20, 8:34 am EST | Christa DaviesChief Financial Officer | 85,138 | $169.80 | $4,083,935 | 244,723 | — | plan? late amended |
| Feb 14, 2019 AFMForm 4 → | Feb 19, 9:35 pm EST | John G BrunoChief Operating Officer | 50,942 | $169.81 | $2,828,658 | 52,752 | — | plan? |
| Feb 14, 2019 AFMForm 4 → | Feb 19, 9:27 pm EST | John ZernCEO, Aon Global Health | 27,125 | $169.86 | $1,311,851 | 37,378 | — | plan? |
| Feb 14, 2019 AFMForm 4 → | Feb 19, 9:24 pm EST | Michael J O'ConnorCo-President | 55,947 | $169.77 | $2,812,442 | 146,599 | — | plan? |
| Feb 14, 2019 AFMForm 4 → | Feb 19, 9:22 pm EST | Caroline GraceCEO, Global Retirement & Inves | 27,125 | $169.86 | $1,311,851 | 53,829 | — | plan? |
| Feb 14, 2019 AFMForm 4 → | Feb 19, 9:19 pm EST | Eric AndersenCo-President | 57,842 | $169.77 | $3,127,736 | 88,441 | — | plan? |
| Feb 14, 2019 AFMForm 4 → | Feb 19, 9:16 pm EST | Anthony R GolandChief Innovation Officer | 40,750 | $169.77 | $2,119,374 | 16,668 | — | plan? |
| Feb 14, 2019 AFForm 4 → | Feb 19, 9:13 pm EST | Michael NellerPrincipal Accounting Officer | 5,713 | $169.62 | $222,541 | 3,876 | — | plan? |
| Feb 14, 2019 AFMForm 4 → | Feb 19, 9:09 pm EST | Gregory C CaseChief Executive Officer, Director | 270,584 | $169.68 | $14,208,443 | 789,680 | — | plan? |
| Dec 21, 2018 GForm 5 → | Feb 12, 2019, 7:22 pm EST | Gregory C CaseChief Executive Officer, Director | 9,500 | — | — | 686,574 | — | plan? |
| Nov 20, 2018 FMForm 4 → | Nov 21, 4:27 pm EST | Caroline GraceCEO, Global Retirement & Inves | 761 | $161.67 | $37,831 | 42,089 | — | plan? |
| Nov 7, 2018 SForm 4 → | Nov 9, 4:12 pm EST | Caroline GraceCEO, Global Retirement & Inves | 4,000 | $160.00 | $640,000 | 41,796 | −8.73% | plan? |
| Sep 26, 2018 GForm 5 → | Feb 12, 2019, 7:27 pm EST | Richard C NotebaertDirector | 5,163 | — | — | 39,272 | — | plan? |
| Sep 19, 2018 SForm 4 → | Sep 21, 4:31 pm EDT | Caroline GraceCEO, Global Retirement & Inves | 4,000 | $155.00 | $620,000 | 45,796 | −8.03% | plan? |
| Sep 14, 2018 FMForm 4 → | Sep 17, 7:03 pm EDT | John G BrunoChief Operating Officer | 18,854 | $151.08 | $940,020 | 35,126 | — | plan? |
| Sep 6, 2018 SForm 4 → | Sep 10, 4:39 pm EDT | Caroline GraceCEO, Global Retirement & Inves | 4,000 | $150.00 | $600,000 | 49,796 | −7.44% | plan? |
| Aug 31, 2018 FMForm 4 → | Sep 5, 4:13 pm EDT | Anthony R GolandChief Human Resources Officer | 1,591 | $145.56 | $70,305 | 886 | — | plan? |
| Aug 21, 2018 FMForm 4 → | Aug 23, 4:49 pm EDT | John ZernCEO, Aon Global Health | 1,660 | $144.36 | $73,624 | 25,699 | — | plan? |
| Aug 20, 2018 SForm 4 → | Aug 22, 5:43 pm EDT | Michael NellerPrincipal Accounting Officer | 750 | $143.58 | $107,683 | 787 | −48.8% | plan? |
| Aug 8, 2018 AFGMForm 4 → | Feb 19, 2019, 9:32 pm EST | Peter M LiebGeneral Counsel | 42,065 | $169.82 | $2,169,229 | 31,914 | — | plan? late |
| Aug 6, 2018 PForm 4 → | Aug 8, 5:26 pm EDT | Jeffrey C CampbellDirector | 5,550 | $143.84 | $798,290 | 7,084 | +362% | plan? |
| Jun 22, 2018 AForm 4 → | Jun 25, 7:00 pm EDT | Carolyn Y WooDirector | 1,240 | — | — | 25,370 | — | plan? |
| Jun 22, 2018 AForm 4 → | Jun 25, 6:59 pm EDT | Gloria SantonaDirector | 1,240 | — | — | 34,661 | — | plan? |
| Jun 22, 2018 AForm 4 → | Jun 25, 6:58 pm EDT | Richard C NotebaertDirector | 1,240 | — | — | 35,333 | — | plan? |
| Jun 22, 2018 AForm 4 → | Jun 25, 6:58 pm EDT | Richard B MyersDirector | 1,240 | — | — | 24,961 | — | plan? |
| Jun 22, 2018 AForm 4 → | Jun 25, 6:57 pm EDT | J Michael LoshDirector | 1,240 | — | — | 2,449 | — | plan? |
| Jun 22, 2018 AForm 4 → | Jun 25, 6:56 pm EDT | Cheryl A FrancisDirector | 1,240 | — | — | 23,757 | — | plan? |
| Jun 22, 2018 AFForm 4 → | Jun 25, 6:55 pm EDT | Fulvio ContiDirector | 1,337 | $137.14 | $13,303 | 26,977 | — | plan? |
| Jun 22, 2018 AForm 4 → | Jun 25, 6:54 pm EDT | Jeffrey C CampbellDirector | 1,534 | — | — | 1,534 | — | plan? |
| Jun 22, 2018 AFForm 4 → | Jun 25, 6:54 pm EDT | Jin-Yong CaiDirector | 1,352 | $137.14 | $15,360 | 3,386 | — | plan? |
| Jun 22, 2018 AForm 4 → | Jun 25, 6:53 pm EDT | Lester B KnightDirector | 2,881 | — | — | 5,789 | — | plan? |
| May 24, 2018 SForm 4 → | Feb 19, 2019, 9:19 pm EST | Eric AndersenCo-President | 5,000 | $142.39 | $711,950 | 67,320 | −6.91% | plan? late |
| May 21, 2018 FMForm 4 → | May 23, 4:52 pm EDT | Michael NellerPrincipal Accounting Officer | 586 | $142.08 | $18,897 | 1,537 | — | plan? |
| May 21, 2018 FMForm 4 → | May 23, 4:49 pm EDT | Caroline GraceCEO, Global Retirement & Inves | 1,090 | $142.08 | $47,597 | 53,733 | — | plan? |
| May 21, 2018 FMForm 4 → | May 23, 4:47 pm EDT | John ZernCEO, Aon Global Health | 436 | $142.08 | $19,039 | 25,059 | — | plan? |
| May 16, 2018 SForm 4 → | May 18, 4:03 pm EDT | Michael NellerPrincipal Accounting Officer | 1,000 | $140.93 | $140,930 | 1,217 | −45.1% | plan? |
| Mar 15, 2018 FMForm 4 → | Mar 19, 4:32 pm EDT | Michael NellerPrincipal Accounting Officer | 431 | $144.97 | $14,352 | 2,217 | — | plan? |
| Mar 13, 2018 FMForm 4 → | Mar 14, 8:50 pm EDT | Michael NellerPrincipal Accounting Officer | 200 | $145.96 | $6,714 | 1,984 | — | plan? |
| Mar 9, 2018 SForm 4 → | Mar 13, 4:37 pm EDT | Peter M LiebGeneral Counsel | 14,772 | $145.00 | $2,141,940 | 15,973 | −48.0% | plan? |
| Mar 9, 2018 GForm 4 → | Mar 13, 4:37 pm EDT | Peter M LiebGeneral Counsel | 188 | — | — | 30,745 | — | plan? |
| Mar 9, 2018 SForm 4 → | Mar 13, 4:30 pm EDT | Michael J O'ConnorCEO, Aon Risk Solutions | 9,855 | $145.00 | $1,428,975 | 123,660 | −7.38% | plan? |
| Mar 1, 2018 SForm 4 → | Mar 5, 4:25 pm EST | Michael NellerPrincipal Accounting Officer | 1,500 | $140.12 | $210,180 | 1,876 | −44.4% | plan? |
| Feb 21, 2018 SForm 4 → | Feb 22, 5:40 pm EST | Anthony R GolandChief Human Resources Officer | 2,124 | $141.16 | $299,824 | 261 | −89.1% | plan? |
| Feb 20, 2018 SForm 4 → | Feb 22, 6:06 pm EST | Michael J O'ConnorCEO, Aon Risk Solutions | 1,411 | $140.23 | $197,865 | 133,515 | −1.05% | plan? |
| Feb 20, 2018 SForm 4 → | Feb 22, 6:02 pm EST | Laurel G. MeissnerGlobal Controller | 7,940 | $140.23 | $1,113,426 | 12,314 | −39.2% | plan? |
| Feb 20, 2018 SForm 4 → | Feb 22, 5:47 pm EST | Christa DaviesChief Financial Officer | 3,237 | $140.99 | $456,372 | 231,687 | −1.38% | plan? |
| Feb 20, 2018 FMForm 4 → | Feb 22, 5:44 pm EST | Gregory C CaseChief Executive Officer, Director | 4,968 | $140.72 | $208,266 | 523,378 | — | plan? |
| Feb 20, 2018 SForm 4 → | Feb 22, 5:37 pm EST | Peter M LiebGeneral Counsel | 1,611 | $141.24 | $227,536 | 30,933 | −4.95% | plan? |
| Feb 16, 2018 SForm 4 → | Feb 20, 9:00 pm EST | Christa DaviesChief Financial Officer | 96,570 | $140.92 | $13,608,393 | 231,687 | −29.4% | plan? |
| Feb 16, 2018 FMForm 4 → | Feb 20, 8:40 pm EST | Anthony R GolandChief Human Resources Officer | 1,743 | $140.86 | $72,684 | 2,385 | — | plan? |
| Feb 15, 2018 AFMForm 4 → | Feb 20, 9:27 pm EST | Eric AndersenCEO, Aon Benfield | 55,719 | $140.89 | $2,480,047 | 72,320 | — | plan? |
| Feb 15, 2018 AFMForm 4 → | Feb 20, 9:11 pm EST | Michael J O'ConnorCEO, Aon Risk Solutions | 54,721 | $140.89 | $2,366,918 | 134,926 | — | plan? |
| Feb 15, 2018 AFMForm 4 → | Feb 20, 9:07 pm EST | John ZernCEO, Aon Global Health | 27,161 | $140.89 | $1,072,007 | 24,891 | — | plan? |
| Feb 15, 2018 AFMForm 4 → | Feb 20, 9:00 pm EST | Christa DaviesChief Financial Officer | 229,345 | $140.89 | $9,125,241 | 234,924 | — | plan? |
| Feb 15, 2018 AFMForm 4 → | Feb 20, 8:47 pm EST | Caroline GraceCEO, Global Retirement & Inves | 16,982 | $140.88 | $631,726 | 53,313 | — | plan? |
| Feb 15, 2018 AFMForm 4 → | Feb 20, 8:43 pm EST | Peter M LiebGeneral Counsel | 42,253 | $140.89 | $1,822,377 | 32,544 | — | plan? |
| Feb 15, 2018 AFMForm 4 → | Feb 20, 8:36 pm EST | Laurel G. MeissnerGlobal Controller | 16,684 | $140.89 | $615,950 | 20,254 | — | plan? |
| Feb 15, 2018 AFMForm 4 → | Feb 20, 8:32 pm EST | Gregory C CaseChief Executive Officer, Director | 657,644 | $140.86 | $28,635,852 | 521,370 | — | plan? |
| Feb 15, 2018 AFMForm 4 → | Feb 20, 8:17 pm EST | John G BrunoChief Operating Officer | 49,282 | $140.89 | $2,191,080 | 28,716 | — | plan? |
| Feb 6, 2018 PForm 4 → | Feb 8, 5:00 pm EST | Lester B KnightDirector | 60,000 | $138.42 | $8,305,300 | 85,000 | +240% | plan? |
| Feb 2, 2018 SForm 4 → | Feb 6, 6:51 pm EST | John ZernCEO, Aon Global Health | 14,747 | $147.00 | $2,167,809 | 12,948 | −53.2% | plan? |
| Feb 2, 2018 SForm 4 → | Feb 6, 6:25 pm EST | Michael J O'ConnorChief Executive Officer, ARS | 12,824 | $145.00 | $1,859,480 | 113,805 | −10.1% | plan? |
| Feb 2, 2018 MForm 4 → | Feb 6, 6:25 pm EST | Michael J O'ConnorChief Executive Officer, ARS | 12,824 | $41.80 | $536,107 | 126,629 | — | plan? |
| Jan 31, 2018 SForm 4 → | Feb 2, 4:37 pm EST | Peter M LiebEVP & General Counsel | 4,200 | $141.39 | $593,838 | 16,161 | −20.6% | plan? |
| Nov 30, 2017 SForm 4 → | Dec 4, 5:35 pm EST | John ZernCEO, Global Health & Benefits | 17,680 | $139.79 | $2,471,487 | 27,695 | −39.0% | plan? |
| Nov 30, 2017 SForm 4 → | Dec 4, 5:27 pm EST | Laurel G. MeissnerSVP & Global Controller | 4,000 | $141.20 | $564,800 | 12,314 | −24.5% | plan? |
| Nov 14, 2017 SForm 4 → | Nov 16, 4:17 pm EST | Eric AndersenCEO, Aon Benfield | 10,000 | $143.52 | $1,435,200 | 51,741 | −16.2% | plan? |
| Nov 9, 2017 SForm 4 → | Nov 13, 4:33 pm EST | John G BrunoExecutive Vice President, CIO | 10,000 | $143.24 | $1,432,400 | 10,471 | −48.8% | plan? |
| Sep 19, 2017 SForm 4 → | Sep 21, 5:17 pm EDT | Michael J O'ConnorChief Executive Officer, ARS | 10,000 | $145.00 | $1,450,000 | 113,805 | −8.08% | plan? |
| Sep 19, 2017 MForm 4 → | Sep 21, 5:17 pm EDT | Michael J O'ConnorChief Executive Officer, ARS | 10,000 | $41.81 | $418,050 | 123,805 | — | plan? |
| Sep 12, 2017 FMForm 4 → | Sep 14, 4:14 pm EDT | John G BrunoExecutive Vice President, CIO | 18,955 | $142.89 | $903,493 | 20,471 | — | plan? |
| Sep 6, 2017 SForm 4 → | Sep 8, 4:30 pm EDT | Michael J O'ConnorChief Executive Officer, ARS | 10,000 | $140.28 | $1,402,800 | 113,805 | −8.08% | plan? |
| Sep 6, 2017 MForm 4 → | Sep 8, 4:30 pm EDT | Michael J O'ConnorChief Executive Officer, ARS | 10,000 | $41.81 | $418,050 | 123,805 | — | plan? |
| Sep 1, 2017 FMForm 4 → | Sep 6, 5:18 pm EDT | Anthony R GolandEVP and CHRO | 1,620 | $138.86 | $71,096 | 1,674 | — | plan? |
| Aug 21, 2017 FMForm 4 → | Aug 23, 5:02 pm EDT | John ZernCEO, Global Health & Benefits | 1,676 | $138.17 | $72,677 | 45,375 | — | plan? |
| Jun 23, 2017 AForm 4 → | Jun 27, 6:32 pm EDT | Richard B MyersDirector | 1,209 | — | — | 23,721 | — | plan? |
Reported at this company — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Jul 1, 2026 MForm 4 → | Jul 6, 6:02 pm EDT | Edmund ReeseChief Financial Officer | 3,975 | — | — | 3,975 | — | |
| Feb 19, 2019 MForm 4 → | Feb 21, 4:34 pm EST | Gregory C CaseChief Executive Officer, Director | 3,740 | — | — | 0 | — | |
| Feb 15, 2019 AMForm 4 → | Feb 19, 9:09 pm EST | Gregory C CaseChief Executive Officer, Director | 8,704 | — | — | 3,313 | — | |
| Feb 14, 2019 AMForm 4 → | Feb 20, 8:34 am EST | Christa DaviesChief Financial Officer | 8,058 | — | — | 2,385 | — | late amended |
| Feb 14, 2019 AMForm 4 → | Feb 19, 9:35 pm EST | John G BrunoChief Operating Officer | 4,456 | — | — | 1,408 | — | |
| Feb 14, 2019 AMForm 4 → | Feb 19, 9:32 pm EST | Peter M LiebGeneral Counsel | 4,290 | — | — | 1,284 | — | |
| Feb 14, 2019 AMForm 4 → | Feb 19, 9:27 pm EST | John ZernCEO, Aon Global Health | 3,243 | — | — | 1,044 | — | |
| Feb 14, 2019 AMForm 4 → | Feb 19, 9:24 pm EST | Michael J O'ConnorCo-President | 4,272 | — | — | 1,342 | — | |
| Feb 14, 2019 AMForm 4 → | Feb 19, 9:22 pm EST | Caroline GraceCEO, Global Retirement & Inves | 3,243 | — | — | 1,044 | — | |
| Feb 14, 2019 AMForm 4 → | Feb 19, 9:19 pm EST | Eric AndersenCo-President | 4,516 | — | — | 1,342 | — | |
| Feb 14, 2019 AMForm 4 → | Feb 19, 9:16 pm EST | Anthony R GolandChief Innovation Officer | 3,615 | — | — | 1,267 | — | |
| Feb 14, 2019 AForm 4 → | Feb 19, 9:13 pm EST | Michael NellerPrincipal Accounting Officer | 660 | — | — | 660 | — | |
| Nov 20, 2018 MForm 4 → | Nov 21, 4:27 pm EST | Caroline GraceCEO, Global Retirement & Inves | 527 | — | — | 1,054 | — | |
| Sep 14, 2018 MForm 4 → | Sep 17, 7:03 pm EDT | John G BrunoChief Operating Officer | 12,632 | — | — | 12,632 | — | |
| Aug 31, 2018 MForm 4 → | Sep 5, 4:13 pm EDT | Anthony R GolandChief Human Resources Officer | 1,108 | — | — | 2,214 | — | |
| Aug 21, 2018 MForm 4 → | Aug 23, 4:49 pm EDT | John ZernCEO, Aon Global Health | 1,150 | — | — | 1,150 | — | |
| May 21, 2018 MForm 4 → | May 23, 4:52 pm EDT | Michael NellerPrincipal Accounting Officer | 453 | — | — | 0 | — | |
| May 21, 2018 MForm 4 → | May 23, 4:49 pm EDT | Caroline GraceCEO, Global Retirement & Inves | 755 | — | — | 0 | — | |
| May 21, 2018 MForm 4 → | May 23, 4:47 pm EDT | John ZernCEO, Aon Global Health | 302 | — | — | 0 | — | |
| Mar 15, 2018 AForm 4 → | Apr 2, 4:14 pm EDT | Michael NellerPrincipal Accounting Officer | 489 | — | — | 489 | — | late |
| Mar 15, 2018 MForm 4 → | Mar 19, 4:32 pm EDT | Michael NellerPrincipal Accounting Officer | 332 | — | — | 304 | — | |
| Mar 13, 2018 MForm 4 → | Mar 14, 8:50 pm EDT | Michael NellerPrincipal Accounting Officer | 154 | — | — | 0 | — | |
| Feb 20, 2018 MForm 4 → | Feb 22, 5:44 pm EST | Gregory C CaseChief Executive Officer, Director | 3,488 | — | — | 0 | — | |
| Feb 16, 2018 AMForm 4 → | Feb 20, 8:32 pm EST | Gregory C CaseChief Executive Officer, Director | 11,687 | — | — | 5,956 | — | |
| Feb 15, 2018 AMForm 4 → | Feb 20, 9:27 pm EST | Eric AndersenCEO, Aon Benfield | 4,743 | — | — | 1,592 | — | |
| Feb 15, 2018 AMForm 4 → | Feb 20, 9:11 pm EST | Michael J O'ConnorCEO, Aon Risk Solutions | 4,548 | — | — | 1,393 | — | |
| Feb 15, 2018 AMForm 4 → | Feb 20, 9:07 pm EST | John ZernCEO, Aon Global Health | 3,424 | — | — | 1,075 | — | |
| Feb 15, 2018 AMForm 4 → | Feb 20, 9:00 pm EST | Christa DaviesChief Financial Officer | 8,917 | — | — | 3,184 | — | |
| Feb 15, 2018 AMForm 4 → | Feb 20, 8:47 pm EST | Caroline GraceCEO, Global Retirement & Inves | 3,447 | — | — | 1,075 | — | |
| Feb 15, 2018 AMForm 4 → | Feb 20, 8:43 pm EST | Peter M LiebGeneral Counsel | 4,704 | — | — | 1,692 | — | |
| Feb 15, 2018 AMForm 4 → | Feb 20, 8:40 pm EST | Anthony R GolandChief Human Resources Officer | 3,127 | — | — | 1,592 | — | |
| Feb 15, 2018 AMForm 4 → | Feb 20, 8:36 pm EST | Laurel G. MeissnerGlobal Controller | 2,814 | — | — | 995 | — | |
| Feb 15, 2018 AMForm 4 → | Feb 20, 8:17 pm EST | John G BrunoChief Operating Officer | 4,879 | — | — | 1,692 | — | |
| Feb 2, 2018 MForm 4 → | Feb 6, 6:25 pm EST | Michael J O'ConnorChief Executive Officer, ARS | 12,824 | — | — | 0 | — | |
| Nov 20, 2017 MForm 4 → | Nov 22, 5:59 pm EST | Caroline GraceCEO, Global Retirement & Inves | 527 | — | — | 1,581 | — | |
| Sep 19, 2017 MForm 4 → | Sep 21, 5:17 pm EDT | Michael J O'ConnorChief Executive Officer, ARS | 10,000 | — | — | 12,824 | — | |
| Sep 12, 2017 MForm 4 → | Sep 14, 4:14 pm EDT | John G BrunoExecutive Vice President, CIO | 12,632 | — | — | 25,264 | — | |
| Sep 6, 2017 MForm 4 → | Sep 8, 4:30 pm EDT | Michael J O'ConnorChief Executive Officer, ARS | 10,000 | — | — | 22,824 | — | |
| Sep 1, 2017 MForm 4 → | Sep 6, 5:18 pm EDT | Anthony R GolandEVP and CHRO | 1,108 | — | — | 3,322 | — | |
| Aug 21, 2017 MForm 4 → | Aug 23, 5:02 pm EDT | John ZernCEO, Global Health & Benefits | 1,150 | — | — | 2,300 | — | |
| May 19, 2017 MForm 4 → | May 23, 4:52 pm EDT | Caroline GraceCEO, Global Retirement & Inves | 2,051 | — | — | 755 | — | |
| May 19, 2017 MForm 4 → | May 23, 4:50 pm EDT | John ZernCEO, Global Health & Benefits | 302 | — | — | 302 | — | |
| Mar 14, 2017 MForm 4 → | Mar 15, 4:03 pm EDT | Eric AndersenCEO, Aon Benfield | 1,157 | — | — | 0 | — | |
| Feb 21, 2017 MForm 4 → | Feb 23, 5:31 pm EST | Christa DaviesEVP and CFO | 93,466 | — | — | 0 | — | |
| Feb 17, 2017 AMForm 4 → | Feb 21, 8:33 pm EST | Gregory C CasePresident & CEO, Director | 16,162 | — | — | 7,480 | — | |
| Feb 17, 2017 MForm 4 → | Feb 21, 8:25 pm EST | Kristi A SavacoolCEO - Aon Hewitt | 2,052 | — | — | 2,221 | — | |
| Feb 16, 2017 AMForm 4 → | Feb 21, 8:35 pm EST | John G BrunoExecutive Vice President, CIO | 4,458 | — | — | 2,098 | — | |
| Feb 16, 2017 AMForm 4 → | Feb 21, 8:34 pm EST | Anthony R GolandEVP and CHRO | 2,818 | — | — | 864 | — | |
| Feb 16, 2017 AMForm 4 → | Feb 21, 8:31 pm EST | Christa DaviesEVP and CFO | 15,057 | — | — | 3,948 | — | |
| Feb 16, 2017 AMForm 4 → | Feb 21, 8:30 pm EST | Laurel G. MeissnerSVP & Global Controller | 2,690 | — | — | 1,234 | — | |
| Feb 16, 2017 AMForm 4 → | Feb 21, 8:27 pm EST | Michael J O'ConnorChief Executive Officer, ARS | 3,928 | — | — | 2,098 | — | |
| Feb 16, 2017 AMForm 4 → | Feb 21, 8:26 pm EST | Peter M LiebEVP & General Counsel | 4,469 | — | — | 2,098 | — | |
| Feb 16, 2017 AMForm 4 → | Feb 21, 8:23 pm EST | Eric AndersenCEO, Aon Benfield | 4,322 | — | — | 1,974 | — | |
| Feb 14, 2017 MForm 4 → | Feb 16, 5:59 pm EST | Gregory C CasePresident & CEO, Director | 4,312 | — | — | 0 | — | |
| Feb 13, 2017 MForm 4 → | Feb 15, 6:42 pm EST | Christa DaviesEVP and CFO | 2,214 | — | — | 0 | — | |
| Feb 13, 2017 MForm 4 → | Feb 15, 6:41 pm EST | Laurel G. MeissnerSVP & Global Controller | 692 | — | — | 0 | — | |
| Feb 13, 2017 MForm 4 → | Feb 15, 6:26 pm EST | Kristi A SavacoolCEO - Aon Hewitt | 1,176 | — | — | 0 | — | |
| Feb 13, 2017 MForm 4 → | Feb 15, 6:18 pm EST | Michael J O'ConnorChief Executive Officer, ARS | 1,176 | — | — | 0 | — | |
| Feb 13, 2017 MForm 4 → | Feb 15, 6:03 pm EST | Peter M LiebEVP & General Counsel | 1,107 | — | — | 0 | — | |
| Sep 1, 2016 MForm 4 → | Sep 6, 5:41 pm EDT | Anthony R GolandEVP and CHRO | 1,108 | — | — | 4,430 | — | |
| Mar 21, 2016 MForm 4 → | Mar 23, 5:42 pm EDT | Peter M LiebEVP & General Counsel | 25,000 | — | — | 0 | — | |
| Feb 19, 2016 AMForm 4 → | Feb 22, 7:39 pm EST | Gregory C CasePresident & CEO, Director | 14,708 | — | — | 6,976 | — | |
| Feb 18, 2016 AMForm 4 → | Feb 22, 7:41 pm EST | Laurel G. MeissnerSVP & Global Controller | 2,431 | — | — | 1,164 | — | |
| Feb 18, 2016 AMForm 4 → | Feb 22, 7:40 pm EST | Peter M LiebEVP & General Counsel | 4,030 | — | — | 1,769 | — | |
| Feb 18, 2016 AMForm 4 → | Feb 22, 7:40 pm EST | Kristi A SavacoolCEO - Aon Hewitt | 4,273 | — | — | 1,885 | — | |
| Feb 18, 2016 AMForm 4 → | Feb 22, 7:40 pm EST | Stephen P McGillChairman/CEO - ARS | 9,242 | — | — | 4,421 | — | |
| Feb 18, 2016 AMForm 4 → | Feb 22, 7:40 pm EST | Christa DaviesEVP and CFO | 7,696 | — | — | 3,549 | — | |
| Feb 14, 2016 MForm 4 → | Feb 17, 5:26 pm EST | Gregory C CasePresident & CEO, Director | 10,350 | — | — | 0 | — | |
| Feb 13, 2016 MForm 4 → | Feb 17, 5:28 pm EST | Laurel G. MeissnerSVP & Global Controller | 1,506 | — | — | 0 | — | |
| Feb 13, 2016 MForm 4 → | Feb 17, 5:27 pm EST | Stephen P McGillChairman/CEO - ARS | 6,024 | — | — | 0 | — | |
| Feb 13, 2016 MForm 4 → | Feb 17, 5:27 pm EST | Kristi A SavacoolCEO - Aon Hewitt | 2,855 | — | — | 0 | — | |
| Feb 13, 2016 MForm 4 → | Feb 17, 5:27 pm EST | Peter M LiebEVP & General Counsel | 2,532 | — | — | 0 | — | |
| Feb 13, 2016 MForm 4 → | Feb 17, 5:27 pm EST | Christa DaviesEVP and CFO | 5,003 | — | — | 0 | — | |
| May 15, 2015 MForm 4 → | May 19, 5:32 pm EDT | Stephen P McGillChairman/CEO - ARS | 27,500 | — | — | 0 | — | |
| Mar 18, 2015 MForm 4 → | Mar 20, 5:25 pm EDT | Christa DaviesEVP and CFO | 34,678 | — | — | 0 | — | |
| Mar 12, 2015 MForm 4 → | Mar 13, 5:19 pm EDT | Gregory C CasePresident & CEO, Director | 100,000 | — | — | 0 | — | |
| Mar 9, 2015 MForm 4 → | Mar 11, 5:15 pm EDT | Gregory C CasePresident & CEO, Director | 150,000 | — | — | 100,000 | — | |
| Mar 4, 2015 MForm 4 → | Mar 6, 5:49 pm EST | Gregory C CasePresident & CEO, Director | 150,000 | — | — | 250,000 | — | |
| Feb 27, 2015 MForm 4 → | Mar 3, 5:16 pm EST | Gregory C CasePresident & CEO, Director | 150,000 | — | — | 400,000 | — | |
| Feb 24, 2015 MForm 4 → | Feb 26, 5:24 pm EST | Gregory C CasePresident & CEO, Director | 150,000 | — | — | 550,000 | — | |
| Feb 19, 2015 AForm 4 → | Feb 23, 9:44 pm EST | Peter M LiebEVP & General Counsel | 2,653 | — | — | 2,653 | — | |
| Feb 19, 2015 AForm 4 → | Feb 23, 9:29 pm EST | Laurel G. MeissnerSVP & Global Controller | 1,745 | — | — | 1,745 | — | |
| Feb 19, 2015 AForm 4 → | Feb 23, 9:28 pm EST | Gregory J BesioEVP/Chief HR Officer | 2,653 | — | — | 2,653 | — | |
| Feb 19, 2015 AForm 4 → | Feb 23, 9:28 pm EST | Kristi A SavacoolCEO - Aon Hewitt | 2,827 | — | — | 2,827 | — | |
| Feb 19, 2015 AForm 4 → | Feb 23, 9:27 pm EST | Stephen P McGillChairman/CEO - ARS | 6,631 | — | — | 6,631 | — | |
| Feb 19, 2015 AForm 4 → | Feb 23, 9:27 pm EST | Christa DaviesEVP and CFO | 5,323 | — | — | 5,323 | — | |
| Feb 19, 2015 MForm 4 → | Feb 23, 9:27 pm EST | Gregory C CasePresident & CEO, Director | 160,464 | — | — | 700,000 | — | |
| Feb 13, 2015 MForm 4 → | Feb 18, 5:43 pm EST | Gregory C CasePresident & CEO, Director | 165,249 | — | — | 850,000 | — | |
| Feb 13, 2015 MForm 4 → | Feb 17, 6:03 pm EST | Laurel G. MeissnerSVP & Global Controller | 2,486 | — | — | 0 | — | |
| Feb 13, 2015 MForm 4 → | Feb 17, 6:02 pm EST | Gregory J BesioEVP/Chief HR Officer | 4,126 | — | — | 0 | — | |
| Feb 13, 2015 MForm 4 → | Feb 17, 6:02 pm EST | Peter M LiebEVP & General Counsel | 4,064 | — | — | 0 | — | |
| Feb 13, 2015 MForm 4 → | Feb 17, 6:02 pm EST | Kristi A SavacoolCEO - Aon Hewitt | 5,186 | — | — | 0 | — | |
| Feb 13, 2015 MForm 4 → | Feb 17, 6:01 pm EST | Stephen P McGillChairman/CEO - ARS | 10,195 | — | — | 0 | — | |
| Feb 13, 2015 MForm 4 → | Feb 17, 6:01 pm EST | Christa DaviesEVP and CFO | 8,313 | — | — | 0 | — | |
| Feb 10, 2015 MForm 4 → | Feb 12, 5:20 pm EST | Gregory C CasePresident & CEO, Director | 107,582 | — | — | 0 | — |