SEC Form 4 reporting owner
Howley W Nicholas
Howley W Nicholas has filed 131 Form 4 transactions reported between November 24, 2025 and September 18, 2026, as a reporting owner of TransDigm Group INC and Director of Perimeter Solutions, Inc..
Name as filed: Howley W Nicholas
Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$88.3M
116 lines
Companies
2
with Form 4 filings
Latest transaction
Sep 18, 2026
transaction date
Roles and reported holdings
Transaction history
All 131 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.
| Date | Company | Type | Shares | Price | Value | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| Sep 18, 2026 | TDG | Grant or awardCode A · direct | 126 | $1085.00 | $137K@ $1085.00 | 239 | Form 4 |
| Aug 18, 2026 | TDG | Open-market saleCode S · indirect | 190 | $1241.14 | $236K@ $1241.14 | 21,548 | Form 4 |
| Aug 18, 2026 | TDG | Open-market saleCode S · indirect | 1,313 | $1240.42 | $1.6M@ $1240.42 | 21,738 | Form 4 |
| Aug 18, 2026 | TDG | Open-market saleCode S · indirect | 3,980 | $1239.17 | $4.9M@ $1239.17 | 23,051 | Form 4 |
| Aug 18, 2026 | TDG | Open-market saleCode S · indirect | 520 | $1238.08 | $644K@ $1238.08 | 27,031 | Form 4 |
| Aug 18, 2026 | TDG | Open-market saleCode S · indirect | 250 | $1236.89 | $309K@ $1236.89 | 27,551 | Form 4 |
| Aug 18, 2026 | TDG | Open-market saleCode S · indirect | 140 | $1236.12 | $173K@ $1236.12 | 27,801 | Form 4 |
| Aug 18, 2026 | TDG | Open-market saleCode S · indirect | 270 | $1234.69 | $333K@ $1234.69 | 27,941 | Form 4 |
| Aug 18, 2026 | TDG | Open-market saleCode S · indirect | 450 | $1233.30 | $555K@ $1233.30 | 28,211 | Form 4 |
| Aug 18, 2026 | TDG | Open-market saleCode S · indirect | 1,055 | $1232.01 | $1.3M@ $1232.01 | 28,661 | Form 4 |
| Aug 18, 2026 | TDG | Open-market saleCode S · indirect | 830 | $1231.12 | $1.0M@ $1231.12 | 29,716 | Form 4 |
| Aug 18, 2026 | TDG | Open-market saleCode S · indirect | 570 | $1230.02 | $701K@ $1230.02 | 30,546 | Form 4 |
| Aug 18, 2026 | TDG | Open-market saleCode S · indirect | 290 | $1229.09 | $356K@ $1229.09 | 31,116 | Form 4 |
| Aug 18, 2026 | TDG | Open-market saleCode S · indirect | 70 | $1227.62 | $86K@ $1227.62 | 31,406 | Form 4 |
| Aug 18, 2026 | TDG | Open-market saleCode S · indirect | 204 | $1225.60 | $250K@ $1225.60 | 31,476 | Form 4 |
| Aug 18, 2026 | TDG | Option exerciseCode M · indirect | 10,132 | $66.47 | $673K@ $66.47 | 31,680 | Form 4 |
| Jul 20, 2026 | TDG | Open-market saleCode S · indirect | 440 | $1224.14 | $539K@ $1224.14 | 21,548 | Form 4 |
| Jul 20, 2026 | TDG | Open-market saleCode S · indirect | 465 | $1222.32 | $568K@ $1222.32 | 21,988 | Form 4 |
| Jul 20, 2026 | TDG | Open-market saleCode S · indirect | 130 | $1220.57 | $159K@ $1220.57 | 22,453 | Form 4 |
| Jul 20, 2026 | TDG | Open-market saleCode S · indirect | 1,243 | $1219.48 | $1.5M@ $1219.48 | 22,583 | Form 4 |
| Jul 20, 2026 | TDG | Open-market saleCode S · indirect | 1,463 | $1218.58 | $1.8M@ $1218.58 | 23,826 | Form 4 |
| Jul 20, 2026 | TDG | Open-market saleCode S · indirect | 603 | $1217.01 | $734K@ $1217.01 | 25,289 | Form 4 |
| Jul 20, 2026 | TDG | Open-market saleCode S · indirect | 260 | $1215.62 | $316K@ $1215.62 | 25,892 | Form 4 |
| Jul 20, 2026 | TDG | Open-market saleCode S · indirect | 1,561 | $1214.74 | $1.9M@ $1214.74 | 26,152 | Form 4 |
| Jul 20, 2026 | TDG | Open-market saleCode S · indirect | 1,437 | $1213.88 | $1.7M@ $1213.88 | 27,713 | Form 4 |
| Jul 20, 2026 | TDG | Open-market saleCode S · indirect | 1,720 | $1212.73 | $2.1M@ $1212.73 | 29,150 | Form 4 |
| Jul 20, 2026 | TDG | Open-market saleCode S · indirect | 240 | $1211.46 | $291K@ $1211.46 | 30,870 | Form 4 |
| Jul 20, 2026 | TDG | Open-market saleCode S · indirect | 570 | $1210.32 | $690K@ $1210.32 | 31,110 | Form 4 |
| Jul 20, 2026 | TDG | Option exerciseCode M · indirect | 10,132 | $66.47 | $673K@ $66.47 | 31,680 | Form 4 |
| Jun 18, 2026 | TDG | Open-market saleCode S · indirect | 176 | $1337.05 | $235K@ $1337.05 | 21,548 | Form 4 |
| Jun 18, 2026 | TDG | Open-market saleCode S · indirect | 78 | $1334.72 | $104K@ $1334.72 | 21,724 | Form 4 |
| Jun 18, 2026 | TDG | Open-market saleCode S · indirect | 275 | $1333.62 | $367K@ $1333.62 | 21,802 | Form 4 |
| Jun 18, 2026 | TDG | Open-market saleCode S · indirect | 13 | $1331.73 | $17K@ $1331.73 | 22,077 | Form 4 |
| Jun 18, 2026 | TDG | Open-market saleCode S · indirect | 47 | $1330.50 | $63K@ $1330.50 | 22,090 | Form 4 |
| Jun 18, 2026 | TDG | Open-market saleCode S · indirect | 245 | $1328.46 | $325K@ $1328.46 | 22,137 | Form 4 |
| Jun 18, 2026 | TDG | Open-market saleCode S · indirect | 200 | $1326.80 | $265K@ $1326.80 | 22,382 | Form 4 |
| Jun 18, 2026 | TDG | Open-market saleCode S · indirect | 257 | $1325.63 | $341K@ $1325.63 | 22,582 | Form 4 |
| Jun 18, 2026 | TDG | Open-market saleCode S · indirect | 377 | $1324.30 | $499K@ $1324.30 | 22,839 | Form 4 |
| Jun 18, 2026 | TDG | Open-market saleCode S · indirect | 677 | $1323.27 | $896K@ $1323.27 | 23,216 | Form 4 |
| Jun 18, 2026 | TDG | Open-market saleCode S · indirect | 305 | $1321.91 | $403K@ $1321.91 | 23,893 | Form 4 |
| Jun 18, 2026 | TDG | Open-market saleCode S · indirect | 268 | $1321.13 | $354K@ $1321.13 | 24,198 | Form 4 |
| Jun 18, 2026 | TDG | Open-market saleCode S · indirect | 827 | $1319.90 | $1.1M@ $1319.90 | 24,466 | Form 4 |
| Jun 18, 2026 | TDG | Open-market saleCode S · indirect | 1,925 | $1318.84 | $2.5M@ $1318.84 | 25,293 | Form 4 |
| Jun 18, 2026 | TDG | Open-market saleCode S · indirect | 893 | $1317.75 | $1.2M@ $1317.75 | 27,218 | Form 4 |
| Jun 18, 2026 | TDG | Open-market saleCode S · indirect | 1,376 | $1316.86 | $1.8M@ $1316.86 | 28,111 | Form 4 |
| Jun 18, 2026 | TDG | Open-market saleCode S · indirect | 745 | $1315.71 | $980K@ $1315.71 | 29,487 | Form 4 |
| Jun 18, 2026 | TDG | Open-market saleCode S · indirect | 964 | $1314.60 | $1.3M@ $1314.60 | 30,232 | Form 4 |
| Jun 18, 2026 | TDG | Open-market saleCode S · indirect | 160 | $1310.45 | $210K@ $1310.45 | 31,196 | Form 4 |
| Jun 18, 2026 | TDG | Open-market saleCode S · indirect | 115 | $1308.92 | $151K@ $1308.92 | 31,356 | Form 4 |
| Jun 18, 2026 | TDG | Open-market saleCode S · indirect | 97 | $1308.05 | $127K@ $1308.05 | 31,471 | Form 4 |
| Jun 18, 2026 | TDG | Open-market saleCode S · indirect | 112 | $1305.19 | $146K@ $1305.19 | 31,568 | Form 4 |
| Jun 18, 2026 | TDG | Option exerciseCode M · indirect | 10,132 | $66.47 | $673K@ $66.47 | 31,680 | Form 4 |
| May 18, 2026 | TDG | Open-market saleCode S · indirect | 132 | $1189.02 | $157K@ $1189.02 | 21,548 | Form 4 |
| May 18, 2026 | TDG | Open-market saleCode S · indirect | 3,801 | $1188.13 | $4.5M@ $1188.13 | 21,680 | Form 4 |
| May 18, 2026 | TDG | Open-market saleCode S · indirect | 272 | $1187.11 | $323K@ $1187.11 | 25,481 | Form 4 |
| May 18, 2026 | TDG | Open-market saleCode S · indirect | 448 | $1185.97 | $531K@ $1185.97 | 25,753 | Form 4 |
| May 18, 2026 | TDG | Open-market saleCode S · indirect | 1,075 | $1185.05 | $1.3M@ $1185.05 | 26,201 | Form 4 |
| May 18, 2026 | TDG | Open-market saleCode S · indirect | 87 | $1183.86 | $103K@ $1183.86 | 27,276 | Form 4 |
| May 18, 2026 | TDG | Open-market saleCode S · indirect | 290 | $1182.81 | $343K@ $1182.81 | 27,363 | Form 4 |
| May 18, 2026 | TDG | Open-market saleCode S · indirect | 437 | $1180.97 | $516K@ $1180.97 | 27,653 | Form 4 |
| May 18, 2026 | TDG | Open-market saleCode S · indirect | 250 | $1179.67 | $295K@ $1179.67 | 28,090 | Form 4 |
| May 18, 2026 | TDG | Open-market saleCode S · indirect | 140 | $1178.14 | $165K@ $1178.14 | 28,340 | Form 4 |
| May 18, 2026 | TDG | Open-market saleCode S · indirect | 313 | $1175.96 | $368K@ $1175.96 | 28,520 | Form 4 |
| May 18, 2026 | TDG | Open-market saleCode S · indirect | 685 | $1174.17 | $804K@ $1174.17 | 28,833 | Form 4 |
| May 18, 2026 | TDG | Open-market saleCode S · indirect | 220 | $1172.31 | $258K@ $1172.31 | 29,518 | Form 4 |
| May 18, 2026 | TDG | Open-market saleCode S · indirect | 390 | $1169.24 | $456K@ $1169.24 | 29,798 | Form 4 |
| May 18, 2026 | TDG | Open-market saleCode S · indirect | 463 | $1168.33 | $541K@ $1168.33 | 30,188 | Form 4 |
| May 18, 2026 | TDG | Open-market saleCode S · indirect | 586 | $1167.05 | $684K@ $1167.05 | 30,651 | Form 4 |
| May 18, 2026 | TDG | Open-market saleCode S · indirect | 110 | $1165.51 | $128K@ $1165.51 | 31,237 | Form 4 |
| May 18, 2026 | TDG | Open-market saleCode S · indirect | 23 | $1163.98 | $27K@ $1163.98 | 31,347 | Form 4 |
| May 18, 2026 | TDG | Open-market saleCode S · indirect | 50 | $1162.94 | $58K@ $1162.94 | 31,370 | Form 4 |
| May 18, 2026 | TDG | Open-market saleCode S · indirect | 80 | $1150.17 | $92K@ $1150.17 | 31,500 | Form 4 |
| May 18, 2026 | TDG | Open-market saleCode S · indirect | 60 | $1146.42 | $69K@ $1146.42 | 31,580 | Form 4 |
| May 18, 2026 | TDG | Open-market saleCode S · indirect | 40 | $1145.16 | $46K@ $1145.16 | 31,640 | Form 4 |
| May 18, 2026 | TDG | Option exerciseCode M · indirect | 10,132 | $66.47 | $673K@ $66.47 | 31,680 | Form 4 |
| Apr 23, 2026 | PRMDirector | GiftCode G · direct | 3,480,640 | — | — | 606,200 | Form 4 |
| Apr 20, 2026 | TDG | Open-market saleCode S · indirect | 430 | $1270.46 | $546K@ $1270.46 | 21,608 | Form 4 |
| Apr 20, 2026 | TDG | Open-market saleCode S · indirect | 270 | $1269.62 | $343K@ $1269.62 | 22,038 | Form 4 |
| Apr 20, 2026 | TDG | Open-market saleCode S · indirect | 940 | $1268.46 | $1.2M@ $1268.46 | 22,308 | Form 4 |
| Apr 20, 2026 | TDG | Open-market saleCode S · indirect | 1,673 | $1267.14 | $2.1M@ $1267.14 | 23,248 | Form 4 |
| Apr 20, 2026 | TDG | Open-market saleCode S · indirect | 1,304 | $1266.13 | $1.7M@ $1266.13 | 24,921 | Form 4 |
| Apr 20, 2026 | TDG | Open-market saleCode S · indirect | 694 | $1264.95 | $878K@ $1264.95 | 26,225 | Form 4 |
| Apr 20, 2026 | TDG | Open-market saleCode S · indirect | 589 | $1263.81 | $744K@ $1263.81 | 26,919 | Form 4 |
| Apr 20, 2026 | TDG | Open-market saleCode S · indirect | 3,077 | $1262.66 | $3.9M@ $1262.66 | 27,508 | Form 4 |
| Apr 20, 2026 | TDG | Open-market saleCode S · indirect | 1,035 | $1261.64 | $1.3M@ $1261.64 | 30,585 | Form 4 |
| Apr 20, 2026 | TDG | Open-market saleCode S · indirect | 60 | $1260.34 | $76K@ $1260.34 | 31,620 | Form 4 |
| Apr 20, 2026 | TDG | Option exerciseCode M · indirect | 343 | $66.47 | $23K@ $66.47 | 31,680 | Form 4 |
| Apr 20, 2026 | TDG | Option exerciseCode M · indirect | 9,789 | $50.92 | $498K@ $50.92 | 31,337 | Form 4 |
| Apr 1, 2026 | PRMDirector | GiftCode G · direct | 1,000,000 | — | — | 4,086,840 | Form 4 |
| Mar 20, 2026 | TDG | Grant or awardCode A · direct | 113 | $1214.66 | $137K@ $1214.66 | 113 | Form 4 |
| Mar 18, 2026 | TDG | Open-market saleCode S · indirect | 108 | $1231.34 | $133K@ $1231.34 | 21,548 | Form 4 |
| Mar 18, 2026 | TDG | Open-market saleCode S · indirect | 521 | $1229.51 | $641K@ $1229.51 | 21,656 | Form 4 |
| Mar 18, 2026 | TDG | Open-market saleCode S · indirect | 120 | $1228.44 | $147K@ $1228.44 | 22,177 | Form 4 |
| Mar 18, 2026 | TDG | Open-market saleCode S · indirect | 38 | $1226.44 | $47K@ $1226.44 | 22,297 | Form 4 |
| Mar 18, 2026 | TDG | Open-market saleCode S · indirect | 70 | $1225.10 | $86K@ $1225.10 | 22,335 | Form 4 |
| Mar 18, 2026 | TDG | Open-market saleCode S · indirect | 10 | $1223.80 | $12K@ $1223.80 | 22,405 | Form 4 |
| Mar 18, 2026 | TDG | Open-market saleCode S · indirect | 29 | $1222.38 | $35K@ $1222.38 | 22,415 | Form 4 |
| Mar 18, 2026 | TDG | Open-market saleCode S · indirect | 40 | $1221.44 | $49K@ $1221.44 | 22,444 | Form 4 |
| Mar 18, 2026 | TDG | Open-market saleCode S · indirect | 90 | $1220.61 | $110K@ $1220.61 | 22,484 | Form 4 |
| Mar 18, 2026 | TDG | Open-market saleCode S · indirect | 49 | $1218.80 | $60K@ $1218.80 | 22,574 | Form 4 |
| Mar 18, 2026 | TDG | Open-market saleCode S · indirect | 80 | $1217.57 | $97K@ $1217.57 | 22,623 | Form 4 |
| Mar 18, 2026 | TDG | Open-market saleCode S · indirect | 188 | $1216.63 | $229K@ $1216.63 | 22,703 | Form 4 |
| Mar 18, 2026 | TDG | Open-market saleCode S · indirect | 125 | $1215.51 | $152K@ $1215.51 | 22,891 | Form 4 |
| Mar 18, 2026 | TDG | Open-market saleCode S · indirect | 552 | $1214.40 | $670K@ $1214.40 | 23,016 | Form 4 |
| Mar 18, 2026 | TDG | Open-market saleCode S · indirect | 1,159 | $1213.45 | $1.4M@ $1213.45 | 23,568 | Form 4 |
| Mar 18, 2026 | TDG | Open-market saleCode S · indirect | 2,025 | $1212.57 | $2.5M@ $1212.57 | 24,727 | Form 4 |
| Mar 18, 2026 | TDG | Open-market saleCode S · indirect | 1,182 | $1211.46 | $1.4M@ $1211.46 | 26,752 | Form 4 |
| Mar 18, 2026 | TDG | Open-market saleCode S · indirect | 1,376 | $1210.39 | $1.7M@ $1210.39 | 27,934 | Form 4 |
| Mar 18, 2026 | TDG | Open-market saleCode S · indirect | 1,246 | $1209.52 | $1.5M@ $1209.52 | 29,310 | Form 4 |
| Mar 18, 2026 | TDG | Open-market saleCode S · indirect | 324 | $1208.56 | $392K@ $1208.56 | 30,556 | Form 4 |
| Mar 18, 2026 | TDG | Open-market saleCode S · indirect | 91 | $1207.38 | $110K@ $1207.38 | 30,880 | Form 4 |
| Mar 18, 2026 | TDG | Open-market saleCode S · indirect | 507 | $1206.05 | $611K@ $1206.05 | 30,971 | Form 4 |
| Mar 18, 2026 | TDG | Open-market saleCode S · indirect | 202 | $1205.42 | $243K@ $1205.42 | 31,478 | Form 4 |
| Mar 18, 2026 | TDG | Option exerciseCode M · indirect | 10,132 | $50.92 | $516K@ $50.92 | 31,680 | Form 4 |
| Mar 3, 2026 | PRMDirector | GiftCode G · direct | 1,101,852 | — | — | 5,086,840 | Form 4 |
| Mar 3, 2026 | PRMDirector | Grant or awardCode A · direct | 5,582,492 | — | — | 6,188,692 | Form 4 |
| Feb 18, 2026 | TDG | Open-market saleCode S · indirect | 130 | $1312.04 | $171K@ $1312.04 | 21,548 | Form 4 |
| Feb 18, 2026 | TDG | Open-market saleCode S · indirect | 2,738 | $1311.07 | $3.6M@ $1311.07 | 21,678 | Form 4 |
| Feb 18, 2026 | TDG | Open-market saleCode S · indirect | 1,154 | $1310.58 | $1.5M@ $1310.58 | 24,416 | Form 4 |
| Feb 18, 2026 | TDG | Open-market saleCode S · indirect | 1,210 | $1309.22 | $1.6M@ $1309.22 | 25,570 | Form 4 |
| Feb 18, 2026 | TDG | Open-market saleCode S · indirect | 973 | $1308.14 | $1.3M@ $1308.14 | 26,780 | Form 4 |
| Feb 18, 2026 | TDG | Open-market saleCode S · indirect | 1,050 | $1307.23 | $1.4M@ $1307.23 | 27,753 | Form 4 |
| Feb 18, 2026 | TDG | Open-market saleCode S · indirect | 425 | $1306.17 | $555K@ $1306.17 | 28,803 | Form 4 |
| Feb 18, 2026 | TDG | Open-market saleCode S · indirect | 587 | $1304.49 | $766K@ $1304.49 | 29,228 | Form 4 |
| Feb 18, 2026 | TDG | Open-market saleCode S · indirect | 560 | $1303.64 | $730K@ $1303.64 | 29,815 | Form 4 |
| Feb 18, 2026 | TDG | Open-market saleCode S · indirect | 201 | $1302.42 | $262K@ $1302.42 | 30,375 | Form 4 |
| Feb 18, 2026 | TDG | Open-market saleCode S · indirect | 190 | $1301.09 | $247K@ $1301.09 | 30,576 | Form 4 |
| Feb 18, 2026 | TDG | Open-market saleCode S · indirect | 30 | $1300.32 | $39K@ $1300.32 | 30,766 | Form 4 |
| Feb 18, 2026 | TDG | Open-market saleCode S · indirect | 920 | $1299.31 | $1.2M@ $1299.31 | 30,796 | Form 4 |
| Feb 18, 2026 | TDG | Option exerciseCode M · indirect | 10,168 | $50.92 | $518K@ $50.92 | 31,716 | Form 4 |
| Nov 24, 2025 | PRMDirector | GiftCode G · direct | 746,767 | — | — | 606,200 | Form 4 |
How this page is built
Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.
Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.
This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.