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 |
|---|---|---|---|---|---|---|
| Aug 31, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $369.47 | $369 |
| Aug 28, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $364.42 | $364 |
| Aug 27, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $365.74 | $366 |
| Aug 26, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $375.00 | $375 |
| Aug 25, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $372.58 | $373 |
| Aug 24, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $377.39 | $377 |
| Aug 21, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $381.51 | $382 |
| Aug 20, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $377.85 | $378 |
| Aug 19, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $372.10 | $372 |
| Aug 18, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $361.16 | $361 |
| Aug 17, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $357.32 | $357 |
| Aug 14, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $357.56 | $358 |
| Aug 13, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $343.02 | $343 |
| Aug 12, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $353.15 | $353 |
| Aug 11, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $352.62 | $353 |
| Aug 10, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $345.10 | $345 |
| Aug 7, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $353.28 | $353 |
| Aug 6, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $355.62 | $356 |
| Aug 5, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $385.95 | $386 |
| Aug 4, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $403.53 | $404 |
| Aug 3, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $392.66 | $393 |
| Jul 31, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $400.09 | $400 |
| Jul 30, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $389.14 | $389 |
| Jul 29, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $394.14 | $394 |
| Jul 28, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $393.09 | $393 |
| Jul 27, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $409.31 | $409 |
| Jul 24, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $423.94 | $424 |
| Jul 23, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $429.51 | $430 |
| Jul 22, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $427.42 | $427 |
| Jul 21, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $413.48 | $413 |
| Jul 20, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $416.47 | $416 |
| Jul 17, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $420.15 | $420 |
| Jul 16, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $416.05 | $416 |
| Jul 15, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $414.13 | $414 |
| Jul 14, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $408.37 | $408 |
| Jul 13, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $411.10 | $411 |
| Jul 10, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $385.84 | $386 |
| Jul 9, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $400.13 | $400 |
| Jul 8, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $397.47 | $397 |
| Jul 7, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $400.67 | $401 |
| Jul 6, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $408.89 | $409 |
| Jul 2, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $402.64 | $403 |
| Jul 1, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $426.00 | $426 |
| Jun 30, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $435.74 | $436 |
| Jun 29, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $410.88 | $411 |
| Jun 26, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $397.48 | $397 |
| Jun 25, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $388.58 | $389 |
| Jun 24, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $374.10 | $374 |
| Jun 23, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $370.60 | $371 |
| Jun 22, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $351.33 | $351 |
| Jun 18, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $355.47 | $355 |
| Jun 17, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $356.60 | $357 |
| Jun 16, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $356.31 | $356 |
| Jun 15, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $369.40 | $369 |
| Jun 15, 2026 | Doyle Peter | Director | Buy(P) | 4 | $381.95 | $2K |
| Jun 12, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $384.53 | $385 |
| Jun 11, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $370.47 | $370 |
| Jun 10, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $380.37 | $380 |
| Jun 9, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $386.62 | $387 |
| Jun 8, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $402.65 | $403 |
| Jun 8, 2026 | Steddum Chris | Chief Financial Officer | Sell(S) | 730 | $400.21 | $292K |
| Jun 8, 2026 | Steddum Chris | Chief Financial Officer | Sell(S) | 100 | $401.18 | $40K |
| Jun 5, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $394.84 | $395 |
| Jun 5, 2026 | Steddum Chris | Chief Financial Officer | Sell(S) | 3K | $400.25 | $1.3M |
| Jun 4, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $406.73 | $407 |
| Jun 3, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $406.72 | $407 |
| Jun 2, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $368.20 | $368 |
| Jun 1, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $387.38 | $387 |
| May 29, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $395.39 | $395 |
| May 28, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $406.26 | $406 |
| May 27, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $404.86 | $405 |
| May 26, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $402.90 | $403 |
| May 22, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $400.85 | $401 |
| May 21, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $396.43 | $396 |
| May 20, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 2 | $395.93 | $792 |
| May 19, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 2 | $390.21 | $780 |
| May 18, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $385.14 | $385 |
| May 15, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $387.62 | $388 |
| May 14, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $385.21 | $385 |
| May 13, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $381.10 | $381 |
| May 12, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $393.71 | $394 |
| May 11, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Grant(A) | 1 | $401.44 | $401 |
| May 8, 2026 | Doyle Peter | Director | Grant(A) | 254 | — | $0 |
| May 8, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Grant(A) | 1 | $402.00 | $402 |
| May 7, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $401.32 | $401 |
| May 6, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $419.02 | $419 |
| May 5, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $432.71 | $433 |
| May 4, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $438.69 | $439 |
| May 1, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $433.13 | $433 |
| Apr 30, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $436.80 | $437 |
| Apr 29, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $435.76 | $436 |
| Apr 28, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $435.73 | $436 |
| Apr 27, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $436.44 | $436 |
| Apr 24, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $435.40 | $435 |
| Apr 23, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $436.73 | $437 |
| Apr 22, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $437.87 | $438 |
| Apr 21, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $441.84 | $442 |
| Apr 20, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $427.65 | $428 |
| Apr 17, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $419.94 | $420 |
| Apr 16, 2026 | Horizon Kinetics Asset Management LLC | 10% Owner | Buy(P) | 1 | $424.47 | $424 |
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 2006-01-02 → 2026-09-02. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).
Connected pages for TPL