THOMPSON JOHN WENDELL
Director · RBRK
As of 2026-09-16, THOMPSON JOHN WENDELL has 212 Form 4 transactions on record across 1 company — 144 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Pattern in the record: open-market sales filed in September in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-09-01 | RBRK | Sale | 4,700 @ $89.02 | $418K | −31.8% of holding | 10,062 | Form 4 |
| 2026-09-01 | RBRK | Sale | 4,600 @ $88.34 | $406K | −23.8% of holding | 14,762 | Form 4 |
| 2026-09-01 | RBRK | Sale | 1,600 @ $88.58 | $142K | −16.0% of holding | 8,400 | Form 4 |
| 2026-09-01 | RBRK | Sale | 900 @ $91.08 | $82K | −9.5% of holding | 8,562 | Form 4 |
| 2026-09-01 | RBRK | Sale | 600 @ $90.24 | $54K | −6.0% of holding | 9,462 | Form 4 |
| 2026-09-01 | RBRK | Sale | 600 @ $89.18 | $54K | −7.1% of holding | 7,800 | Form 4 |
| 2026-09-01 | RBRK | Sale | 200 @ $92.37 | $18K | −2.3% of holding | 8,362 | Form 4 |
| 2026-09-01 | RBRK | Sale | 200 @ $91.66 | $18K | −2.6% of holding | 7,500 | Form 4 |
| 2026-09-01 | RBRK | Sale | 100 @ $90.30 | $9K | −1.3% of holding | 7,700 | Form 4 |
| 2026-08-03 | RBRK | Sale | 5,740 @ $73.73 | $423K | −29.6% of holding | 13,622 | Form 4 |
| 2026-08-03 | RBRK | Sale | 5,260 @ $74.51 | $392K | −38.6% of holding | 8,362 | Form 4 |
| 2026-08-03 | RBRK | Sale | 1,500 @ $73.79 | $111K | −12.0% of holding | 11,000 | Form 4 |
| 2026-08-03 | RBRK | Sale | 1,000 @ $74.59 | $75K | −9.1% of holding | 10,000 | Form 4 |
| 2026-07-01 | RBRK | Sale | 7,000 @ $82.81 | $580K | −43.0% of holding | 9,262 | Form 4 |
| 2026-07-01 | RBRK | Sale | 3,100 @ $82.02 | $254K | −16.0% of holding | 16,262 | Form 4 |
| 2026-07-01 | RBRK | Sale | 1,500 @ $82.91 | $124K | −10.5% of holding | 12,800 | Form 4 |
| 2026-07-01 | RBRK | Sale | 900 @ $83.59 | $75K | −9.7% of holding | 8,362 | Form 4 |
| 2026-07-01 | RBRK | Sale | 700 @ $82.00 | $57K | −4.7% of holding | 14,300 | Form 4 |
| 2026-07-01 | RBRK | Sale | 300 @ $83.70 | $25K | −2.3% of holding | 12,500 | Form 4 |
| 2026-06-01 | RBRK | Sale | 4,000 @ $84.41 | $338K | −29.2% of holding | 9,712 | Form 4 |
| 2026-06-01 | RBRK | Sale | 3,359 @ $85.30 | $287K | −34.6% of holding | 6,353 | Form 4 |
| 2026-06-01 | RBRK | Sale | 1,700 @ $86.07 | $146K | −26.8% of holding | 4,653 | Form 4 |
| 2026-06-01 | RBRK | Sale | 1,140 @ $84.64 | $96K | −6.7% of holding | 15,800 | Form 4 |
| 2026-06-01 | RBRK | Sale | 991 @ $82.73 | $82K | −6.7% of holding | 13,712 | Form 4 |
| 2026-06-01 | RBRK | Sale | 800 @ $85.87 | $69K | −5.1% of holding | 15,000 | Form 4 |
| 2026-06-01 | RBRK | Sale | 750 @ $82.13 | $62K | −4.9% of holding | 14,703 | Form 4 |
| 2026-06-01 | RBRK | Sale | 300 @ $82.45 | $25K | −1.7% of holding | 17,100 | Form 4 |
| 2026-06-01 | RBRK | Sale | 200 @ $79.77 | $16K | −1.3% of holding | 15,453 | Form 4 |
| 2026-06-01 | RBRK | Sale | 160 @ $83.49 | $13K | −0.9% of holding | 16,940 | Form 4 |
| 2026-06-01 | RBRK | Sale | 100 @ $79.91 | $8K | −0.6% of holding | 17,400 | Form 4 |
| 2026-05-01 | RBRK | Sale | 7,197 @ $55.25 | $398K | −46.0% of holding | 8,456 | Form 4 |
| 2026-05-01 | RBRK | Sale | 3,803 @ $55.92 | $213K | −45.0% of holding | 4,653 | Form 4 |
| 2026-05-01 | RBRK | Sale | 2,000 @ $55.39 | $111K | −10.0% of holding | 18,000 | Form 4 |
| 2026-05-01 | RBRK | Sale | 500 @ $56.00 | $28K | −2.8% of holding | 17,500 | Form 4 |
| 2026-04-01 | RBRK | Sale | 5,646 @ $49.22 | $278K | −54.8% of holding | 4,653 | Form 4 |
| 2026-04-01 | RBRK | Sale | 5,354 @ $48.57 | $260K | −34.2% of holding | 10,299 | Form 4 |
| 2026-04-01 | RBRK | Sale | 2,400 @ $48.93 | $117K | −10.7% of holding | 20,100 | Form 4 |
| 2026-04-01 | RBRK | Sale | 100 @ $49.60 | $5K | −0.5% of holding | 20,000 | Form 4 |
| 2026-03-02 | RBRK | Sale | 6,129 @ $53.97 | $331K | −56.8% of holding | 4,653 | Form 4 |
| 2026-03-02 | RBRK | Sale | 4,371 @ $53.30 | $233K | −28.8% of holding | 10,782 | Form 4 |
| 2026-03-02 | RBRK | Sale | 1,300 @ $53.98 | $70K | −5.5% of holding | 22,500 | Form 4 |
| 2026-03-02 | RBRK | Sale | 1,000 @ $53.33 | $53K | −4.0% of holding | 23,800 | Form 4 |
| 2026-03-02 | RBRK | Sale | 500 @ $52.02 | $26K | −3.2% of holding | 15,153 | Form 4 |
| 2026-03-02 | RBRK | Sale | 200 @ $51.87 | $10K | −0.8% of holding | 24,800 | Form 4 |
| 2026-02-02 | RBRK | Sale | 4,498 @ $54.42 | $245K | −30.7% of holding | 10,157 | Form 4 |
| 2026-02-02 | RBRK | Sale | 3,902 @ $55.65 | $217K | −38.4% of holding | 6,255 | Form 4 |
| 2026-02-02 | RBRK | Sale | 2,600 @ $56.26 | $146K | −41.6% of holding | 3,655 | Form 4 |
| 2026-02-02 | RBRK | Sale | 1,100 @ $54.52 | $60K | −3.9% of holding | 27,398 | Form 4 |
| 2026-02-02 | RBRK | Sale | 900 @ $55.64 | $50K | −3.3% of holding | 26,498 | Form 4 |
| 2026-02-02 | RBRK | Sale | 500 @ $56.42 | $28K | −1.9% of holding | 25,998 | Form 4 |
| 2026-01-05 | RBRK | Sale | 7,100 @ $73.56 | $522K | −51.8% of holding | 6,602 | Form 4 |
| 2026-01-05 | RBRK | Sale | 3,600 @ $74.29 | $267K | −54.5% of holding | 3,002 | Form 4 |
| 2026-01-05 | RBRK | Sale | 1,800 @ $73.61 | $132K | −51.5% of holding | 1,698 | Form 4 |
| 2026-01-05 | RBRK | Sale | 600 @ $74.41 | $45K | −35.3% of holding | 1,098 | Form 4 |
| 2026-01-05 | RBRK | Sale | 300 @ $75.07 | $23K | −10.0% of holding | 2,702 | Form 4 |
| 2026-01-05 | RBRK | Sale | 100 @ $75.19 | $8K | −9.1% of holding | 998 | Form 4 |
| 2025-12-01 | RBRK | Sale | 4,586 @ $69.02 | $317K | −79.3% of holding | 1,198 | Form 4 |
| 2025-12-01 | RBRK | Sale | 4,223 @ $68.40 | $289K | −42.2% of holding | 5,784 | Form 4 |
| 2025-12-01 | RBRK | Sale | 200 @ $69.83 | $14K | −16.7% of holding | 998 | Form 4 |
| 2025-11-03 | RBRK | Sale | 7,403 @ $75.55 | $559K | −83.2% of holding | 1,498 | Form 4 |
| 2025-11-03 | RBRK | Sale | 1,106 @ $74.43 | $82K | −11.1% of holding | 8,901 | Form 4 |
| 2025-11-03 | RBRK | Sale | 500 @ $76.21 | $38K | −33.4% of holding | 998 | Form 4 |
| 2025-10-01 | RBRK | Sale | 5,358 @ $83.07 | $445K | −83.0% of holding | 1,098 | Form 4 |
| 2025-10-01 | RBRK | Sale | 3,551 @ $82.27 | $292K | −35.5% of holding | 6,456 | Form 4 |
| 2025-10-01 | RBRK | Sale | 100 @ $83.77 | $8K | −9.1% of holding | 998 | Form 4 |
| 2025-09-02 | RBRK | Sale | 5,375 @ $87.74 | $472K | −58.4% of holding | 3,823 | Form 4 |
| 2025-09-02 | RBRK | Sale | 2,825 @ $88.35 | $250K | −73.9% of holding | 998 | Form 4 |
| 2025-09-02 | RBRK | Sale | 809 @ $86.62 | $70K | −8.1% of holding | 9,198 | Form 4 |
| 2025-08-01 | RBRK | Sale | 3,799 @ $86.82 | $330K | −42.2% of holding | 5,208 | Form 4 |
| 2025-08-01 | RBRK | Sale | 2,910 @ $87.75 | $255K | −55.9% of holding | 2,298 | Form 4 |
| 2025-08-01 | RBRK | Sale | 1,200 @ $88.87 | $107K | −52.2% of holding | 1,098 | Form 4 |
| 2025-08-01 | RBRK | Sale | 700 @ $85.89 | $60K | −7.2% of holding | 9,007 | Form 4 |
| 2025-08-01 | RBRK | Sale | 300 @ $84.58 | $25K | −3.0% of holding | 9,707 | Form 4 |
| 2025-08-01 | RBRK | Sale | 100 @ $90.46 | $9K | −9.1% of holding | 998 | Form 4 |
| 2025-07-01 | RBRK | Sale | 4,096 @ $85.47 | $350K | −49.3% of holding | 4,208 | Form 4 |
| 2025-07-01 | RBRK | Sale | 1,700 @ $86.20 | $147K | −40.4% of holding | 2,508 | Form 4 |
| 2025-07-01 | RBRK | Sale | 1,703 @ $84.41 | $144K | −17.0% of holding | 8,304 | Form 4 |
| 2025-07-01 | RBRK | Sale | 1,110 @ $89.24 | $99K | −52.7% of holding | 998 | Form 4 |
| 2025-07-01 | RBRK | Sale | 400 @ $87.56 | $35K | −15.9% of holding | 2,108 | Form 4 |
| 2025-06-02 | RBRK | Sale | 4,109 @ $99.41 | $408K | −80.5% of holding | 998 | Form 4 |
111 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-09-01 | RBRK | Option exercise | 11,000 | 66,946 | Form 4 |
| 2026-09-01 | RBRK | Conversion | 11,000 | 19,362 | Form 4 |
| 2026-09-01 | RBRK | Option exercise | 11,000 | 61,001 | Form 4 |
| 2026-09-01 | RBRK | Conversion | 11,000 | 50,001 | Form 4 |
| 2026-09-01 | RBRK | Conversion | 11,000 | 50,001 | Form 4 |
| 2026-09-01 | RBRK | Option exercise | 11,000 | 61,001 | Form 4 |
| 2026-09-01 | RBRK | Conversion | 11,000 | 50,001 | Form 4 |
| 2026-09-01 | RBRK | Conversion | 11,000 | 50,001 | Form 4 |
| 2026-09-01 | RBRK | Option exercise | 11,000 | 61,001 | Form 4 |
| 2026-09-01 | RBRK | Option exercise | 11,000 | 61,001 | Form 4 |
| 2026-08-03 | RBRK | Option exercise | 11,000 | 77,946 | Form 4 |
| 2026-08-03 | RBRK | Conversion | 11,000 | 19,362 | Form 4 |
| 2026-08-03 | RBRK | Conversion | 11,000 | 50,001 | Form 4 |
| 2026-08-03 | RBRK | Conversion | 11,000 | 50,001 | Form 4 |
| 2026-08-03 | RBRK | Option exercise | 11,000 | 61,001 | Form 4 |
| 2026-08-03 | RBRK | Option exercise | 11,000 | 61,001 | Form 4 |
| 2026-07-01 | RBRK | Conversion | 11,000 | 19,362 | Form 4 |
| 2026-07-01 | RBRK | Option exercise | 11,000 | 88,946 | Form 4 |
| 2026-07-01 | RBRK | Conversion | 11,000 | 50,001 | Form 4 |
| 2026-07-01 | RBRK | Option exercise | 11,000 | 61,001 | Form 4 |
| 2026-07-01 | RBRK | Conversion | 11,000 | 50,001 | Form 4 |
| 2026-07-01 | RBRK | Option exercise | 11,000 | 61,001 | Form 4 |
| 2026-06-03 | RBRK | Award / grant | 3,709 | 8,362 | Form 4 |
| 2026-06-01 | RBRK | Option exercise | 11,000 | 99,946 | Form 4 |
| 2026-06-01 | RBRK | Conversion | 11,000 | 15,653 | Form 4 |
| 2026-06-01 | RBRK | Option exercise | 11,000 | 61,001 | Form 4 |
| 2026-06-01 | RBRK | Conversion | 11,000 | 50,001 | Form 4 |
| 2026-06-01 | RBRK | Option exercise | 11,000 | 61,001 | Form 4 |
| 2026-06-01 | RBRK | Conversion | 11,000 | 50,001 | Form 4 |
| 2026-05-01 | RBRK | Option exercise | 11,000 | 110,946 | Form 4 |
| 2026-05-01 | RBRK | Conversion | 11,000 | 15,653 | Form 4 |
| 2026-05-01 | RBRK | Option exercise | 11,000 | 61,001 | Form 4 |
| 2026-05-01 | RBRK | Conversion | 11,000 | 50,001 | Form 4 |
| 2026-05-01 | RBRK | Option exercise | 11,000 | 61,001 | Form 4 |
| 2026-05-01 | RBRK | Conversion | 11,000 | 50,001 | Form 4 |
| 2026-04-01 | RBRK | Conversion | 11,000 | 15,653 | Form 4 |
| 2026-04-01 | RBRK | Option exercise | 11,000 | 121,946 | Form 4 |
| 2026-04-01 | RBRK | Conversion | 11,000 | 50,001 | Form 4 |
| 2026-04-01 | RBRK | Option exercise | 11,000 | 61,001 | Form 4 |
| 2026-04-01 | RBRK | Conversion | 11,000 | 50,001 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.