BRADLEY E SINGER
CIK 1159423 · SEVP & Chief Financial Officer · last filed 2026-06-15
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
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Disclosed Exposure
$4.00B
Companies
10
Total Filings
73
Lifetime Open-Market Net
-$330.61M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| SG | Director | 249,060 | $5.40 | $1.34M | -$3.85M | 10 | 2026-06-15 |
| WRBY | Director | 125,030 | $26.46 | $3.31M | -$184.2K | 6 | 2026-06-10 |
| Redfin Corp (RDFN) Delisted | Director | 125,477 | $11.30 | $1.42M | $560.1K | 10 | 2025-06-30 |
| CCI | Director | 5,474 | $75.59 | $413.8K | $0 | 3 | 2025-02-28 |
| MSI | Director | 8,517,576 | $467.55 | $3.98B | -$277.21M | 1 | 2016-03-22 |
| Warner Bros. Discovery, Inc. (DISCB) Delisted | SEVP & Chief Financial Officer | 20,950 | $24.45 | $512.2K | -$36.56M | 14 | 2012-03-16 |
| Warner Bros. Discovery, Inc. (DISBD) Delisted | SEVP; Chief Financial Officer | — | — | — | $0 | 1 | 2008-10-03 |
| AMT | CFO and Treasurer | 73,200 | $172.54 | $12.63M | -$13.36M | 9 | 2008-05-15 |
| Frontier Communications Parent, Inc. (CZN) Delisted | Director | 20,883 | — | — | $0 | 7 | 2008-05-15 |
| MARTHA STEWART LIVING OMNIMEDIA INC (MSO) Delisted | Director | 4,325 | — | — | $0 | 7 | 2008-04-03 |
Recent Filings · Page 6 of 8
73 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2008-05-15 | AMT | Mixed | — | -$2.61M | EDGAR |
| 2008-05-15 | Frontier Communications Parent, Inc. (CZN) Delisted | Mixed | — | -$226.2K | EDGAR |
| 2008-04-03 | MARTHA STEWART LIVING OMNIMEDIA INC (MSO) Delisted | Grant (A) | +496 | $3.7K | EDGAR |
| 2008-04-02 | Frontier Communications Parent, Inc. (CZN) Delisted | Grant (A) | — | $0 | EDGAR |
| 2008-03-18 | AMT | Mixed | — | -$2.51M | EDGAR |
| 2008-01-03 | Frontier Communications Parent, Inc. (CZN) Delisted | Grant (A) | — | $0 | EDGAR |
| 2008-01-03 | MARTHA STEWART LIVING OMNIMEDIA INC (MSO) Delisted | Grant (A) | +397 | $3.7K | EDGAR |
| 2007-11-15 | AMT | Sell (S) | −9,600 | -$417.5K | EDGAR |
| 2007-11-15 | AMT | Mixed | +9,600 | -$2.60M | EDGAR |
| 2007-10-02 | MARTHA STEWART LIVING OMNIMEDIA INC (MSO) Delisted | Grant (A) | +327 | $3.8K | EDGAR |
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.