MARK S SHAPIRO
CIK 1345978 · See Remarks · last filed 2026-05-13
"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
$35.31M
Companies
10
Total Filings
125
Lifetime Open-Market Net
-$55.00M
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 |
|---|---|---|---|---|---|---|---|
| TKO | See Remarks | 123,207 | $203.36 | $25.06M | -$14.49M | 10 | 2026-05-13 |
| EQR | Director | 23,636 | $67.34 | $1.59M | -$4.02M | 24 | 2025-07-03 |
| Endeavor Group Holdings, Inc. (EDR) Delisted | See Remarks | 251,990 | $29.25 | $7.37M | -$34.67M | 14 | 2025-02-25 |
| LYV | Director | 45,492 | $172.51 | $7.85M | -$1.66M | 16 | 2021-06-11 |
| Frontier Communications Parent, Inc. (FTR) Delisted | Director | 37,824 | — | — | $498.9K | 30 | 2019-04-02 |
| Frontier Communications Parent, Inc. (FTRPR) Delisted | Director | — | — | — | $0 | 6 | 2018-04-03 |
| PZZA | Director | 25,070 | $32.60 | $817.3K | -$448.9K | 11 | 2018-03-05 |
| Frontier Communications Parent, Inc. (FTRP.R) Delisted | Director | — | — | — | $0 | 4 | 2016-04-04 |
| EQUITY RESIDENTIAL (EQRpN) Delisted | Director | 3,158 | — | — | -$342.9K | 4 | 2012-06-22 |
| Six Flags Entertainment Corp/OLD (SIXpB) Delisted | President, CEO | 1,652,596 | — | — | $128.2K | 4 | 2007-11-15 |
Recent Filings · Page 5 of 13
125 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2019-11-18 | EQR | Grant (A) | +1,371 | $100.0K | EDGAR |
| 2019-07-01 | EQR | Grant (A) | — | $0 | EDGAR |
| 2019-06-10 | LYV | Grant (A) | +2,380 | $0 | EDGAR |
| 2019-05-20 | LYV | Sell (S) | −8,000 | -$519.2K | EDGAR |
| 2019-04-02 | Frontier Communications Parent, Inc. (FTR) Delisted | Grant (A) | — | $0 | EDGAR |
| 2019-01-03 | Frontier Communications Parent, Inc. (FTR) Delisted | Grant (A) | — | $0 | EDGAR |
| 2018-11-15 | EQR | Grant (A) | +1,751 | $100.0K | EDGAR |
| 2018-10-02 | Frontier Communications Parent, Inc. (FTR) Delisted | Grant (A) | — | $0 | EDGAR |
| 2018-07-03 | Frontier Communications Parent, Inc. (FTR) Delisted | Grant (A) | — | $0 | EDGAR |
| 2018-06-18 | EQR | Grant (A) | — | $0 | EDGAR |
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.