Insider · CIK 0001345978
Mark S Shapiro
Files at VMRK (EQUITY RESIDENTIAL), EDR (Endeavor Group Holdings, Inc.), TKO (TKO Group Holdings, Inc.). First filing Feb 25, 2025, latest Jan 22, 2026.
Mark S Shapiro files SEC Form 4 as director and officer at TKO (TKO Group Holdings, Inc.), and also at EDR (Endeavor Group Holdings, Inc.), VMRK (EQUITY RESIDENTIAL). Since Feb 25, 2025, Mark S Shapiro has reported 0 open-market buys worth $0 and 3 open-market sells worth $12M, the latest filed on Jan 22, 2026.
A track record needs three past buys with six months of prices behind them; Mark S Shapiro has 0, so none is measured yet.
The newest scored trade: sold $2.9M of TKO on Jan 22, 2026, filed Jan 22, 2026, scored 25 (weak), under a 10b5-1 plan. In the last 12 months: 0 buys worth $0 and 2 sells worth $9.4M.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
TKO: TKO Group Holdings, Inc.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 25Weak | TKO Group Holdings, Inc. | $2.9M 14,363 shares | -11% | +45% from low-8% from high | |
| 25Weak | TKO Group Holdings, Inc. | $6.5M 32,022 shares | -23% | +48% from low-7% from high | |
| 50Moderate | Endeavor Group Holdings, Inc. | $3.0M 98,135 shares | -33% | - |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Jan 20, 2026 | TKO TKO GROUP HOLDINGS, INC. | 27,921 0.04% of outstanding | $5.7M | Jan 20, 2026 | $6.5M |
| Jan 15, 2026 | TKO TKO GROUP HOLDINGS, INC. | 32,022 0.04% of outstanding | $6.5M | Jan 5, 2026 | $6.5M |
| Feb 25, 2025 | EDR ENDEAVOR GROUP HOLDINGS, INC. | 23,610 0.01% of outstanding | $711k | Feb 25, 2025 | $2.2M |
| Feb 24, 2025 | EDR ENDEAVOR GROUP HOLDINGS, INC. | 74,525 0.02% of outstanding | $2.2M | Feb 24, 2025 | none |
| Jan 3, 2025 | TKO TKO GROUP HOLDINGS, INC. | 63,187 0.08% of outstanding | $9.0M | Jan 3, 2025 | none |
Transactions
Every row this insider has filed, 27 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Jun 18, 2026 | VMRK EQUITY RESIDENTIAL | AGrant or award Restricted Unitsderivative | +3,561 | $0.00 | $0 | 3,561 | Jun 23, 2026 |
| Jan 20, 2026 | TKO TKO Group Holdings, Inc. | MOption exercise Class A Common Stock10b5-1 | +27,921 | $0.00 | $0 | 132,763 | Jan 22, 2026 |
| Jan 22, 2026 | TKO TKO Group Holdings, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -14,363 | $201.98 | $2.9M | 118,400 | Jan 22, 2026 |
| Jan 20, 2026 | TKO TKO Group Holdings, Inc. | MOption exercise Restricted Stock Unitderivative10b5-1 | -27,921 | $0.00 | $0 | 55,843 | Jan 22, 2026 |
| Dec 31, 2025 | TKO TKO Group Holdings, Inc. | MOption exercise Class A Common Stock10b5-1 | +63,187 | $0.00 | $0 | 136,864 | Jan 5, 2026 |
| Jan 5, 2026 | TKO TKO Group Holdings, Inc. | SOpen-market sale Class A Common Stock10b5-1 | -32,022 | $204.08 | $6.5M | 104,842 | Jan 5, 2026 |
| Dec 31, 2025 | TKO TKO Group Holdings, Inc. | MOption exercise Restricted Stock Unitderivative10b5-1 | -63,187 | $0.00 | $0 | 126,375 | Jan 5, 2026 |
| Jan 1, 2026 | TKO TKO Group Holdings, Inc. | AGrant or award Restricted Stock Unitderivative10b5-1 | +59,964 | $0.00 | $0 | 59,964 | Jan 5, 2026 |
| Aug 17, 2025 | TKO TKO Group Holdings, Inc. | AGrant or award Restricted Stock Unitsderivative | +73,969 | $0.00 | $0 | 73,969 | Aug 19, 2025 |
| Jul 1, 2025 | VMRK EQUITY RESIDENTIAL | AGrant or award Restricted Unitsderivative | +3,393 | $0.00 | $0 | 3,393 | Jul 3, 2025 |
| Mar 24, 2025 | EDR Endeavor Group Holdings, Inc. | MOption exercise Class A Common Stock | +149,025 | - | - | 347,192 | Mar 26, 2025 |
| Mar 24, 2025 | EDR Endeavor Group Holdings, Inc. | DDisposition to issuer Class A Common Stock | -347,192 | $27.50 | $9.5M | 0 | Mar 26, 2025 |
| Mar 24, 2025 | EDR Endeavor Group Holdings, Inc. | CConversion Units of Executive Holdcoderivative | -558,855 | - | - | 1,352,290 | Mar 26, 2025 |
| Mar 24, 2025 | EDR Endeavor Group Holdings, Inc. | CConversion Units of Endeavor Operating Companyderivative | +558,855 | - | - | 647,619 | Mar 26, 2025 |
| Mar 24, 2025 | EDR Endeavor Group Holdings, Inc. | DDisposition to issuer Units of Endeavor Operating Companyderivative | -647,619 | - | - | 0 | Mar 26, 2025 |
| Mar 24, 2025 | EDR Endeavor Group Holdings, Inc. | DDisposition to issuer Stock Optionderivative | -1,145,833 | - | - | 0 | Mar 26, 2025 |
| Mar 24, 2025 | EDR Endeavor Group Holdings, Inc. | DDisposition to issuer Profits Unitsderivative | -211,757 | - | - | 0 | Mar 26, 2025 |
| Mar 24, 2025 | EDR Endeavor Group Holdings, Inc. | DDisposition to issuer Profits Unitsderivative | -184,488 | - | - | 0 | Mar 26, 2025 |
| Mar 24, 2025 | EDR Endeavor Group Holdings, Inc. | MOption exercise Restricted Stock Unitderivative | -149,025 | - | - | 0 | Mar 26, 2025 |
| Feb 28, 2025 | VMRK EQUITY RESIDENTIAL | AGrant or award Common Shares Of Beneficial Interest | +1,598 | $62.55 | $100k | 18,935 | Mar 4, 2025 |
| Feb 21, 2025 | EDR Endeavor Group Holdings, Inc. | MOption exercise Class A Common Stock | +149,024 | $0.00 | $0 | 251,990 | Feb 25, 2025 |
| Feb 22, 2025 | EDR Endeavor Group Holdings, Inc. | MOption exercise Class A Common Stock | +44,312 | $0.00 | $0 | 296,302 | Feb 25, 2025 |
| Feb 24, 2025 | EDR Endeavor Group Holdings, Inc. | SOpen-market sale Class A Common Stock | -74,525 | $30.04 | $2.2M | 221,777 | Feb 25, 2025 |
| Feb 25, 2025 | EDR Endeavor Group Holdings, Inc. | SOpen-market sale Class A Common Stock | -23,600 | $30.12 | $711k | 198,177 | Feb 25, 2025 |
| Feb 25, 2025 | EDR Endeavor Group Holdings, Inc. | SOpen-market sale Class A Common Stock | -10 | $31.08 | $311 | 198,167 | Feb 25, 2025 |
| Feb 21, 2025 | EDR Endeavor Group Holdings, Inc. | MOption exercise Restricted Stock Unitderivative | -149,024 | $0.00 | $0 | 149,025 | Feb 25, 2025 |
| Feb 22, 2025 | EDR Endeavor Group Holdings, Inc. | MOption exercise Restricted Stock Unitderivative | -44,312 | $0.00 | $0 | 0 | Feb 25, 2025 |
Questions about Mark S Shapiro
Answered from the filings on this page, as of the latest one.
Is Mark S Shapiro buying or selling?
In the last 12 months Mark S Shapiro reported 0 open-market buys worth $0 and 2 open-market sells worth $9.4M on SEC Form 4; the latest was sold $2.9M of TKO on Jan 22, 2026. Grants, option exercises and tax withholding are not counted.
How did Mark S Shapiro's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Mark S Shapiro has 0.
Where does Mark S Shapiro file Form 4?
Mark S Shapiro has filed Form 4 at TKO (TKO Group Holdings, Inc.) as See Remarks; EDR (Endeavor Group Holdings, Inc.) as See Remarks; VMRK (EQUITY RESIDENTIAL). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.