Robert S Silberman
CIK 1256121 · CHAIRMAN · last filed 2026-10-06
Robert S Silberman is a CHAIRMAN who has filed 131 SEC Form 4 insider transactions across 5 companies since 2007. The most recent filing, for PARR, was dated Oct 6, 2026. Across all open-market trades the lifetime net is −$117.4M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $32.8M across reported positions. 32 SEC filings were submitted jointly with TWENTY-FIRST CENTURY FOX, INC.
"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.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
STRA price and trades
Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.
Shares held
Shares owned after each reported transaction on this company (direct holdings as reported).
Open-market buying and selling
by monthDollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.
Exposure by company
latestMost recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.
Filer Profile
2303 DULLES STATION BOULEVARD
HERNDON, VA 20171
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| PARR | Director | 60,000 | $83.17 | $4.99M | -$3.75M | 53 | 2026-10-06 |
| STRA | CHAIRMAN | 319,870 | $81.19 | $25.97M | -$114.54M | 27 | 2026-03-16 |
| COVANTA HOLDING CORP (CVA) Delisted | Director | 0 | $20.26 | $0 | $510.3K | 21 | 2021-12-01 |
| TWENTY-FIRST CENTURY FOX, INC. (TFCFA) Delisted | Director | 0 | — | — | $0 | 1 | 2019-03-20 |
| FOXA | Director | 28,633 | $65.33 | $1.87M | $357.8K | 29 | 2019-03-14 |
Recent Filings
131 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-10-06 | PARR | Grant (A) | — | $0 | EDGAR |
| 2026-07-07 | PARR | Grant (A) | — | $0 | EDGAR |
| 2026-04-07 | PARR | Grant (A) | — | $0 | EDGAR |
| 2026-03-16 | STRA | Buy (P) | +718 | $58.0K | EDGAR |
| 2026-02-26 | STRA | Mixed | +24,386 | -$2.12M | EDGAR |
| 2026-01-07 | PARR | Grant (A) | — | $0 | EDGAR |
| 2025-10-07 | PARR | Grant (A) | — | $0 | EDGAR |
| 2025-07-08 | PARR | Grant (A) | — | $0 | EDGAR |
| 2025-04-08 | PARR | Grant (A) | — | $0 | EDGAR |
| 2025-03-05 | STRA | Buy (P) | +10,528 | $849.6K | EDGAR |
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.