Albert E Rosenthaler
CIK 1195195 · Chief Corp. Dev. Officer · last filed 2025-06-20
"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
$1.04M
Companies
27
Total Filings
243
Lifetime Open-Market Net
-$66.02M
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
LSXMK 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
latestOfficerDirector10% owner* stale (no filing in 3 yrs)
Most 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
Reported Address
12300 LIBERTY BLVDENGLEWOOD, CO 80112
Related Filers
Qurate Retail, Inc. — 102 joint filings, latest 2024-04-03
Liberty Media Corp — 41 joint filings, latest 2023-08-16
Liberty Broadband Corp — 19 joint filings, latest 2023-03-17
Liberty TripAdvisor Holdings, Inc. — 13 joint filings, latest 2025-04-30
Starz — 12 joint filings, latest 2012-12-19
Liberty Expedia Holdings, Inc. — 8 joint filings, latest 2019-07-30
GCI LIBERTY, INC. — 7 joint filings, latest 2020-12-22
Discovery Holding CO — 5 joint filings, latest 2008-09-18
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses.
View filings on SEC EDGAR.
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 |
|---|---|---|---|---|---|---|---|
| TRIP | Director | 111,848 | $9.27 | $1.04M | $0 | 14 | 2025-06-20 |
| QVC Group, Inc. (QRTEP) Delisted | Chief Corp. Dev. Officer | 234,350 | $39.91 | $9.35M | -$16.8K | 9 | 2024-04-03 |
| Liberty Media Corp (LSXMK) Delisted | Chief Corp. Dev. Officer | 180,904 | $22.29 | $4.03M | -$14.89M | 26 | 2023-08-16 |
| FWONK | Chief Corp. Dev. Officer | 0 | $89.93 | $0 | -$9.26M | 18 | 2023-08-16 |
| Liberty TripAdvisor Holdings, Inc. (LTRPB) Delisted | Chief Corp. Dev. Officer | 46,729 | $10.50 | $490.7K | -$21.4K | 8 | 2023-03-21 |
| CHARTER COMMUNICATIONS, INC. /MO/ (LBRDP) Delisted | Chief Corp. Dev. Officer | 73,251 | $22.13 | $1.62M | -$1.91M | 7 | 2023-03-17 |
| CHARTER COMMUNICATIONS, INC. /MO/ (LBRDK) Delisted | Chief Corp. Dev. Officer | 73,251 | $36.02 | $2.64M | -$4.45M | 13 | 2023-03-17 |
| GLIBA | Chief Corp. Dev. Officer | 0 | $20.27 | $0 | $0 | 1 | 2020-12-22 |
| GRIZZLY MERGER SUB 1, LLC (GLIBP) Delisted | Chief Corp. Dev. Officer | 55,607 | — | — | -$64.5K | 5 | 2020-12-09 |
| Liberty Media Corp (LSXMR) Delisted | Chief Corp. Dev. Officer | 171,333 | — | — | $0 | 1 | 2020-05-28 |
| QVC Group, Inc. (QRTEB) Delisted | Chief Corp. Dev. Officer | 181,483 | $2.00 | $363.0K | -$490.7K | 4 | 2020-03-17 |
| Liberty Expedia Holdings, Inc. (LEXEB) Delisted | Chief Corp. Dev. Officer | 30,226 | — | — | -$1.28M | 1 | 2018-08-30 |
| QVC Group, Inc. (QVCB) Delisted | Chief Corp. Dev. Officer | 206,027 | — | — | -$2.47M | 18 | 2018-03-07 |
| Liberty Expedia Holdings, Inc. (QVCA) Delisted | Chief Corp. Dev. Officer | 19,239 | — | — | $0 | 5 | 2017-03-17 |
| CHARTER COMMUNICATIONS, INC. /MO/ (LBRD.K) Delisted | Chief Tax Officer | 19,847 | — | — | -$715.2K | 6 | 2016-08-19 |
| Liberty Media Corp (LSXM.B) Delisted | Chief Tax Officer | 25,308 | — | — | $0 | 3 | 2016-07-01 |
| Liberty Media Corp (LSXM.K) Delisted | Chief Tax Officer | 133,929 | — | — | $0 | 1 | 2016-04-22 |
| Liberty Media Corp (LMCK) Delisted | Chief Tax Officer | 140,047 | — | — | -$2.58M | 7 | 2016-04-01 |
| CHARTER COMMUNICATIONS, INC. /MO/ (LBRK.R) Delisted | Senior Vice President | — | — | — | $0 | 1 | 2014-12-23 |
| Liberty Media Corp (LMCB) Delisted | Senior Vice President | 227,391 | — | — | -$1.58M | 2 | 2013-12-20 |
| QVC Group, Inc. (LVNTA) Delisted | Senior Vice President | 305,492 | — | — | -$4.51M | 15 | 2013-12-20 |
| Starz Acquisition LLC (LMCA) Delisted | Senior Vice President | 80,569 | — | — | -$2.11M | 10 | 2012-12-19 |
| QVC Group, Inc. (LINTB) Delisted | Senior Vice President | 122,619 | — | — | -$9.02M | 30 | 2012-07-31 |
| Starz Acquisition LLC (LCPAD) Delisted | Senior Vice President | 14,026 | — | — | $0 | 1 | 2011-09-27 |
| QVC Group, Inc. (LSTZA) Delisted | Senior Vice President | 14,026 | — | — | -$4.18M | 23 | 2011-09-19 |
| QVC Group, Inc. (LSTAV) Delisted | Senior Vice President | 54,828 | — | — | -$4.28M | 2 | 2009-11-13 |
| Discovery Holding CO (DISCB) Delisted | Senior Vice President | 0 | $24.45 | $0 | -$2.20M | 4 | 2008-09-18 |
Recent Filings · Page 6 of 25
243 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 |
|---|---|---|---|---|---|
| 2021-03-17 | FWONK | Mixed | +9,243 | -$312.7K | EDGAR |
| 2021-03-17 | CHARTER COMMUNICATIONS, INC. /MO/ (LBRDP) Delisted | Mixed | +2,456 | -$307.7K | EDGAR |
| 2021-03-17 | CHARTER COMMUNICATIONS, INC. /MO/ (LBRDK) Delisted | Mixed | +2,456 | -$307.7K | EDGAR |
| 2021-03-17 | Liberty TripAdvisor Holdings, Inc. (LTRPB) Delisted | Mixed | +10,206 | -$36.0K | EDGAR |
| 2021-03-17 | QVC Group, Inc. (QRTEP) Delisted | Mixed | +19,168 | -$257.3K | EDGAR |
| 2021-01-28 | — | Buy (P) | +100,000 | $1.00M | |
| 2020-12-22 | CHARTER COMMUNICATIONS, INC. /MO/ (LBRDP) Delisted | Grant (A) | +31,265 | $0 | EDGAR |
| 2020-12-22 | CHARTER COMMUNICATIONS, INC. /MO/ (LBRDK) Delisted | Grant (A) | +31,265 | $0 | EDGAR |
| 2020-12-22 | GLIBA | Disp (D) | −53,906 | $0 | EDGAR |
| 2020-12-14 | Liberty Media Corp (LSXMK) Delisted | Grant (A) | — | $0 | 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.