Katharine Weymouth
CIK 1501808 · last filed 2026-05-28
"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
$12.46M
Companies
5
Total Filings
106
Lifetime Open-Market Net
-$26.03M
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 |
|---|---|---|---|---|---|---|---|
| GHC | Director | 7,615 | $1174.18 | $8.94M | -$9.34M | 11 | 2026-05-28 |
| CABO | Director | 5,325 | $47.00 | $250.3K | -$6.11M | 26 | 2026-05-18 |
| RSGw | Director | 8,138 | — | — | -$774.9K | 49 | 2026-04-17 |
| XMTR | Director | 37,604 | $86.99 | $3.27M | $137.0K | 12 | 2026-03-12 |
| Graham Holdings Co (WPO) Delisted | Director | 19,721 | — | — | -$9.94M | 8 | 2013-10-11 |
Recent Filings · Page 9 of 11
106 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2018-08-31 | CABO | Sell (S) | −254 | -$211.9K | EDGAR |
| 2018-07-09 | GHC | Sell (S) | −1,101 | -$655.2K | EDGAR |
| 2018-05-14 | GHC | Sell (S) | −1,500 | -$903.3K | EDGAR |
| 2018-05-09 | CABO | Grant (A) | — | $0 | EDGAR |
| 2018-05-04 | CABO | Exer (M) | +184 | $0 | EDGAR |
| 2017-12-18 | GHC | Sell (S) | −1,500 | -$848.3K | EDGAR |
| 2017-05-04 | CABO | Mixed | +325 | $0 | EDGAR |
| 2017-03-08 | CABO | Sell (S) | −5,000 | -$3.14M | EDGAR |
| 2016-05-26 | CABO | Sell (S) | −430 | -$208.5K | EDGAR |
| 2016-05-05 | CABO | Mixed | +430 | $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.