Rachel Lam
CIK 1579232 · last filed 2026-08-12
Rachel Lam is a corporate insider who has filed 53 SEC Form 4 insider transactions across 6 companies since 2013. The most recent filing shows the insider sold $241.6K of MGNI on Aug 12, 2026. Across all open-market trades the lifetime net is −$1.2M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $8.4M across reported positions.
"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.
MGNI 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
411 1ST AVENUE SOUTH, SUITE 501
SEATTLE, WA 98104
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| MGNI | Director | 230,620 | $21.62 | $4.99M | -$698.0K | 13 | 2026-08-12 |
| PRCH | Director | 193,931 | $17.37 | $3.37M | -$610.5K | 11 | 2026-06-12 |
| Innovid Corp. (CTV.WS) Delisted | Director | 287,695 | $0.09 | $25.9K | $10.9K | 4 | 2023-08-16 |
| RUBI | Director | 4 | $0.15 | $1 | $0 | 1 | 2020-04-03 |
| Telaria, Inc. (TLRA) Delisted | Director | 144,607 | — | — | $0 | 2 | 2019-06-12 |
| Telaria, Inc. (TRMR) Delisted | Director | 94,576 | $5.02 | $474.8K | $140.8K | 17 | 2017-08-11 |
Recent Filings
53 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-08-12 | MGNI | Sell (S) | −10,000 | -$241.6K | EDGAR |
| 2026-08-10 | MGNI | Notice (144) | −10,000 | -$241.6K | EDGAR |
| 2026-06-12 | PRCH | Grant (A) | +15,940 | $0 | EDGAR |
| 2026-06-10 | MGNI | Grant (A) | +13,798 | $0 | EDGAR |
| 2025-08-14 | MGNI | Sell (S) | −15,000 | -$333.8K | EDGAR |
| 2025-08-12 | MGNI | Notice (144) | −15,000 | -$333.7K | EDGAR |
| 2025-08-08 | PRCH | Sell (S) | −25,000 | -$380.3K | EDGAR |
| 2025-08-06 | PRCH | Notice (144) | −25,000 | -$329.0K | EDGAR |
| 2025-06-13 | PRCH | Notice (144) | −25,000 | -$281.5K | EDGAR |
| 2025-06-13 | PRCH | Mixed | −11,865 | -$268.8K | 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.