Geoffrey G Ribar
CIK 1247434 · Sr. VP, CFO · last filed 2026-06-05
Geoffrey G Ribar is a Sr. VP, CFO who has filed 102 SEC Form 4 insider transactions across 7 companies since 2007. The most recent filing, for ACTG, was dated Aug 11, 2026. Across all open-market trades the lifetime net is −$19.6M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $61.9M across reported positions. 5 SEC filings were submitted jointly with ACACIA RESEARCH CORP.
"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.
CDNS 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
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| QS | Director | 60,285 | $4.58 | $275.8K | $0 | 2 | 2026-06-05 |
| MRAM | Director | 97,915 | $12.96 | $1.27M | -$1.32M | 13 | 2026-05-22 |
| MTSI | Director | 12,563 | $226.04 | $2.84M | -$2.94M | 19 | 2026-05-13 |
| ACTG | Director | 85,827 | $4.32 | $370.8K | $0 | 3 | 2025-06-03 |
| AQUANTIA CORP (AQ) Delisted | Director | 13,122 | — | — | $0 | 3 | 2019-06-21 |
| CDNS | Sr. VP, CFO | 169,413 | $337.42 | $57.16M | -$15.29M | 49 | 2017-08-30 |
| SIRF TECHNOLOGY HOLDINGS INC (SIRF) Delisted | Sr. Vice President & CFO | 26,801 | — | — | $0 | 3 | 2008-01-22 |
Recent Filings
102 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-08-11 | ACTG | Notice (144) | −85,827 | -$395.2K | EDGAR |
| 2026-06-05 | QS | Grant (A) | +24,183 | $0 | EDGAR |
| 2026-05-22 | MRAM | Grant (A) | +3,852 | $0 | EDGAR |
| 2026-05-21 | MRAM | Sell (S) | −27,488 | -$793.6K | EDGAR |
| 2026-05-20 | MRAM | Notice (144) | −27,488 | -$793.5K | EDGAR |
| 2026-05-13 | MTSI | Sell (S) | −1,623 | -$587.3K | EDGAR |
| 2026-05-11 | MTSI | Notice (144) | −1,623 | -$587.3K | EDGAR |
| 2026-03-10 | MTSI | Grant (A) | +776 | $0 | EDGAR |
| 2026-02-27 | MTSI | Sell (S) | −2,244 | -$569.1K | EDGAR |
| 2026-02-25 | MTSI | Notice (144) | −2,244 | -$569.1K | 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.