CHRISTOPHER A SEAMS
CIK 1212426 · Executive Vice President · last filed 2026-05-22
"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
$12.83M
Companies
5
Total Filings
66
Lifetime Open-Market Net
-$27.42M
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 |
|---|---|---|---|---|---|---|---|
| ONTO | Director | 38,513 | $310.52 | $11.96M | $0 | 7 | 2026-05-22 |
| XPER | Director | 130,269 | $6.71 | $874.1K | -$132.5K | 14 | 2026-04-21 |
| ONTO INNOVATION INC. (NANO) Delisted | Director | 23,229 | — | — | $0 | 5 | 2019-05-23 |
| Xperi Corp (TSRA) Delisted | Director | 34,780 | — | — | -$242.3K | 6 | 2017-01-11 |
| CYPRESS SEMICONDUCTOR CORP /DE/ (CY) Delisted | Executive Vice President | 779,929 | — | — | -$27.05M | 33 | 2013-03-25 |
Recent Filings · Page 4 of 7
66 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 |
|---|---|---|---|---|---|
| 2013-06-10 | Xperi Corp (TSRA) Delisted | Grant (A) | +7,166 | $0 | EDGAR |
| 2013-05-31 | Xperi Corp (TSRA) Delisted | Buy (P) | +20,000 | $422.2K | EDGAR |
| 2013-03-27 | Xperi Corp (TSRA) Delisted | Grant (A) | +10,000 | $0 | EDGAR |
| 2013-03-25 | CYPRESS SEMICONDUCTOR CORP /DE/ (CY) Delisted | Grant (A) | — | $0 | EDGAR |
| 2013-01-02 | CYPRESS SEMICONDUCTOR CORP /DE/ (CY) Delisted | Mixed | +44,794 | -$411.8K | EDGAR |
| 2012-12-14 | CYPRESS SEMICONDUCTOR CORP /DE/ (CY) Delisted | Gift (G) | −1,500 | -$16.1K | EDGAR |
| 2012-07-06 | CYPRESS SEMICONDUCTOR CORP /DE/ (CY) Delisted | Other (J) | +1,476 | $16.8K | EDGAR |
| 2012-02-27 | CYPRESS SEMICONDUCTOR CORP /DE/ (CY) Delisted | Mixed | +136,318 | -$1.96M | EDGAR |
| 2011-10-04 | CYPRESS SEMICONDUCTOR CORP /DE/ (CY) Delisted | Tax (F) | −3,463 | -$51.8K | EDGAR |
| 2011-09-19 | CYPRESS SEMICONDUCTOR CORP /DE/ (CY) Delisted | Mixed | — | -$4.86M | 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.