Douglas J Seith
CIK 1565823 · Chief Operating Officer · last filed 2026-07-02
"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
$9.24M
Companies
1
Total Filings
60
Lifetime Open-Market Net
-$11.83M
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 |
|---|---|---|---|---|---|---|---|
| ATRC | Chief Operating Officer | 229,867 | $40.21 | $9.24M | -$11.83M | 60 | 2026-07-02 |
Recent Filings · Page 2 of 6
60 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 |
|---|---|---|---|---|---|
| 2022-03-03 | ATRC | Mixed | +14,315 | -$796.1K | EDGAR |
| 2021-09-15 | ATRC | Sell (S) | −21,444 | -$1.62M | EDGAR |
| 2021-08-11 | ATRC | Sell (S) | −7,065 | -$570.8K | EDGAR |
| 2021-03-03 | ATRC | Mixed | +4,781 | -$1.29M | EDGAR |
| 2021-02-12 | ATRC | Sell (S) | −11,000 | -$321.8K | EDGAR |
| 2021-02-04 | ATRC | Sell (S) | −14,941 | -$896.5K | EDGAR |
| 2020-12-21 | ATRC | Sell (S) | −18,617 | -$930.9K | EDGAR |
| 2020-10-13 | ATRC | Sell (S) | −29,161 | -$1.17M | EDGAR |
| 2020-03-03 | ATRC | Mixed | −4,082 | -$781.8K | EDGAR |
| 2020-02-13 | ATRC | Mixed | +14,941 | -$420.5K | 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.