Karl S. Dahlquist
CIK 1861996 · Chief Legal 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
$3.89M
Companies
1
Total Filings
23
Lifetime Open-Market Net
-$897.8K
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 Legal Officer | 96,689 | $40.21 | $3.89M | -$897.8K | 18 | 2026-07-02 |
Recent Filings · Page 2 of 3
23 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 |
|---|---|---|---|---|---|
| 2023-11-03 | ATRC | Sell (S) | −1,248 | -$43.0K | EDGAR |
| 2023-07-28 | ATRC | Sell (S) | −3,417 | -$195.1K | EDGAR |
| 2023-07-26 | ATRC | Notice (144) | −3,417 | -$195.1K | EDGAR |
| 2023-07-03 | ATRC | Grant (A) | +557 | $21.2K | EDGAR |
| 2023-06-07 | ATRC | Sell (S) | −1,422 | -$66.9K | EDGAR |
| 2023-06-06 | ATRC | Notice (144) | −1,422 | -$66.9K | EDGAR |
| 2023-05-03 | ATRC | Sell (S) | −4,417 | -$198.0K | EDGAR |
| 2023-05-01 | ATRC | Notice (144) | −4,417 | -$198.0K | EDGAR |
| 2023-03-03 | ATRC | Mixed | +17,246 | -$267.6K | EDGAR |
| 2022-07-05 | ATRC | Grant (A) | +350 | $12.2K | 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.