Kristen M Oelschlager
CIK 1856565 · Chief Operating Officer · last filed 2026-08-05
"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
$3.38M
Companies
1
Total Filings
34
Lifetime Open-Market Net
-$4.57M
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 |
|---|---|---|---|---|---|---|---|
| CSTL | Chief Operating Officer | 110,539 | $30.55 | $3.38M | -$4.57M | 28 | 2026-08-05 |
Recent Filings · Page 3 of 4
34 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 |
|---|---|---|---|---|---|
| 2024-09-05 | CSTL | Sell (S) | −5,832 | -$170.3K | EDGAR |
| 2024-08-13 | CSTL | Mixed | +7,837 | -$75.2K | EDGAR |
| 2024-08-05 | CSTL | Sell (S) | −12,989 | -$299.5K | EDGAR |
| 2024-07-31 | CSTL | Sell (S) | −2,793 | -$61.6K | EDGAR |
| 2024-07-03 | CSTL | Sell (S) | −2,793 | -$59.3K | EDGAR |
| 2024-07-01 | CSTL | Notice (144) | −24,407 | -$531.3K | EDGAR |
| 2024-03-06 | CSTL | Grant (A) | — | $0 | EDGAR |
| 2024-01-03 | CSTL | Exer (M) | +12,615 | $38.0K | EDGAR |
| 2023-12-12 | CSTL | Mixed | +17,587 | -$126.9K | EDGAR |
| 2022-12-30 | CSTL | Exer (M) | +7,178 | $17.2K | 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.