JAMI K NACHTSHEIM
CIK 1223017 · last filed 2026-06-02
"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
$3.28M
Companies
7
Total Filings
55
Lifetime Open-Market Net
-$1.25M
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 |
|---|---|---|---|---|---|---|---|
| CERS | Director | 268,362 | $2.92 | $783.6K | $13.6K | 14 | 2026-06-02 |
| ISRG | Director | 6,902 | $361.80 | $2.50M | -$1.26M | 14 | 2026-04-30 |
| Telesis Bio Inc. (TBIO) Delisted | Director | 3,743 | $0.00 | $0 | $0 | 1 | 2024-05-03 |
| Telesis Bio Inc. (DNAY) Delisted | Director | 20,630 | $1.30 | $26.8K | $0 | 2 | 2022-06-13 |
| FEI CO (FEIC) Delisted | Director | 0 | — | — | $0 | 7 | 2016-09-21 |
| AFFYMETRIX INC (AFFX) Delisted | Director | 0 | — | — | $0 | 7 | 2016-04-01 |
| SOUTHWALL TECHNOLOGIES INC /DE/ (SWTX) Delisted | Director | 0 | $46.99 | $0 | $0 | 7 | 2011-11-25 |
Recent Filings · Page 2 of 6
55 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 |
|---|---|---|---|---|---|
| 2023-06-09 | CERS | Grant (A) | +40,000 | $200.0K | EDGAR |
| 2023-04-28 | ISRG | Mixed | +482 | $0 | EDGAR |
| 2022-06-13 | Telesis Bio Inc. (DNAY) Delisted | Grant (A) | +20,630 | $0 | EDGAR |
| 2022-06-03 | CERS | Grant (A) | +20,454 | $0 | EDGAR |
| 2022-04-29 | ISRG | Grant (A) | — | $0 | EDGAR |
| 2022-04-26 | ISRG | Exer (M) | +555 | $0 | EDGAR |
| 2022-03-08 | CERS | Exer (M) | +5,127 | $0 | EDGAR |
| 2021-09-07 | Telesis Bio Inc. (DNAY) Delisted | Grant (A) | — | $0 | EDGAR |
| 2021-06-03 | CERS | Mixed | +28,116 | $0 | EDGAR |
| 2021-04-26 | ISRG | Mixed | +255 | $0 | 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.