JAMES A JOHNSON
CIK 1225501 · Chief Financial Officer · last filed 2026-06-24
"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
$0
Companies
4
Total Filings
33
Lifetime Open-Market Net
-$538.7K
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 |
|---|---|---|---|---|---|---|---|
| LONA | Director | — | $8.17 | — | $0 | 2 | 2026-06-24 |
| LeonaBio, Inc. (ATHA) Delisted | Director | 5,000 | $6.92 | $34.6K | $12.0K | 6 | 2025-06-03 |
| NanoString Technologies Inc (NSTG) Delisted | Chief Financial Officer | 8,548 | $0.11 | $900 | -$225.7K | 13 | 2017-09-05 |
| ZYMOGENETICS INC (ZGEN) Delisted | Executive VP and CFO | 0 | $12.01 | $0 | -$325.0K | 12 | 2010-10-12 |
Recent Filings · Page 2 of 4
33 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 |
|---|---|---|---|---|---|
| 2017-02-08 | NanoString Technologies Inc (NSTG) Delisted | Mixed | +2,244 | -$20.5K | EDGAR |
| 2016-11-14 | NanoString Technologies Inc (NSTG) Delisted | Mixed | — | -$174.5K | EDGAR |
| 2016-09-06 | NanoString Technologies Inc (NSTG) Delisted | Grant (A) | +620 | $7.5K | EDGAR |
| 2016-03-03 | NanoString Technologies Inc (NSTG) Delisted | Grant (A) | +760 | $7.2K | EDGAR |
| 2016-02-05 | NanoString Technologies Inc (NSTG) Delisted | Grant (A) | — | $0 | EDGAR |
| 2015-09-03 | NanoString Technologies Inc (NSTG) Delisted | Grant (A) | +761 | $7.2K | EDGAR |
| 2015-03-04 | NanoString Technologies Inc (NSTG) Delisted | Grant (A) | +789 | $7.5K | EDGAR |
| 2015-02-11 | NanoString Technologies Inc (NSTG) Delisted | Grant (A) | — | $0 | EDGAR |
| 2014-09-04 | NanoString Technologies Inc (NSTG) Delisted | Grant (A) | +1,063 | $7.0K | EDGAR |
| 2014-03-05 | NanoString Technologies Inc (NSTG) Delisted | Grant (A) | +1,096 | $7.3K | 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.