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JAMES A JOHNSON

CIK 1225501 · Chief Financial Officer · last filed 2026-06-24

JAMES A JOHNSON is a Chief Financial Officer who has filed 33 SEC Form 4 insider transactions across 4 companies since 2007. The most recent filing, for LONA, was dated Jun 24, 2026. Across all open-market trades the lifetime net is −$538.7K, making them a net seller over the disclosed history.

"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

33 filings
Insider 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
2026-06-24 LONA Grant (A) — $0 EDGAR
2026-04-13 LONA Grant (A) — $0 EDGAR
2025-06-03 LeonaBio, Inc. (ATHA) Delisted Grant (A) — $0 EDGAR
2024-05-24 LeonaBio, Inc. (ATHA) Delisted Grant (A) — $0 EDGAR
2023-05-22 LeonaBio, Inc. (ATHA) Delisted Grant (A) — $0 EDGAR
2023-03-30 LeonaBio, Inc. (ATHA) Delisted Buy (P) +5,000 $12.0K EDGAR
2022-05-27 LeonaBio, Inc. (ATHA) Delisted Grant (A) — $0 EDGAR
2021-06-01 LeonaBio, Inc. (ATHA) Delisted Grant (A) — $0 EDGAR
2017-09-05 NanoString Technologies Inc (NSTG) Delisted Grant (A) +594 $7.8K EDGAR
2017-03-03 NanoString Technologies Inc (NSTG) Delisted Grant (A) +621 $7.5K EDGAR
Showing 1–10 of 33
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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.