JAMES A JOHNSON

CIK 1225501 · Chief Financial Officer · last filed 2026-04-13

"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

32

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 $8.35 $0 1 2026-04-13
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

32 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
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
2014-02-04 NanoString Technologies Inc (NSTG) Delisted Grant (A) $0 EDGAR
Showing 1120 of 32
Page 2 of 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.