John W JR Kosiba

CIK 1703463 · SVP, CFO & Treasurer · last filed 2026-06-11

"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

$13.67M

Companies

2

Total Filings

51

Lifetime Open-Market Net

-$12.61M

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
AMSC SVP, CFO & Treasurer 334,748 $40.02 $13.40M -$12.47M 35 2026-06-11
NNDM SVP, CFO & Treasurer 183,293 $1.49 $273.1K -$145.6K 16 2019-07-30

Recent Filings · Page 4 of 6

51 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2020-06-04 AMSC Mixed −29,324 -$42.1K EDGAR
2020-05-26 AMSC Grant (A) +116,667 $0 EDGAR
2019-12-23 AMSC Sell (S) −10,287 -$78.5K EDGAR
2019-11-07 AMSC Disp (D) −7,375 $0 EDGAR
2019-11-04 AMSC Mixed +38,122 -$59.6K EDGAR
2019-07-30 NNDM Tax (F) −5,307 -$46.8K EDGAR
2019-07-02 NNDM Tax (F) −6,529 -$60.6K EDGAR
2019-05-14 NNDM Tax (F) −2,365 -$26.2K EDGAR
2019-01-02 NNDM Sell (S) −12,374 -$127.6K EDGAR
2018-12-11 NNDM Sell (S) −6,250 -$66.1K EDGAR
Showing 3140 of 51
Page 4 of 6
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.