Home

William A. Schromm

CIK 1363806 · EVP & Chief Operating Officer · last filed 2020-11-17

William A. Schromm is an EVP & Chief Operating Officer who has filed 86 SEC Form 4 insider transactions across 3 companies since 2007. The most recent filing shows the insider sold $2.9M of ON on Nov 17, 2020. Across all open-market trades the lifetime net is −$13.8M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $36.4M across reported positions. 5 SEC filings were submitted jointly with II-VI INC.

"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.

Loading insider history…
Disclosed Exposure

$36.37M

Companies

3

Total Filings

86

Lifetime Open-Market Net

-$13.82M

Filer Profile

Reported Address
ON SEMICONDUCTOR (M/D A700)
5005 EAST MCDOWELL ROAD
PHOENIX, AZ 85008
Related Filers
II-VI INC — 5 joint filings, latest 2018-08-30
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

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
ON EVP & Chief Operating Officer 489,025 $74.38 $36.37M -$10.33M 35 2020-11-17
COHERENT CORP. (IIVI) Delisted Director 12,069 $227.08 $2.74M $0 4 2018-08-30
ON SEMICONDUCTOR CORP (ONNN) Delisted EVP & Chief Operating Officer 414,605 — — -$3.50M 47 2015-03-27

Recent Filings

86 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
2020-11-17 ON Sell (S) −104,462 -$2.92M EDGAR
2020-10-13 ON Sell (S) −95,285 -$2.47M EDGAR
2020-03-10 ON Tax (F) −31,049 -$536.5K EDGAR
2020-03-06 ON Tax (F) −8,849 -$161.8K EDGAR
2020-03-04 ON Grant (A) +51,770 $0 EDGAR
2020-01-16 ON Sell (S) −9,513 -$242.6K EDGAR
2020-01-06 ON Sell (S) −10,000 -$250.0K EDGAR
2019-12-23 ON Sell (S) −10,000 -$240.0K EDGAR
2019-12-16 ON Sell (S) −10,000 -$230.0K EDGAR
2019-11-07 ON Sell (S) −10,000 -$220.1K EDGAR
Showing 1–10 of 86
Page 1 of 9
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.