William A. Backus

CIK 1530884 · VP & Chief Accounting Officer · last filed 2026-02-13

William A. Backus is a VP & Chief Accounting Officer who has filed 45 SEC Form 4 insider transactions across 1 company since 2011. The most recent filing, for BCPC, was dated Feb 13, 2026. Across all open-market trades the lifetime net is −$13.9M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $1.3M across reported positions.

"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.

Disclosed Exposure

$1.26M

Companies

1

Total Filings

45

Lifetime Open-Market Net

-$13.87M

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
BCPC	VP & Chief Accounting Officer	7,089	$178.44	$1.26M	-$13.87M	41	2026-02-13

Recent Filings

45 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
2026-02-13	BCPC	Mixed	+1,219	-$167.0K	EDGAR
2026-02-10	BCPC	Tax (F)	−322	-$55.8K	EDGAR
2026-02-10	BCPC	Tax (F)	−383	-$64.1K	EDGAR
2025-04-11	BCPC	Mixed	+1,544	-$175.0K	EDGAR
2025-02-14	BCPC	Mixed	+1,544	-$175.0K	EDGAR
2025-02-12	BCPC	Tax (F)	−310	-$49.4K	EDGAR
2024-08-01	BCPC	Mixed	−904	-$531.6K	EDGAR
2024-07-30	BCPC	Notice (144)	−3,900	-$699.5K	EDGAR
2024-02-27	BCPC	Mixed	−7,000	-$1.78M	EDGAR
2024-02-26	BCPC	Notice (144)	−7,000	-$1.09M	EDGAR

Showing 1–10 of 45

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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.