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William Hartzel

CIK 1989644 · SVP, Bioservices · last filed 2026-06-10

William Hartzel is a SVP, Bioservices who has filed 18 SEC Form 4 insider transactions across 1 company since 2023. The most recent filing shows the insider had shares withheld for taxes covering $13.9K of EBS on Jun 10, 2026. Current disclosed insider exposure totals $1.4M 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.

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Disclosed Exposure

$1.36M

Companies

1

Total Filings

18

Lifetime Open-Market Net

$0

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
EBS SVP, Bioservices 185,558 $7.31 $1.36M $0 18 2026-06-10

Recent Filings

18 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
2026-06-10 EBS Tax (F) −1,741 -$13.9K EDGAR
2026-05-01 EBS Grant (A) +100,111 $0 EDGAR
2026-03-05 EBS Mixed −9,493 -$80.1K EDGAR
2026-02-10 EBS Mixed −6,401 -$69.9K EDGAR
2025-11-13 EBS Tax (F) −610 -$6.6K EDGAR
2025-07-15 EBS Tax (F) −4,263 -$31.4K EDGAR
2025-06-10 EBS Tax (F) −1,167 -$7.7K EDGAR
2025-04-09 EBS Grant (A) +62,500 $0 EDGAR
2025-04-09 EBS Tax (F) −561 -$2.5K EDGAR
2025-03-10 EBS Grant (A) +62,500 $0 EDGAR
Showing 1–10 of 18
Page 1 of 2
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.