Brian Achenbach

CIK 1760132 · SVP, Fin. & Corp. Controller · last filed 2021-12-16

Brian Achenbach is a SVP, Fin. & Corp. Controller who has filed 7 SEC Form 4 insider transactions across 1 company since 2018. The most recent filing, for MBIO, was dated Dec 16, 2021. Across all open-market trades the lifetime net is −$73.9K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $126 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

$126

Companies

1

Total Filings

7

Lifetime Open-Market Net

-$73.9K

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
MBIO	SVP, Fin. & Corp. Controller	199	$0.63	$126	-$73.9K	7	2021-12-16

Recent Filings

7 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
2021-12-16	MBIO	Mixed	+18,126	-$8.0K	EDGAR
2021-10-21	MBIO	Sell (S)	−4,450	-$10.1K	EDGAR
2021-04-16	MBIO	Sell (S)	−20,721	-$66.3K	EDGAR
2021-03-15	MBIO	Grant (A)	+22,500	$0	EDGAR
2020-04-29	MBIO	Grant (A)	+36,774	$1.3K	EDGAR
2020-01-17	MBIO	Grant (A)	+35,000	$0	EDGAR
2018-12-03	MBIO	Mixed	+57,500	$10.5K	EDGAR

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.