ALTA BIOPHARMA PARTNERS III LP

CIK 1257444 · last filed 2013-10-18

ALTA BIOPHARMA PARTNERS III LP is a corporate insider who has filed 3 SEC Form 4 insider transactions across 2 companies since 2009. The most recent filing, for MGNX, was dated Oct 18, 2013. Across all open-market trades the lifetime net is −$31.4M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $7.4M 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.

Disclosed Exposure

$7.45M

Companies

2

Total Filings

3

Lifetime Open-Market Net

-$31.40M

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
MGNX	10%+ Owner	2,013,509	$3.70	$7.45M	$0	1	2013-10-18
Viracta Therapeutics, Inc. (SNSS) Delisted	10%+ Owner	0	$18.62	$0	-$31.40M	2	2009-12-16

Recent Filings

3 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
2013-10-18	MGNX	Mixed	+6,040,527	$0	EDGAR
2009-12-16	Viracta Therapeutics, Inc. (SNSS) Delisted	Sell (S)	−15,627,248	-$31.40M	EDGAR
2009-11-03	Viracta Therapeutics, Inc. (SNSS) Delisted	Buy (P)	—	$0	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.