Alexander M Knaster

CIK 1308574 · last filed 2022-11-23

Alexander M Knaster is a corporate insider who has filed 8 SEC Form 4 insider transactions across 3 companies since 2007. The most recent filing shows the insider sold $513.9M of PRVA on Nov 23, 2022. Across all open-market trades the lifetime net is −$512.6M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $813.6M 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

$813.58M

Companies

3

Total Filings

8

Lifetime Open-Market Net

-$512.58M

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
PRVA	10%+ Owner	17,741,723	$25.57	$453.66M	-$513.94M	2	2022-11-23
SWIM	Director	51,845,685	$6.41	$332.33M	$0	1	2022-01-12
NBR	Director	334,000	$82.61	$27.59M	$1.36M	5	2008-11-14

Recent Filings

8 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
2022-11-23	PRVA	Sell (S)	−22,780,850	-$513.94M	EDGAR
2022-04-06	PRVA	Other (J)	—	$0	EDGAR
2022-01-12	SWIM	Disp (D)	−77,047,168	-$1.44B	EDGAR
2008-11-14	NBR	Buy (P)	+60,000	$807.0K	EDGAR
2008-11-14	NBR	Disp (D)	−25,000	$0	EDGAR
2008-10-31	NBR	Buy (P)	+40,000	$551.5K	EDGAR
2008-02-26	NBR	Grant (A)	+12,000	$0	EDGAR
2007-02-26	NBR	Grant (A)	+12,000	$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.