William S. Singer

CIK 1617927 · last filed 2026-05-19

"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

$70.8K

Companies

3

Total Filings

21

Lifetime Open-Market Net

-$31.6K

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
TAOX	Director	19,566	$3.62	$70.8K	$0	4	2026-05-19
TAO Synergies Inc. (SNPX) Delisted	Director	33,000	$24.55	$810.1K	-$31.6K	9	2025-04-07
NTRP	Director	—	$2.16	—	$0	6	2020-12-03

Recent Filings · Page 3 of 3

21 filings

Form 4 transactions across all companies, newest first.

Filed	Symbol	Action	Net Shares	Net $	Link
2016-11-23	—	Grant (A)	—	$0

Showing 21–21 of 21

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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.