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The company

ZeroStack Corp.

ZSTK · Nasdaq

Health CareHealth Care DistributionNot moving yet

ZSTK stood above a rising 150-day average in 0 of the last 52 weekly readings. It is 18.6% below that average now. Health Care Distribution: 20% of its 10 stocks in an uptrend (−10 points in four weeks); Health Care: 28% (−6 points in four weeks).

SEC filings

Statistics

Rotation: Not moving yet
Weeks in an uptrend: out for 52
Industry in uptrend: 20% -10 in 4 wk
Insider buys, 12 months: $6.9M
Insider sales, 12 months: $15K
Officials’ trades on record: 0
Institutions holding: 11 (+2)

In the rotation

Each square a week: lit when it closed above a rising 150-day average. 0 of 52 weeks.

22 Apr – 21 Oct

Health Care Distribution: A minority of its stocks are in an uptrend and the share has fallen sharply over four weeks. Health Care: A minority of its stocks are in an uptrend and the share has been slipping.

Money in and out

1 Nov 2024 – 1 Oct 2026

Open-market buys above the line and sales below, in dollars.

Congress and officials

No member of Congress or official has disclosed a trade in it.

Insiders

Buy orders, 12 months1

Sale orders, 12 months1

Buyers · sellers1 · 1

Who	Did	Shares	Traded
Rudy RongPresident	sold	1,000at $7.57	19 Aug 2026filed 21 Aug 2026
Michael HeinrichExecutive Chairman	bought	4,608,575at $0.7549	20 Jul 2026filed 20 Jul 2026

Lines filed since 2 January 2026, newest first; every insider’s older lines are on their own page.

Institutions

Holders11+2 on the quarter

New · exited4 · 2

Reported value$184K

Quarter to 30 Jun 2026, against 31 Mar 2026; newest filing 31 Aug 2026.

Manager	Shares	Change
VANGUARD CAPITAL MANAGEMENT LLCunchanged · filed 13 Aug 2026	25,440$76K	00.0%
GEODE CAPITAL MANAGEMENT, LLCreduced · filed 12 Aug 2026	20,994$63K	-4,327−17.1%
VANGUARD FIDUCIARY TRUST COunchanged · filed 13 Aug 2026	12,648$38K	00.0%
Tower Research Capital LLC (TRC)new · filed 11 Aug 2026	1,730$5,190	+1,730
UBS Group AGreduced · filed 13 Aug 2026	440$1,320	-226−33.9%
MERCER GLOBAL ADVISORS INCnew · filed 11 Aug 2026	25$75	+25
OSAIC HOLDINGS, INC.unchanged · filed 14 Aug 2026	12$36	00.0%
MORGAN STANLEYreduced · filed 13 Aug 2026	7$21	-166−96.0%
BARCLAYS PLCnew · filed 14 Aug 2026	3$9	+3
CITIGROUP INCnew · filed 3 Aug 2026	1$3	+1

News

No headline names it lately.

Everyone who traded it

Rudy Rong President · last 19 Aug 20260 · 1

Daniel Reis-Faria CEO · last 20 Jul 20260 · 0

Dany Vaiman CFO · last 20 Jul 20260 · 0

Michael Heinrich Executive Chairman · last 20 Jul 20261 · 0

Edward Woo Director · last 5 May 20260 · 0

Laurence Zeifman Director · last 5 May 20260 · 0

Manfred Leventhal Director · last 5 May 20260 · 0

Michael John Brown Director · last 22 Oct 20250 · 0

Clifford Starke CEO · last 30 Jun 20253 · 0

Harold Wolkin Director · last 30 Jun 20251 · 0

Sammy Dorf Executive Chairman · last 15 Dec 20240 · 0

Kevin Taylor Chairman · last 15 Nov 20230 · 0

Same industry

CAH Cardinal HealthLeading+16%

HSIC Henry ScheinIn trend+4%

MCK McKessonAbove a falling average+21%

COR CencoraAbove a falling average+12%

HLF HerbalifeAbove a falling average+4%

COSM Cosmos HealthNot moving yet-1%

NUS Nu Skin EnterprisesNot moving yet-16%

MEDS DataMeds AINot moving yet-27%

Distance from each stock’s own 150-day average.

Government contracts

No federal award is tied to it.

From its SEC filings

Profit per saleFY 2025 · to 31 Dec 20254.6%

Operating profit marginFY 2025 · to 31 Dec 2025-433%

Free cash flow marginFY 2025 · to 31 Dec 2025-24.7%

Return on capital employedFY 2025 · to 31 Dec 2025-127%

Debt to equityFY 2025 · to 31 Dec 20250.80×

Interest coverFY 2025 · to 31 Dec 2025636.43×

Share count trendFY 2025 · to 23 Feb 2026132%

Cash and equivalentsFY 2025 · to 31 Dec 2025$5.6M

Free cash flowFY 2025 · to 31 Dec 2025−$8.8M

Analyst forecasts

No analyst forecasts yet.