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Delisting risk

CAPS · NASDAQ · Construction Materials

Capstone (CAPS)

Distributes stone and masonry products through a dealer portal and regional delivery network.

$0.1870

Pre-market−0.00 (−1.73%)

At close$0.1903(+2.86%)

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Breakdown13F · 13D/G · Form 4

	Insiders8 holders · as of Aug 11, 2026	45.99%	9.46M shares
	Otherremainder	54.01%	11.11M shares

20.58M company shares as of Sep 3, 2026 · holders as of their latest filing

Two share counts disagree (20.58M in the company's Sep 3, 2026 report, 15.20M elsewhere); stakes use the report.

Top shareholders13F · 13D/G · Form 4

Holder	Stake	Shares	Evidence
Matthew E. LipmanInsiderdirector, 10 percent owner, officer: Chief Executive Officer	20.13%	4.14M	Form 4filed Aug 11, 2026 ↗
Michael ToporekInsiderdirector	7.85%	1.61M	Form 4filed Aug 11, 2026 ↗
Gordon Lewis Jr StroutInsiderdirector	6.63%	1.36M	Form 4filed Aug 11, 2026 ↗
Kevin Allan GrotkeInsiderofficer: President & CEO of TotalStone	5.06%	1.04M	Form 4filed Aug 11, 2026 ↗
Edward Christopher SchultzInsiderofficer: Chief Financial Officer	2.43%	500,310	Form 4filed Aug 11, 2026 ↗
John M. Iii HollimanInsiderdirector	1.95%	401,343	Form 4filed Aug 11, 2026 ↗
Fredric J. FeldmanInsiderdirector	0.97%	200,124	Form 4filed Aug 11, 2026 ↗
Elwood D. HowseInsiderdirector	0.97%	200,124	Form 4filed Aug 11, 2026 ↗
3i, LPInstitution	—9.90% of class, as filed	—	13Gfiled Apr 23, 2026 ↗
BVF Partners L P/IL¹Strategicother: See Explanation of Responses	0.01%	2,268	Form 4filed Jul 18, 2017 ↗
Neil S. Subin²Insider10 percent owner	0.00%	727	Form 4filed Dec 28, 2018 ↗
Lloyd I. Iii Miller³Insider10 percent owner	0.00%	624	Form 4filed Oct 10, 2017 ↗
Alimco Financial Corp⁴Strategicother: See Remarks	0.00%	103	Form 4filed Feb 4, 2019 ↗
Leslie M. Taeger⁵Insiderofficer: SVP Chief Financial Officer	0.00%	95	Form 4filed Jan 6, 2017 ↗

Last filed Jul 18, 2017; leaving the company requires no filing. Not in the bar.
Last filed Dec 28, 2018; leaving the company requires no filing. Not in the bar.
Last filed Oct 10, 2017; leaving the company requires no filing. Not in the bar.
Last filed Feb 4, 2019; leaving the company requires no filing. Not in the bar.
Last filed Jan 6, 2017; leaving the company requires no filing. Not in the bar.

13D/13G — an ownership statement filed at 5% or more · Form 4 — an insider's transaction report

Institutions13F

No 13F holders on record.

Ownership statements13D/G · 5% or more, as filed

Holder	% of class	Shares	Form	Filed
3i, LPincl. 3i Management LLC, Maier Joshua Tarlow +1 more	9.90%	1.27M	13G	Apr 23, 2026 ↗

Insider tradesForm 4

Latest trades

Date	Insider	Type	Shares	Avg price	Owned after
Mar 7, 2025	Gordon Lewis Jr Stroutdirector	Purchase	41,500	$4.00	41,500
Mar 7, 2025	Michael Toporekdirector	Purchase	41,750	$4.00	41,750
Mar 7, 2025	Matthew E. Lipmandirector, 10 percent owner, officer: Chief Executive Officer	Purchase	41,750	$4.00	2,570,412

CongressHouse and Senate disclosures

Not reported.