Home

Mark Manheimer

CIK 1549229 · President, CEO and Secretary · last filed 2026-06-22

Mark Manheimer is a President, CEO and Secretary who has filed 50 SEC Form 4 insider transactions across 2 companies since 2012. The most recent filing shows the insider bought $96.0K of NTST on Jun 22, 2026. Across all open-market trades the lifetime net is +$508.8K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $8.3M across reported positions. 12 SEC filings were submitted jointly with SPIRIT REALTY CAPITAL, INC.

"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.

Loading insider history…
Disclosed Exposure

$8.34M

Companies

2

Total Filings

50

Lifetime Open-Market Net

$508.8K

Filer Profile

Reported Address
14631 NORTH SCOTTSDALE RD, SUITE 200
SCOTTSDALE, AZ 85254
Related Filers
SPIRIT REALTY CAPITAL, INC. — 12 joint filings, latest 2016-03-08
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

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
NTST President, CEO and Secretary 415,260 $20.09 $8.34M $508.8K 36 2026-06-22
SPIRIT REALTY CAPITAL, INC. (SRC) Delisted Senior Vice President 11,950 $42.31 $505.6K $0 3 2013-07-19

Recent Filings

50 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
2026-06-22 NTST Buy (P) +5,000 $96.0K EDGAR
2026-03-10 NTST Mixed +2,936 -$39.9K EDGAR
2026-03-03 NTST Mixed +42,656 -$574.9K EDGAR
2026-03-02 NTST Mixed +27,410 -$366.5K EDGAR
2026-02-18 NTST Mixed +20,880 -$282.1K EDGAR
2026-02-17 NTST Grant (A) — $0 EDGAR
2025-09-08 NTST Buy (P) +5,600 $100.4K EDGAR
2025-08-18 NTST Mixed +3,706 -$45.2K EDGAR
2025-03-13 NTST Buy (P) +2,500 $37.2K EDGAR
2025-03-12 NTST Buy (P) +6,384 $97.9K EDGAR
Showing 1–10 of 50
Page 1 of 5
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.