Manheimer Mark

Director · Officer · NTST

As of 2026-09-16, Manheimer Mark has 73 Form 4 transactions on record across 1 company — 35 in the trailing 12 months.

Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.

Reconstructed holdings

Direct: $7.6MIndirect: $0$7.6Mas of 2026-09-16
  • Direct $7.6M
  • Indirect $0
NTSTdirect415,260 sh$7.6M

Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.

Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.

Trades by company

NTST · 73 trades
2026-06-18: Purchase, 5,000 sh ($96K)2026-03-08: Withheld for tax, 1,906 sh ($40K)2026-03-08: Option exercise, 4,842 sh ($0)2026-03-08: Option exercise, 4,842 sh2026-03-08: Option exercise, 4,842 sh2026-02-28: Withheld for tax, 11,033 sh ($229K)2026-02-28: Withheld for tax, 7,877 sh ($164K)2026-02-28: Withheld for tax, 5,978 sh ($124K)2026-02-28: Withheld for tax, 2,792 sh ($58K)2026-02-28: Award / grant, 20,017 sh ($0)2026-02-28: Option exercise, 15,190 sh ($0)2026-02-28: Option exercise, 7,093 sh ($0)2026-02-28: Award / grant, 28,036 sh ($0)2026-02-28: Option exercise, 15,190 sh2026-02-28: Option exercise, 7,093 sh2026-02-28: Option exercise, 15,190 sh2026-02-28: Option exercise, 7,093 sh2026-02-26: Withheld for tax, 10,780 sh ($222K)2026-02-26: Withheld for tax, 7,005 sh ($144K)2026-02-26: Option exercise, 27,394 sh ($0)2026-02-26: Option exercise, 17,801 sh ($0)2026-02-26: Option exercise, 17,801 sh2026-02-26: Option exercise, 27,394 sh2026-02-26: Option exercise, 17,801 sh2026-02-26: Option exercise, 27,394 sh2026-02-16: Withheld for tax, 9,250 sh ($187K)2026-02-16: Withheld for tax, 4,713 sh ($95K)2026-02-16: Option exercise, 23,081 sh ($0)2026-02-16: Option exercise, 11,762 sh ($0)2026-02-16: Option exercise, 11,762 sh2026-02-16: Option exercise, 23,081 sh2026-02-16: Option exercise, 23,081 sh2026-02-16: Option exercise, 11,762 sh2026-02-12: Award / grant, 84,211 sh ($0)2026-02-12: Award / grant, 41,223 sh ($0)2025-09-05: Purchase, 5,600 sh ($100K)2025-08-17: Withheld for tax, 2,405 sh ($45K)2025-08-17: Option exercise, 6,111 sh ($0)2025-08-17: Option exercise, 6,111 sh ($0)2025-03-11: Purchase, 2,500 sh ($37K)2025-03-10: Purchase, 2,500 sh ($38K)2025-03-10: Purchase, 1,500 sh ($23K)2025-03-10: Purchase, 1,250 sh ($19K)2025-03-10: Purchase, 1,134 sh ($17K)2025-03-08: Withheld for tax, 1,906 sh ($29K)2025-03-08: Option exercise, 4,842 sh ($0)2025-03-08: Option exercise, 4,842 sh ($0)2025-03-07: Purchase, 1,250 sh ($19K)2025-03-07: Purchase, 1,250 sh ($19K)2025-03-07: Purchase, 1,116 sh ($17K)2025-02-28: Withheld for tax, 5,829 sh ($87K)2025-02-28: Withheld for tax, 5,316 sh ($80K)2025-02-28: Withheld for tax, 3,186 sh ($48K)2025-02-28: Withheld for tax, 2,722 sh ($41K)2025-02-28: Option exercise, 13,852 sh ($0)2025-02-28: Option exercise, 7,092 sh ($0)2025-02-28: Option exercise, 8,300 sh ($0)2025-02-28: Option exercise, 7,092 sh ($0)2025-02-28: Option exercise, 15,189 sh ($0)2025-02-28: Option exercise, 8,300 sh ($0)2025-02-28: Option exercise, 13,852 sh ($0)2025-02-28: Option exercise, 15,189 sh ($0)2025-02-26: Award / grant, 53,410 sh ($0)2025-02-26: Award / grant, 82,192 sh ($0)2025-02-16: Withheld for tax, 9,301 sh ($129K)2025-02-16: Withheld for tax, 4,740 sh ($66K)2025-02-16: Option exercise, 11,762 sh ($0)2025-02-16: Option exercise, 23,081 sh ($0)2025-02-16: Option exercise, 11,762 sh ($0)2025-02-16: Option exercise, 23,081 sh ($0)2024-12-23: Withheld for tax, 12,258 sh ($174K)2024-12-23: Option exercise, 30,379 sh ($0)2024-12-23: Option exercise, 30,379 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-06-18NTSTPurchase5,000 @ $19.19$96K+1.2% of holding415,260Form 4
2025-09-05NTSTPurchase5,600 @ $17.93$100K+1.8% of holding316,378Form 4
2025-03-11NTSTPurchase2,500 @ $14.87$37K+0.8% of holding307,072Form 4
2025-03-10NTSTPurchase2,500 @ $15.37$38K+0.8% of holding303,072Form 4
2025-03-10NTSTPurchase1,500 @ $15.26$23K+0.5% of holding304,572Form 4
2025-03-10NTSTPurchase1,250 @ $15.35$19K+0.4% of holding299,438Form 4
2025-03-10NTSTPurchase1,134 @ $15.31$17K+0.4% of holding300,572Form 4
2025-03-07NTSTPurchase1,250 @ $15.18$19K+0.4% of holding294,002Form 4
2025-03-07NTSTPurchase1,250 @ $15.16$19K+0.4% of holding295,252Form 4
2025-03-07NTSTPurchase1,116 @ $15.34$17K+0.4% of holding292,752Form 4
63 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-03-08NTSTWithheld for tax1,906410,260Form 4
2026-03-08NTSTOption exercise4,842171,317Form 4
2026-03-08NTSTOption exercise4,842412,166Form 4
2026-03-08NTSTOption exercise4,842412,166Form 4
2026-02-28NTSTWithheld for tax11,033395,184Form 4
2026-02-28NTSTWithheld for tax7,877407,324Form 4
2026-02-28NTSTWithheld for tax5,978378,181Form 4
2026-02-28NTSTWithheld for tax2,792368,969Form 4
2026-02-28NTSTAward / grant20,017415,201Form 4
2026-02-28NTSTOption exercise15,190176,159Form 4
2026-02-28NTSTOption exercise7,093191,349Form 4
2026-02-28NTSTAward / grant28,036406,217Form 4
2026-02-28NTSTOption exercise15,190384,159Form 4
2026-02-28NTSTOption exercise7,093371,761Form 4
2026-02-28NTSTOption exercise15,190384,159Form 4
2026-02-28NTSTOption exercise7,093371,761Form 4
2026-02-26NTSTWithheld for tax10,780364,668Form 4
2026-02-26NTSTWithheld for tax7,005348,054Form 4
2026-02-26NTSTOption exercise27,394198,442Form 4
2026-02-26NTSTOption exercise17,801225,836Form 4
2026-02-26NTSTOption exercise17,801355,059Form 4
2026-02-26NTSTOption exercise27,394375,448Form 4
2026-02-26NTSTOption exercise17,801355,059Form 4
2026-02-26NTSTOption exercise27,394375,448Form 4
2026-02-16NTSTWithheld for tax9,250337,258Form 4
2026-02-16NTSTWithheld for tax4,713323,427Form 4
2026-02-16NTSTOption exercise23,081243,637Form 4
2026-02-16NTSTOption exercise11,762266,718Form 4
2026-02-16NTSTOption exercise11,762328,140Form 4
2026-02-16NTSTOption exercise23,081346,508Form 4
2026-02-16NTSTOption exercise23,081346,508Form 4
2026-02-16NTSTOption exercise11,762328,140Form 4
2026-02-12NTSTAward / grant84,21184,211Form 4
2026-02-12NTSTAward / grant41,223278,480Form 4
2025-08-17NTSTWithheld for tax2,405310,778Form 4
2025-08-17NTSTOption exercise6,1110Form 4
2025-08-17NTSTOption exercise6,111313,183Form 4
2025-03-08NTSTWithheld for tax1,906298,188Form 4
2025-03-08NTSTOption exercise4,8429,684Form 4
2025-03-08NTSTOption exercise4,842300,094Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.