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AB INVESTOR

CIK 889232 · last filed 2026-02-13

AB INVESTOR is a corporate insider who has filed 29 SEC Form 4 insider transactions across 7 companies since 2007. The most recent filing shows the insider bought $15.8M of NDAQ on Feb 13, 2026. Across all open-market trades the lifetime net is +$81.5M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $5.69B across reported positions.

"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.

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Disclosed Exposure

$5.69B

Companies

7

Total Filings

29

Lifetime Open-Market Net

$81.51M

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
NDAQ 10%+ Owner 58,382,426 $97.54 $5.69B $92.85M 8 2026-02-13
GREENWAY MEDICAL TECHNOLOGIES INC (GWAY) Delisted 10%+ Owner 0 — — $0 2 2013-11-05
Mattersight Corp (MATR) Delisted 0 — — $0 1 2012-05-10
TANGOE INC (TNGO) Delisted 2,760,943 — — -$1.23M 1 2011-08-02
ACHILLION PHARMACEUTICALS INC (ACHN) Delisted 10%+ Owner 3,804,224 — — -$8.10M 2 2009-12-30
ACHILLION PHARMACEUTICALS INC (TPTX) Delisted 10%+ Owner 288,807 $76.01 $21.95M $1.37M 4 2008-12-22
ISTA PHARMACEUTICALS INC (ISTA) Delisted 10%+ Owner 1,860,874 — — -$3.39M 11 2007-06-19

Recent Filings

29 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
2026-02-13 NDAQ Buy (P) +200,000 $15.84M EDGAR
2013-11-05 GREENWAY MEDICAL TECHNOLOGIES INC (GWAY) Delisted U −7,031,440 -$143.09M EDGAR
2012-05-25 NDAQ Buy (P) +200,000 $4.34M EDGAR
2012-05-23 NDAQ Buy (P) +600,000 $14.12M EDGAR
2012-05-23 NDAQ Buy (P) +80,000 $1.75M EDGAR
2012-05-16 NDAQ Buy (P) +600,000 $14.12M EDGAR
2012-05-10 Mattersight Corp (MATR) Delisted — — $0 EDGAR
2012-02-09 GREENWAY MEDICAL TECHNOLOGIES INC (GWAY) Delisted Conv (C) +5,266,734 $0 EDGAR
2011-08-11 NDAQ Buy (P) +700,000 $14.96M EDGAR
2011-08-09 NDAQ Buy (P) +400,000 $9.10M EDGAR
Showing 1–10 of 29
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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.