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 $5.61B across reported positions. 9 SEC filings were submitted jointly with ABB LTD.
"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.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
NDAQ price and trades
Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.
Shares held
Shares owned after each reported transaction on this company (direct holdings as reported).
Open-market buying and selling
by monthDollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.
Exposure by company
latestMost recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.
Filer Profile
SE-103 32
STOCKHOLM 103 32
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| NDAQ | 10%+ Owner | 58,382,426 | $96.12 | $5.61B | $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| 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 |
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.