Madhu Ranganathan is CFO at Rackable Systems, Inc. (RACK). They have made 4 open-market trades across 1 company since 2020, most recently 2026-05-28.
CIK 0001346240
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 4 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| AKAM | 9,160 | $787K |
| TNET | 6,805 | $455K |
| SREV | 149,900 | $225K |
| RACK | 27,955 | — |
| Total | $1.5M |
Shares reported on the most recent Form 4, priced at the 2026-06-01 close. 1 holding could not be priced and is excluded from the total.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.