MARTIN P SLARK
CIK 1012930 · Vice Chairman and C.E.O. · last filed 2026-04-23
"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
$12.74M
Companies
6
Total Filings
115
Lifetime Open-Market Net
-$11.21M
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 |
|---|---|---|---|---|---|---|---|
| NTRSO | Director | 26,115 | $18.56 | $484.7K | $0 | 33 | 2026-04-23 |
| HUBG | Director | 243,050 | $46.38 | $11.27M | -$818.0K | 26 | 2026-01-07 |
| NORTHERN TRUST CORP (NTRSP) Delisted | Director | 14,810 | — | — | $0 | 5 | 2019-10-02 |
| NORTHERN TRUST CORP (NTRS.P) Delisted | Director | 11,379 | — | — | $0 | 2 | 2016-04-20 |
| MOLEX INC (MOLX) Delisted | Vice Chairman and C.E.O. | 626,821 | — | — | -$10.40M | 43 | 2013-10-07 |
| NTRS | Director | 5,641 | $174.34 | $983.6K | $0 | 5 | 2013-04-30 |
Recent Filings · Page 8 of 12
115 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2012-04-19 | NTRS | Grant (A) | +1,920 | $0 | EDGAR |
| 2012-04-19 | NTRS | Grant (A) | +1,920 | $0 | EDGAR |
| 2012-01-04 | HUBG | Mixed | +3,599 | -$45.4K | EDGAR |
| 2011-11-02 | MOLEX INC (MOLX) Delisted | Sell (S) | −25,000 | -$517.5K | EDGAR |
| 2011-10-05 | MOLEX INC (MOLX) Delisted | Mixed | +268,912 | -$492.7K | EDGAR |
| 2011-08-17 | MOLEX INC (MOLX) Delisted | Mixed | +21,956 | $395.6K | EDGAR |
| 2011-08-10 | MOLEX INC (MOLX) Delisted | Mixed | +47,372 | -$530.9K | EDGAR |
| 2011-08-02 | HUBG | Mixed | +14,400 | -$304.7K | EDGAR |
| 2011-05-11 | MOLEX INC (MOLX) Delisted | Mixed | −25,000 | -$652.3K | EDGAR |
| 2011-04-21 | NTRS | Grant (A) | +1,849 | $0 | EDGAR |
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.