Maria R. Hawthorne is Director at PS BUSINESS PARKS, INC./MD (PSB). They have made 10 open-market trades across 2 companies since 2008, most recently 2026-05-12.
CIK 0001227459
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.
1 open-market purchase totalling $100K since 2026, against 9 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| PSB | 55,234 | $10.4M |
| ESS | 3,711 | $1.0M |
| EFOR | 15,388 | $590K |
| ASGN | 10,252 | $199K |
| Total | $12.1M |
Shares reported on the most recent Form 4, priced at the 2026-05-14 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| EFOR | BUY | 2026-04-24 | 2026-04-27 | $19.49 | $100K | -4.6% | -8.1% | -1.5% |
| PSB | SELL | 2021-11-16 | 2021-11-17 | $176.57 | $2.6M | -1.4% | +0.3% | -10.4% |
| PSB | SELL | 2018-11-30 | 2018-12-03 | $140.96 | $1.4M | -1.7% | -10.3% | +5.4% |
| PSB | SELL | 2015-09-08 | 2015-09-10 | $74.02 | $1.7M | -2.7% | -1.5% | -1.5% |
| PSB | SELL | 2013-03-15 | 2013-03-18 | $76.05 | $608K | -2.7% | -1.5% | -1.5% |
| PSB | SELL | 2012-12-14 | 2012-12-18 | $63.66 | $477K | -2.7% | -1.5% | -1.5% |
| PSB | SELL | 2012-09-14 | 2012-09-18 | $70.66 | $848K | -2.7% | -1.5% | -1.5% |
| PSB | SELL | 2010-03-26 | 2010-03-30 | $54.23 | $407K | -2.7% | -1.5% | -1.5% |
| PSB | SELL | 2010-03-05 | 2010-03-08 | $50.63 | $1.2M | -2.7% | -1.5% | -1.5% |
| PSB | SELL | 2008-08-15 | 2008-08-18 | $56.30 | $582K | -2.7% | -1.5% | -1.5% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.