STARBOARD VALUE & OPPORTUNITY MASTER FUND LTD
CIK 1373638 · last filed 2023-03-03
STARBOARD VALUE & OPPORTUNITY MASTER FUND LTD is a corporate insider who has filed 26 SEC Form 4 insider transactions across 9 companies since 2007. The most recent filing, for ACTG, was dated Mar 3, 2023. Across all open-market trades the lifetime net is −$56.9M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $165.8M across reported positions. The firm reports its address in New York, NY. 251 SEC filings were submitted jointly with RCG STARBOARD ADVISORS, LLC.
"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.
KNSY 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
NEW YORK, NY 10017
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| ACTG | 10%+ Owner | 2,000,000 | $4.17 | $8.34M | $0 | 1 | 2023-03-03 |
| WPP | 10%+ Owner | 955,976 | $26.66 | $25.49M | $33.38M | 2 | 2012-09-06 |
| IMMR | 10%+ Owner | 1,956,137 | $7.08 | $13.85M | $0 | 1 | 2010-05-04 |
| CPI CORP (CPY) Delisted | 10%+ Owner | 293,562 | — | — | -$38.35M | 8 | 2010-01-20 |
| PHOENIX TECHNOLOGIES LTD (PTEC) Delisted | 10%+ Owner | 1,899,484 | $39.56 | $75.14M | $10.71M | 4 | 2009-12-02 |
| AGYS | 10%+ Owner | 1,052,615 | $112.23 | $118.13M | -$4.47M | 3 | 2009-10-14 |
| TOLLGRADE COMMUNICATIONS INC \PA\ (TLGD) Delisted | 10%+ Owner | 794,514 | — | — | $894.6K | 3 | 2009-10-05 |
| KENSEY NASH CORP (KNSY) Delisted | Director | 173,225 | — | — | -$55.36M | 3 | 2009-01-15 |
| S1 CORP /DE/ (SONE) Delisted | 10%+ Owner | 32,536 | — | — | -$3.68M | 1 | 2008-09-15 |
Recent Filings
26 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2023-03-03 | ACTG | Mixed | +150,000,000 | $787.50M | EDGAR |
| 2012-09-06 | WPP | Buy (P) | +744,057 | $6.55M | EDGAR |
| 2012-08-20 | WPP | Buy (P) | +3,150,000 | $26.83M | EDGAR |
| 2010-05-04 | IMMR | — | — | $0 | EDGAR |
| 2010-01-20 | CPI CORP (CPY) Delisted | Sell (S) | −2,211,648 | -$29.01M | EDGAR |
| 2010-01-04 | CPI CORP (CPY) Delisted | Sell (S) | −65,800 | -$791.3K | EDGAR |
| 2009-12-17 | CPI CORP (CPY) Delisted | Sell (S) | −29,400 | -$357.5K | EDGAR |
| 2009-12-02 | PHOENIX TECHNOLOGIES LTD (PTEC) Delisted | Buy (P) | +223,938 | $592.5K | EDGAR |
| 2009-11-19 | PHOENIX TECHNOLOGIES LTD (PTEC) Delisted | Buy (P) | +233,784 | $640.8K | EDGAR |
| 2009-11-16 | CPI CORP (CPY) Delisted | Sell (S) | −10,496 | -$127.1K | 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.