Dennis M Fenton
CIK 1184627 · Executive V.P., Operations · last filed 2026-06-17
"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.
AMGN 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
SUITE 200
SAN DIEGO, CA 92121
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| TRAX | Director | 10,995 | $45.87 | $504.3K | $0 | 4 | 2026-06-17 |
| ANAB | Director | 4,965 | $49.49 | $245.7K | -$117.5K | 13 | 2026-01-08 |
| PORTOLA PHARMACEUTICALS INC (PTLA) Delisted | Director | 0 | — | — | $0 | 7 | 2020-07-02 |
| Sienna Biopharmaceuticals, Inc. (SNNA) Delisted | Director | 1,250 | — | — | $28.7K | 3 | 2019-06-03 |
| Pfenex Inc. (PFNX) Delisted | Director | — | — | — | $0 | 3 | 2017-05-08 |
| XENOPORT INC (XNPT) Delisted | Director | 0 | — | — | $10.3K | 9 | 2016-07-06 |
| KYTHERA BIOPHARMACEUTICALS INC (KYTH) Delisted | Director | 1,476 | — | — | $0 | 5 | 2015-10-02 |
| HOSPIRA INC (HSP) Delisted | Director | 0 | — | — | $0 | 5 | 2015-09-03 |
| GENZ | Director | 2,375 | $37.11 | $88.1K | $0 | 2 | 2011-04-06 |
| AMGN | Executive V.P., Operations | 134,186 | $447.01 | $59.98M | -$858.9K | 5 | 2007-06-05 |
Recent Filings · Page 6 of 6
60 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2011-04-06 | GENZ | Mixed | −355 | -$202.0K | EDGAR |
| 2010-11-12 | XENOPORT INC (XNPT) Delisted | Buy (P) | +1,300 | $10.3K | EDGAR |
| 2010-06-18 | GENZ | Grant (A) | — | $0 | EDGAR |
| 2010-05-12 | XENOPORT INC (XNPT) Delisted | Grant (A) | — | $0 | EDGAR |
| 2009-08-14 | XENOPORT INC (XNPT) Delisted | Grant (A) | — | $0 | EDGAR |
| 2007-06-05 | AMGN | Mixed | −5,143 | -$475.3K | EDGAR |
| 2007-05-15 | AMGN | Mixed | −28,032 | -$1.52M | EDGAR |
| 2007-05-09 | AMGN | Grant (A) | +62,698 | $0 | EDGAR |
| 2007-04-30 | AMGN | Grant (A) | — | $0 | EDGAR |
| 2007-03-12 | AMGN | Gift (G) | −1,322 | $0 | 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.