Yasunori Kaneko
CIK 1277503 · last filed 2026-06-12
Yasunori Kaneko is a corporate insider who has filed 19 SEC Form 4 insider transactions across 8 companies since 2009. The most recent filing, for RCUS, was dated Jun 12, 2026. Across all open-market trades the lifetime net is +$13.2M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $164.2M across reported positions. 20 SEC filings were submitted jointly with John Gordon Freund.
"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.
ACRX 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
HILLS BOROUGH, CA 94010
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| RCUS | Director | 530,750 | $18.84 | $10.00M | $330.9K | 11 | 2026-06-12 |
| SIBN | 10%+ Owner | 4,094,985 | $25.52 | $104.48M | $4.88M | 1 | 2018-10-19 |
| STRO | 10%+ Owner | 144,584 | $10.69 | $1.55M | $0 | 1 | 2018-10-03 |
| COLLEGIUM PHARMACEUTICAL, INC (ESPR) Delisted | 10%+ Owner | 270 | $3.18 | $859 | $0 | 1 | 2017-12-07 |
| COLL | 10%+ Owner | 1,935,118 | $24.91 | $48.19M | $1.80M | 1 | 2015-05-13 |
| TETRAPHASE PHARMACEUTICALS INC (TTPH) Delisted | 10%+ Owner | 225 | — | — | $0 | 1 | 2014-03-14 |
| TALPHERA, INC. (ACRX) Delisted | 10%+ Owner | 143,597 | $0.86 | $123.5K | $6.18M | 2 | 2014-03-11 |
| Targanta Therapeutics Corp. (ITMN) Delisted | 10%+ Owner | 0 | — | — | $0 | 1 | 2009-02-27 |
Recent Filings
19 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-12 | RCUS | Grant (A) | +5,700 | $0 | EDGAR |
| 2025-06-12 | RCUS | Grant (A) | +13,300 | $0 | EDGAR |
| 2025-02-27 | RCUS | Buy (P) | +20,000 | $201.2K | EDGAR |
| 2024-06-07 | RCUS | Grant (A) | +8,400 | $0 | EDGAR |
| 2023-06-16 | RCUS | Grant (A) | +6,800 | $0 | EDGAR |
| 2022-06-16 | RCUS | Grant (A) | +4,100 | $0 | EDGAR |
| 2021-06-07 | RCUS | Grant (A) | +3,000 | $0 | EDGAR |
| 2021-04-26 | RCUS | Buy (P) | +4,133 | $129.7K | EDGAR |
| 2020-06-08 | RCUS | Mixed | +38,000 | $279.6K | EDGAR |
| 2019-06-10 | RCUS | Grant (A) | — | $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.