David Hallal
CIK 1457477 · Chief Executive Officer · last filed 2026-09-23
"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.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
ALVR 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
352 KNOTTER DRIVE
CHESHIRE, CT 06410
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| SRRK | Chief Executive Officer | 1,639,034 | $42.50 | $69.66M | -$3.97M | 16 | 2026-09-23 |
| KLRS | Director | — | $1.83 | — | $0 | 2 | 2026-06-04 |
| iTeos Therapeutics, Inc. (ITOS) Delisted | Director | 0 | $10.15 | $0 | -$3.94M | 9 | 2025-08-29 |
| SEER | Director | 355,128 | $1.99 | $706.7K | $0 | 5 | 2024-06-14 |
| Kalaris Therapeutics, Inc. (ALVR) Delisted | Director | 99,210 | $9.81 | $973.3K | -$8.93M | 15 | 2024-06-07 |
Recent Filings · Page 6 of 12
116 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2016-08-10 | — | Sell (S) | −332 | -$45.5K | |
| 2016-04-05 | — | Sell (S) | −1,414 | -$192.1K | |
| 2016-03-01 | — | Mixed | +17,986 | -$279.8K | |
| 2016-02-08 | — | Mixed | +29,839 | -$1.59M | |
| 2015-08-11 | — | Sell (S) | −329 | -$62.5K | |
| 2015-08-05 | — | Sell (S) | −612 | -$120.3K | |
| 2015-04-02 | — | Grant (A) | +11,270 | $0 | |
| 2015-03-03 | — | Mixed | +8,825 | -$131.6K | |
| 2015-02-12 | — | Sell (S) | −1,980 | -$338.9K | |
| 2015-02-09 | — | Mixed | +8,770 | -$507.9K |
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.