David Hallal
CIK 1457477 · Chief Executive Officer · last filed 2026-06-04
"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.
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Disclosed Exposure
$91.80M
Companies
5
Total Filings
115
Lifetime Open-Market Net
-$16.84M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| KLRS | Director | — | $3.34 | — | $0 | 2 | 2026-06-04 |
| SRRK | Chief Executive Officer | 1,844,034 | $49.37 | $91.04M | -$3.97M | 15 | 2026-04-20 |
| iTeos Therapeutics, Inc. (ITOS) Delisted | Director | 0 | $10.15 | $0 | -$3.94M | 9 | 2025-08-29 |
| SEER | Director | 355,128 | $2.14 | $760.0K | $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 4 of 12
115 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2022-05-19 | Kalaris Therapeutics, Inc. (ALVR) Delisted | Grant (A) | — | $0 | EDGAR |
| 2022-04-22 | Kalaris Therapeutics, Inc. (ALVR) Delisted | Sell (S) | −4,227 | -$24.8K | EDGAR |
| 2022-03-11 | Kalaris Therapeutics, Inc. (ALVR) Delisted | Sell (S) | −65,725 | -$491.8K | EDGAR |
| 2022-01-25 | Kalaris Therapeutics, Inc. (ALVR) Delisted | Sell (S) | −17,100 | -$136.9K | EDGAR |
| 2021-12-22 | iTeos Therapeutics, Inc. (ITOS) Delisted | Mixed | — | -$2.00M | EDGAR |
| 2021-06-22 | SEER | Grant (A) | — | $0 | EDGAR |
| 2021-06-21 | iTeos Therapeutics, Inc. (ITOS) Delisted | Grant (A) | — | $0 | EDGAR |
| 2021-06-01 | SRRK | Grant (A) | — | $0 | EDGAR |
| 2021-05-27 | Kalaris Therapeutics, Inc. (ALVR) Delisted | Grant (A) | — | $0 | EDGAR |
| 2021-01-25 | Kalaris Therapeutics, Inc. (ALVR) Delisted | Grant (A) | +147,000 | $0 | EDGAR |
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
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.
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.