← United States · Coverage record
US · SEC FORM 4
STAAR SURGICAL CO
STAA · Nasdaq · CIK 0000718937 · Healthcare · Medical Instruments & Supplies
INSIDER SIGNAL
0 qualifying P purchase groups
in the current 180-day scoring window
40 Form 4 transaction lines observed in the same window
0 sales · 40 option, withholding, award, gift or other lines
WHY NO ACTIVE SIGNAL?
Score anatomy
No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.
Why is there no score?
- No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
- Sales and other Form 4 activity remain visible as context and do not create a negative score.
Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.
Insider activity timeline
Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.
Showing the six most active owners; 1 additional owner(s) remain in Form 4 evidence.
Purchase breadth, concentration & cluster buying
These modules activate when qualifying purchases enter the 180-day research window.
SIGNAL HISTORY
Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2026-03-13 · BROADWOOD CAPITAL INC; BROADWOOD PARTNERS, L.P.; Bradsher Neal C.
Recent Form 4 activity
P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.
Market context
Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.
Short interest
Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.
- Shares short
- 3,737,563
- Previous report
- 4,631,284
- Avg daily volume
- 1,329,384
- Days to cover
- 2.8
FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.
Historical equity purchases
Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.
| Transaction date | Reporting owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-03-13 | BROADWOOD CAPITAL INC; BROADWOOD PARTNERS, L.P.; Bradsher Neal C | Purchase (P) | Common Stock | 316,017 | USD 18.62 | USD 5,884,237 | SEC filing ↗ |
| 2026-03-12 | BROADWOOD CAPITAL INC; BROADWOOD PARTNERS, L.P.; Bradsher Neal C | Purchase (P) | Common Stock | 299,432 | USD 18.12 | USD 5,425,708 | SEC filing ↗ |
| 2026-03-11 | BROADWOOD CAPITAL INC; BROADWOOD PARTNERS, L.P.; Bradsher Neal C | Purchase (P) | Common Stock | 54,764 | USD 17.52 | USD 959,465 | SEC filing ↗ |
| 2026-01-09 | BROADWOOD CAPITAL INC; BROADWOOD PARTNERS, L.P.; Bradsher Neal C | Purchase (P) | Common Stock | 27,485 | USD 22.05 | USD 606,044 | SEC filing ↗ |
| 2026-01-08 | BROADWOOD CAPITAL INC; BROADWOOD PARTNERS, L.P.; Bradsher Neal C | Purchase (P) | Common Stock | 3,240 | USD 21.94 | USD 71,086 | SEC filing ↗ |
| 2026-01-07 | BROADWOOD CAPITAL INC; BROADWOOD PARTNERS, L.P.; Bradsher Neal C | Purchase (P) | Common Stock | 66,467 | USD 22.00 | USD 1,462,274 | SEC filing ↗ |
| 2026-01-06 | BROADWOOD CAPITAL INC; BROADWOOD PARTNERS, L.P.; Bradsher Neal C | Purchase (P) | Common Stock | 336,946 | USD 21.62 | USD 7,284,735 | SEC filing ↗ |
| 2025-11-21 | BROADWOOD CAPITAL INC; BROADWOOD PARTNERS, L.P.; Bradsher Neal C | Purchase (P) | Common Stock | 797,486 | USD 27.86 | USD 22,217,960 | SEC filing ↗ |
| 2025-11-20 | BROADWOOD CAPITAL INC; BROADWOOD PARTNERS, L.P.; Bradsher Neal C | Purchase (P) | Common Stock | 393,382 | USD 27.14 | USD 10,676,387 | SEC filing ↗ |
| 2025-11-19 | BROADWOOD CAPITAL INC; BROADWOOD PARTNERS, L.P.; Bradsher Neal C | Purchase (P) | Common Stock | 309,132 | USD 26.42 | USD 8,167,267 | SEC filing ↗ |
| 2025-04-10 | BROADWOOD CAPITAL INC; BROADWOOD PARTNERS, L.P.; Bradsher Neal C | Purchase (P) | Common Stock | 900 | USD 15.18 | USD 13,662 | SEC filing ↗ |
| 2025-04-09 | BROADWOOD CAPITAL INC; BROADWOOD PARTNERS, L.P.; Bradsher Neal C | Purchase (P) | Common Stock | 8,200 | USD 15.08 | USD 123,656 | SEC filing ↗ |
| 2025-04-08 | BROADWOOD CAPITAL INC; BROADWOOD PARTNERS, L.P.; Bradsher Neal C | Purchase (P) | Common Stock | 178,127 | USD 15.32 | USD 2,729,553 | SEC filing ↗ |
| 2025-04-07 | BROADWOOD CAPITAL INC; BROADWOOD PARTNERS, L.P.; Bradsher Neal C | Purchase (P) | Common Stock | 138,054 | USD 15.61 | USD 2,155,517 | SEC filing ↗ |
| 2025-04-04 | BROADWOOD CAPITAL INC; BROADWOOD PARTNERS, L.P.; Bradsher Neal C | Purchase (P) | Common Stock | 497,631 | USD 15.91 | USD 7,915,133 | SEC filing ↗ |
Form 4 evidence
72 transaction lines in the latest 365-day window; 615 in local history.
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-08-14 | Michna Magda | Option exercise / conversion (M) | Common Stock | 6,599 | USD 4.36 | USD 28,798 | SEC filing ↗ |
| 2026-08-14 | Michna Magda | Tax withholding (F) | Common Stock | 3,356 | USD 26.18 | USD 87,860 | SEC filing ↗ |
| 2026-08-14 | Foust Warren | Option exercise / conversion (M) | Common Stock | 10,997 | USD 0.00 | USD 0 | SEC filing ↗ |
Show recent Form 4 evidence (30 grouped rows)
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-08-14 | Michna Magda | Option exercise / conversion (M) | Common Stock | 6,599 | USD 4.36 | USD 28,798 | SEC filing ↗ |
| 2026-08-14 | Michna Magda | Tax withholding (F) | Common Stock | 3,356 | USD 26.18 | USD 87,860 | SEC filing ↗ |
| 2026-08-14 | Foust Warren | Option exercise / conversion (M) | Common Stock | 10,997 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-08-14 | Foust Warren | Tax withholding (F) | Common Stock | 5,595 | USD 26.18 | USD 146,477 | SEC filing ↗ |
| 2026-08-14 | ANDREWS DEBORAH J | Option exercise / conversion (M) | Common Stock | 5,233 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-08-14 | ANDREWS DEBORAH J | Tax withholding (F) | Common Stock | 2,662 | USD 26.18 | USD 69,691 | SEC filing ↗ |
| 2026-07-31 | Foust Warren | Option exercise / conversion (M) | Common Stock | 20,787 | USD — | USD — | SEC filing ↗ |
| 2026-07-31 | Foust Warren | Tax withholding (F) | Common Stock | 10,576 | USD 24.36 | USD 257,631 | SEC filing ↗ |
| 2026-07-31 | ANDREWS DEBORAH J | Option exercise / conversion (M) | Common Stock | 20,787 | USD — | USD — | SEC filing ↗ |
| 2026-07-31 | ANDREWS DEBORAH J | Tax withholding (F) | Common Stock | 10,576 | USD 24.36 | USD 257,631 | SEC filing ↗ |
| 2026-06-25 | ANDREWS DEBORAH J | Option exercise / conversion (M) | Common Stock | 13,955 | USD — | USD — | SEC filing ↗ |
| 2026-06-25 | ANDREWS DEBORAH J | Tax withholding (F) | Common Stock | 6,480 | USD 31.21 | USD 202,241 | SEC filing ↗ |
| 2026-06-18 | SILVERMAN LOU | Option exercise / conversion (M) | Common Stock | 10,683 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-18 | Jiang Wei | Option exercise / conversion (M) | Common Stock | 10,683 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-18 | Butcher Arthur C | Option exercise / conversion (M) | Common Stock | 5,341 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-12 | Zhou Lilian Yansheng | Award / grant (A) | Common Stock | 3,530 | USD 28.29 | USD 99,864 | SEC filing ↗ |
| 2026-05-15 | Michna Magda | Tax withholding (F) | Common Stock | 9,703 | USD 32.07 | USD 311,175 | SEC filing ↗ |
| 2026-05-15 | Michna Magda | Award / grant (A) | Common Stock | 19,795 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-15 | Foust Warren | Tax withholding (F) | Common Stock | 13,055 | USD 32.07 | USD 418,674 | SEC filing ↗ |
| 2026-05-15 | Foust Warren | Award / grant (A) | Common Stock | 25,659 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-15 | ANDREWS DEBORAH J | Tax withholding (F) | Common Stock | 5,632 | USD 32.07 | USD 180,618 | SEC filing ↗ |
| 2026-05-15 | ANDREWS DEBORAH J | Award / grant (A) | Common Stock | 15,699 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-05-08 | Michna Magda | Tax withholding (F) | Common Stock | 1,680 | USD 26.69 | USD 44,839 | SEC filing ↗ |
| 2026-05-08 | Foust Warren | Tax withholding (F) | Common Stock | 3,448 | USD 26.69 | USD 92,027 | SEC filing ↗ |
| 2026-03-14 | Michna Magda | Option exercise / conversion (M) | Common Stock | 17,595 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-03-14 | Michna Magda | Tax withholding (F) | Common Stock | 6,313 | USD 18.84 | USD 118,937 | SEC filing ↗ |
| 2026-03-14 | Foust Warren | Option exercise / conversion (M) | Common Stock | 29,325 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-03-13 | BROADWOOD CAPITAL INC; BROADWOOD PARTNERS, L.P.; Bradsher Neal C | Purchase (P) | Common Stock | 316,017 | USD 18.62 | USD 5,884,237 | SEC filing ↗ |
| 2026-03-12 | Michna Magda | Option exercise / conversion (M) | Common Stock | 6,178 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-03-12 | Michna Magda | Tax withholding (F) | Common Stock | 2,216 | USD 18.39 | USD 40,752 | SEC filing ↗ |
Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.
Snapshot & identity
| Snapshot date | 2026-10-18 |
|---|---|
| Ranking version | US-v1.2 |
| Data quality | PASS ELIGIBLE · — |
| Ticker | STAA |
| CIK | 0000718937 |
| Sector | Healthcare |
| Industry | Medical Instruments & Supplies Yahoo Finance |
| SEC SIC | 3851 Ophthalmic Goods |
| Exchange | Nasdaq |
Data coverage
| Local Form 4 history | 615 transaction lines from 2020-01-02 to 2026-08-14 152 P purchase lines · 138 S sale lines · 325 other lines |
|---|---|
| SEC company submissions | Open SEC filings ↗ |
Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.