STAAR SURGICAL CO (STAA) Institutional Ownership Changes & 13F Activity
STAAR SURGICAL CO (STAA). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Madison Avenue Partners, Lp, Point72 Asset Management, L.P., Goldman Sachs Group Inc, Citadel Advisors Llc, and Two Sigma Investments, Lp.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| State Street Corp | Sell | -63,642 | -3.5% | 1,769,354 | $50.76M | Q2 2026 | Sep 22, 2026 |
| Manufacturers Life Insurance Company, The | Buy | +9,148 | — | 9,148 | $262.46K | Q2 2026 | Sep 09, 2026 |
| Citadel Advisors Llc | Sell | -826,044 | -78.0% | 233,384 | $6.70M | Q2 2026 | Sep 02, 2026 |
| Cornerstone Financial Management Llc | Buy | +17 | — | 17 | $488.00 | Q2 2026 | Aug 28, 2026 |
| Corient Private Wealth Llc | Buy | +771 | +1.6% | 48,968 | $1.40M | Q2 2026 | Aug 27, 2026 |
| California State Teachers Retirement System | Buy | +1,935 | +6.1% | 33,754 | $968.40K | Q2 2026 | Aug 24, 2026 |
| Transamerica Financial Advisors, Llc | Buy | +22 | — | 22 | $631.00 | Q2 2026 | Aug 17, 2026 |
| Madison Avenue Partners, Lp | Buy | +1,734,070 | +71.0% | 4,175,748 | $119.80M | Q2 2026 | Aug 14, 2026 |
| Point72 Asset Management, L.P. | Buy | +1,614,294 | +196.1% | 2,437,446 | $69.93M | Q2 2026 | Aug 14, 2026 |
| Goldman Sachs Group Inc | Buy | +1,080,870 | +101.0% | 2,150,809 | $61.71M | Q2 2026 | Aug 14, 2026 |
| Two Sigma Investments, Lp | Sell | -449,298 | -80.3% | 110,288 | $3.16M | Q2 2026 | Aug 14, 2026 |
| Jane Street Group, Llc | Sell | -417,622 | -94.4% | 24,559 | $704.60K | Q2 2026 | Aug 14, 2026 |
| Defilade Capital Management, L.P. | Buy | +322,126 | — | 322,126 | $9.24M | Q2 2026 | Aug 14, 2026 |
| Squarepoint Ops Llc | Sell | -158,429 | -45.7% | 188,292 | $5.40M | Q2 2026 | Aug 14, 2026 |
| Invesco Ltd. | Buy | +133,417 | — | 133,417 | $3.83M | Q2 2026 | Aug 14, 2026 |
| Bank Of America Corp | Buy | +119,030 | +183.8% | 183,775 | $5.27M | Q2 2026 | Aug 14, 2026 |
| Susquehanna International Group, Llp | Sell | -101,451 | -55.4% | 81,601 | $2.34M | Q2 2026 | Aug 14, 2026 |
| Ameriprise Financial Inc | Buy | +77,890 | — | 77,890 | $2.23M | Q2 2026 | Aug 14, 2026 |
| Meros Investment Management, Lp | Buy | +65,000 | — | 65,000 | $1.86M | Q2 2026 | Aug 14, 2026 |
| Dark Forest Capital Management Lp | Buy | +51,621 | — | 51,621 | $1.48M | Q2 2026 | Aug 14, 2026 |
| Anatole Investment Management Ltd | Buy | +50,000 | +3.1% | 1,651,701 | $47.39M | Q2 2026 | Aug 14, 2026 |
| Boothbay Fund Management, Llc | Buy | +37,161 | — | 37,161 | $1.07M | Q2 2026 | Aug 14, 2026 |
| Charles Schwab Investment Management Inc | Buy | +37,137 | +9.1% | 445,713 | $12.79M | Q2 2026 | Aug 14, 2026 |
| American Capital Management Inc | Sell | -31,376 | -3.6% | 846,659 | $24.29M | Q2 2026 | Aug 14, 2026 |
| Jain Global Llc | Buy | +28,666 | — | 28,666 | $822.43K | Q2 2026 | Aug 14, 2026 |
| Engineers Gate Manager Lp | Buy | +21,550 | — | 21,550 | $618.27K | Q2 2026 | Aug 14, 2026 |
| Wells Fargo & Company/Mn | Buy | +19,180 | +132.6% | 33,647 | $965.33K | Q2 2026 | Aug 14, 2026 |
| Balyasny Asset Management L.P. | Buy | +18,871 | — | 18,871 | $541.41K | Q2 2026 | Aug 14, 2026 |
| Xtx Topco Ltd | Sell | -15,607 | -45.9% | 18,431 | $528.78K | Q2 2026 | Aug 14, 2026 |
| Schonfeld Strategic Advisors Llc | Buy | +13,155 | — | 13,155 | $377.42K | Q2 2026 | Aug 14, 2026 |
Frequently asked questions about STAA activity
Which institutional owners are buying STAA?
Institutional owners buying STAA include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in STAA activity?
"Buy" means an investor increased their reported position in STAA compared to the prior reporting period. This reflects growing exposure to STAAR SURGICAL CO (STAA) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in STAA increasing?
Institutional interest in STAA can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
Related STAA Institutional Insights
- STAA Overview
- STAA 13F Institutional Holders
- STAA Top Institutional Shareholders
- Healthcare Sector Institutional Ownership
- Healthcare Sector Portfolio Overlap
- Institutional Portfolio Overlap & Shared Holdings
- Most Bought Healthcare Stocks By Institutional Investors
- Most Sold Healthcare Stocks By Institutional Investors
- STAA Insider Trading & SEC Form 4 Activity
- STAA Articles
- Top Institutional Investor Stock Rankings