Winton entered ATRC position by 35,800 shares
This StonkWhisper whale intelligence report documents significant institutional position changes in $ATRC based on SEC 13F filings and block-level trading data. Quarterly 13F disclosures are required for institutional investment managers with at least $100 million in qualifying assets under management. These filings reveal long positions in U.S. equities held as of quarter end. Material changes in institutional positioning — particularly from concentrated funds with a history of high-conviction bets — are tracked by StonkWhisper as leading indicators of institutional thesis formation or exit.
Position Change Detail
Other Winton Positions This Period
| Ticker | Issuer | Change Type | Share Change | Value |
|---|---|---|---|---|
| GTM | ZOOMINFO TECHNOLOGIES INC | Decreased | 980,178 | $80.4M |
| GNW | GENWORTH FINL INC | Decreased | 806,775 | $238.8M |
| ADT | ADT INC DEL | Decreased | 728,980 | $1.6B |
| LQD | ISHARES TR | New | +710,173 | $77.5B |
| KWE1 | RING ENERGY INC | Decreased | 642,616 | $330.8M |
| PAYO | PAYONEER GLOBAL INC | New | +607,551 | $4.3B |
| VCIT | VANGUARD SCOTTSDALE FDS | New | +605,000 | $50.0B |
| BDTX | BLACK DIAMOND THERAPEUTICS I | Exited | 538,259 | — |
| CRGY | CRESCENT ENERGY COMPANY | Exited | 522,686 | — |
| MAT | MATTEL INC | Exited | 509,872 | — |
Other Whales Moving ATRC This Period
| Manager | Change Type | Share Change |
|---|---|---|
| State Street | Increased | +87,827 |
| First Eagle | Increased | +35,500 |
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Data sourced from SEC 13F institutional holdings filings. This page does not constitute financial advice. StonkWhisper presents public records — it does not verify or guarantee the accuracy of institutional filings. 13F filings are reported quarterly and may lag actual positions.
Last updated: August 12, 2026 at 06:03 UTC