ACLARIS THERAPEUTICS INC (ACRS) Institutional Ownership Changes & 13F Activity
ACLARIS THERAPEUTICS INC (ACRS). 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 Ra Capital Management, L.P., Balyasny Asset Management L.P., Mpm Bioimpact Llc, Kalehua Capital Management Llc, and Citadel Advisors Llc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Manufacturers Life Insurance Company, The | Buy | +7,008 | +27.6% | 32,406 | $171.43K | Q2 2026 | Sep 09, 2026 |
| Citadel Advisors Llc | Sell | -487,238 | -21.7% | 1,762,081 | $9.32M | Q2 2026 | Sep 02, 2026 |
| California State Teachers Retirement System | Sell | -3,680 | -74.1% | 1,285 | $6.80K | Q2 2026 | Aug 24, 2026 |
| Assenagon Asset Management S.A. | Sell | -22,729 | -12.8% | 154,554 | $817.59K | Q2 2026 | Aug 21, 2026 |
| Kalehua Capital Management Llc | Buy | +494,809 | +37.0% | 1,832,365 | $9.69M | Q2 2026 | Aug 19, 2026 |
| Mercer Global Advisors Inc | Buy | +93 | +0.9% | 10,688 | $56.54K | Q2 2026 | Aug 19, 2026 |
| Ra Capital Management, L.P. | Buy | +5,918,954 | +87.0% | 12,723,026 | $67.30M | Q2 2026 | Aug 14, 2026 |
| Balyasny Asset Management L.P. | Sell | -1,337,858 | -39.8% | 2,023,470 | $10.70M | Q2 2026 | Aug 14, 2026 |
| Mpm Bioimpact Llc | Buy | +650,549 | +166.0% | 1,042,467 | $5.51M | Q2 2026 | Aug 14, 2026 |
| D. E. Shaw & Co., Inc. | Sell | -486,305 | -54.0% | 414,499 | $2.19M | Q2 2026 | Aug 14, 2026 |
| Braidwell Lp | Buy | +443,232 | +26.1% | 2,142,348 | $11.33M | Q2 2026 | Aug 14, 2026 |
| Orbimed Advisors Llc | Buy | +421,500 | — | 421,500 | $2.23M | Q2 2026 | Aug 14, 2026 |
| Logos Global Management Lp | Sell | -300,000 | -60.0% | 200,000 | $1.06M | Q2 2026 | Aug 14, 2026 |
| Two Sigma Investments, Lp | Sell | -262,569 | -66.4% | 133,068 | $703.93K | Q2 2026 | Aug 14, 2026 |
| Bridgeway Capital Management, Llc | Sell | -255,000 | -77.3% | 75,019 | $396.85K | Q2 2026 | Aug 14, 2026 |
| Invesco Ltd. | Buy | +243,028 | — | 243,028 | $1.29M | Q2 2026 | Aug 14, 2026 |
| Millennium Management Llc | Sell | -232,232 | -30.7% | 523,895 | $2.77M | Q2 2026 | Aug 14, 2026 |
| Adage Capital Partners Gp, L.L.C. | Buy | +200,000 | +5.2% | 4,071,000 | $21.54M | Q2 2026 | Aug 14, 2026 |
| Atom Investors Lp | Buy | +148,855 | — | 148,855 | $787.44K | Q2 2026 | Aug 14, 2026 |
| Rock Springs Capital Management Lp | Sell | -142,118 | -3.2% | 4,330,532 | $22.91M | Q2 2026 | Aug 14, 2026 |
| Woodline Partners Lp | Buy | +125,431 | +8.4% | 1,611,054 | $8.52M | Q2 2026 | Aug 14, 2026 |
| Superstring Capital Management Lp | Sell | -108,815 | -29.7% | 257,675 | $1.36M | Q2 2026 | Aug 14, 2026 |
| Hudson Bay Capital Management Lp | Buy | +103,180 | +613.4% | 120,000 | $634.80K | Q2 2026 | Aug 14, 2026 |
| Verition Fund Management Llc | Buy | +98,000 | — | 98,000 | $518.42K | Q2 2026 | Aug 14, 2026 |
| Charles Schwab Investment Management Inc | Buy | +85,068 | +32.6% | 346,058 | $1.83M | Q2 2026 | Aug 14, 2026 |
| Sei Investments Co | Sell | -78,376 | -36.1% | 138,778 | $734.14K | Q2 2026 | Aug 14, 2026 |
| Voleon Capital Management Lp | Buy | +77,168 | — | 77,168 | $408.22K | Q2 2026 | Aug 14, 2026 |
| Wells Fargo & Company/Mn | Buy | +72,386 | +199.6% | 108,648 | $574.75K | Q2 2026 | Aug 14, 2026 |
| Price T Rowe Associates Inc | Buy | +64,874 | +41.4% | 221,599 | $1.17M | Q2 2026 | Aug 14, 2026 |
| Barclays Plc | Buy | +51,502 | +239.5% | 73,010 | $386.22K | Q2 2026 | Aug 14, 2026 |
Frequently asked questions about ACRS activity
Which institutional owners are buying ACRS?
Institutional owners buying ACRS 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 ACRS activity?
"Buy" means an investor increased their reported position in ACRS compared to the prior reporting period. This reflects growing exposure to ACLARIS THERAPEUTICS INC (ACRS) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in ACRS increasing?
Institutional interest in ACRS 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 ACRS Institutional Insights
- ACRS Overview
- ACRS 13F Institutional Holders
- ACRS 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
- ACRS Insider Trading & SEC Form 4 Activity
- ACRS Articles
- Top Institutional Investor Stock Rankings