KEROS THERAPEUTICS INC (KROS) Institutional Ownership Changes & 13F Activity
KEROS THERAPEUTICS INC (KROS). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q4 2025). 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, Orbimed Advisors Llc, Qube Research & Technologies Ltd, D. E. Shaw & Co., Inc., and Citadel Advisors Llc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Cornerstone Financial Management Llc | Buy | +44 | — | 44 | $896.00 | Q4 2025 | Aug 28, 2026 |
| Algert Global Llc | Buy | +145,828 | +305.2% | 193,607 | $3.94M | Q4 2025 | Aug 11, 2026 |
| Sunbelt Securities, Inc. | Buy | +10 | — | 10 | $204.00 | Q4 2025 | Feb 20, 2026 |
| Mackenzie Financial Corp | Buy | +51,385 | — | 51,385 | $1.04M | Q4 2025 | Feb 18, 2026 |
| Madison Avenue Partners, Lp | Buy | +823,707 | — | 823,707 | $16.77M | Q4 2025 | Feb 17, 2026 |
| Orbimed Advisors Llc | Buy | +804,212 | — | 804,212 | $16.37M | Q4 2025 | Feb 17, 2026 |
| Qube Research & Technologies Ltd | Buy | +783,918 | — | 783,918 | $15.96M | Q4 2025 | Feb 17, 2026 |
| D. E. Shaw & Co., Inc. | Buy | +755,473 | — | 755,473 | $15.38M | Q4 2025 | Feb 17, 2026 |
| Citadel Advisors Llc | Buy | +472,520 | — | 472,520 | $9.62M | Q4 2025 | Feb 17, 2026 |
| Two Sigma Investments, Lp | Buy | +318,439 | — | 318,439 | $6.48M | Q4 2025 | Feb 17, 2026 |
| Weiss Asset Management Lp | Buy | +254,063 | — | 254,063 | $5.17M | Q4 2025 | Feb 17, 2026 |
| Northern Trust Corp | Buy | +250,571 | — | 250,571 | $5.10M | Q4 2025 | Feb 17, 2026 |
| Millennium Management Llc | Buy | +220,209 | — | 220,209 | $4.48M | Q4 2025 | Feb 17, 2026 |
| Man Group Plc | Buy | +190,207 | — | 190,207 | $3.87M | Q4 2025 | Feb 17, 2026 |
| Aqr Capital Management Llc | Buy | +180,543 | — | 180,543 | $3.68M | Q4 2025 | Feb 17, 2026 |
| Two Sigma Advisers, Lp | Buy | +171,800 | — | 171,800 | $3.50M | Q4 2025 | Feb 17, 2026 |
| Jump Financial, Llc | Buy | +161,136 | — | 161,136 | $3.28M | Q4 2025 | Feb 17, 2026 |
| Nomura Holdings Inc | Buy | +156,753 | — | 156,753 | $3.19M | Q4 2025 | Feb 17, 2026 |
| Ameriprise Financial Inc | Buy | +122,828 | — | 122,828 | $2.50M | Q4 2025 | Feb 17, 2026 |
| Pdt Partners, Llc | Buy | +112,183 | — | 112,183 | $2.28M | Q4 2025 | Feb 17, 2026 |
| Bank Of America Corp | Buy | +100,114 | — | 100,114 | $2.04M | Q4 2025 | Feb 17, 2026 |
| Rangeley Capital, Llc | Buy | +96,800 | — | 96,800 | $1.97M | Q4 2025 | Feb 17, 2026 |
| Rbf Capital, Llc | Buy | +81,724 | — | 81,724 | $1.66M | Q4 2025 | Feb 17, 2026 |
| Russell Investments Group, Ltd. | Buy | +80,774 | — | 80,774 | $1.64M | Q4 2025 | Feb 17, 2026 |
| Engineers Gate Manager Lp | Buy | +62,369 | — | 62,369 | $1.27M | Q4 2025 | Feb 17, 2026 |
| Bridgeway Capital Management, Llc | Buy | +60,078 | — | 60,078 | $1.22M | Q4 2025 | Feb 17, 2026 |
| Public Employees Retirement System Of Ohio | Buy | +50,324 | — | 50,324 | $1.02M | Q4 2025 | Feb 17, 2026 |
| Canada Pension Plan Investment Board | Buy | +44,100 | — | 44,100 | $897.88K | Q4 2025 | Feb 17, 2026 |
| Point72 Asset Management, L.P. | Buy | +38,848 | — | 38,848 | $790.95K | Q4 2025 | Feb 17, 2026 |
| Fmr Llc | Buy | +35,597 | — | 35,597 | $724.76K | Q4 2025 | Feb 17, 2026 |
Frequently asked questions about KROS activity
Which institutional owners are buying KROS?
Institutional owners buying KROS 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 KROS activity?
"Buy" means an investor increased their reported position in KROS compared to the prior reporting period. This reflects growing exposure to KEROS THERAPEUTICS INC (KROS) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in KROS increasing?
Institutional interest in KROS 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.
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