KEROS THERAPEUTICS INC (KROS) Institutional Shareholders
KEROS THERAPEUTICS INC (KROS) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $198.47M in KROS holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of KROS tracked by InsiderSet, reporting ownership valued at approximately $29.90M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $32.08M, representing an estimated gain of +7.29% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 54% of the total disclosed KROS value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Nantahala Capital Management, Llc, Aqr Capital Management Llc, and several other long-term asset managers with concentrated positions in KEROS THERAPEUTICS INC (KROS).
This page ranks the largest institutional KROS shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
131
Total Reported Value
$198.47M
Largest Holder
Blackrock, Inc.
Largest Position
$29.90M
Insider Transactions (90d)
7
Latest Filing Quarter
Q2 2026
New Institutional Positions
104
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 2,794,217 | $29,898,120 | $32,077,611 | +$2,179,491 | +7.29% | |
| Nantahala Capital Management, Llc | 0.91% | 1,410,419 | $15,091,483 | $16,191,610 | +$1,100,127 | +7.29% | |
| Aqr Capital Management Llc | 0.00% | 967,859 | $10,356,092 | $11,111,021 | +$754,929 | +7.29% | |
| Vanguard Capital Management Llc | 0.00% | 833,596 | $8,919,477 | $9,569,682 | +$650,205 | +7.29% | |
| Orbimed Advisors Llc | 0.15% | 759,155 | $8,122,959 | $8,715,099 | +$592,140 | +7.29% | |
| Federated Hermes, Inc. | 0.01% | 700,427 | $7,494,569 | $8,040,902 | +$546,333 | +7.29% | |
| Vanguard Portfolio Management Llc | 0.00% | 652,635 | $6,983,195 | $7,492,250 | +$509,055 | +7.29% | |
| Mackenzie Financial Corp | 0.01% | 628,438 | $6,724,287 | $7,214,468 | +$490,181 | +7.29% | |
| Madison Avenue Partners, Lp | 0.29% | 626,583 | $6,704,438 | $7,193,173 | +$488,735 | +7.29% | |
| Qube Research & Technologies Ltd | 0.01% | 608,837 | $6,514,556 | $6,989,449 | +$474,893 | +7.29% | |
| Jacobs Levy Equity Management, Inc | 0.02% | 605,445 | $6,478,262 | $6,950,509 | +$472,247 | +7.29% | |
| State Street Corp | 0.00% | 541,193 | $5,790,765 | $6,212,896 | +$422,131 | +7.29% | |
| Geode Capital Management, Llc | 0.00% | 510,841 | $5,467,568 | $5,864,455 | +$396,887 | +7.26% | |
| Dimensional Fund Advisors Lp | 0.00% | 460,541 | $4,928,290 | $5,287,011 | +$358,721 | +7.28% | |
| Citadel Advisors Llc | 0.00% | 396,098 | $4,238,249 | $4,547,205 | +$308,956 | +7.29% | |
| Renaissance Technologies LLC | Jim Simons | 0.01% | 359,086 | $3,842,220 | $4,122,307 | +$280,087 | +7.29% |
| D. E. Shaw & Co., Inc. | 0.00% | 267,460 | $2,861,822 | $3,070,441 | +$208,619 | +7.29% | |
| Bridgeway Capital Management, Llc | 0.05% | 265,017 | $2,835,682 | $3,042,395 | +$206,713 | +7.29% | |
| Nuveen, Llc | 0.00% | 247,756 | $2,650,989 | $2,844,239 | +$193,250 | +7.29% | |
| Adar1 Capital Management, Llc | 0.12% | 246,818 | $2,640,953 | $2,833,471 | +$192,518 | +7.29% | |
| Two Sigma Investments, Lp | 0.00% | 246,649 | $2,639,144 | $2,831,531 | +$192,387 | +7.29% | |
| Arrowstreet Capital, Limited Partnership | 0.00% | 233,175 | $2,494,973 | $2,676,849 | +$181,876 | +7.29% | |
| Millennium Management Llc | 0.00% | 184,822 | $1,977,595 | $2,121,757 | +$144,162 | +7.29% | |
| Goldman Sachs Group Inc | 0.00% | 177,846 | $1,902,953 | $2,041,672 | +$138,719 | +7.29% | |
| Charles Schwab Investment Management Inc | 0.00% | 158,712 | $1,698,218 | $1,822,014 | +$123,796 | +7.29% | |
| Man Group Plc | 0.00% | 155,541 | $1,664,289 | $1,785,611 | +$121,322 | +7.29% | |
| Wells Fargo & Company/Mn | 0.00% | 155,480 | $1,663,636 | $1,784,910 | +$121,274 | +7.29% | |
| Northern Trust Corp | 0.00% | 153,843 | $1,646,121 | $1,766,118 | +$119,997 | +7.29% | |
| Bessemer Group Inc | 0.00% | 143,853 | $1,539,000 | $1,651,432 | +$112,432 | +7.31% | |
| Empowered Funds, Llc | 0.01% | 142,151 | $1,521,016 | $1,631,893 | +$110,877 | +7.29% | |
| Ubs Group Ag | 0.00% | 137,987 | $1,476,461 | $1,584,091 | +$107,630 | +7.29% | |
| Vanguard Fiduciary Trust Co | 0.00% | 131,314 | $1,405,060 | $1,507,485 | +$102,425 | +7.29% | |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | 127,885 | $1,368,370 | $1,468,120 | +$99,750 | +7.29% | |
| O'Shaughnessy Asset Management, Llc | 0.01% | 126,379 | $1,352,255 | $1,450,831 | +$98,576 | +7.29% | |
| Jane Street Group, Llc | 0.00% | 115,267 | $1,233,357 | $1,323,265 | +$89,908 | +7.29% | |
| Acadian Asset Management Llc | 0.00% | 115,618 | $1,233,000 | $1,327,295 | +$94,295 | +7.65% | |
| Bank Of New York Mellon Corp | 0.00% | 103,339 | $1,105,726 | $1,186,332 | +$80,606 | +7.29% | |
| Ameriprise Financial Inc | 0.00% | 101,342 | $1,084,360 | $1,163,406 | +$79,046 | +7.29% | |
| American Century Companies Inc | 0.00% | 84,680 | $906,076 | $972,126 | +$66,050 | +7.29% | |
| Los Angeles Capital Management Llc | 0.00% | 84,372 | $902,781 | $968,591 | +$65,810 | +7.29% | |
| Morgan Stanley | 0.00% | 79,286 | $848,366 | $910,203 | +$61,837 | +7.29% | |
| Invesco Ltd. | 0.00% | 71,563 | $765,724 | $821,543 | +$55,819 | +7.29% | |
| Hsbc Holdings Plc | 0.00% | 69,926 | $761,494 | $802,750 | +$41,256 | +5.42% | |
| Martingale Asset Management L P | 0.02% | 67,796 | $725,418 | $778,298 | +$52,880 | +7.29% | |
| Principal Financial Group Inc | 0.00% | 63,807 | $682,735 | $732,504 | +$49,769 | +7.29% | |
| Rbf Capital, Llc | 0.03% | 62,800 | $671,960 | $720,944 | +$48,984 | +7.29% | |
| Russell Investments Group, Ltd. | 0.00% | 60,892 | $651,546 | $699,040 | +$47,494 | +7.29% | |
| Xtx Topco Ltd | 0.01% | 59,531 | $636,982 | $683,416 | +$46,434 | +7.29% | |
| Jain Global Llc | 0.01% | 59,209 | $633,536 | $679,719 | +$46,183 | +7.29% | |
| Price T Rowe Associates Inc | 0.00% | 56,121 | $601,000 | $644,269 | +$43,269 | +7.20% |
Frequently asked questions about KROS
Who owns the most KROS stock?
The largest holders of KROS are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for KEROS THERAPEUTICS INC (KROS).
Is KROS widely held by superinvestors?
Many widely followed stocks like KROS appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly KROS is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.