KEROS THERAPEUTICS INC (KROS) Top 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 March 31, 2026. The institutional investors covered on this page collectively reported approximately $201.20M 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 $26.63M in its March 31, 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 $25.11M, representing an estimated loss of -5.71% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 52% of the total disclosed KROS value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Nantahala Capital Management, Llc, Vanguard 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
147
Total Reported Value
$201.20M
Largest Holder
Blackrock, Inc.
Largest Position
$26.63M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
187
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% | 2,411,793 | $26,626,189 | $25,106,765 | -$1,519,424 | -5.71% | |
| Nantahala Capital Management, Llc | 0.94% | 1,360,419 | $15,019,026 | $14,161,962 | -$857,064 | -5.71% | |
| Vanguard Capital Management Llc | 0.00% | 831,421 | $9,178,888 | $8,655,093 | -$523,795 | -5.71% | |
| Orbimed Advisors Llc | 0.18% | 759,155 | $8,381,071 | $7,902,804 | -$478,267 | -5.71% | |
| Qube Research & Technologies Ltd | 0.01% | 724,926 | $8,003,183 | $7,546,480 | -$456,703 | -5.71% | |
| Jacobs Levy Equity Management, Inc | 0.03% | 706,071 | $7,795,024 | $7,350,199 | -$444,825 | -5.71% | |
| Federated Hermes, Inc. | 0.01% | 689,229 | $7,609,089 | $7,174,874 | -$434,215 | -5.71% | |
| Vanguard Portfolio Management Llc | 0.00% | 682,043 | $7,529,755 | $7,100,068 | -$429,687 | -5.71% | |
| Geode Capital Management, Llc | 0.00% | 681,460 | $7,524,833 | $7,093,999 | -$430,834 | -5.73% | |
| Madison Avenue Partners, Lp | 0.30% | 626,583 | $6,917,476 | $6,522,729 | -$394,747 | -5.71% | |
| Arrowstreet Capital, Limited Partnership | 0.00% | 590,249 | $6,516,349 | $6,144,492 | -$371,857 | -5.71% | |
| State Street Corp | 0.00% | 561,730 | $6,201,499 | $5,847,609 | -$353,890 | -5.71% | |
| D. E. Shaw & Co., Inc. | 0.00% | 509,608 | $5,626,072 | $5,305,019 | -$321,053 | -5.71% | |
| Renaissance Technologies LLC | Jim Simons | 0.01% | 453,482 | $5,006,441 | $4,720,748 | -$285,693 | -5.71% |
| Citadel Advisors Llc | 0.00% | 406,666 | $4,489,592 | $4,233,393 | -$256,199 | -5.71% | |
| Aqr Capital Management Llc | 0.00% | 406,563 | $4,488,455 | $4,232,321 | -$256,134 | -5.71% | |
| Two Sigma Investments, Lp | 0.00% | 363,835 | $4,016,738 | $3,787,522 | -$229,216 | -5.71% | |
| Dimensional Fund Advisors Lp | 0.00% | 321,360 | $3,547,031 | $3,345,358 | -$201,673 | -5.69% | |
| Nuveen, Llc | 0.00% | 262,075 | $2,893,308 | $2,728,201 | -$165,107 | -5.71% | |
| Connor, Clark & Lunn Investment Management Ltd. | 0.01% | 257,884 | $2,847,039 | $2,684,572 | -$162,467 | -5.71% | |
| Northern Trust Corp | 0.00% | 254,187 | $2,806,224 | $2,646,087 | -$160,137 | -5.71% | |
| Man Group Plc | 0.01% | 238,618 | $2,634,343 | $2,484,013 | -$150,330 | -5.71% | |
| Goldman Sachs Group Inc | 0.00% | 224,479 | $2,478,248 | $2,336,826 | -$141,422 | -5.71% | |
| Bridgeway Capital Management, Llc | 0.04% | 195,017 | $2,152,988 | $2,030,127 | -$122,861 | -5.71% | |
| Charles Schwab Investment Management Inc | 0.00% | 179,952 | $1,986,670 | $1,873,300 | -$113,370 | -5.71% | |
| Los Angeles Capital Management Llc | 0.01% | 172,196 | $1,901,044 | $1,792,560 | -$108,484 | -5.71% | |
| Y-Intercept (Hong Kong) Ltd | 0.03% | 164,483 | $1,815,892 | $1,712,268 | -$103,624 | -5.71% | |
| Mackenzie Financial Corp | 0.00% | 152,450 | $1,683,048 | $1,587,005 | -$96,044 | -5.71% | |
| Wells Fargo & Company/Mn | 0.00% | 151,040 | $1,667,482 | $1,572,326 | -$95,156 | -5.71% | |
| Ubs Group Ag | 0.00% | 145,573 | $1,607,125 | $1,515,415 | -$91,710 | -5.71% | |
| Empowered Funds, Llc | 0.01% | 145,517 | $1,606,508 | $1,514,832 | -$91,676 | -5.71% | |
| Vanguard Fiduciary Trust Co | 0.00% | 127,302 | $1,405,414 | $1,325,214 | -$80,200 | -5.71% | |
| Morgan Stanley | 0.00% | 124,112 | $1,370,206 | $1,292,006 | -$78,200 | -5.71% | |
| Bank Of New York Mellon Corp | 0.00% | 120,944 | $1,335,221 | $1,259,027 | -$76,194 | -5.71% | |
| Point72 Asset Management, L.P. | 0.00% | 109,015 | $1,203,526 | $1,134,846 | -$68,680 | -5.71% | |
| Millennium Management Llc | 0.00% | 106,858 | $1,179,712 | $1,112,392 | -$67,320 | -5.71% | |
| Ameriprise Financial Inc | 0.00% | 102,479 | $1,131,368 | $1,066,806 | -$64,562 | -5.71% | |
| Adar1 Capital Management, Llc | 0.06% | 97,318 | $1,074,391 | $1,013,080 | -$61,311 | -5.71% | |
| Xtx Topco Ltd | 0.02% | 88,322 | $975,075 | $919,432 | -$55,643 | -5.71% | |
| Invesco Ltd. | 0.00% | 87,772 | $969,003 | $913,707 | -$55,296 | -5.71% | |
| Russell Investments Group, Ltd. | 0.00% | 81,311 | $897,679 | $846,448 | -$51,231 | -5.71% | |
| American Century Companies Inc | 0.00% | 64,260 | $709,430 | $668,947 | -$40,483 | -5.71% | |
| Rbf Capital, Llc | 0.04% | 62,800 | $693,312 | $653,748 | -$39,564 | -5.71% | |
| Principal Financial Group Inc | 0.00% | 59,594 | $657,918 | $620,374 | -$37,544 | -5.71% | |
| Alliancebernstein L.P. | 0.00% | 30,860 | $628,310 | $321,253 | -$307,057 | -48.87% | |
| Rangeley Capital, Llc | 0.65% | 54,400 | $600,576 | $566,304 | -$34,272 | -5.71% | |
| Hsbc Holdings Plc | 0.00% | 53,986 | $598,705 | $561,994 | -$36,711 | -6.13% | |
| Bank Of America Corp | 0.00% | 53,654 | $592,340 | $558,538 | -$33,802 | -5.71% | |
| Deutsche Bank Ag\ | 0.00% | 50,765 | $560,446 | $528,464 | -$31,982 | -5.71% | |
| Strs Ohio | 0.00% | 50,600 | $558,624 | $526,746 | -$31,878 | -5.71% |
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.