Keros Therapeutics, Inc. (KROS) — Institutional Holders, Q2 2026

133 institutional investment managers reported a KROS position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $198.6M. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

← KROS stock profile

KROS in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

Added to

Trimmed

Sold out

Biggest buyers

AQR CAPITAL MANAGEMENTAdded · +561,296 sh+$6.0M
MACKENZIE FINANCIALAdded · +475,988 sh+$5.1M
BlackRockAdded · +382,424 sh+$4.1M
ADAR1 Capital ManagementAdded · +149,500 sh+$1.6M
DIMENSIONAL FUND ADVISORSAdded · +139,181 sh+$1.5M

Biggest sellers

ARROWSTREET CAPITAL, LIMITED PARTNERSHIPTrimmed · -357,074 sh-$3.8M
D. E. ShawTrimmed · -242,148 sh-$2.6M
GEODE CAPITAL MANAGEMENTTrimmed · -170,619 sh-$1.8M
Connor, Clark & Lunn Investment Management Ltd.Trimmed · -129,999 sh-$1.4M
TWO SIGMA INVESTMENTSTrimmed · -117,186 sh-$1.3M

KROS 13F holders ranked 1–100 of 133

Institutional investors reporting a position in Keros Therapeutics, Inc. on SEC Form 13F-HR for Q2 2026, ranked by reported value.
#	Institution	Shares	Value	% of portfolio	QoQShares vs Q1 2026
1	BlackRock#1 · 2,794,217 sh	2,794,217	$29.9M	<0.01%	+15.9%
2	Nantahala Capital Management#2 · 1,410,419 sh	1,410,419	$15.1M	0.50%	+3.7%
3	AQR CAPITAL MANAGEMENT#3 · 967,859 sh	967,859	$10.4M	<0.01%	+138.1%
4	VANGUARD CAPITAL MANAGEMENT#4 · 833,596 sh	833,596	$8.9M	<0.01%	+0.3%
5	ORBIMED ADVISORS#5 · 759,155 sh	759,155	$8.1M	0.15%	0.0%
6	FEDERATED HERMES#6 · 700,427 sh	700,427	$7.5M	0.01%	+1.6%
7	VANGUARD PORTFOLIO MANAGEMENT#7 · 652,635 sh	652,635	$7.0M	<0.01%	-4.3%
8	MACKENZIE FINANCIAL#8 · 628,438 sh	628,438	$6.7M	<0.01%	+312.2%
9	Madison Avenue Partners#9 · 626,583 sh	626,583	$6.7M	0.29%	0.0%
10	Qube Research & Technologies Ltd#10 · 608,837 sh	608,837	$6.5M	<0.01%	-16.0%
11	JACOBS LEVY EQUITY MANAGEMENT#11 · 605,445 sh	605,445	$6.5M	0.02%	-14.3%
12	STATE STREET#12 · 541,193 sh	541,193	$5.8M	<0.01%	-3.7%
13	GEODE CAPITAL MANAGEMENT#13 · 510,841 sh	510,841	$5.5M	<0.01%	-25.0%
14	DIMENSIONAL FUND ADVISORS#14 · 460,541 sh	460,541	$4.9M	<0.01%	+43.3%
15	CITADEL ADVISORS#15 · 396,098 sh	396,098	$4.2M	<0.01%	-2.6%
16	RENAISSANCE TECHNOLOGIES#16 · 359,086 sh	359,086	$3.8M	<0.01%	-20.8%
17	D. E. Shaw#17 · 267,460 sh	267,460	$2.9M	<0.01%	-47.5%
18	BRIDGEWAY CAPITAL MANAGEMENT#18 · 265,017 sh	265,017	$2.8M	0.05%	+35.9%
19	Nuveen#19 · 247,756 sh	247,756	$2.7M	<0.01%	-5.5%
20	ADAR1 Capital Management#20 · 246,818 sh	246,818	$2.6M	0.12%	+153.6%
21	TWO SIGMA INVESTMENTS#21 · 246,649 sh	246,649	$2.6M	<0.01%	-32.2%
22	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP#22 · 233,175 sh	233,175	$2.5M	<0.01%	-60.5%
23	MILLENNIUM MANAGEMENT#23 · 184,822 sh	184,822	$2.0M	<0.01%	+73.0%
24	GOLDMAN SACHS GROUP#24 · 177,846 sh	177,846	$1.9M	<0.01%	-20.8%
25	CHARLES SCHWAB INVESTMENT MANAGEMENT#25 · 158,712 sh	158,712	$1.7M	<0.01%	-11.8%
26	Man Group plc#26 · 155,541 sh	155,541	$1.7M	<0.01%	-34.8%
27	WELLS FARGO & COMPANY#27 · 155,480 sh	155,480	$1.7M	<0.01%	+2.9%
28	NORTHERN#28 · 153,843 sh	153,843	$1.6M	<0.01%	-39.5%
29	BESSEMER GROUP#29 · 143,853 sh	143,853	$1.5M	<0.01%	0.0%
30	Empowered Funds#30 · 142,151 sh	142,151	$1.5M	<0.01%	-2.3%
31	UBS Group AG#31 · 137,987 sh	137,987	$1.5M	<0.01%	-5.2%
32	VANGUARD FIDUCIARY#32 · 131,314 sh	131,314	$1.4M	<0.01%	+3.2%
33	Connor, Clark & Lunn Investment Management Ltd.#33 · 127,885 sh	127,885	$1.4M	<0.01%	-50.4%
34	O'SHAUGHNESSY ASSET MANAGEMENT#34 · 126,379 sh	126,379	$1.4M	<0.01%	New
35	JANE STREET GROUP#35 · 115,267 sh	115,267	$1.2M	<0.01%	+159.3%
36	ACADIAN ASSET MANAGEMENT#36 · 115,618 sh	115,618	$1.2M	<0.01%	+76.7%
37	Bank of New York Mellon#37 · 103,339 sh	103,339	$1.1M	<0.01%	-14.6%
38	AMERIPRISE FINANCIAL#38 · 101,342 sh	101,342	$1.1M	<0.01%	-1.1%
39	AMERICAN CENTURY COMPANIES#39 · 84,680 sh	84,680	$906.1K	<0.01%	+31.8%
40	LOS ANGELES CAPITAL MANAGEMENT#40 · 84,372 sh	84,372	$902.8K	<0.01%	-51.0%
41	MORGAN STANLEY#41 · 79,286 sh	79,286	$848.4K	0.00%	-36.1%
42	Invesco Ltd.#42 · 71,563 sh	71,563	$765.7K	<0.01%	-18.5%
43	HSBC PLC#43 · 69,926 sh	69,926	$761.5K	<0.01%	+29.5%
44	MARTINGALE ASSET MANAGEMENT L P#44 · 67,796 sh	67,796	$725.4K	0.02%	+42.4%
45	PRINCIPAL FINANCIAL GROUP#45 · 63,807 sh	63,807	$682.7K	<0.01%	+7.1%
46	RBF Capital#46 · 62,800 sh	62,800	$672.0K	0.03%	0.0%
47	Russell Investments Group, Ltd.#47 · 60,892 sh	60,892	$651.5K	<0.01%	-25.1%
48	XTX Topco Ltd#48 · 59,531 sh	59,531	$637.0K	<0.01%	-32.6%
49	Jain Global#49 · 59,209 sh	59,209	$633.5K	<0.01%	New
50	PRICE T ROWE ASSOCIATES#50 · 56,121 sh	56,121	$601.0K	<0.01%	+22.3%
51	PANAGORA ASSET MANAGEMENT#51 · 55,985 sh	55,985	$599.0K	<0.01%	+61.5%
52	IEQ CAPITAL#52 · 55,675 sh	55,675	$595.7K	<0.01%	New
53	Rangeley Capital#53 · 54,400 sh	54,400	$582.1K	0.53%	0.0%
54	PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO#54 · 50,324 sh	50,324	$538.5K	<0.01%	0.0%
55	BNP PARIBAS FINANCIAL MARKETS#55 · 49,851 sh	49,851	$533.4K	<0.01%	+622.1%
56	BARCLAYS PLC#56 · 49,704 sh	49,704	$531.8K	<0.01%	+114.6%
57	Y-Intercept (Hong Kong) Ltd#57 · 48,176 sh	48,176	$515.5K	—	-70.7%
58	MASSACHUSETTS FINANCIAL SERVICES#58 · 47,121 sh	47,121	$504.2K	<0.01%	-3.8%
59	DEUTSCHE BANK AG\#59 · 46,802 sh	46,802	$500.8K	<0.01%	-7.8%
60	Susquehanna Portfolio Strategies#60 · 44,824 sh	44,824	$479.6K	<0.01%	New
61	Mariner#61 · 38,895 sh	38,895	$416.2K	<0.01%	+181.3%
62	FMR#62 · 35,328 sh	35,328	$378.0K	0.00%	+8.1%
63	PRELUDE CAPITAL MANAGEMENT#63 · 35,039 sh	35,039	$374.9K	0.03%	-23.9%
64	MARSHALL WACE, LLP#64 · 34,600 sh	34,600	$370.2K	<0.01%	New
65	ALLIANCEBERNSTEIN L.P.#65 · 33,200 sh	33,200	$366.5K	<0.01%	+7.6%
66	RHUMBLINE ADVISERS#66 · 32,755 sh	32,755	$350.5K	<0.01%	-18.5%
67	BANK OF AMERICA#67 · 31,230 sh	31,230	$334.2K	0.00%	-41.8%
68	Squarepoint Ops#68 · 31,204 sh	31,204	$333.9K	<0.01%	New
69	MERCER GLOBAL ADVISORS#69 · 27,684 sh	27,684	$296.2K	<0.01%	+135.8%
70	Quantinno Capital Management#70 · 26,971 sh	26,971	$288.6K	<0.01%	+13.5%
71	CANADA PENSION PLAN INVESTMENT BOARD#71 · 23,100 sh	23,100	$247.2K	<0.01%	-47.6%
72	SUSQUEHANNA INTERNATIONAL GROUP, LLP#72 · 21,043 sh	21,043	$225.2K	0.00%	+87.2%
73	WEALTH ENHANCEMENT ADVISORY SERVICES#73 · 17,841 sh	17,841	$210.5K	—	New
74	Cerity Partners#74 · 18,301 sh	18,301	$195.8K	<0.01%	New
75	Creative Planning#75 · 16,708 sh	16,708	$178.8K	<0.01%	-6.2%
76	MetLife Investment Management#76 · 16,682 sh	16,682	$178.5K	<0.01%	0.0%
77	Jump Financial#77 · 15,400 sh	15,400	$164.8K	<0.01%	-69.4%
78	EJF Capital#78 · 15,000 sh	15,000	$160.5K	0.11%	0.0%
79	JPMORGAN CHASE#79 · 14,624 sh	14,624	$159.8K	0.00%	-61.2%
80	nVerses Capital#80 · 13,124 sh	13,124	$140.4K	0.22%	New
81	Engineers Gate Manager#81 · 12,215 sh	12,215	$130.7K	<0.01%	-26.4%
82	PDT Partners#82 · 11,405 sh	11,405	$122.0K	<0.01%	-65.2%
83	Point72 Asset Management, L.P.#83 · 10,393 sh	10,393	$111.2K	<0.01%	-90.5%
84	AMERICAN FINANCIAL GROUP#84 · 10,105 sh	10,105	$108.1K	0.04%	0.0%
85	SRS Capital Advisors#85 · 10,047 sh	10,047	$107.5K	<0.01%	+2482.8%
86	NEW YORK STATE COMMON RETIREMENT FUND#86 · 9,116 sh	9,116	$97.5K	<0.01%	0.0%
87	CITIGROUP#87 · 9,015 sh	9,015	$96.5K	0.00%	+308.3%
88	MIRAE ASSET GLOBAL ETFS Ltd.#88 · 8,511 sh	8,511	$91.1K	<0.01%	-38.7%
89	Legal & General Group Plc#89 · 8,410 sh	8,410	$90.0K	0.00%	+220.9%
90	Vanguard Global Advisers#90 · 7,945 sh	7,945	$85.0K	0.00%	-49.6%
91	Police & Firemen's Retirement System of New Jersey#91 · 7,700 sh	7,700	$82.4K	<0.01%	0.0%
92	NISA INVESTMENT ADVISORS#92 · 3,989 sh	3,989	$42.7K	—	+82.2%
93	ROYAL BANK OF CANADA#93 · 3,174 sh	3,174	$34.0K	0.00%	-34.8%
94	China Universal Asset Management , Ltd.#94 · 3,150 sh	3,150	$33.7K	<0.01%	-41.7%
95	IFP Advisors#95 · 3,013 sh	3,013	$32.2K	—	+5.6%
96	Ameritas Investment Partners#96 · 2,372 sh	2,372	$25.4K	<0.01%	0.0%
97	OSAIC#97 · 2,053 sh	2,053	$22.0K	0.00%	0.0%
98	Tower Research Capital (TRC)#98 · 1,966 sh	1,966	$21.0K	<0.01%	-27.1%
99	Integrated Wealth Concepts#99 · 1,587 sh	1,587	$17.0K	<0.01%	New
100	Zurcher Kantonalbank (Zurich Cantonalbank)#100 · 1,415 sh	1,415	$15.1K	0.00%	+102.4%

Funds that sold out of KROS in Q2 2026 (30)

Held KROS at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held KROS in Q1 2026 and reported no position in Q2 2026.
Institution	Shares sold	Value in Q1 2026
HRT FINANCIAL77,002 sh	77,002	$850.0K
STRS OHIO50,600 sh	50,600	$558.6K
GLOBEFLEX CAPITAL L P37,873 sh	37,873	$418.1K
WINTON GROUP Ltd36,433 sh	36,433	$402.2K
AVIVA PLC34,307 sh	34,307	$378.7K
Magnetar Financial30,085 sh	30,085	$332.1K
TUDOR INVESTMENT ET AL28,007 sh	28,007	$309.2K
SIMPLEX TRADING22,288 sh	22,288	$246.1K
FOX RUN MANAGEMENT, L.L.C.22,790 sh	22,790	$243.4K
FRANKLIN RESOURCES21,756 sh	21,756	$240.2K
LSV ASSET MANAGEMENT20,900 sh	20,900	$231.0K
STATE OF WISCONSIN INVESTMENT BOARD15,932 sh	15,932	$175.9K
Brevan Howard Capital Management14,651 sh	14,651	$161.7K
Virtus Investment Advisers12,676 sh	12,676	$139.9K
LAZARD ASSET MANAGEMENT11,705 sh	11,705	$129.2K
OXFORD ASSET MANAGEMENT LLP11,153 sh	11,153	$123.1K
SG Americas Securities9,135 sh	9,135	$101.0K
SIGNATUREFD1,280 sh	1,280	$14.1K
Pinnacle Wealth Planning Services541 sh	541	$6.0K
Private Wealth Asset Management500 sh	500	$5.5K
MAI Capital Management412 sh	412	$4.5K
SUMMIT SECURITIES GROUP153 sh	153	$1.7K
Advisory Services Network123 sh	123	$1.4K
NATIXIS100 sh	100	$1.1K
Cornerstone Financial Management44 sh	44	$486.00
Versant Capital Management31 sh	31	$342.00
JPL Wealth Management12 sh	12	$133.00
Keating Financial Advisory Services5 sh	5	$55.00
TWIN PEAKS WEALTH ADVISORS2 sh	2	$22.00
Hughes Financial Services1 sh	1	$11.00

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.