RNA US Equity

Atrium Therapeutics, Inc.

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Health Care · Pharmaceutical Preparations · CIK 2093101 · FYE 1231

$11.49

-0.08 (-0.69%)

USD · as of 2026-07-28 · marketstack

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Institutional ownership· 13F filers holding RNA · 2026-Q1 methodology → sources →

161 holders

% of shares outstanding held

86.6%

Shares held (13F)

14,820,412

Reporting holders

161

Top holders

largest 100 of 161 · Δ vs 2025-Q4

#	Holder	Shares	Value	% of shares out	Δ QoQ
1	PRICE T ROWE ASSOCIATES INC /MD/	1,553,2101.6M	$21M	9.08%	NEW†
2	BlackRock, Inc.	1,205,2911.2M	$16M	7.05%	NEW†
3	RA CAPITAL MANAGEMENT, L.P.	864,102864,102	$12M	5.05%	NEW†
4	VANGUARD CAPITAL MANAGEMENT LLC	626,869626,869	$8M	3.66%	NEW†
5	TIG Advisors, LLC	607,552607,552	$8M	3.55%	NEW†
6	Pentwater Capital Management LP	602,649602,649	$8M	3.52%	NEW†
7	O'Connor Alternative Investments LLC	578,011578,011	$8M	3.38%	NEW†
8	Sessa Capital IM, L.P.	551,391551,391	$7M	3.22%	NEW†
9	GOLDMAN SACHS GROUP INC	349,950349,950	$5M	2.05%	NEW†
10	FARALLON CAPITAL MANAGEMENT LLC	349,360349,360	$5M	2.04%	NEW†
11	VANGUARD PORTFOLIO MANAGEMENT LLC	344,369344,369	$5M	2.01%	NEW†
12	GEODE CAPITAL MANAGEMENT, LLC	319,831319,831	$4M	1.87%	NEW
13	683 Capital Management, LLC	300,000300,000	$4M	1.75%	NEW
14	Bellevue Group AG	263,096263,096	$4M	1.54%	NEW
15	STATE STREET CORP	257,086257,086	$3M	1.50%	NEW
16	Weiss Asset Management LP	240,701240,701	$3M	1.41%	NEW
17	CANTOR FITZGERALD, L. P.	235,637235,637	$3M	1.38%	NEW
18	Balyasny Asset Management L.P.	235,115235,115	$3M	1.37%	NEW
19	Squarepoint Ops LLC	231,466231,466	$3M	1.35%	NEW
20	Arbiter Partners Capital Management LLC	230,000230,000	$3M	1.34%	NEW
21	MILLENNIUM MANAGEMENT LLC	190,859190,859	$3M	1.12%	NEW
22	ADAGE CAPITAL PARTNERS GP, L.L.C.	183,580183,580	$2M	1.07%	NEW
23	Slotnik Capital, LLC	180,945180,945	$2M	1.06%	NEW
24	AQR Arbitrage LLC	179,713179,713	$2M	1.05%	NEW
25	TWO SIGMA INVESTMENTS, LP	178,560178,560	$2M	1.04%	NEW
26	MORGAN STANLEY	165,036165,036	$2M	0.96%	NEW
27	Schonfeld Strategic Advisors LLC	162,759162,759	$2M	0.95%	NEW
28	NEXPOINT ASSET MANAGEMENT, L.P.	150,025150,025	$2M	0.88%	NEW
29	Marble Bar Asset Management LLP	147,000147,000	$2M	0.86%	NEW
30	JANUS HENDERSON GROUP PLC	139,973139,973	$2M	0.82%	NEW
31	Bracebridge Capital, LLC	139,239139,239	$2M	0.81%	NEW
32	NOMURA HOLDINGS INC	137,380137,380	$2M	0.80%	NEW
33	BANK OF AMERICA CORP /DE/	136,248136,248	$2M	0.80%	NEW
34	Yakira Capital Management, Inc.	126,645126,645	$2M	0.74%	NEW
35	Creek Drive Management Group LLC	120,000120,000	$2M	0.70%	NEW
36	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	116,598116,598	$2M	0.68%	NEW
37	TD Asset Management Inc	111,200111,200	$1M	0.65%	NEW
38	CITADEL ADVISORS LLC	109,936109,936	$1M	0.64%	NEW
39	Athos Capital Ltd	107,965107,965	$1M	0.63%	NEW
40	Caption Management, LLC	103,592103,592	$1M	0.61%	NEW
41	NORTHERN TRUST CORP	98,58598,585	$1M	0.58%	NEW
42	VANGUARD FIDUCIARY TRUST CO	95,12895,128	$1M	0.56%	NEW
43	FIL Ltd	78,50078,500	$1M	0.46%	NEW
44	ExodusPoint Capital Management, LP	77,44277,442	$1M	0.45%	NEW
45	TUDOR INVESTMENT CORP ET AL	71,35971,359	$954,070	0.42%	NEW
46	Polar Asset Management Partners Inc.	70,00070,000	$935,900	0.41%	NEW
47	NEUBERGER BERMAN GROUP LLC	69,29469,294	$926,460	0.41%	NEW
48	Quarry LP	66,65166,651	$891,124	0.39%	NEW
49	MANUFACTURERS LIFE INSURANCE COMPANY, THE	62,37962,379	$834,007	0.36%	NEW
50	ADAR1 Capital Management, LLC	57,68857,688	$771,000	0.34%	NEW
51	Westchester Capital Management, LLC	55,23655,236	$738,506	0.32%	NEW
52	AWM Investment Company, Inc.	50,00050,000	$668,500	0.29%	NEW
53	Twin Securities, Inc.	49,91349,913	$667,337	0.29%	NEW
54	UBS Group AG	49,81449,814	$666,013	0.29%	NEW
55	ODDO BHF ASSET MANAGEMENT SAS	45,09045,090	$602,853	0.26%	NEW
56	CAXTON ASSOCIATES LLP	44,23044,230	$591,355	0.26%	NEW
57	ALETHEA CAPITAL MANAGEMENT, LLC	43,75843,758	$585,044	0.26%	NEW
58	Bank of New York Mellon Corp	43,69743,697	$584,228	0.26%	NEW
59	CANADA PENSION PLAN INVESTMENT BOARD	41,97041,970	$561,139	0.25%	NEW
60	HIGHBRIDGE CAPITAL MANAGEMENT LLC	40,98640,986	$555,360	0.24%	NEW
61	Saba Capital Management, L.P.	39,64039,640	$529,987	0.23%	NEW
62	FIFTH LANE CAPITAL, LP	35,99935,999	$481,307	0.21%	NEW
63	ROYAL BANK OF CANADA	35,69835,698	$477,000	0.21%	NEW
64	KENNEDY CAPITAL MANAGEMENT LLC	33,97733,977	$454,272	0.20%	NEW
65	MARSHALL WACE, LLP	33,69133,691	$450,449	0.20%	NEW
66	LMR Partners LLP	32,50032,500	$434,525	0.19%	NEW
67	Brevan Howard Capital Management LP	31,64431,644	$423,080	0.18%	NEW
68	Groupe la Francaise	29,69829,698	$397,062	0.17%	NEW
69	FMR LLC	29,29229,292	$391,634	0.17%	NEW
70	Woodline Partners LP	28,84528,845	$385,658	0.17%	NEW
71	Nuveen, LLC	25,30725,307	$338,355	0.15%	NEW
72	Cannon Global Investment Management, LLC	25,08725,087	$335,413	0.15%	NEW
73	CREDIT INDUSTRIEL ET COMMERCIAL	23,00023,000	$307,510	0.13%	NEW
74	Point72 Asset Management, L.P.	22,70822,708	$303,606	0.13%	NEW
75	Fortress Investment Group LLC	22,03322,033	$294,581	0.13%	NEW
76	HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND	20,59020,590	$275,288	0.12%	NEW
77	Fractal Investments LLC	20,00020,000	$267,400	0.12%	NEW
78	JANE STREET GROUP, LLC	19,95519,955	$266,798	0.12%	NEW
79	Vestcor Inc	17,49917,499	$234,000	0.10%	NEW
80	Grantham, Mayo, Van Otterloo & Co. LLC	15,44415,444	$206,486	0.09%	NEW
81	RHUMBLINE ADVISERS	14,95314,953	$199,904	0.09%	NEW
82	AlphaCentric Advisors LLC	13,28613,286	$177,634	0.08%	NEW
83	Susquehanna Portfolio Strategies, LLC	13,11013,110	$175,281	0.08%	NEW
84	ALLIANCEBERNSTEIN L.P.	12,97012,970	$173,409	0.08%	NEW
85	Public Sector Pension Investment Board	12,88212,882	$172,232	0.08%	NEW
86	Quantinno Capital Management LP	12,45412,454	$166,510	0.07%	NEW
87	JPMORGAN CHASE & CO	12,03812,038	$163,116	0.07%	NEW
88	WELLS FARGO & COMPANY/MN	11,41611,416	$152,632	0.07%	NEW
89	SUSQUEHANNA INTERNATIONAL GROUP, LLP	11,34311,343	$151,656	0.07%	NEW
90	Magnetar Financial LLC	10,51210,512	$140,545	0.06%	NEW
91	Invesco Ltd.	10,19310,193	$136,281	0.06%	NEW
92	DEUTSCHE BANK AG\	10,01910,019	$133,954	0.06%	NEW
93	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	9,4889,488	$126,853	0.06%	NEW
94	MetLife Investment Management, LLC	8,8458,845	$118,258	0.05%	NEW
95	BNP PARIBAS FINANCIAL MARKETS	8,2678,267	$110,530	0.05%	NEW
96	Centiva Capital, LP	5,8955,895	$78,816	0.03%	NEW
97	Legal & General Group Plc	5,6575,657	$75,633	0.03%	NEW
98	Vanguard Global Advisers, LLC	5,5855,585	$74,671	0.03%	NEW
99	Russell Investments Group, Ltd.	3,8393,839	$51,338	0.02%	NEW
100	GROUP ONE TRADING LLC	3,6823,682	$49,228	0.02%	NEW

† a filer this large appearing as NEW usually reflects a renamed or succeeded filing entity (the old name stops filing the same quarter) — not a brand-new position.

Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.

Holder trends· top 15 holders · shares held over 6 quarters

green added · red trimmed

Holder

2024-Q4

2025-Q1

2025-Q2

2025-Q3

2025-Q4

2026-Q1

Latest value

PRICE T ROWE ASSOCIATES INC /MD/

—

1.6M

$21M

BlackRock, Inc.

—

1.2M

$16M

RA CAPITAL MANAGEMENT, L.P.

—

864K

$12M

VANGUARD CAPITAL MANAGEMENT LLC

—

627K

$8M

TIG Advisors, LLC

—

608K

$8M

Pentwater Capital Management LP

—

603K

$8M

O'Connor Alternative Investments LLC

—

578K

$8M

Sessa Capital IM, L.P.

—

551K

$7M

GOLDMAN SACHS GROUP INC

—

350K

$5M

FARALLON CAPITAL MANAGEMENT LLC

—

349K

$5M

VANGUARD PORTFOLIO MANAGEMENT LLC

—

344K

$5M

GEODE CAPITAL MANAGEMENT, LLC

—

320K

$4M

683 Capital Management, LLC

—

300K

$4M

Bellevue Group AG

—

263K

$4M

STATE STREET CORP

—

257K

$3M

Shares reported each quarter by the largest current holders. Green = added vs the prior filing, red = trimmed, grey = roughly held; a dash is a quarter with no 13F on file (a gap is skipped, not read as an exit). 13F is filed up to 45 days after quarter-end. Up to 40 quarters (10 years) available — use the selector above.

Institutional footprint by quarter

Line breaks are honest gaps — quarters with no 13F record, or a suppressed % — never interpolated. % of shares outstanding uses today's share count for every quarter (the only count stored).

Quarter	Holders	Shares held	% shares out	Value held
2026-Q1	161	14,820,412	86.6%	$198M
2025-Q4	1	1,775	0.0%	$128,031
2025-Q3	1	1,775	0.0%	$77,337
2025-Q2	1	1,775	0.0%	$50,410
2025-Q1	1	1,775	0.0%	$52,398
2024-Q4	1	1,775	0.0%	$51,617
2024-Q3	1	1,925	0.0%	$88,415
2024-Q2	1	2,075	0.0%	$84,121
2024-Q1	1	2,425	0.0%	$61,886
2023-Q4	1	2,425	0.0%	$22,722
2023-Q3	1	4,125	0.0%	$26,000
2014-Q4	47

Short interest has its own tab now — open SI →

Source: SEC Form 13F — every institution manager (≥ $100M in 13F securities) reporting a long US-listed position, across ~10,250 filers over 10 years of history. 13F is long-only, US-listed, filed up to 45 days after quarter-end.

Activists & large holders· Schedule 13D/G beneficial owners · RNA

Large holders — 13G, passive (top 3 by % of class)

Holder	% of class	Type	As of
PRICE T ROWE ASSOCIATES INC /MD/	10%	QII	2026-03-31	SEC →
BlackRock, Inc.	6.6%	QII	2026-06-30	SEC →
RA CAPITAL MANAGEMENT, L.P.	5.6%	Exempt	2026-03-31	SEC →

Source: SEC Schedule 13D/13G structured XML. 13D = active intent; 13G filers report passively (Rule 13d-1(b) QII / 13d-1(c) Passive / 13d-1(d) Exempt) and are not activists. Percent and delta are the group aggregate the filing reports. Structured 13D/G coverage begins December 2024 (SEC XML mandate).

Institutional ownership· 13F filers holding RNA · 2026-Q1 methodology → sources →

161 holders

% of shares outstanding held

86.6%

Shares held (13F)

14,820,412

Reporting holders

161

Top holders

largest 100 of 161 · Δ vs 2025-Q4

#	Holder	Shares	Value	% of shares out	Δ QoQ
1	PRICE T ROWE ASSOCIATES INC /MD/	1,553,2101.6M	$21M	9.08%	NEW†
2	BlackRock, Inc.	1,205,2911.2M	$16M	7.05%	NEW†
3	RA CAPITAL MANAGEMENT, L.P.	864,102864,102	$12M	5.05%	NEW†
4	VANGUARD CAPITAL MANAGEMENT LLC	626,869626,869	$8M	3.66%	NEW†
5	TIG Advisors, LLC	607,552607,552	$8M	3.55%	NEW†
6	Pentwater Capital Management LP	602,649602,649	$8M	3.52%	NEW†
7	O'Connor Alternative Investments LLC	578,011578,011	$8M	3.38%	NEW†
8	Sessa Capital IM, L.P.	551,391551,391	$7M	3.22%	NEW†
9	GOLDMAN SACHS GROUP INC	349,950349,950	$5M	2.05%	NEW†
10	FARALLON CAPITAL MANAGEMENT LLC	349,360349,360	$5M	2.04%	NEW†
11	VANGUARD PORTFOLIO MANAGEMENT LLC	344,369344,369	$5M	2.01%	NEW†
12	GEODE CAPITAL MANAGEMENT, LLC	319,831319,831	$4M	1.87%	NEW
13	683 Capital Management, LLC	300,000300,000	$4M	1.75%	NEW
14	Bellevue Group AG	263,096263,096	$4M	1.54%	NEW
15	STATE STREET CORP	257,086257,086	$3M	1.50%	NEW
16	Weiss Asset Management LP	240,701240,701	$3M	1.41%	NEW
17	CANTOR FITZGERALD, L. P.	235,637235,637	$3M	1.38%	NEW
18	Balyasny Asset Management L.P.	235,115235,115	$3M	1.37%	NEW
19	Squarepoint Ops LLC	231,466231,466	$3M	1.35%	NEW
20	Arbiter Partners Capital Management LLC	230,000230,000	$3M	1.34%	NEW
21	MILLENNIUM MANAGEMENT LLC	190,859190,859	$3M	1.12%	NEW
22	ADAGE CAPITAL PARTNERS GP, L.L.C.	183,580183,580	$2M	1.07%	NEW
23	Slotnik Capital, LLC	180,945180,945	$2M	1.06%	NEW
24	AQR Arbitrage LLC	179,713179,713	$2M	1.05%	NEW
25	TWO SIGMA INVESTMENTS, LP	178,560178,560	$2M	1.04%	NEW
26	MORGAN STANLEY	165,036165,036	$2M	0.96%	NEW
27	Schonfeld Strategic Advisors LLC	162,759162,759	$2M	0.95%	NEW
28	NEXPOINT ASSET MANAGEMENT, L.P.	150,025150,025	$2M	0.88%	NEW
29	Marble Bar Asset Management LLP	147,000147,000	$2M	0.86%	NEW
30	JANUS HENDERSON GROUP PLC	139,973139,973	$2M	0.82%	NEW
31	Bracebridge Capital, LLC	139,239139,239	$2M	0.81%	NEW
32	NOMURA HOLDINGS INC	137,380137,380	$2M	0.80%	NEW
33	BANK OF AMERICA CORP /DE/	136,248136,248	$2M	0.80%	NEW
34	Yakira Capital Management, Inc.	126,645126,645	$2M	0.74%	NEW
35	Creek Drive Management Group LLC	120,000120,000	$2M	0.70%	NEW
36	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	116,598116,598	$2M	0.68%	NEW
37	TD Asset Management Inc	111,200111,200	$1M	0.65%	NEW
38	CITADEL ADVISORS LLC	109,936109,936	$1M	0.64%	NEW
39	Athos Capital Ltd	107,965107,965	$1M	0.63%	NEW
40	Caption Management, LLC	103,592103,592	$1M	0.61%	NEW
41	NORTHERN TRUST CORP	98,58598,585	$1M	0.58%	NEW
42	VANGUARD FIDUCIARY TRUST CO	95,12895,128	$1M	0.56%	NEW
43	FIL Ltd	78,50078,500	$1M	0.46%	NEW
44	ExodusPoint Capital Management, LP	77,44277,442	$1M	0.45%	NEW
45	TUDOR INVESTMENT CORP ET AL	71,35971,359	$954,070	0.42%	NEW
46	Polar Asset Management Partners Inc.	70,00070,000	$935,900	0.41%	NEW
47	NEUBERGER BERMAN GROUP LLC	69,29469,294	$926,460	0.41%	NEW
48	Quarry LP	66,65166,651	$891,124	0.39%	NEW
49	MANUFACTURERS LIFE INSURANCE COMPANY, THE	62,37962,379	$834,007	0.36%	NEW
50	ADAR1 Capital Management, LLC	57,68857,688	$771,000	0.34%	NEW
51	Westchester Capital Management, LLC	55,23655,236	$738,506	0.32%	NEW
52	AWM Investment Company, Inc.	50,00050,000	$668,500	0.29%	NEW
53	Twin Securities, Inc.	49,91349,913	$667,337	0.29%	NEW
54	UBS Group AG	49,81449,814	$666,013	0.29%	NEW
55	ODDO BHF ASSET MANAGEMENT SAS	45,09045,090	$602,853	0.26%	NEW
56	CAXTON ASSOCIATES LLP	44,23044,230	$591,355	0.26%	NEW
57	ALETHEA CAPITAL MANAGEMENT, LLC	43,75843,758	$585,044	0.26%	NEW
58	Bank of New York Mellon Corp	43,69743,697	$584,228	0.26%	NEW
59	CANADA PENSION PLAN INVESTMENT BOARD	41,97041,970	$561,139	0.25%	NEW
60	HIGHBRIDGE CAPITAL MANAGEMENT LLC	40,98640,986	$555,360	0.24%	NEW
61	Saba Capital Management, L.P.	39,64039,640	$529,987	0.23%	NEW
62	FIFTH LANE CAPITAL, LP	35,99935,999	$481,307	0.21%	NEW
63	ROYAL BANK OF CANADA	35,69835,698	$477,000	0.21%	NEW
64	KENNEDY CAPITAL MANAGEMENT LLC	33,97733,977	$454,272	0.20%	NEW
65	MARSHALL WACE, LLP	33,69133,691	$450,449	0.20%	NEW
66	LMR Partners LLP	32,50032,500	$434,525	0.19%	NEW
67	Brevan Howard Capital Management LP	31,64431,644	$423,080	0.18%	NEW
68	Groupe la Francaise	29,69829,698	$397,062	0.17%	NEW
69	FMR LLC	29,29229,292	$391,634	0.17%	NEW
70	Woodline Partners LP	28,84528,845	$385,658	0.17%	NEW
71	Nuveen, LLC	25,30725,307	$338,355	0.15%	NEW
72	Cannon Global Investment Management, LLC	25,08725,087	$335,413	0.15%	NEW
73	CREDIT INDUSTRIEL ET COMMERCIAL	23,00023,000	$307,510	0.13%	NEW
74	Point72 Asset Management, L.P.	22,70822,708	$303,606	0.13%	NEW
75	Fortress Investment Group LLC	22,03322,033	$294,581	0.13%	NEW
76	HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND	20,59020,590	$275,288	0.12%	NEW
77	Fractal Investments LLC	20,00020,000	$267,400	0.12%	NEW
78	JANE STREET GROUP, LLC	19,95519,955	$266,798	0.12%	NEW
79	Vestcor Inc	17,49917,499	$234,000	0.10%	NEW
80	Grantham, Mayo, Van Otterloo & Co. LLC	15,44415,444	$206,486	0.09%	NEW
81	RHUMBLINE ADVISERS	14,95314,953	$199,904	0.09%	NEW
82	AlphaCentric Advisors LLC	13,28613,286	$177,634	0.08%	NEW
83	Susquehanna Portfolio Strategies, LLC	13,11013,110	$175,281	0.08%	NEW
84	ALLIANCEBERNSTEIN L.P.	12,97012,970	$173,409	0.08%	NEW
85	Public Sector Pension Investment Board	12,88212,882	$172,232	0.08%	NEW
86	Quantinno Capital Management LP	12,45412,454	$166,510	0.07%	NEW
87	JPMORGAN CHASE & CO	12,03812,038	$163,116	0.07%	NEW
88	WELLS FARGO & COMPANY/MN	11,41611,416	$152,632	0.07%	NEW
89	SUSQUEHANNA INTERNATIONAL GROUP, LLP	11,34311,343	$151,656	0.07%	NEW
90	Magnetar Financial LLC	10,51210,512	$140,545	0.06%	NEW
91	Invesco Ltd.	10,19310,193	$136,281	0.06%	NEW
92	DEUTSCHE BANK AG\	10,01910,019	$133,954	0.06%	NEW
93	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	9,4889,488	$126,853	0.06%	NEW
94	MetLife Investment Management, LLC	8,8458,845	$118,258	0.05%	NEW
95	BNP PARIBAS FINANCIAL MARKETS	8,2678,267	$110,530	0.05%	NEW
96	Centiva Capital, LP	5,8955,895	$78,816	0.03%	NEW
97	Legal & General Group Plc	5,6575,657	$75,633	0.03%	NEW
98	Vanguard Global Advisers, LLC	5,5855,585	$74,671	0.03%	NEW
99	Russell Investments Group, Ltd.	3,8393,839	$51,338	0.02%	NEW
100	GROUP ONE TRADING LLC	3,6823,682	$49,228	0.02%	NEW

† a filer this large appearing as NEW usually reflects a renamed or succeeded filing entity (the old name stops filing the same quarter) — not a brand-new position.

Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.

Holder trends· top 15 holders · shares held over 6 quarters

green added · red trimmed

Holder

2024-Q4

2025-Q1

2025-Q2

2025-Q3

2025-Q4

2026-Q1

Latest value

PRICE T ROWE ASSOCIATES INC /MD/

—

1.6M

$21M

BlackRock, Inc.

—

1.2M

$16M

RA CAPITAL MANAGEMENT, L.P.

—

864K

$12M

VANGUARD CAPITAL MANAGEMENT LLC

—

627K

$8M

TIG Advisors, LLC

—

608K

$8M

Pentwater Capital Management LP

—

603K

$8M

O'Connor Alternative Investments LLC

—

578K

$8M

Sessa Capital IM, L.P.

—

551K

$7M

GOLDMAN SACHS GROUP INC

—

350K

$5M

FARALLON CAPITAL MANAGEMENT LLC

—

349K

$5M

VANGUARD PORTFOLIO MANAGEMENT LLC

—

344K

$5M

GEODE CAPITAL MANAGEMENT, LLC

—

320K

$4M

683 Capital Management, LLC

—

300K

$4M

Bellevue Group AG

—

263K

$4M

STATE STREET CORP

—

257K

$3M

Institutional footprint by quarter

Line breaks are honest gaps — quarters with no 13F record, or a suppressed % — never interpolated. % of shares outstanding uses today's share count for every quarter (the only count stored).

Quarter	Holders	Shares held	% shares out	Value held
2026-Q1	161	14,820,412	86.6%	$198M
2025-Q4	1	1,775	0.0%	$128,031
2025-Q3	1	1,775	0.0%	$77,337
2025-Q2	1	1,775	0.0%	$50,410
2025-Q1	1	1,775	0.0%	$52,398
2024-Q4	1	1,775	0.0%	$51,617
2024-Q3	1	1,925	0.0%	$88,415
2024-Q2	1	2,075	0.0%	$84,121
2024-Q1	1	2,425	0.0%	$61,886
2023-Q4	1	2,425	0.0%	$22,722
2023-Q3	1	4,125	0.0%	$26,000
2014-Q4	47

Short interest has its own tab now — open SI →

Activists & large holders· Schedule 13D/G beneficial owners · RNA

Large holders — 13G, passive (top 3 by % of class)

Holder	% of class	Type	As of
PRICE T ROWE ASSOCIATES INC /MD/	10%	QII	2026-03-31	SEC →
BlackRock, Inc.	6.6%	QII	2026-06-30	SEC →
RA CAPITAL MANAGEMENT, L.P.	5.6%	Exempt	2026-03-31	SEC →

RNA US Equity☆

Institutional ownership· 13F filers holding RNA · 2026-Q1 methodology → sources →

Top holders

Holder trends· top 15 holders · shares held over 6 quarters

Institutional footprint by quarter

Activists & large holders· Schedule 13D/G beneficial owners · RNA

Institutional ownership· 13F filers holding RNA · 2026-Q1 methodology → sources →

Top holders

Holder trends· top 15 holders · shares held over 6 quarters

Institutional footprint by quarter

Activists & large holders· Schedule 13D/G beneficial owners · RNA

RNA US Equity