IMCR US Equity

Immunocore Holdings plc

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Health Care · Biological Products, (No Diagnostic Substances) · CIK 1671927 · FYE 1231

$33.87

+0.45 (+1.35%)

USD · as of 2026-07-30 · marketstack

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

142 holders

% of shares outstanding held

103.5%

Shares held (13F)

52,457,286

Reporting holders

142

Institutional 13F holdings sum to 103.5% of shares outstanding. Readings above 100% reflect securities-lending double counting: shares on loan to short sellers are reported long by both the lending institution and the one that bought them. FINRA short interest of 8,969,565 shares (settlement 2026-04-30) accounts for the excess.

Active share of register98.2%136 active filers

Index / screened out1.8%6 filers

Reporting holders1422026-Q1

Top-10 concentration60.3%

HHI0.0469

Effective holders21.3

Crowding percentile22.8of 785 same-size names

Top holders

largest 100 of 142 · Δ vs 2025-Q4

#	Holder	Shares	Value	% of shares out	Δ QoQ
1	RTW INVESTMENTS, LP	4,869,7984.9M	$147M	9.61%	—
2	FMR LLC	4,829,1544.8M	$146M	9.53%	ADD 6%
3	WELLINGTON MANAGEMENT GROUP LLP	4,706,1684.7M	$142M	9.28%	—
4	PRIMECAP MANAGEMENT CO/CA/	3,693,2413.7M	$111M	7.29%	TRIM -7%
5	Bellevue Group AG	2,796,8032.8M	$84M	5.52%	—
6	Vestal Point Capital, LP	2,766,8682.8M	$83M	5.46%	ADD 373%
7	TANG CAPITAL MANAGEMENT LLC	2,649,3682.6M	$80M	5.23%	—
8	Deep Track Capital, LP	1,931,8841.9M	$58M	3.81%	TRIM -4%
9	T. Rowe Price Investment Management, Inc.	1,891,6001.9M	$57M	3.73%	TRIM -72%
10	Logos Global Management LP	1,500,0001.5M	$45M	2.96%	ADD 76%
11	BVF INC/IL	1,294,4631.3M	$39M	2.55%	TRIM -13%
12	MILLENNIUM MANAGEMENT LLC	1,237,4031.2M	$37M	2.44%	ADD 36%
13	ARMISTICE CAPITAL, LLC	1,188,0001.2M	$36M	2.34%	ADD 8%
14	Point72 Asset Management, L.P.	1,102,2711.1M	$33M	2.17%	ADD 119%
15	Fiera Capital Corp	1,080,0991.1M	$33M	2.13%	ADD 3%
16	TWO SIGMA INVESTMENTS, LP	1,021,2651.0M	$31M	2.01%	ADD 184%
17	PRICE T ROWE ASSOCIATES INC /MD/	919,332919,332	$28M	1.81%	TRIM -5%
18	Kynam Capital Management, LP	884,937884,937	$27M	1.75%	ADD 3%
19	BAKER BROS. ADVISORS LP	734,397734,397	$22M	1.45%	TRIM -68%
20	Trails Edge Capital Partners, LP	682,597682,597	$21M	1.35%	—
21	Caption Management, LLC	661,786661,786	$20M	1.31%	ADD 601%
22	BlackRock, Inc.	656,309656,309	$20M	1.29%	ADD 99%
23	Hudson Bay Capital Management LP	633,174633,174	$19M	1.25%	ADD 65%
24	JANUS HENDERSON GROUP PLC	594,712594,712	$18M	1.17%	ADD 31%
25	PRINCIPAL FINANCIAL GROUP INC	519,130519,130	$16M	1.02%	TRIM -21%
26	ACADIAN ASSET MANAGEMENT LLC	501,091501,091	$15M	0.99%	ADD 9%
27	Frazier Life Sciences Management, L.P.	484,782484,782	$15M	0.96%	ADD 26%
28	MASSACHUSETTS FINANCIAL SERVICES CO /MA/	407,373407,373	$12M	0.80%	—
29	D. E. Shaw & Co., Inc.	335,191335,191	$10M	0.66%	ADD 82%
30	MORGAN STANLEY	323,606323,606	$10M	0.64%	ADD 13%
31	Woodline Partners LP	316,762316,762	$10M	0.62%	—
32	Candriam S.C.A.	269,729269,729	$8M	0.53%	—
33	CANTOR FITZGERALD, L. P.	250,211250,211	$8M	0.49%	NEW
34	CITADEL ADVISORS LLC	230,399230,399	$7M	0.45%	—
35	NEW YORK STATE COMMON RETIREMENT FUND	211,140211,140	$6M	0.42%	—
36	BANK OF AMERICA CORP /DE/	206,866206,866	$6M	0.41%	TRIM -12%
37	JANE STREET GROUP, LLC	204,368204,368	$6M	0.40%	ADD 102%
38	MOORE CAPITAL MANAGEMENT, LP	197,308197,308	$6M	0.39%	NEW
39	DIADEMA PARTNERS LP	193,189193,189	$6M	0.38%	ADD 175%
40	MARSHALL WACE, LLP	180,340180,340	$5M	0.36%	ADD 195%
41	RENAISSANCE TECHNOLOGIES LLC	164,000164,000	$5M	0.32%	ADD 16%
42	Legal & General Group Plc	156,143156,143	$5M	0.31%	ADD 5%
43	TD Asset Management Inc	135,828135,828	$4M	0.27%	TRIM -54%
44	STEMPOINT CAPITAL LP	127,086127,086	$4M	0.25%	NEW
45	GOLDMAN SACHS GROUP INC	119,497119,497	$4M	0.24%	ADD 269%
46	Aberdeen Group plc	116,857116,857	$4M	0.23%	NEW
47	J. Goldman & Co LP	114,749114,749	$3M	0.23%	NEW
48	Balyasny Asset Management L.P.	113,844113,844	$3M	0.22%	NEW
49	LORD, ABBETT & CO. LLC	100,784100,784	$3M	0.20%	NEW
50	Integral Health Asset Management, LLC	100,000100,000	$3M	0.20%	NEW
51	STATE STREET CORP	97,94097,940	$3M	0.19%	ADD 5%
52	XTX Topco Ltd	96,10696,106	$3M	0.19%	ADD 337%
53	BNP PARIBAS ASSET MANAGEMENT Holding S.A.	94,93694,936	$3M	0.19%	—
54	Rhenman & Partners Asset Management AB	85,72485,724	$3M	0.17%	TRIM -44%
55	Catalio Capital Management, LP	84,35284,352	$3M	0.17%	NEW
56	Eschler Asset Management LLP	80,00080,000	$2M	0.16%	—
57	MANUFACTURERS LIFE INSURANCE COMPANY, THE	76,51976,519	$2M	0.15%	TRIM -10%
58	WELLS FARGO & COMPANY/MN	75,47375,473	$2M	0.15%	TRIM -2%
59	HUSSMAN STRATEGIC ADVISORS, INC.	63,00063,000	$2M	0.12%	ADD 50%
60	SEI INVESTMENTS CO	61,26061,260	$2M	0.12%	ADD 22%
61	HighVista Strategies LLC	58,69758,697	$2M	0.12%	ADD 78%
62	Elmind Capital, LP	58,24858,248	$2M	0.11%	—
63	ENVESTNET ASSET MANAGEMENT INC	56,82556,825	$2M	0.11%	ADD 3%
64	Persistent Asset Partners Ltd	48,96248,962	$1M	0.10%	ADD 75%
65	Hennion & Walsh Asset Management, Inc.	47,12747,127	$1M	0.09%	TRIM -3%
66	Eagle Health Investments LP	46,30046,300	$1M	0.09%	—
67	ROYAL BANK OF CANADA	44,71444,714	$1M	0.09%	ADD 5%
68	GEODE CAPITAL MANAGEMENT, LLC	42,88242,882	$1M	0.08%	—
69	UBS Group AG	42,13442,134	$1M	0.08%	ADD 484%
70	SCHRODER INVESTMENT MANAGEMENT GROUP	42,92042,920	$1M	0.08%	TRIM -61%
71	ALPS ADVISORS INC	41,26141,261	$1M	0.08%	—
72	ExodusPoint Capital Management, LP	40,27940,279	$1M	0.08%	NEW
73	Eversept Partners, LP	39,23839,238	$1M	0.08%	NEW
74	Jump Financial, LLC	38,49838,498	$1M	0.08%	TRIM -37%
75	Crossmark Global Holdings, Inc.	36,45736,457	$1M	0.07%	—
76	Y-Intercept (Hong Kong) Ltd	34,92734,927	$1M	0.07%	TRIM -28%
77	COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS	31,67431,674	$954,971	0.06%	ADD 287%
78	PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO	31,25331,253	$942,278	0.06%	ADD 24%
79	BARCLAYS PLC	30,90930,909	$931,906	0.06%	TRIM -70%
80	Tidal Investments LLC	30,65130,651	$924,128	0.06%	NEW
81	ASSETMARK, INC	28,38728,387	$855,868	0.06%	TRIM -10%
82	State of New Jersey Common Pension Fund D	27,66327,663	$834,039	0.05%	—
83	Virtus Investment Advisers, LLC	22,94022,940	$691,641	0.05%	ADD 24%
84	HRT FINANCIAL LP	22,86122,861	$689,000	0.05%	TRIM -30%
85	Trexquant Investment LP	20,68520,685	$623,653	0.04%	NEW
86	Orion Porfolio Solutions, LLC	20,52420,524	$618,811	0.04%	TRIM -7%
87	VOLORIDGE INVESTMENT MANAGEMENT, LLC	19,49219,492	$587,684	0.04%	TRIM -31%
88	Quadrature Capital Ltd	19,25419,254	$580,508	0.04%	TRIM -50%
89	Bridgewater Associates, LP	18,93018,930	$570,740	0.04%	ADD 90%
90	BNP PARIBAS FINANCIAL MARKETS	16,93616,936	$510,620	0.03%	TRIM -16%
91	Brevan Howard Capital Management LP	16,42016,420	$481,763	0.03%	NEW
92	Squarepoint Ops LLC	15,43415,434	$465,335	0.03%	—
93	PSP Research LLC	15,14115,141	$456,501	0.03%	ADD 5%
94	Engineers Gate Manager LP	13,89213,892	$418,844	0.03%	NEW
95	STIFEL FINANCIAL CORP	11,22211,222	$338,349	0.02%	TRIM -4%
96	China Universal Asset Management Co., Ltd.	10,78310,783	$325,107	0.02%	TRIM -29%
97	TrinityBridge Ltd	10,10010,100	$304,000	0.02%	NEW
98	Entropy Technologies, LP	10,02010,020	$302,103	0.02%	NEW
99	SUSQUEHANNA INTERNATIONAL GROUP, LLP	8,6228,622	$259,953	0.02%	TRIM -75%
100	Federation des caisses Desjardins du Quebec	8,3128,312	$251,243	0.02%	ADD 52%

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.

Buyers & sellers2026-Q1 vs 2025-Q4 · 74 bought / 74 sold · net +33,785 shares · 0.0d of ADV

Bought74 filers

Shares: 8,609,391
Value: $260M
Opened: 23 · 1,396,628 sh
Days of ADV: 12.2d

Sold74 filers

Shares: 8,575,606
Value: $259M
Closed: 30 · 765,738 sh
Days of ADV: 12.1d

Net (all filers) +33,785 sh · $1M · 0.1% of the prior register

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

RTW INVESTMENTS, LP

4.9M

$147M

FMR LLC

4.8M

4.9M

4.4M

4.5M

4.8M

$146M

WELLINGTON MANAGEMENT GROUP LLP

6.6M

6.1M

4.2M

4.8M

4.7M

$142M

PRIMECAP MANAGEMENT CO/CA/

2.7M

3.8M

4.0M

3.7M

$111M

Bellevue Group AG

1.2M

2.4M

2.8M

$84M

Vestal Point Capital, LP

—

585K

2.8M

$83M

TANG CAPITAL MANAGEMENT LLC

1.6M

1.9M

2.1M

2.3M

2.6M

$80M

Deep Track Capital, LP

519K

1.4M

1.8M

2.0M

1.9M

$58M

T. Rowe Price Investment Management, Inc.

6.7M

7.1M

6.8M

1.9M

$57M

Logos Global Management LP

—

575K

850K

1.5M

$45M

BVF INC/IL

—

1.0M

1.6M

1.5M

1.3M

$39M

MILLENNIUM MANAGEMENT LLC

573K

285K

277K

1.3M

912K

1.2M

$37M

ARMISTICE CAPITAL, LLC

1.2M

978K

678K

824K

1.1M

1.2M

$36M

Point72 Asset Management, L.P.

403K

628K

820K

536K

504K

1.1M

$33M

Fiera Capital Corp

780K

805K

813K

795K

1.0M

1.1M

$33M

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 divides each quarter's as-filed 13F shares by the SEC cover-page share count dated to that same quarter (split-adjusted), not by today's count — so splits and buybacks don't move the line.

Quarter

Holders

Shares held

% shares out

Value held

2026-Q1

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.

▸Register gapwho owns your peers and not you

13F

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

142 holders

% of shares outstanding held

103.5%

Shares held (13F)

52,457,286

Reporting holders

142

Active share of register98.2%136 active filers

Index / screened out1.8%6 filers

Reporting holders1422026-Q1

Top-10 concentration60.3%

HHI0.0469

Effective holders21.3

Crowding percentile22.8of 785 same-size names

Top holders

largest 100 of 142 · Δ vs 2025-Q4

#	Holder	Shares	Value	% of shares out	Δ QoQ
1	RTW INVESTMENTS, LP	4,869,7984.9M	$147M	9.61%	—
2	FMR LLC	4,829,1544.8M	$146M	9.53%	ADD 6%
3	WELLINGTON MANAGEMENT GROUP LLP	4,706,1684.7M	$142M	9.28%	—
4	PRIMECAP MANAGEMENT CO/CA/	3,693,2413.7M	$111M	7.29%	TRIM -7%
5	Bellevue Group AG	2,796,8032.8M	$84M	5.52%	—
6	Vestal Point Capital, LP	2,766,8682.8M	$83M	5.46%	ADD 373%
7	TANG CAPITAL MANAGEMENT LLC	2,649,3682.6M	$80M	5.23%	—
8	Deep Track Capital, LP	1,931,8841.9M	$58M	3.81%	TRIM -4%
9	T. Rowe Price Investment Management, Inc.	1,891,6001.9M	$57M	3.73%	TRIM -72%
10	Logos Global Management LP	1,500,0001.5M	$45M	2.96%	ADD 76%
11	BVF INC/IL	1,294,4631.3M	$39M	2.55%	TRIM -13%
12	MILLENNIUM MANAGEMENT LLC	1,237,4031.2M	$37M	2.44%	ADD 36%
13	ARMISTICE CAPITAL, LLC	1,188,0001.2M	$36M	2.34%	ADD 8%
14	Point72 Asset Management, L.P.	1,102,2711.1M	$33M	2.17%	ADD 119%
15	Fiera Capital Corp	1,080,0991.1M	$33M	2.13%	ADD 3%
16	TWO SIGMA INVESTMENTS, LP	1,021,2651.0M	$31M	2.01%	ADD 184%
17	PRICE T ROWE ASSOCIATES INC /MD/	919,332919,332	$28M	1.81%	TRIM -5%
18	Kynam Capital Management, LP	884,937884,937	$27M	1.75%	ADD 3%
19	BAKER BROS. ADVISORS LP	734,397734,397	$22M	1.45%	TRIM -68%
20	Trails Edge Capital Partners, LP	682,597682,597	$21M	1.35%	—
21	Caption Management, LLC	661,786661,786	$20M	1.31%	ADD 601%
22	BlackRock, Inc.	656,309656,309	$20M	1.29%	ADD 99%
23	Hudson Bay Capital Management LP	633,174633,174	$19M	1.25%	ADD 65%
24	JANUS HENDERSON GROUP PLC	594,712594,712	$18M	1.17%	ADD 31%
25	PRINCIPAL FINANCIAL GROUP INC	519,130519,130	$16M	1.02%	TRIM -21%
26	ACADIAN ASSET MANAGEMENT LLC	501,091501,091	$15M	0.99%	ADD 9%
27	Frazier Life Sciences Management, L.P.	484,782484,782	$15M	0.96%	ADD 26%
28	MASSACHUSETTS FINANCIAL SERVICES CO /MA/	407,373407,373	$12M	0.80%	—
29	D. E. Shaw & Co., Inc.	335,191335,191	$10M	0.66%	ADD 82%
30	MORGAN STANLEY	323,606323,606	$10M	0.64%	ADD 13%
31	Woodline Partners LP	316,762316,762	$10M	0.62%	—
32	Candriam S.C.A.	269,729269,729	$8M	0.53%	—
33	CANTOR FITZGERALD, L. P.	250,211250,211	$8M	0.49%	NEW
34	CITADEL ADVISORS LLC	230,399230,399	$7M	0.45%	—
35	NEW YORK STATE COMMON RETIREMENT FUND	211,140211,140	$6M	0.42%	—
36	BANK OF AMERICA CORP /DE/	206,866206,866	$6M	0.41%	TRIM -12%
37	JANE STREET GROUP, LLC	204,368204,368	$6M	0.40%	ADD 102%
38	MOORE CAPITAL MANAGEMENT, LP	197,308197,308	$6M	0.39%	NEW
39	DIADEMA PARTNERS LP	193,189193,189	$6M	0.38%	ADD 175%
40	MARSHALL WACE, LLP	180,340180,340	$5M	0.36%	ADD 195%
41	RENAISSANCE TECHNOLOGIES LLC	164,000164,000	$5M	0.32%	ADD 16%
42	Legal & General Group Plc	156,143156,143	$5M	0.31%	ADD 5%
43	TD Asset Management Inc	135,828135,828	$4M	0.27%	TRIM -54%
44	STEMPOINT CAPITAL LP	127,086127,086	$4M	0.25%	NEW
45	GOLDMAN SACHS GROUP INC	119,497119,497	$4M	0.24%	ADD 269%
46	Aberdeen Group plc	116,857116,857	$4M	0.23%	NEW
47	J. Goldman & Co LP	114,749114,749	$3M	0.23%	NEW
48	Balyasny Asset Management L.P.	113,844113,844	$3M	0.22%	NEW
49	LORD, ABBETT & CO. LLC	100,784100,784	$3M	0.20%	NEW
50	Integral Health Asset Management, LLC	100,000100,000	$3M	0.20%	NEW
51	STATE STREET CORP	97,94097,940	$3M	0.19%	ADD 5%
52	XTX Topco Ltd	96,10696,106	$3M	0.19%	ADD 337%
53	BNP PARIBAS ASSET MANAGEMENT Holding S.A.	94,93694,936	$3M	0.19%	—
54	Rhenman & Partners Asset Management AB	85,72485,724	$3M	0.17%	TRIM -44%
55	Catalio Capital Management, LP	84,35284,352	$3M	0.17%	NEW
56	Eschler Asset Management LLP	80,00080,000	$2M	0.16%	—
57	MANUFACTURERS LIFE INSURANCE COMPANY, THE	76,51976,519	$2M	0.15%	TRIM -10%
58	WELLS FARGO & COMPANY/MN	75,47375,473	$2M	0.15%	TRIM -2%
59	HUSSMAN STRATEGIC ADVISORS, INC.	63,00063,000	$2M	0.12%	ADD 50%
60	SEI INVESTMENTS CO	61,26061,260	$2M	0.12%	ADD 22%
61	HighVista Strategies LLC	58,69758,697	$2M	0.12%	ADD 78%
62	Elmind Capital, LP	58,24858,248	$2M	0.11%	—
63	ENVESTNET ASSET MANAGEMENT INC	56,82556,825	$2M	0.11%	ADD 3%
64	Persistent Asset Partners Ltd	48,96248,962	$1M	0.10%	ADD 75%
65	Hennion & Walsh Asset Management, Inc.	47,12747,127	$1M	0.09%	TRIM -3%
66	Eagle Health Investments LP	46,30046,300	$1M	0.09%	—
67	ROYAL BANK OF CANADA	44,71444,714	$1M	0.09%	ADD 5%
68	GEODE CAPITAL MANAGEMENT, LLC	42,88242,882	$1M	0.08%	—
69	UBS Group AG	42,13442,134	$1M	0.08%	ADD 484%
70	SCHRODER INVESTMENT MANAGEMENT GROUP	42,92042,920	$1M	0.08%	TRIM -61%
71	ALPS ADVISORS INC	41,26141,261	$1M	0.08%	—
72	ExodusPoint Capital Management, LP	40,27940,279	$1M	0.08%	NEW
73	Eversept Partners, LP	39,23839,238	$1M	0.08%	NEW
74	Jump Financial, LLC	38,49838,498	$1M	0.08%	TRIM -37%
75	Crossmark Global Holdings, Inc.	36,45736,457	$1M	0.07%	—
76	Y-Intercept (Hong Kong) Ltd	34,92734,927	$1M	0.07%	TRIM -28%
77	COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS	31,67431,674	$954,971	0.06%	ADD 287%
78	PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO	31,25331,253	$942,278	0.06%	ADD 24%
79	BARCLAYS PLC	30,90930,909	$931,906	0.06%	TRIM -70%
80	Tidal Investments LLC	30,65130,651	$924,128	0.06%	NEW
81	ASSETMARK, INC	28,38728,387	$855,868	0.06%	TRIM -10%
82	State of New Jersey Common Pension Fund D	27,66327,663	$834,039	0.05%	—
83	Virtus Investment Advisers, LLC	22,94022,940	$691,641	0.05%	ADD 24%
84	HRT FINANCIAL LP	22,86122,861	$689,000	0.05%	TRIM -30%
85	Trexquant Investment LP	20,68520,685	$623,653	0.04%	NEW
86	Orion Porfolio Solutions, LLC	20,52420,524	$618,811	0.04%	TRIM -7%
87	VOLORIDGE INVESTMENT MANAGEMENT, LLC	19,49219,492	$587,684	0.04%	TRIM -31%
88	Quadrature Capital Ltd	19,25419,254	$580,508	0.04%	TRIM -50%
89	Bridgewater Associates, LP	18,93018,930	$570,740	0.04%	ADD 90%
90	BNP PARIBAS FINANCIAL MARKETS	16,93616,936	$510,620	0.03%	TRIM -16%
91	Brevan Howard Capital Management LP	16,42016,420	$481,763	0.03%	NEW
92	Squarepoint Ops LLC	15,43415,434	$465,335	0.03%	—
93	PSP Research LLC	15,14115,141	$456,501	0.03%	ADD 5%
94	Engineers Gate Manager LP	13,89213,892	$418,844	0.03%	NEW
95	STIFEL FINANCIAL CORP	11,22211,222	$338,349	0.02%	TRIM -4%
96	China Universal Asset Management Co., Ltd.	10,78310,783	$325,107	0.02%	TRIM -29%
97	TrinityBridge Ltd	10,10010,100	$304,000	0.02%	NEW
98	Entropy Technologies, LP	10,02010,020	$302,103	0.02%	NEW
99	SUSQUEHANNA INTERNATIONAL GROUP, LLP	8,6228,622	$259,953	0.02%	TRIM -75%
100	Federation des caisses Desjardins du Quebec	8,3128,312	$251,243	0.02%	ADD 52%

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.

Buyers & sellers2026-Q1 vs 2025-Q4 · 74 bought / 74 sold · net +33,785 shares · 0.0d of ADV

Bought74 filers

Shares: 8,609,391
Value: $260M
Opened: 23 · 1,396,628 sh
Days of ADV: 12.2d

Sold74 filers

Shares: 8,575,606
Value: $259M
Closed: 30 · 765,738 sh
Days of ADV: 12.1d

Net (all filers) +33,785 sh · $1M · 0.1% of the prior register

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

RTW INVESTMENTS, LP

4.9M

$147M

FMR LLC

4.8M

4.9M

4.4M

4.5M

4.8M

$146M

WELLINGTON MANAGEMENT GROUP LLP

6.6M

6.1M

4.2M

4.8M

4.7M

$142M

PRIMECAP MANAGEMENT CO/CA/

2.7M

3.8M

4.0M

3.7M

$111M

Bellevue Group AG

1.2M

2.4M

2.8M

$84M

Vestal Point Capital, LP

—

585K

2.8M

$83M

TANG CAPITAL MANAGEMENT LLC

1.6M

1.9M

2.1M

2.3M

2.6M

$80M

Deep Track Capital, LP

519K

1.4M

1.8M

2.0M

1.9M

$58M

T. Rowe Price Investment Management, Inc.

6.7M

7.1M

6.8M

1.9M

$57M

Logos Global Management LP

—

575K

850K

1.5M

$45M

BVF INC/IL

—

1.0M

1.6M

1.5M

1.3M

$39M

MILLENNIUM MANAGEMENT LLC

573K

285K

277K

1.3M

912K

1.2M

$37M

ARMISTICE CAPITAL, LLC

1.2M

978K

678K

824K

1.1M

1.2M

$36M

Point72 Asset Management, L.P.

403K

628K

820K

536K

504K

1.1M

$33M

Fiera Capital Corp

780K

805K

813K

795K

1.0M

1.1M

$33M

Institutional footprint by quarter

Quarter

Holders

Shares held

% shares out

Value held

2026-Q1

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13F

IMCR US Equity☆

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

Top holders

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

Institutional footprint by quarter

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

Top holders

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

Institutional footprint by quarter

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IMCR US Equity