PLAB US Equity

PHOTRONICS INC

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Information Technology · Semiconductors & Related Devices · CIK 810136 · FYE 1031

$29.15

-0.63 (-2.12%)

USD · as of 2026-07-28 · marketstack

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

329 holders

% of shares outstanding held

94.4%

Shares held (13F)

55,658,473

Reporting holders

329

Top holders

largest 100 of 329 · Δ vs 2025-Q4

#	Holder	Shares	Value	% of shares out	Δ QoQ
1	BlackRock, Inc.	9,387,0609.4M	$379M	15.92%	ADD 6%
2	DIMENSIONAL FUND ADVISORS LP	3,962,6654.0M	$160M	6.72%	TRIM -2%
3	LSV ASSET MANAGEMENT	2,882,5182.9M	$116M	4.89%	—
4	VANGUARD PORTFOLIO MANAGEMENT LLC	2,844,7372.8M	$115M	4.82%	NEW†
5	AMERICAN CENTURY COMPANIES INC	2,819,9272.8M	$114M	4.78%	ADD 15%
6	VANGUARD CAPITAL MANAGEMENT LLC	2,503,0912.5M	$101M	4.25%	NEW†
7	STATE STREET CORP	2,239,7702.2M	$91M	3.80%	—
8	VICTORY CAPITAL MANAGEMENT INC	1,938,6271.9M	$78M	3.29%	TRIM -10%
9	GEODE CAPITAL MANAGEMENT, LLC	1,854,6031.9M	$75M	3.15%	—
10	Invesco Ltd.	1,427,5181.4M	$58M	2.42%	TRIM -7%
11	VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P.	1,185,4051.2M	$48M	2.01%	NEW†
12	MORGAN STANLEY	1,026,0361.0M	$41M	1.74%	TRIM -27%
13	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	1,004,8991.0M	$41M	1.70%	—
14	PRICE T ROWE ASSOCIATES INC /MD/	902,943902,943	$36M	1.53%	—
15	NORTHERN TRUST CORP	851,334851,334	$34M	1.44%	ADD 2%
16	JANUS HENDERSON GROUP PLC	823,488823,488	$33M	1.40%	ADD 33%
17	Boston Partners	785,239785,239	$32M	1.33%	TRIM -3%
18	NEEDHAM INVESTMENT MANAGEMENT LLC	605,000605,000	$24M	1.03%	TRIM -22%
19	Qube Research & Technologies Ltd	548,065548,065	$22M	0.93%	ADD 90%
20	Polar Capital Holdings Plc	513,451513,451	$21M	0.87%	NEW
21	AQR CAPITAL MANAGEMENT LLC	486,354486,354	$20M	0.82%	ADD 24%
22	Clark Capital Management Group, Inc.	406,102406,102	$16M	0.69%	ADD 50%
23	EASTERLY INVESTMENT PARTNERS LLC	403,698403,698	$16M	0.68%	TRIM -4%
24	VANGUARD FIDUCIARY TRUST CO	378,648378,648	$15M	0.64%	NEW
25	Bank of New York Mellon Corp	378,115378,115	$15M	0.64%	TRIM -3%
26	ROYCE & ASSOCIATES LP	373,633373,633	$15M	0.63%	TRIM -3%
27	HEARTLAND ADVISORS INC	370,675370,675	$15M	0.63%	TRIM -4%
28	Allianz Asset Management GmbH	369,478369,478	$15M	0.63%	ADD 213%
29	BRIDGEWAY CAPITAL MANAGEMENT, LLC	362,834362,834	$15M	0.62%	—
30	HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC	351,709351,709	$14M	0.60%	TRIM -34%
31	PRINCIPAL FINANCIAL GROUP INC	334,680334,680	$14M	0.57%	TRIM -8%
32	TCW GROUP INC	319,520319,520	$13M	0.54%	—
33	GOLDMAN SACHS GROUP INC	301,797301,797	$12M	0.51%	TRIM -33%
34	Nuveen, LLC	291,494291,494	$12M	0.49%	ADD 127%
35	Empowered Funds, LLC	290,142290,142	$12M	0.49%	NEW
36	Universal- Beteiligungs- und Servicegesellschaft mbH	289,374289,374	$12M	0.49%	—
37	PRUDENTIAL FINANCIAL INC	266,276266,276	$11M	0.45%	ADD 121%
38	UBS Group AG	252,433252,433	$10M	0.43%	ADD 76%
39	Cambria Investment Management, L.P.	234,433234,433	$9M	0.40%	TRIM -3%
40	MEEDER ASSET MANAGEMENT INC	220,614220,614	$9M	0.37%	TRIM -22%
41	Public Sector Pension Investment Board	211,337211,337	$9M	0.36%	ADD 3%
42	JPMORGAN CHASE & CO	227,606227,606	$8M	0.39%	ADD 3%
43	CITIGROUP INC	201,553201,553	$8M	0.34%	—
44	KESTREL INVESTMENT MANAGEMENT CORP	200,450200,450	$8M	0.34%	—
45	D. E. Shaw & Co., Inc.	191,800191,800	$8M	0.33%	ADD 2%
46	RHUMBLINE ADVISERS	166,185166,185	$7M	0.28%	—
47	Allspring Global Investments Holdings, LLC	159,484159,484	$7M	0.27%	ADD 829%
48	VOYA INVESTMENT MANAGEMENT LLC	148,202148,202	$6M	0.25%	TRIM -5%
49	Legal & General Group Plc	143,612143,612	$6M	0.24%	TRIM -3%
50	O'SHAUGHNESSY ASSET MANAGEMENT, LLC	135,728135,728	$5M	0.23%	TRIM -5%
51	AMERIPRISE FINANCIAL INC	134,548134,548	$5M	0.23%	TRIM -22%
52	DENALI ADVISORS LLC	128,553128,553	$5M	0.22%	TRIM -59%
53	STATE OF WISCONSIN INVESTMENT BOARD	127,236127,236	$5M	0.22%	ADD 56%
54	SEI INVESTMENTS CO	127,208127,208	$5M	0.22%	ADD 112%
55	FIRST TRUST ADVISORS LP	126,414126,414	$5M	0.21%	TRIM -33%
56	BESSEMER GROUP INC	121,035121,035	$5M	0.21%	—
57	ROYAL BANK OF CANADA	120,745120,745	$5M	0.20%	—
58	LAZARD ASSET MANAGEMENT LLC	117,365117,365	$5M	0.20%	NEW
59	Swiss National Bank	116,600116,600	$5M	0.20%	—
60	THOMPSON SIEGEL & WALMSLEY LLC	111,141111,141	$4M	0.19%	TRIM -35%
61	BANK OF AMERICA CORP /DE/	111,130111,130	$4M	0.19%	TRIM -28%
62	Creative Planning	101,097101,097	$4M	0.17%	ADD 114%
63	Decker Retirement Planning Inc.	97,38597,385	$4M	0.17%	NEW
64	Penbrook Management LLC	96,73096,730	$4M	0.16%	TRIM -13%
65	JTC Employer Solutions Trustee Ltd	191,856191,856	$4M	0.33%	—
66	NATIXIS ADVISORS, LLC	95,66695,666	$4M	0.16%	NEW
67	Cresset Asset Management, LLC	92,15992,159	$4M	0.16%	ADD 3%
68	ISTHMUS PARTNERS, LLC	91,61391,613	$4M	0.16%	ADD 9%
69	Phocas Financial Corp.	90,21390,213	$4M	0.15%	NEW
70	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	89,41589,415	$4M	0.15%	ADD 4%
71	MARTINGALE ASSET MANAGEMENT L P	87,16587,165	$4M	0.15%	TRIM -22%
72	FEDERATED HERMES, INC.	86,88186,881	$4M	0.15%	NEW
73	NOMURA ASSET MANAGEMENT INTERNATIONAL INC.	82,76782,767	$3M	0.14%	—
74	MASSACHUSETTS FINANCIAL SERVICES CO /MA/	82,56882,568	$3M	0.14%	TRIM -3%
75	Skylands Capital, LLC	82,05082,050	$3M	0.14%	TRIM -10%
76	New Age Alpha Advisors, LLC	81,57781,577	$3M	0.14%	TRIM -4%
77	Mill Road Capital Management LLC	80,20080,200	$3M	0.14%	—
78	STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM	79,63779,637	$3M	0.14%	—
79	Uncommon Cents Investing LLC	78,90078,900	$3M	0.13%	—
80	INTECH INVESTMENT MANAGEMENT LLC	78,67578,675	$3M	0.13%	ADD 215%
81	Linden Thomas Advisory Services, LLC	77,68077,680	$3M	0.13%	—
82	TWO SIGMA INVESTMENTS, LP	77,53777,537	$3M	0.13%	—
83	WEDGE CAPITAL MANAGEMENT L L P/NC	76,08376,083	$3M	0.13%	TRIM -7%
84	Inspire Advisors, LLC	75,06675,066	$3M	0.13%	NEW
85	Man Group plc	74,17574,175	$3M	0.13%	ADD 22%
86	Robeco Institutional Asset Management B.V.	73,77673,776	$3M	0.13%	—
87	NEW YORK STATE COMMON RETIREMENT FUND	69,81269,812	$3M	0.12%	TRIM -38%
88	CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	69,48469,484	$3M	0.12%	ADD 24%
89	NorthCrest Asset Manangement, LLC	68,04368,043	$3M	0.12%	—
90	ALGERT GLOBAL LLC	67,91067,910	$3M	0.12%	TRIM -12%
91	ENVESTNET ASSET MANAGEMENT INC	67,12167,121	$3M	0.11%	ADD 15%
92	FRANKLIN RESOURCES INC	64,39464,394	$3M	0.11%	—
93	SEGALL BRYANT & HAMILL, LLC	62,36262,362	$3M	0.11%	—
94	Inspire Investing, LLC	60,23860,238	$2M	0.10%	ADD 15%
95	Rockefeller Capital Management L.P.	52,11652,116	$2M	0.09%	ADD 8901%
96	Pacific Ridge Capital Partners, LLC	51,64151,641	$2M	0.09%	TRIM -7%
97	DEUTSCHE BANK AG\	51,33351,333	$2M	0.09%	ADD 25%
98	Oak Harvest Investment Services	50,00050,000	$2M	0.08%	ADD 67%
99	Holocene Advisors, LP	49,45049,450	$2M	0.08%	NEW
100	CANADA LIFE ASSURANCE Co	47,33747,337	$2M	0.08%	TRIM -8%

† 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

BlackRock, Inc.

10.3M

9.7M

9.4M

8.8M

9.4M

$379M

DIMENSIONAL FUND ADVISORS LP

4.5M

4.3M

4.1M

4.0M

$160M

LSV ASSET MANAGEMENT

2.1M

2.2M

2.6M

2.5M

2.9M

$116M

VANGUARD PORTFOLIO MANAGEMENT LLC

—

2.8M

$115M

AMERICAN CENTURY COMPANIES INC

2.0M

2.2M

2.3M

2.4M

2.5M

2.8M

$114M

VANGUARD CAPITAL MANAGEMENT LLC

—

2.5M

$101M

STATE STREET CORP

2.5M

2.3M

2.2M

$91M

VICTORY CAPITAL MANAGEMENT INC

199K

276K

289K

2.3M

2.1M

1.9M

$78M

GEODE CAPITAL MANAGEMENT, LLC

1.8M

1.9M

1.8M

1.9M

$75M

Invesco Ltd.

1.1M

1.3M

1.2M

310K

1.5M

1.4M

$58M

VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P.

—

1.2M

$48M

MORGAN STANLEY

1.2M

1.3M

1.4M

1.0M

$41M

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

1.0M

990K

1.0M

$41M

PRICE T ROWE ASSOCIATES INC /MD/

1.0M

917K

903K

$36M

NORTHERN TRUST CORP

1.0M

937K

892K

834K

851K

$34M

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	329	55,658,473	94.4%	$2.2B
2025-Q4

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 · PLAB

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

Holder	% of class	Type	As of
BlackRock, Inc.	15%	QII	2025-03-31	SEC →
DIMENSIONAL FUND ADVISORS LP	6.2%	QII	2026-06-30	SEC →
VANGUARD GROUP INC	0%	QII	2026-03-13	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 PLAB · 2026-Q1 methodology → sources →

329 holders

% of shares outstanding held

94.4%

Shares held (13F)

55,658,473

Reporting holders

329

Top holders

largest 100 of 329 · Δ vs 2025-Q4

#	Holder	Shares	Value	% of shares out	Δ QoQ
1	BlackRock, Inc.	9,387,0609.4M	$379M	15.92%	ADD 6%
2	DIMENSIONAL FUND ADVISORS LP	3,962,6654.0M	$160M	6.72%	TRIM -2%
3	LSV ASSET MANAGEMENT	2,882,5182.9M	$116M	4.89%	—
4	VANGUARD PORTFOLIO MANAGEMENT LLC	2,844,7372.8M	$115M	4.82%	NEW†
5	AMERICAN CENTURY COMPANIES INC	2,819,9272.8M	$114M	4.78%	ADD 15%
6	VANGUARD CAPITAL MANAGEMENT LLC	2,503,0912.5M	$101M	4.25%	NEW†
7	STATE STREET CORP	2,239,7702.2M	$91M	3.80%	—
8	VICTORY CAPITAL MANAGEMENT INC	1,938,6271.9M	$78M	3.29%	TRIM -10%
9	GEODE CAPITAL MANAGEMENT, LLC	1,854,6031.9M	$75M	3.15%	—
10	Invesco Ltd.	1,427,5181.4M	$58M	2.42%	TRIM -7%
11	VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P.	1,185,4051.2M	$48M	2.01%	NEW†
12	MORGAN STANLEY	1,026,0361.0M	$41M	1.74%	TRIM -27%
13	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	1,004,8991.0M	$41M	1.70%	—
14	PRICE T ROWE ASSOCIATES INC /MD/	902,943902,943	$36M	1.53%	—
15	NORTHERN TRUST CORP	851,334851,334	$34M	1.44%	ADD 2%
16	JANUS HENDERSON GROUP PLC	823,488823,488	$33M	1.40%	ADD 33%
17	Boston Partners	785,239785,239	$32M	1.33%	TRIM -3%
18	NEEDHAM INVESTMENT MANAGEMENT LLC	605,000605,000	$24M	1.03%	TRIM -22%
19	Qube Research & Technologies Ltd	548,065548,065	$22M	0.93%	ADD 90%
20	Polar Capital Holdings Plc	513,451513,451	$21M	0.87%	NEW
21	AQR CAPITAL MANAGEMENT LLC	486,354486,354	$20M	0.82%	ADD 24%
22	Clark Capital Management Group, Inc.	406,102406,102	$16M	0.69%	ADD 50%
23	EASTERLY INVESTMENT PARTNERS LLC	403,698403,698	$16M	0.68%	TRIM -4%
24	VANGUARD FIDUCIARY TRUST CO	378,648378,648	$15M	0.64%	NEW
25	Bank of New York Mellon Corp	378,115378,115	$15M	0.64%	TRIM -3%
26	ROYCE & ASSOCIATES LP	373,633373,633	$15M	0.63%	TRIM -3%
27	HEARTLAND ADVISORS INC	370,675370,675	$15M	0.63%	TRIM -4%
28	Allianz Asset Management GmbH	369,478369,478	$15M	0.63%	ADD 213%
29	BRIDGEWAY CAPITAL MANAGEMENT, LLC	362,834362,834	$15M	0.62%	—
30	HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC	351,709351,709	$14M	0.60%	TRIM -34%
31	PRINCIPAL FINANCIAL GROUP INC	334,680334,680	$14M	0.57%	TRIM -8%
32	TCW GROUP INC	319,520319,520	$13M	0.54%	—
33	GOLDMAN SACHS GROUP INC	301,797301,797	$12M	0.51%	TRIM -33%
34	Nuveen, LLC	291,494291,494	$12M	0.49%	ADD 127%
35	Empowered Funds, LLC	290,142290,142	$12M	0.49%	NEW
36	Universal- Beteiligungs- und Servicegesellschaft mbH	289,374289,374	$12M	0.49%	—
37	PRUDENTIAL FINANCIAL INC	266,276266,276	$11M	0.45%	ADD 121%
38	UBS Group AG	252,433252,433	$10M	0.43%	ADD 76%
39	Cambria Investment Management, L.P.	234,433234,433	$9M	0.40%	TRIM -3%
40	MEEDER ASSET MANAGEMENT INC	220,614220,614	$9M	0.37%	TRIM -22%
41	Public Sector Pension Investment Board	211,337211,337	$9M	0.36%	ADD 3%
42	JPMORGAN CHASE & CO	227,606227,606	$8M	0.39%	ADD 3%
43	CITIGROUP INC	201,553201,553	$8M	0.34%	—
44	KESTREL INVESTMENT MANAGEMENT CORP	200,450200,450	$8M	0.34%	—
45	D. E. Shaw & Co., Inc.	191,800191,800	$8M	0.33%	ADD 2%
46	RHUMBLINE ADVISERS	166,185166,185	$7M	0.28%	—
47	Allspring Global Investments Holdings, LLC	159,484159,484	$7M	0.27%	ADD 829%
48	VOYA INVESTMENT MANAGEMENT LLC	148,202148,202	$6M	0.25%	TRIM -5%
49	Legal & General Group Plc	143,612143,612	$6M	0.24%	TRIM -3%
50	O'SHAUGHNESSY ASSET MANAGEMENT, LLC	135,728135,728	$5M	0.23%	TRIM -5%
51	AMERIPRISE FINANCIAL INC	134,548134,548	$5M	0.23%	TRIM -22%
52	DENALI ADVISORS LLC	128,553128,553	$5M	0.22%	TRIM -59%
53	STATE OF WISCONSIN INVESTMENT BOARD	127,236127,236	$5M	0.22%	ADD 56%
54	SEI INVESTMENTS CO	127,208127,208	$5M	0.22%	ADD 112%
55	FIRST TRUST ADVISORS LP	126,414126,414	$5M	0.21%	TRIM -33%
56	BESSEMER GROUP INC	121,035121,035	$5M	0.21%	—
57	ROYAL BANK OF CANADA	120,745120,745	$5M	0.20%	—
58	LAZARD ASSET MANAGEMENT LLC	117,365117,365	$5M	0.20%	NEW
59	Swiss National Bank	116,600116,600	$5M	0.20%	—
60	THOMPSON SIEGEL & WALMSLEY LLC	111,141111,141	$4M	0.19%	TRIM -35%
61	BANK OF AMERICA CORP /DE/	111,130111,130	$4M	0.19%	TRIM -28%
62	Creative Planning	101,097101,097	$4M	0.17%	ADD 114%
63	Decker Retirement Planning Inc.	97,38597,385	$4M	0.17%	NEW
64	Penbrook Management LLC	96,73096,730	$4M	0.16%	TRIM -13%
65	JTC Employer Solutions Trustee Ltd	191,856191,856	$4M	0.33%	—
66	NATIXIS ADVISORS, LLC	95,66695,666	$4M	0.16%	NEW
67	Cresset Asset Management, LLC	92,15992,159	$4M	0.16%	ADD 3%
68	ISTHMUS PARTNERS, LLC	91,61391,613	$4M	0.16%	ADD 9%
69	Phocas Financial Corp.	90,21390,213	$4M	0.15%	NEW
70	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	89,41589,415	$4M	0.15%	ADD 4%
71	MARTINGALE ASSET MANAGEMENT L P	87,16587,165	$4M	0.15%	TRIM -22%
72	FEDERATED HERMES, INC.	86,88186,881	$4M	0.15%	NEW
73	NOMURA ASSET MANAGEMENT INTERNATIONAL INC.	82,76782,767	$3M	0.14%	—
74	MASSACHUSETTS FINANCIAL SERVICES CO /MA/	82,56882,568	$3M	0.14%	TRIM -3%
75	Skylands Capital, LLC	82,05082,050	$3M	0.14%	TRIM -10%
76	New Age Alpha Advisors, LLC	81,57781,577	$3M	0.14%	TRIM -4%
77	Mill Road Capital Management LLC	80,20080,200	$3M	0.14%	—
78	STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM	79,63779,637	$3M	0.14%	—
79	Uncommon Cents Investing LLC	78,90078,900	$3M	0.13%	—
80	INTECH INVESTMENT MANAGEMENT LLC	78,67578,675	$3M	0.13%	ADD 215%
81	Linden Thomas Advisory Services, LLC	77,68077,680	$3M	0.13%	—
82	TWO SIGMA INVESTMENTS, LP	77,53777,537	$3M	0.13%	—
83	WEDGE CAPITAL MANAGEMENT L L P/NC	76,08376,083	$3M	0.13%	TRIM -7%
84	Inspire Advisors, LLC	75,06675,066	$3M	0.13%	NEW
85	Man Group plc	74,17574,175	$3M	0.13%	ADD 22%
86	Robeco Institutional Asset Management B.V.	73,77673,776	$3M	0.13%	—
87	NEW YORK STATE COMMON RETIREMENT FUND	69,81269,812	$3M	0.12%	TRIM -38%
88	CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	69,48469,484	$3M	0.12%	ADD 24%
89	NorthCrest Asset Manangement, LLC	68,04368,043	$3M	0.12%	—
90	ALGERT GLOBAL LLC	67,91067,910	$3M	0.12%	TRIM -12%
91	ENVESTNET ASSET MANAGEMENT INC	67,12167,121	$3M	0.11%	ADD 15%
92	FRANKLIN RESOURCES INC	64,39464,394	$3M	0.11%	—
93	SEGALL BRYANT & HAMILL, LLC	62,36262,362	$3M	0.11%	—
94	Inspire Investing, LLC	60,23860,238	$2M	0.10%	ADD 15%
95	Rockefeller Capital Management L.P.	52,11652,116	$2M	0.09%	ADD 8901%
96	Pacific Ridge Capital Partners, LLC	51,64151,641	$2M	0.09%	TRIM -7%
97	DEUTSCHE BANK AG\	51,33351,333	$2M	0.09%	ADD 25%
98	Oak Harvest Investment Services	50,00050,000	$2M	0.08%	ADD 67%
99	Holocene Advisors, LP	49,45049,450	$2M	0.08%	NEW
100	CANADA LIFE ASSURANCE Co	47,33747,337	$2M	0.08%	TRIM -8%

† 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

BlackRock, Inc.

10.3M

9.7M

9.4M

8.8M

9.4M

$379M

DIMENSIONAL FUND ADVISORS LP

4.5M

4.3M

4.1M

4.0M

$160M

LSV ASSET MANAGEMENT

2.1M

2.2M

2.6M

2.5M

2.9M

$116M

VANGUARD PORTFOLIO MANAGEMENT LLC

—

2.8M

$115M

AMERICAN CENTURY COMPANIES INC

2.0M

2.2M

2.3M

2.4M

2.5M

2.8M

$114M

VANGUARD CAPITAL MANAGEMENT LLC

—

2.5M

$101M

STATE STREET CORP

2.5M

2.3M

2.2M

$91M

VICTORY CAPITAL MANAGEMENT INC

199K

276K

289K

2.3M

2.1M

1.9M

$78M

GEODE CAPITAL MANAGEMENT, LLC

1.8M

1.9M

1.8M

1.9M

$75M

Invesco Ltd.

1.1M

1.3M

1.2M

310K

1.5M

1.4M

$58M

VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P.

—

1.2M

$48M

MORGAN STANLEY

1.2M

1.3M

1.4M

1.0M

$41M

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

1.0M

990K

1.0M

$41M

PRICE T ROWE ASSOCIATES INC /MD/

1.0M

917K

903K

$36M

NORTHERN TRUST CORP

1.0M

937K

892K

834K

851K

$34M

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	329	55,658,473	94.4%	$2.2B
2025-Q4

Short interest has its own tab now — open SI →

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

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

Holder	% of class	Type	As of
BlackRock, Inc.	15%	QII	2025-03-31	SEC →
DIMENSIONAL FUND ADVISORS LP	6.2%	QII	2026-06-30	SEC →
VANGUARD GROUP INC	0%	QII	2026-03-13	SEC →

PLAB US Equity☆

Institutional ownership· 13F filers holding PLAB · 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 · PLAB

Institutional ownership· 13F filers holding PLAB · 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 · PLAB

PLAB US Equity