BSTZ · BlackRock Science & Technology Term Trust · Holdings

$27.71 +0.18 (+0.65%)

Market Cap

$1.89B

68.74M

Volume · Oct 21 36.02K Avg daily vol (3M) 175.05K

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP → See every holder of BSTZ: 13F, 13D and 13G, insiders and funds →

Institutional holdings are being reconciled with SEC filings. Holder totals and changes may be incomplete until reconciliation finishes.

The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.

Quarter:

Holders: 145

Total Value: $659,598,950

Total Shares: 21,976,261

Showing 1–100 of 145 holdings by value · page 1 of 2

Institutional Ownership Trend

27 quarters

Holder Concentration

Across 151 13F filers

Top Holder

25.9%

of institutional value

Top 5

57.7%

of institutional value

Top 10

74.6%

of institutional value

HHI

1,075

Broadly held

Who Holds BSTZ

Last 8 quarters through Sep 30, 2026 (filing window open)

Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.

Jun 30, 2026, the newest closed quarter: 151 filers, like-for-like change +4.5%; actively managed books +5.8%; index-like books -2.2%.

Holder type	Share	Filers	Change	New	Exited
Registered adviser	51.1%	88	+7.7%	17	5
Exempt adviser	0.1%	1	-53.2%	0	0
Adviser	9.6%	6	-0.2%	1	0
Bank	11.6%	11	+0.7%	0	0
Broker-dealer	0.9%	1	-3.1%	0	0
Holding company	15.9%	3	-1.8%	0	0
Unknown	10.9%	41	+9.9%	7	2

Style	Share	Filers	Change	New	Exited
Index-like	15.2%	3	-2.2%	0	0
Systematic-like	0.4%	3	-8.5%	1	0
Concentrated	2.2%	24	-16.6%	3	3
Diversified active	82.1%	121	+6.6%	21	4
Not measured	0.0%	0	—	0	0
Unknown	0.0%	0	—	0	0

Turnover	Share	Filers	Change	New	Exited
Low turnover	49.6%	108	+5.5%	16	4
Medium turnover	38.8%	20	+4.2%	5	1
High turnover	8.8%	11	-2.2%	3	2
Unknown	2.8%	12	+12.5%	1	0
Not measured	0.0%	0	—	0	0

Holding horizon	Share	Filers	Change	New	Exited
Short horizon	3.2%	10	+11.1%	2	1
Medium horizon	7.5%	30	+6.3%	6	1
Long horizon	55.0%	103	+4.7%	16	5
Unknown	34.3%	8	+3.2%	1	0
Not measured	0.0%	0	—	0	0

13F book size	Share	Filers	Change	New	Exited
Under $1B	7.8%	46	+24.3%	12	2
$1B to $10B	45.2%	49	+5.8%	7	3
$10B to $100B	10.0%	34	+13.7%	6	1
$100B or more	37.1%	22	-2.5%	0	1
Not measured	0.0%	0	—	0	0

Client base	Share	Filers	Change	New	Exited
Individuals and high net worth	15.3%	72	+17.2%	14	3
Pooled investment vehicles	28.0%	7	+6.3%	2	0
Registered funds and BDCs	7.0%	2	-7.2%	0	1
Pension and profit sharing plans	0.1%	2	0.0%	0	0
Insurance companies	0.2%	1	new	1	0
Banks and thrifts	0.1%	1	+1.7%	0	0
Diversified	0.4%	3	+15.5%	0	0
Corporations	0.0%	0	-100.0%	0	1
Other investment advisers	0.0%	0	—	0	0
Unknown	48.9%	63	+1.3%	8	2

Private funds	Share	Filers	Change	New	Exited
Hedge funds	36.1%	17	+4.0%	5	1
Private equity funds	0.2%	6	-10.0%	1	0
Venture capital funds	0.1%	1	new	1	0
Real estate funds	0.0%	2	+2685.9%	2	1
Securitized asset funds	0.0%	1	0.0%	0	0
Other private funds	2.0%	8	+17.1%	1	0
Mixed private funds	0.0%	3	+43.2%	1	0
No private funds	12.9%	51	+16.3%	6	3
Unknown	48.8%	62	+1.5%	8	2

Location	Share	Filers	Change	New	Exited
United States	93.2%	147	+5.1%	24	7
Outside the US	6.8%	4	-3.1%	1	0

The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.

How the mix is measured

Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.

Excluded 1 holder with no observed 2026-03-31 13F and 2 holders with no observed 2026-06-30 13F.

Conviction and Crowding

151 13F filers, quarter ended Jun 30, 2026

Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.

Conviction holders

1.99% of filers hold it in their top 10

Mar 31, 2026: 3

Holders above 5%

median weight 0.009%

Mar 31, 2026: 0

Crowding

—

no cover-page share count is dated within about a year of the quarter end

Private-fund advisers

—

of shares outstanding

Institutional ownership

—

no cover-page share count is dated within about a year of the quarter end

Top 10 holders

74.6%

of 13F shares, Herfindahl 0.108

Active holders

+5.8%

like-for-like share change of active filers

5% stakes on record

1 13D, 0 13G

How long holders have held it value-weighted 17.9 quarters

Under 1 year 6.36% 1 to 3 years 18.5% 3 years or more 75.1% Since coverage start 0.000%

Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).

Estimated Holder Cost Basis

Quarter ended Jun 30, 2026, on that quarter's share basis

Estimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.

Estimated avg cost

$20.35

estimated per share

Mar 31, 2026: $19.65

Quarter-end price

$30.03

implied by 13F values

Estimated gain or loss

+47.5%

price against the estimated cost

Estimated at a loss

0.096%

of costed 13F value

Estimated cost covers 59.6% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.

Fund Ownership of BSTZ by Fund Type

Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026

Index funds and index ETFs hold 1.36% of shares outstanding.

Fund type	Of shares outstanding	Change	Shares	Funds
Index funds	0.00%	0.00 pp	0	0
Index ETFs	1.36%	+0.05 pp	933,301	1
Active ETFs	2.52%	+0.17 pp	1,732,762	2
Active funds	0.97%	+0.12 pp	668,655	7
Unclassified	0.00%	0.00 pp	0	0
All registered funds	4.85%	+0.34 pp	3,334,718	10

How fund types are measured

Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.

Holder type: Registered adviser 83 Exempt adviser 1 Adviser 6 Bank 11 Broker-dealer 1 Holding company 3 Unknown 40

Showing 100 of 145

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

Saba Capital Management, L.P.

$171,077,096

25.94%

5,696,873

MORGAN STANLEY

$100,198,877

15.19%

3,336,626

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY CAPITAL SERVICES, LLC	20,168	$605,645	0.6%	Defined
MORGAN STANLEY SMITH BARNEY LLC	2,084,452	$62,596,093	62.5%	Defined
PARAMETRIC PORTFOLIO ASSOCIATES LLC	1,232,006	$36,997,139	36.9%	Defined

RIVERNORTH CAPITAL MANAGEMENT, LLC

$45,389,774

6.88%

1,511,481

UBS Group AG

$34,020,024

5.16%

1,132,868

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Financial Services Inc	1,119,079	$33,605,942	98.8%	Defined
UBS AG	12,166	$365,344	1.1%	Defined
UBS Securities LLC	1,623	$48,738	0.1%	Defined

BANK OF AMERICA CORP /DE/

$29,821,711

4.52%

993,064

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MERRILL LYNCH, PIERCE, FENNER & SMITH INC.	943,547	$28,334,716	95.0%	Defined
MERRILL LYNCH INTERNATIONAL	49,517	$1,486,995	5.0%	Defined

RAYMOND JAMES FINANCIAL INC

$28,263,935

4.29%

941,190

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RAYMOND JAMES & ASSOCIATES	765,005	$22,973,100	81.3%	Defined
Raymond James Financial Services Advisors, Inc.	165,535	$4,971,016	17.6%	Defined
RAYMOND JAMES TRUST N.A.	10,650	$319,819	1.1%	Defined

Invesco Ltd.

$25,372,676

3.85%

844,911

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Invesco Investment Advisers LLC	8,188	$245,885	1.0%	Defined
Invesco Capital Management LLC	836,723	$25,126,791	99.0%	Defined

WEDBUSH SECURITIES INC

$22,939,016

3.48%

763,870

LAZARD ASSET MANAGEMENT LLC

$20,360,129

3.09%

677,993

Karpus Management, Inc.

$14,514,129

2.20%

483,321

FLAGSHIP HARBOR ADVISORS, LLC

$9,720,771

1.47%

323,702

Z3 Capital Partners, LLC

$9,506,356

1.44%

316,562

ROYAL BANK OF CANADA

$9,460,439

1.43%

315,033

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RBC Capital Markets, LLC	310,572	$9,326,477	98.6%	Defined
RBC Dominion Securities Inc.	163	$4,894	0.1%	Defined
RBC Trust Co (Delaware) Ltd	4,204	$126,246	1.3%	Defined
RBC Rochdale, LLC	94	$2,822	0.0%	Defined

Rockefeller Capital Management L.P.

$8,505,727

1.29%

283,241

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
ROCKEFELLER FINANCIAL LLC	283,241	$8,505,727	100.0%	Defined

OPPENHEIMER & CO INC

$7,734,767

1.17%

257,568

Steward Partners Investment Advisory, LLC

$7,320,262

1.11%

243,765

LPL Financial LLC

$5,807,261

0.88%

193,382

BLUE BELL PRIVATE WEALTH MANAGEMENT, LLC

$5,714,829

0.87%

190,304

WEALTH ENHANCEMENT ADVISORY SERVICES, LLC

$5,437,610

0.82%

184,827

Potrero Capital Research LLC

$5,020,955

0.76%

167,198

Thomas J. Herzfeld Advisors, Inc.

$4,985,970

0.76%

166,033

OSAIC HOLDINGS, INC.

$4,527,442

0.69%

150,764

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	149,764	$4,497,412	99.3%	Defined
Osaic Advisory Services, LLC	1,000	$30,030	0.7%	Defined

Summit Financial, LLC

$4,146,302

0.63%

138,072

RFG Advisory, LLC

$2,936,693

0.45%

97,792

STIFEL FINANCIAL CORP

$2,839,576

0.43%

94,558

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STIFEL NICOLAUS & CO INC \MO\	94,558	$2,839,576	100.0%	Defined

Sanctuary Advisors, LLC

$2,807,714

0.43%

93,497

INDEPENDENT FINANCIAL GROUP, LLC

$2,705,904

0.41%

91,975

INTREPID FAMILY OFFICE LLC

$2,402,400

0.36%

80,000

Cetera Investment Advisers

$2,271,739

0.34%

75,649

1607 Capital Partners, LLC

$1,989,487

0.30%

66,250

TrueMark Investments, LLC

$1,924,172

0.29%

64,075

PMG Family Office LLC

$1,718,922

0.26%

58,427

EVOLVE PRIVATE WEALTH, LLC

$1,706,694

0.26%

56,833

Janney Montgomery Scott LLC

$1,691,379

0.26%

56,323

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$1,614,892

0.24%

53,776

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	14,613	$438,828	27.2%	Other
G1 EXECUTION SERVICES, LLC	39,163	$1,176,064	72.8%	Other

Family Manage LLC

$1,608,286

0.24%

53,556

HighTower Advisors, LLC

$1,576,605

0.24%

52,501

COMMONWEALTH EQUITY SERVICES, LLC

$1,565,584

0.24%

52,134

Atlas Wealth LLC

$1,531,319

0.23%

50,993

WELLS FARGO & COMPANY/MN

$1,520,808

0.23%

50,643

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO ADVISORS FINANCIAL NETWORK, LLC	3,950	$118,618	7.8%	Defined
WELLS FARGO CLEARING SERVICES, LLC	46,693	$1,402,190	92.2%	Defined

Formidable Asset Management, LLC

$1,428,887

0.22%

47,582

Noble Wealth Management PBC

$1,419,515

0.22%

48,250

NWF Advisory Services Inc.

$1,371,442

0.21%

46,616

Apollon Wealth Management, LLC

$1,270,028

0.19%

42,292

WNY Asset Management, LLC

$1,156,185

0.18%

38,501

NewEdge Advisors, LLC

$1,152,671

0.17%

38,384

AMERIPRISE FINANCIAL INC

$1,132,731

0.17%

37,720

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Ameriprise Financial Services, LLC	37,211	$1,117,446	98.7%	Defined
Ameriprise Bank, FSB	509	$15,285	1.3%	Defined

LM Advisors LLC

$1,128,857

0.17%

37,591

MERCER GLOBAL ADVISORS INC /ADV

$1,128,677

0.17%

37,585

Anchor Capital Management Group Inc

$1,051,050

0.16%

35,000

JANE STREET GROUP, LLC

$1,002,791

0.15%

33,393

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	9,505	$285,435	28.5%	Defined
Jane Street Global Trading, LLC	23,888	$717,356	71.5%	Defined

HARBOUR INVESTMENTS, INC.

$996,935

0.15%

33,198

MILLENNIUM MANAGEMENT LLC

$959,938

0.15%

31,966

XTX Topco Ltd

$955,284

0.14%

31,811

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	31,811	$955,284	100.0%	Defined

Quantinno Capital Management LP

$942,491

0.14%

31,385

WOLVERINE ASSET MANAGEMENT LLC

$918,197

0.14%

30,576

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Wolverine Holdings, LLC	30,576	$918,197	100.0%	Defined

PFG Investments, LLC

$871,230

0.13%

29,012

Fund Advisors of America Inc/FL

$847,806

0.13%

28,232

Almitas Capital LLC

$805,104

0.12%

26,810

Compound Planning, Inc.

$791,620

0.12%

26,361

TRUIST FINANCIAL CORP

$766,275

0.12%

25,517

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
TRUIST BANK /NC/	1,000	$30,030	3.9%	Defined
Truist Advisory Services, Inc.	24,517	$736,245	96.1%	Defined

Focus Financial Network, Inc.

$740,825

0.11%

25,181

CITADEL ADVISORS LLC

$730,689

0.11%

24,332

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	24,332	$730,689	100.0%	Defined

HRT FINANCIAL LP

$729,218

0.11%

24,283

PREVAIL INNOVATIVE WEALTH ADVISORS, LLC

$685,103

0.10%

23,287

AQR CAPITAL MANAGEMENT LLC

$679,218

0.10%

22,618

Indivisible Partners

$670,990

0.10%

22,344

UHLMANN PRICE SECURITIES, LLC

$627,687

0.10%

20,902

Mathes Company, Inc.

$591,591

0.09%

19,700

MGO ONE SEVEN LLC

$572,612

0.09%

19,068

Mariner, LLC

$571,350

0.09%

19,026

Quantedge Capital Pte Ltd

$570,570

0.09%

19,000

SeaCrest Wealth Management, LLC

$561,711

0.09%

18,705

SPIREPOINT PRIVATE CLIENT, LLC

$521,921

0.08%

17,380

Corient Private Wealth LLC

$508,828

0.08%

16,944

Cambridge Investment Research Advisors, Inc.

$498,888

0.08%

16,613

Amplius Wealth Advisors, LLC

$454,715

0.07%

15,456

Delta Investment Management, LLC

$408,408

0.06%

13,600

Dakota Wealth Management

$404,383

0.06%

13,466

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Karpus Management Inc.	13,466	$404,383	100.0%	Defined

1900 WEALTH MANAGEMENT LLC

$397,876

0.06%

13,524

Kestra Advisory Services, LLC

$394,564

0.06%

13,139

B. Riley Wealth Advisors, Inc.

$393,786

0.06%

13,385

Creative Planning

$392,101

0.06%

13,057

World Investment Advisors

$389,308

0.06%

12,964

Stablepoint Partners, LLC

$385,344

0.06%

12,832

CAPTRUST FINANCIAL ADVISORS

$379,368

0.06%

12,633

Stockman Wealth Management, Inc.

$375,825

0.06%

12,515

Painted Porch Advisors LLC

$375,495

0.06%

12,504

CSS LLC/IL

$369,549

0.06%

12,306

EP Wealth Advisors, LLC

$365,254

0.06%

12,163

Merit Financial Group, LLC

$364,023

0.06%

12,122

D.A. DAVIDSON & CO.

$355,615

0.05%

11,842

PNC FINANCIAL SERVICES GROUP, INC.

$354,233

0.05%

11,796

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
PNC Bank, National Association	11,796	$354,233	100.0%	Defined

MATHER GROUP, LLC.

$353,040

0.05%

12,000

INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC

$338,888

0.05%

11,285

Focus Partners Wealth

$332,402

0.05%

11,069

Closed-End Fund Advisors, Inc.

$317,327

0.05%

10,567

NewEdge Wealth, LLC

$310,720

0.05%

10,347

Advocate Investing Services LLC

$309,309

0.05%

10,300

SENTINEL TRUST CO LBA

$300,960

0.05%

10,022

Showing the top 100 of 145 holders. Create a free account to see every holder, past quarters, search, filters and CSV export.

Key facts CIK 1768666 CUSIP 09260K101 13F (30d) 17 filings 17 filers Visit website Investor relations