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Institutional Ownership · SEC Form 13F

Who owns NSSC (NSSC)


Which tracked institutional funds hold NSSC, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See NSSC company fundamentals →

Ownership as of the 2026-Q1 13F filings. 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.

271
Institutional holders
32,808,326
Shares held (tracked funds)
92.0%
Of shares outstanding

How the tape is positioned

68 tracked funds added or opened NSSC while 71 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.

A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.

Conviction spread

NSSC’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes NSSC more heavily than its largest holder by dollar value does.

Book-share is each fund’s reported value in NSSC divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.

Institutional & insider positioning

Between 2025-Q4 and 2026-Q1, across 271 tracked filers holding NSSC, 146 increased or opened the position and 129 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.

This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.

New buyers & exits

Funds opening or closing a position in NSSC between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.

New buyers 18

  • VANGUARD CAPITAL MANAGEMENT LLC$59M
  • VANGUARD PORTFOLIO MANAGEMENT LLC$58M
  • PRUDENTIAL FINANCIAL INC$30M
  • VANGUARD FIDUCIARY TRUST CO$10M
  • AMERIPRISE FINANCIAL INC$3M
  • Vident Advisory, LLC$2M

Full exits 15

  • VANGUARD GROUP INC$108M
  • ADAGE CAPITAL PARTNERS GP, L.L.C.$10M
  • TUDOR INVESTMENT CORP ET AL$8M
  • DANSKE BANK A/S$5M
  • 4D Advisors, LLC$4M
  • D. E. Shaw & Co., Inc.$3M

Largest adds

  • Copeland Capital Management, LLC$20M
  • STATE STREET CORP$19M
  • BlackRock, Inc.$17M
  • BESSEMER GROUP INC$11M
  • Point72 Asset Management, L.P.$8M
  • PRINCIPAL FINANCIAL GROUP INC$6M

Largest trims

  • Fundsmith LLP$59M
  • Divisadero Street Capital Management, LP$32M
  • JANUS HENDERSON GROUP PLC$9M
  • Qube Research & Technologies Ltd$9M
  • ROYAL BANK OF CANADA$5M
  • BNP PARIBAS FINANCIAL MARKETS$5M

Institutional holders

One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).

FundSharesReported value% of valueQuarter
BlackRock, Inc. added3,850,023$152M10.9%2026-Q1
Copeland Capital Management, LLC added2,009,089$79M5.7%2026-Q1
VANGUARD CAPITAL MANAGEMENT LLC new1,505,177$59M4.3%2026-Q1
VANGUARD PORTFOLIO MANAGEMENT LLC new1,464,212$58M4.1%2026-Q1
STATE STREET CORP added1,431,503$57M4.1%2026-Q1
JANUS HENDERSON GROUP PLC trimmed1,424,963$56M4.0%2026-Q1
GEODE CAPITAL MANAGEMENT, LLC added1,108,092$44M3.1%2026-Q1
WELLINGTON MANAGEMENT GROUP LLP added904,777$36M2.6%2026-Q1
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed846,040$33M2.4%2026-Q1
PRUDENTIAL FINANCIAL INC added750,030$30M2.1%2026-Q1
DIMENSIONAL FUND ADVISORS LP added702,852$28M2.0%2026-Q1
FIRST TRUST ADVISORS LP trimmed685,189$27M1.9%2026-Q1
Doma Perpetual Capital Management LLC627,931$25M1.8%2026-Q1
NORTHERN TRUST CORP trimmed584,327$23M1.7%2026-Q1
Point72 Asset Management, L.P. added482,272$19M1.4%2026-Q1
ROYAL BANK OF CANADA trimmed476,558$19M1.3%2026-Q1
MORGAN STANLEY added464,861$18M1.3%2026-Q1
RENAISSANCE TECHNOLOGIES LLC added436,800$17M1.2%2026-Q1
JACOBS LEVY EQUITY MANAGEMENT, INC trimmed412,788$16M1.2%2026-Q1
GOLDMAN SACHS GROUP INC added403,294$16M1.1%2026-Q1
Fundsmith LLP trimmed383,596$15M1.1%2026-Q1
ENVESTNET ASSET MANAGEMENT INC added375,638$15M1.1%2026-Q1
CHARLES SCHWAB INVESTMENT MANAGEMENT INC added338,560$13M1.0%2026-Q1
Bank of New York Mellon Corp added302,967$12M0.9%2026-Q1
BESSEMER GROUP INC added292,867$12M0.8%2026-Q1
AQR CAPITAL MANAGEMENT LLC trimmed275,309$11M0.8%2026-Q1
CAPTRUST FINANCIAL ADVISORS added274,419$11M0.8%2026-Q1
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added272,027$11M0.8%2026-Q1
FEDERATED HERMES, INC. added269,642$11M0.8%2026-Q1
Granite Investment Partners, LLC trimmed267,526$11M0.8%2026-Q1
Visionary Wealth Advisors trimmed262,401$10M0.7%2026-Q1
CONGRESS ASSET MANAGEMENT CO added252,402$10M0.7%2026-Q1
VANGUARD FIDUCIARY TRUST CO new246,641$10M0.7%2026-Q1
WASATCH ADVISORS LP added242,585$10M0.7%2026-Q1
ALGERT GLOBAL LLC added241,156$9M0.7%2026-Q1
PRINCIPAL FINANCIAL GROUP INC added225,314$9M0.6%2026-Q1
BANK OF AMERICA CORP /DE/ trimmed221,765$9M0.6%2026-Q1
Russell Investments Group, Ltd. added213,787$8M0.6%2026-Q1
Man Group plc added209,630$8M0.6%2026-Q1
Nuveen, LLC added199,129$8M0.6%2026-Q1
GAMCO INVESTORS, INC. ET AL trimmed178,900$7M0.5%2026-Q1
Trexquant Investment LP added171,138$7M0.5%2026-Q1
KORNITZER CAPITAL MANAGEMENT INC /KS trimmed169,353$7M0.5%2026-Q1
Qube Research & Technologies Ltd trimmed166,639$7M0.5%2026-Q1
CANADA PENSION PLAN INVESTMENT BOARD trimmed162,400$6M0.5%2026-Q1
RICE HALL JAMES & ASSOCIATES, LLC added146,773$6M0.4%2026-Q1
CRAWFORD INVESTMENT COUNSEL INC added139,288$5M0.4%2026-Q1
CenterBook Partners LP trimmed132,467$5M0.4%2026-Q1
SEI INVESTMENTS CO added131,418$5M0.4%2026-Q1
Public Sector Pension Investment Board added127,554$5M0.4%2026-Q1
Invesco Ltd. added124,389$5M0.4%2026-Q1
LOS ANGELES CAPITAL MANAGEMENT LLC added121,452$5M0.3%2026-Q1
ALTA CAPITAL MANAGEMENT LLC/ trimmed120,530$5M0.3%2026-Q1
Rockefeller Capital Management L.P. added118,793$5M0.3%2026-Q1
DEPRINCE RACE & ZOLLO INC added118,763$5M0.3%2026-Q1
Redmond Asset Management, LLC trimmed118,714$5M0.3%2026-Q1
HighTower Advisors, LLC trimmed118,129$5M0.3%2026-Q1
PDT Partners, LLC trimmed117,280$5M0.3%2026-Q1
ISTHMUS PARTNERS, LLC trimmed115,669$5M0.3%2026-Q1
Uniplan Investment Counsel, Inc. trimmed113,389$4M0.3%2026-Q1
BNP PARIBAS FINANCIAL MARKETS trimmed112,950$4M0.3%2026-Q1
SG Capital Management LLC added107,168$4M0.3%2026-Q1
VOLORIDGE INVESTMENT MANAGEMENT, LLC trimmed99,238$4M0.3%2026-Q1
JPMORGAN CHASE & CO added102,563$4M0.3%2026-Q1
STIFEL FINANCIAL CORP trimmed93,693$4M0.3%2026-Q1
RHUMBLINE ADVISERS added93,566$4M0.3%2026-Q1
AMERICAN CENTURY COMPANIES INC trimmed90,471$4M0.3%2026-Q1
Walleye Capital LLC added89,398$4M0.3%2026-Q1
TWO SIGMA INVESTMENTS, LP added86,200$3M0.2%2026-Q1
Legal & General Group Plc added83,236$3M0.2%2026-Q1
FIRST NATIONAL BANK OF OMAHA trimmed80,327$3M0.2%2026-Q1
Thrivent Financial for Lutherans added74,790$3M0.2%2026-Q1
NEW YORK STATE COMMON RETIREMENT FUND72,915$3M0.2%2026-Q1
Linden Thomas Advisory Services, LLC added72,472$3M0.2%2026-Q1
First National Advisers, LLC trimmed72,247$3M0.2%2026-Q1
Swiss National Bank70,400$3M0.2%2026-Q1
CITADEL ADVISORS LLC trimmed69,690$3M0.2%2026-Q1
HRT FINANCIAL LP trimmed65,822$3M0.2%2026-Q1
AMERIPRISE FINANCIAL INC added64,723$3M0.2%2026-Q1
Allianz Asset Management GmbH trimmed60,650$2M0.2%2026-Q1
Y-Intercept (Hong Kong) Ltd added59,331$2M0.2%2026-Q1
Bridge City Capital, LLC trimmed58,610$2M0.2%2026-Q1
Voleon Capital Management LP trimmed52,868$2M0.1%2026-Q1
TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY added51,962$2M0.1%2026-Q1
Divisadero Street Capital Management, LP trimmed50,799$2M0.1%2026-Q1
UBS Group AG trimmed50,768$2M0.1%2026-Q1
Vident Advisory, LLC added48,891$2M0.1%2026-Q1
VANGUARD GROUP INC trimmed2,593,420$108M7.8%2025-Q4 stale
EMERALD ADVISERS, LLC trimmed466,165$20M1.4%2025-Q3 stale
ADAGE CAPITAL PARTNERS GP, L.L.C. added243,510$10M0.7%2025-Q4 stale
TUDOR INVESTMENT CORP ET AL added200,489$8M0.6%2025-Q4 stale
EMERALD MUTUAL FUND ADVISERS TRUST trimmed189,495$8M0.6%2025-Q3 stale
UNITED CAPITAL FINANCIAL ADVISORS, LLC trimmed207,112$6M0.4%2025-Q2 stale
DANSKE BANK A/S trimmed130,235$5M0.4%2025-Q4 stale
4D Advisors, LLC100,000$4M0.3%2025-Q4 stale
D. E. Shaw & Co., Inc. trimmed75,362$3M0.2%2025-Q4 stale
Squarepoint Ops LLC trimmed115,473$3M0.2%2025-Q1 stale
Verition Fund Management LLC trimmed63,535$3M0.2%2025-Q4 stale
ACADIAN ASSET MANAGEMENT LLC added61,117$3M0.2%2025-Q4 stale
Jump Financial, LLC trimmed56,580$2M0.2%2025-Q4 stale

Ownership over time

Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.

HoldersTotal shares

Reading this table

Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.

About 13F filings

A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.

Learn how to read institutional ownership