Who owns NTSK (NTSK)
Which tracked institutional funds hold NTSK, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See NTSK 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.
How the tape is positioned
39 tracked funds added or opened NTSK while 84 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
NTSK’s largest tracked holder by dollar value, ICONIQ Capital, LLC, sizes it at 12.6% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 12.6pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in NTSK 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 175 tracked filers holding NTSK, 127 increased or opened the position and 80 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 NTSK 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 27
- SCGE MANAGEMENT, L.P.$93M
- SAPPHIRE VENTURES, L.L.C.$48M
- VANGUARD PORTFOLIO MANAGEMENT LLC$24M
- VANGUARD CAPITAL MANAGEMENT LLC$21M
- BNP PARIBAS FINANCIAL MARKETS$17M
- Weiss Asset Management LP$9M
Full exits 37
- CANADA PENSION PLAN INVESTMENT BOARD$157M
- VANGUARD GROUP INC$88M
- Capital International Investors$37M
- T. Rowe Price Investment Management, Inc.$36M
- BIT Capital GmbH$28M
- ALLIANCEBERNSTEIN L.P.$16M
Largest adds
- MILLENNIUM MANAGEMENT LLC$18M
- Jump Financial, LLC$12M
- Clearbridge Investments, LLC$6M
- JPMORGAN CHASE & CO$5M
- Bank of New York Mellon Corp$3M
- TUDOR INVESTMENT CORP ET AL$3M
Largest trims
- ICONIQ Capital, LLC$600M
- MASSACHUSETTS FINANCIAL SERVICES CO /MA/$62M
- TimesSquare Capital Management, LLC$27M
- Public Sector Pension Investment Board$26M
- FEDERATED HERMES, INC.$21M
- Capital Research Global Investors$20M
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).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| ICONIQ Capital, LLC | 66,267,513 | $563M | 31.8% | 2026-Q1 |
| SCGE MANAGEMENT, L.P. added | 10,950,921 | $93M | 5.2% | 2026-Q1 |
| SAPPHIRE VENTURES, L.L.C. new | 5,672,579 | $48M | 2.7% | 2026-Q1 |
| BAMCO INC /NY/ added | 3,824,078 | $32M | 1.8% | 2026-Q1 |
| Public Sector Pension Investment Board | 3,471,065 | $29M | 1.7% | 2026-Q1 |
| BlackRock, Inc. added | 3,403,649 | $29M | 1.6% | 2026-Q1 |
| TimesSquare Capital Management, LLC added | 3,294,987 | $28M | 1.6% | 2026-Q1 |
| VOYA INVESTMENT MANAGEMENT LLC added | 2,876,822 | $24M | 1.4% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 2,858,287 | $24M | 1.4% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 2,746,955 | $23M | 1.3% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 2,547,468 | $22M | 1.2% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 2,508,079 | $21M | 1.2% | 2026-Q1 |
| Capital Research Global Investors | 2,261,418 | $19M | 1.1% | 2026-Q1 |
| Clearbridge Investments, LLC added | 2,242,873 | $19M | 1.1% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS new | 1,986,582 | $17M | 1.0% | 2026-Q1 |
| MORGAN STANLEY added | 1,831,116 | $16M | 0.9% | 2026-Q1 |
| Jump Financial, LLC added | 1,528,068 | $13M | 0.7% | 2026-Q1 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 1,166,135 | $10M | 0.6% | 2026-Q1 |
| FRANKLIN RESOURCES INC trimmed | 1,162,906 | $10M | 0.6% | 2026-Q1 |
| Weiss Asset Management LP new | 1,054,987 | $9M | 0.5% | 2026-Q1 |
| NEW YORK LIFE INSURANCE CO trimmed | 1,035,245 | $9M | 0.5% | 2026-Q1 |
| Wilmington Savings Fund Society, FSB new | 1,019,457 | $9M | 0.5% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,009,200 | $9M | 0.5% | 2026-Q1 |
| JACOBS LEVY EQUITY MANAGEMENT, INC new | 1,005,260 | $9M | 0.5% | 2026-Q1 |
| Stephens Investment Management Group LLC added | 977,786 | $8M | 0.5% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 968,559 | $8M | 0.5% | 2026-Q1 |
| Alta Park Capital, LP | 909,091 | $8M | 0.4% | 2026-Q1 |
| TUDOR INVESTMENT CORP ET AL added | 843,142 | $7M | 0.4% | 2026-Q1 |
| STATE STREET CORP added | 731,791 | $6M | 0.4% | 2026-Q1 |
| OFI INVEST ASSET MANAGEMENT trimmed | 841,072 | $6M | 0.3% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 721,624 | $6M | 0.3% | 2026-Q1 |
| UBS Group AG added | 643,149 | $5M | 0.3% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 516,768 | $4M | 0.2% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 511,374 | $4M | 0.2% | 2026-Q1 |
| BARCLAYS PLC added | 506,979 | $4M | 0.2% | 2026-Q1 |
| TIGER GLOBAL MANAGEMENT LLC | 500,000 | $4M | 0.2% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 490,012 | $4M | 0.2% | 2026-Q1 |
| Bank of New York Mellon Corp added | 475,918 | $4M | 0.2% | 2026-Q1 |
| MAVERICK CAPITAL LTD | 465,736 | $4M | 0.2% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 420,270 | $4M | 0.2% | 2026-Q1 |
| Trexquant Investment LP new | 371,419 | $3M | 0.2% | 2026-Q1 |
| Granahan Investment Management, LLC added | 367,578 | $3M | 0.2% | 2026-Q1 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC added | 352,328 | $3M | 0.2% | 2026-Q1 |
| Point72 Asset Management, L.P. new | 336,530 | $3M | 0.2% | 2026-Q1 |
| ExodusPoint Capital Management, LP added | 315,466 | $3M | 0.2% | 2026-Q1 |
| LMR Partners LLP | 279,200 | $2M | 0.1% | 2026-Q1 |
| SEVEN GRAND MANAGERS, LLC trimmed | 250,000 | $2M | 0.1% | 2026-Q1 |
| Burkehill Global Management, LP | 250,000 | $2M | 0.1% | 2026-Q1 |
| Mitsubishi UFJ Asset Management Co., Ltd. new | 215,000 | $2M | 0.1% | 2026-Q1 |
| NORTHERN TRUST CORP added | 210,040 | $2M | 0.1% | 2026-Q1 |
| Hound Partners, LLC | 206,500 | $2M | 0.1% | 2026-Q1 |
| Beacon Pointe Advisors, LLC new | 192,762 | $2M | 0.1% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 181,361 | $2M | 0.1% | 2026-Q1 |
| Walleye Capital LLC trimmed | 161,729 | $1M | 0.1% | 2026-Q1 |
| STRS OHIO | 155,000 | $1M | 0.1% | 2026-Q1 |
| CANADA PENSION PLAN INVESTMENT BOARD | 8,960,263 | $157M | 8.9% | 2025-Q4 stale |
| VANGUARD GROUP INC added | 4,991,680 | $88M | 4.9% | 2025-Q4 stale |
| Capital International Investors added | 2,101,264 | $37M | 2.1% | 2025-Q4 stale |
| T. Rowe Price Investment Management, Inc. trimmed | 2,059,194 | $36M | 2.0% | 2025-Q4 stale |
| BIT Capital GmbH new | 1,578,277 | $28M | 1.6% | 2025-Q4 stale |
| ALLIANCEBERNSTEIN L.P. added | 915,041 | $16M | 0.9% | 2025-Q4 stale |
| Holocene Advisors, LP new | 670,506 | $15M | 0.9% | 2025-Q3 stale |
| LORD, ABBETT & CO. LLC trimmed | 810,947 | $14M | 0.8% | 2025-Q4 stale |
| NORGES BANK new | 765,000 | $13M | 0.8% | 2025-Q4 stale |
| Schonfeld Strategic Advisors LLC new | 554,652 | $13M | 0.7% | 2025-Q3 stale |
| Invesco Ltd. new | 454,342 | $10M | 0.6% | 2025-Q3 stale |
| NEXT CENTURY GROWTH INVESTORS LLC added | 578,365 | $10M | 0.6% | 2025-Q4 stale |
| AMERIPRISE FINANCIAL INC new | 387,592 | $9M | 0.5% | 2025-Q3 stale |
| NEUBERGER BERMAN GROUP LLC added | 430,734 | $8M | 0.4% | 2025-Q4 stale |
| Altimeter Capital Management, LP new | 325,000 | $7M | 0.4% | 2025-Q3 stale |
| Sculptor Capital LP new | 300,000 | $7M | 0.4% | 2025-Q3 stale |
| Monashee Investment Management LLC new | 300,000 | $7M | 0.4% | 2025-Q3 stale |
| AMERICAN CENTURY COMPANIES INC trimmed | 380,416 | $7M | 0.4% | 2025-Q4 stale |
| Bain Capital Public Equity Management II, LLC new | 259,890 | $6M | 0.3% | 2025-Q3 stale |
| THORNBURG INVESTMENT MANAGEMENT INC new | 302,288 | $5M | 0.3% | 2025-Q4 stale |
| SOROS FUND MANAGEMENT LLC new | 215,222 | $5M | 0.3% | 2025-Q3 stale |
| D. E. Shaw & Co., Inc. new | 205,000 | $5M | 0.3% | 2025-Q3 stale |
| Fortress Investment Group LLC new | 195,000 | $4M | 0.3% | 2025-Q3 stale |
| Freestone Grove Partners LP added | 250,147 | $4M | 0.2% | 2025-Q4 stale |
| Woodline Partners LP trimmed | 245,223 | $4M | 0.2% | 2025-Q4 stale |
| TD Asset Management Inc added | 236,540 | $4M | 0.2% | 2025-Q4 stale |
| Grandeur Peak Global Advisors, LLC added | 209,534 | $4M | 0.2% | 2025-Q4 stale |
| NewGen Asset Management Ltd new | 150,000 | $4M | 0.2% | 2025-Q3 stale |
| Insight Holdings Group, LLC | 175,000 | $3M | 0.2% | 2025-Q4 stale |
| MANE GLOBAL CAPITAL MANAGEMENT LP new | 130,000 | $3M | 0.2% | 2025-Q3 stale |
| Polar Asset Management Partners Inc. new | 123,800 | $3M | 0.2% | 2025-Q3 stale |
| BROWN ADVISORY INC new | 120,952 | $3M | 0.2% | 2025-Q3 stale |
| Centiva Capital, LP new | 119,082 | $3M | 0.2% | 2025-Q3 stale |
| CYPRESS POINT INVESTMENT MANAGEMENT LP new | 150,919 | $3M | 0.1% | 2025-Q4 stale |
| Lykos Global Management, LP new | 150,000 | $3M | 0.1% | 2025-Q4 stale |
| Atika Capital Management LLC new | 114,000 | $3M | 0.1% | 2025-Q3 stale |
| Knollwood Investment Advisory, LLC added | 139,279 | $2M | 0.1% | 2025-Q4 stale |
| Longaeva Partners L.P. new | 105,000 | $2M | 0.1% | 2025-Q3 stale |
| Hudson Bay Capital Management LP trimmed | 129,916 | $2M | 0.1% | 2025-Q4 stale |
| Blackstone Inc. new | 125,000 | $2M | 0.1% | 2025-Q4 stale |
| GILDER GAGNON HOWE & CO LLC trimmed | 111,246 | $2M | 0.1% | 2025-Q4 stale |
| Swedbank AB new | 102,693 | $2M | 0.1% | 2025-Q4 stale |
| Balyasny Asset Management L.P. trimmed | 97,048 | $2M | 0.1% | 2025-Q4 stale |
| RENAISSANCE TECHNOLOGIES LLC new | 84,665 | $1M | 0.1% | 2025-Q4 stale |
| NEW YORK STATE COMMON RETIREMENT FUND added | 78,248 | $1M | 0.1% | 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.
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.