Align Technology, Inc. (ALGN) Ownership

NASDAQ: ALGNTop holders, insider trades and short interest.

ALGN ownership summary

as of October 18, 2026
Institutions
105.5%
of shares outstanding
Insiders
6.13%
of shares outstanding
Shares outstanding
71.0M
Float
66.8M
shares available to trade
Short interest
6.76%
4.2M shares short
Days to cover
4.57
short interest up 7.7% vs prior month
  • Institutions 105.47%
  • Insiders 6.13%

ALGN top institutional holders

20 largest
Align Technology, Inc. top institutional holders
#Holder% of sharesSharesValueChangeReported
1BlackRock Inc6.22%4.4M$651.0M+129,442 (+3.0%)June 30, 2026
2Vanguard Capital Management, LLC6.20%4.4M$648.4M+12,194 (+0.3%)June 30, 2026
3FMR Inc5.72%4.1M$598.1M+1.4M (+50.4%)June 30, 2026
4Capital Research & Mgmt Co - Division 35.69%4.0M$596.0M+236,359 (+6.2%)June 30, 2026
5Capital World Investors4.82%3.4M$504.2M−649,911 (−16.0%)June 30, 2026
6The Goldman Sachs Group Inc4.75%3.4M$496.8M+1.6M (+87.8%)June 30, 2026
7Vanguard Portfolio Management, LLC4.41%3.1M$461.3M−19,019 (−0.6%)June 30, 2026
8State Street Corp3.60%2.6M$376.9M+42,258 (+1.7%)June 30, 2026
9Geode Capital Management, LLC3.16%2.2M$330.8M+454,611 (+25.4%)June 30, 2026
10Ninety One UK Limited3.11%2.2M$325.5M−18,423 (−0.8%)June 30, 2026
11UBS Group AG2.99%2.1M$313.1M+720,131 (+51.2%)June 30, 2026
12Kayne Anderson Rudnick Investment Management LLC2.44%1.7M$255.4M−169,421 (−8.9%)June 30, 2026
13Dimensional Fund Advisors, Inc.2.03%1.4M$212.0M+466,381 (+48.0%)June 30, 2026
14Amvescap Plc.1.99%1.4M$208.2M+101,053 (+7.7%)June 30, 2026
15Assenagon Asset Management SA1.78%1.3M$186.0M+272,918 (+27.6%)June 30, 2026
16Ruane, Cunniff & Goldfarb L.P.1.65%1.2M$172.6M−35,080 (−2.9%)June 30, 2026
17Arrowstreet Capital Limited Partnership1.51%1.1M$157.9M+16,968 (+1.6%)June 30, 2026
18Jacobs Levy Equity Management, Inc.1.50%1.1M$157.5M+37,640 (+3.6%)June 30, 2026
19Morgan Stanley - Brokerage Accounts1.43%1.0M$149.3M+520 (+0.1%)June 30, 2026
20NORGES BANK1.27%905K$133.3M−91,574 (−9.2%)June 30, 2026

Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 14 holders added 5.4M shares and 6 cut 983K.

ALGN top mutual fund and ETF holders

20 largest
Align Technology, Inc. top fund holders
#Holder% of sharesSharesValueChangeReported
1Fidelity Contrafund3.52%2.5M$368.3M−816 (−0.0%)August 31, 2026
2Vanguard MStar Total Stk Mkt Idx Invest3.04%2.2M$318.4M−6,916 (−0.3%)August 31, 2026
3American Funds New Perspective A2.75%2.0M$287.4M—September 30, 2026
4Vanguard 500 Index Investor2.44%1.7M$255.4M−35,496 (−2.0%)September 30, 2026
5Vanguard Small Cap Index2.14%1.5M$223.8M−45,813 (−2.9%)September 30, 2026
6American Funds Fundamental Invs A1.81%1.3M$189.8M—September 30, 2026
7Invesco S&P 500® Equal Weight ETF1.80%1.3M$188.4M−2,660 (−0.2%)September 30, 2026
8American Funds New Economy A1.72%1.2M$180.4M—September 30, 2026
9Vanguard MStar Small Cap Value Index1.39%988K$145.6M−6,098 (−0.6%)September 30, 2026
10Ninety One GSF Glb Frchs I Acc USD1.24%882K$129.9M—June 30, 2026
11iShares Core S&P 500 ETF1.24%880K$129.6M−1,406 (−0.2%)September 30, 2026
12Fidelity 500 Index1.22%865K$127.4M+3,319 (+0.4%)August 31, 2026
13State Street® SPDR® S&P 500® ETF1.14%810K$119.4M—September 30, 2026
14American Funds New World A0.90%638K$94.0M+145,475 (+29.5%)September 30, 2026
15Fidelity Contrafund K60.76%540K$79.5M−1,316 (−0.2%)August 31, 2026
16State Street®HlthCrSelSectSPDR®ETF0.66%469K$69.0M+1,456 (+0.3%)September 30, 2026
17Sequoia ETF0.64%455K$67.0M—June 30, 2026
18American Funds IS® Growth 10.62%441K$65.0M−7,695 (−1.7%)September 30, 2026
19American Funds Growth Fd of Amer A0.54%380K$56.0M+100,003 (+35.7%)September 30, 2026
20American Funds Washington Mutual A0.50%356K$52.5M+33,021 (+10.2%)September 30, 2026

Funds report holdings monthly or quarterly; dates differ by fund.

ALGN insider transactions

latest 6
Align Technology, Inc. insider transactions
DateNameTransactionPriceSharesValue
2026-02-18John MoriciSell$189.317,969$1.5M
2026-01-29Ro KhannaSell$164.12——
2025-09-11Lisa C. McClainSell$135.91——
2025-08-04Lisa C. McClainBuy$137.77——
2025-08-04Ro KhannaSell$137.77——
2025-08-01Joseph M HoganBuy$131.497,576$996,168

Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.

ALGN shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns ALGN

Institutional investors own 105.5% of Align's shares and insiders 6.13%. The largest holder is BlackRock Inc with 6.22% of the shares (4.4M), as of June 30, 2026. Among the top 20 institutions, 14 added shares and 6 reduced their stake in the latest filings. Short interest is 6.76% of the float, or 4.57 days of average trading volume. The share count fell 12.3% since 2014.

Related: ALGN analyst forecast, ALGN key metrics. See the ALGN stock overview for the latest quote and news.

ALGN ownership FAQ

Who owns the most Align stock?

The largest shareholders of Align are BlackRock Inc (6.22%), Vanguard Capital Management, LLC (6.20%), FMR Inc (5.72%), Capital Research & Mgmt Co - Division 3 (5.69%), Capital World Investors (4.82%).

What percentage of Align is owned by institutions?

Institutions hold 105.5% of Align's shares outstanding; insiders hold 6.13%.

Which funds own Align?

The largest fund holders of Align are Fidelity Contrafund (3.52%), Vanguard MStar Total Stk Mkt Idx Invest (3.04%), American Funds New Perspective A (2.75%), Vanguard 500 Index Investor (2.44%), Vanguard Small Cap Index (2.14%).

What is Align's short interest?

4.2M shares of Align were sold short, 6.76% of the float; at the average daily volume it would take 4.57 days to cover.

Are insiders buying or selling Align?

Of the latest 6 reported insider transactions in Align (since August 1, 2025), 2 were purchases and 4 were sales.

How many shares of Align are outstanding?

Align has 71.0M shares outstanding, of which 66.8M are in the public float.

Medical Instruments & Supplies: ownership