My Size, Inc. (MYSZ) Ownership
MYSZ ownership summary
as of October 17, 2026- Institutions
- 2.3% of shares outstanding
- Insiders
- 9.39% of shares outstanding
- Shares outstanding
- 878K
- Float
- 657K shares available to trade
- Short interest
- 7.60% 49K shares short
- Days to cover
- 0.03 short interest down 72.9% vs prior month
- Institutions 2.28%
- Insiders 9.39%
- Other investors 88.34%
MYSZ top institutional holders
10 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Citadel Advisors Llc | 1.81% | 87K | $99,540 | +67,893 (+349.5%) | June 30, 2026 |
| 2 | Williams & Novak LLC | 0.58% | 28K | $31,926 | +975 (+3.6%) | June 30, 2026 |
| 3 | XTX Topco Ltd | 0.58% | 28K | $31,682 | +8,261 (+42.3%) | June 30, 2026 |
| 4 | SBI Securities Co Ltd | <0.01% | 25 | $28 | — | June 30, 2026 |
| 5 | Advisor Group Holdings, Inc. | <0.01% | 15 | $17 | +15 (0.0%) | June 30, 2026 |
| 6 | Johnson Financial Group Inc | 0.00% | 2 | $2 | — | June 30, 2026 |
| 7 | DRW Securities, LLC | 0.00% | — | — | −73,214 (−100.0%) | March 31, 2026 |
| 8 | Morgan Stanley - Brokerage Accounts | 0.00% | — | — | −509 (−100.0%) | June 30, 2026 |
| 9 | Susquehanna International Group, LLP | 0.00% | — | — | −13,102 (−100.0%) | June 30, 2026 |
| 10 | UBS Group AG | 0.00% | — | — | −4,362 (−100.0%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 10, 4 holders added 77K shares and 4 cut 91K.
MYSZ top mutual fund and ETF holders
1 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Fidelity Nasdaq Composite Index | 0.04% | 1,815 | $2,069 | — | May 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
MYSZ insider transactions
latest 5| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2025-12-29 | Ronen Luzon | Buy | $0.78 | 3,750 | $2,925 |
| 2025-12-01 | Ronen Luzon | Buy | $0.91 | 2,600 | $2,366 |
| 2025-11-25 | Ronen Luzon | Buy | $0.90 | 14,000 | $12,600 |
| 2025-11-24 | Ronen Luzon | Buy | $0.89 | 235 | $209 |
| 2025-11-20 | Ronen Luzon | Buy | $0.76 | 13,500 | $10,260 |
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.
MYSZ shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns MYSZ
Institutional investors own 2.3% of My Size's shares and insiders 9.39%. The largest holder is Citadel Advisors Llc with 1.81% of the shares (87K), as of June 30, 2026. Among the top 10 institutions, 4 added shares and 4 reduced their stake in the latest filings. Short interest is 7.60% of the float, or 0.03 days of average trading volume. The share count rose 11,053.8% since 2014.
Related: MYSZ analyst forecast, MYSZ key metrics. See the MYSZ stock overview for the latest quote and news.
MYSZ ownership FAQ
Who owns the most My Size stock?
The largest shareholders of My Size are Citadel Advisors Llc (1.81%), Williams & Novak LLC (0.58%), XTX Topco Ltd (0.58%), SBI Securities Co Ltd (<0.01%), Advisor Group Holdings, Inc. (<0.01%).
What percentage of My Size is owned by institutions?
Institutions hold 2.3% of My Size's shares outstanding; insiders hold 9.39%.
Which funds own My Size?
The largest fund holders of My Size are Fidelity Nasdaq Composite Index (0.04%).
What is My Size's short interest?
49K shares of My Size were sold short, 7.60% of the float; at the average daily volume it would take 0.03 days to cover.
Are insiders buying or selling My Size?
Of the latest 5 reported insider transactions in My Size (since November 20, 2025), 5 were purchases and 0 were sales.
How many shares of My Size are outstanding?
My Size has 878K shares outstanding, of which 657K are in the public float.