Rosenstein Justin
Director · Ten-percent owner · ASAN
As of 2026-09-16, Rosenstein Justin has 49 Form 4 transactions on record across 1 company — 19 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Reconstructed holdings
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2025-12-09 | ASAN | Sale | 850,233 @ $15.12 | $12.9M | −80.2% of holding | 210,398 | Form 4 |
| 2025-12-08 | ASAN | Sale | 8,215 @ $14.95 | $123K | −0.8% of holding | 1,060,631 | Form 4 |
| 2025-10-24 | ASAN | Sale | 13,701 @ $14.95 | $205K | −1.3% of holding | 1,068,846 | Form 4 |
| 2025-10-21 | ASAN | Sale | 458,878 @ $14.98 | $6.9M | −29.8% of holding | 1,082,547 | Form 4 |
| 2025-10-10 | ASAN | Sale | 14,500 @ $15.07 | $219K | −0.9% of holding | 1,541,425 | Form 4 |
| 2025-10-09 | ASAN | Sale | 1,199,560 @ $15.23 | $18.3M | −43.5% of holding | 1,555,925 | Form 4 |
| 2025-10-08 | ASAN | Sale | 454,913 @ $15.08 | $6.9M | −14.2% of holding | 2,755,485 | Form 4 |
| 2025-07-28 | ASAN | Sale | 517,635 @ $15.04 | $7.8M | −13.9% of holding | 3,210,398 | Form 4 |
| 2025-07-25 | ASAN | Sale | 223,894 @ $14.98 | $3.4M | −5.7% of holding | 3,728,033 | Form 4 |
| 2025-07-24 | ASAN | Sale | 115,936 @ $15.03 | $1.7M | −2.9% of holding | 3,951,927 | Form 4 |
| 2025-07-23 | ASAN | Sale | 729,228 @ $15.08 | $11.0M | −15.2% of holding | 4,067,863 | Form 4 |
| 2025-07-22 | ASAN | Sale | 966,576 @ $15.04 | $14.5M | −16.8% of holding | 4,797,091 | Form 4 |
| 2025-07-21 | ASAN | Sale | 195,131 @ $15.01 | $2.9M | −3.3% of holding | 5,763,667 | Form 4 |
| 2025-07-18 | ASAN | Sale | 226,600 @ $14.99 | $3.4M | −3.7% of holding | 5,958,798 | Form 4 |
| 2025-07-10 | ASAN | Sale | 25,000 @ $14.95 | $374K | −0.4% of holding | 6,185,398 | Form 4 |
| 2025-03-14 | ASAN | Sale | 75,000 @ $13.96 | $1.0M | −8.1% of holding | 847,309 | Form 4 |
| 2025-03-13 | ASAN | Sale | 25,000 @ $12.89 | $322K | −2.6% of holding | 922,309 | Form 4 |
| 2025-03-03 | ASAN | Sale | 140,287 @ $18.94 | $2.7M | −12.8% of holding | 957,022 | Form 4 |
| 2025-03-03 | ASAN | Sale | 9,713 @ $19.45 | $189K | −1.0% of holding | 947,309 | Form 4 |
| 2025-02-24 | ASAN | Sale | 145,775 @ $19.74 | $2.9M | −11.7% of holding | 1,101,534 | Form 4 |
| 2025-02-24 | ASAN | Sale | 4,225 @ $20.37 | $86K | −0.4% of holding | 1,097,309 | Form 4 |
| 2025-02-19 | ASAN | Sale | 196,900 @ $22.53 | $4.4M | −13.6% of holding | 1,250,409 | Form 4 |
| 2025-02-19 | ASAN | Sale | 3,100 @ $23.27 | $72K | −0.2% of holding | 1,247,309 | Form 4 |
| 2025-02-12 | ASAN | Sale | 116,325 @ $22.62 | $2.6M | −7.4% of holding | 1,447,309 | Form 4 |
| 2025-02-12 | ASAN | Sale | 83,675 @ $21.99 | $1.8M | −5.1% of holding | 1,563,634 | Form 4 |
| 2025-02-05 | ASAN | Sale | 3,933 @ $21.98 | $86K | −0.2% of holding | 1,647,309 | Form 4 |
| 2025-02-04 | ASAN | Sale | 196,067 @ $21.78 | $4.3M | −10.6% of holding | 1,651,242 | Form 4 |
| 2025-01-28 | ASAN | Sale | 179,662 @ $21.83 | $3.9M | −8.9% of holding | 1,847,309 | Form 4 |
| 2025-01-28 | ASAN | Sale | 10,275 @ $20.85 | $214K | −0.5% of holding | 2,026,971 | Form 4 |
| 2025-01-28 | ASAN | Sale | 10,063 @ $19.66 | $198K | −0.5% of holding | 2,037,246 | Form 4 |
| 2025-01-23 | ASAN | Sale | 150,000 @ $20.01 | $3.0M | −6.8% of holding | 2,047,309 | Form 4 |
18 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-06-30 | ASAN | Gift | 2,700,000 | 532,776 | Form 4 |
| 2026-06-08 | ASAN | Award / grant | 22,378 | 3,232,776 | Form 4 |
| 2026-03-31 | ASAN | Conversion | 6,350,000 | 9,560,398 | Form 4 |
| 2026-03-31 | ASAN | Conversion | 6,350,000 | 826,532 | Form 4 |
| 2026-03-31 | ASAN | Gift | 6,350,000 | 3,210,398 | Form 4 |
| 2025-12-22 | ASAN | Gift | 665,000 | 3,210,398 | Form 4 |
| 2025-12-22 | ASAN | Other acquisition | 125,000 | 7,176,532 | Form 4 |
| 2025-12-22 | ASAN | Other acquisition | 125,000 | 722,458 | Form 4 |
| 2025-12-22 | ASAN | Conversion | 665,000 | 7,051,532 | Form 4 |
| 2025-12-22 | ASAN | Conversion | 665,000 | 3,875,398 | Form 4 |
| 2025-12-19 | ASAN | Conversion | 3,000,000 | 7,716,532 | Form 4 |
| 2025-12-19 | ASAN | Conversion | 3,000,000 | 3,210,398 | Form 4 |
| 2025-06-16 | ASAN | Award / grant | 13,089 | 6,210,398 | Form 4 |
| 2025-04-11 | ASAN | Conversion | 5,350,000 | 6,197,309 | Form 4 |
| 2025-04-11 | ASAN | Conversion | 5,350,000 | 10,716,532 | Form 4 |
| 2025-03-19 | ASAN | Gift | 500,000 | 847,309 | Form 4 |
| 2025-03-19 | ASAN | Conversion | 500,000 | 16,066,532 | Form 4 |
| 2025-03-19 | ASAN | Conversion | 500,000 | 1,347,309 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.