Insider · CIK 0001806935
John Strosahl
Files at PRO (PROS Holdings, Inc.), JAMF (Jamf Holding Corp.). First filing Mar 21, 2025, latest Oct 20, 2025.
John Strosahl files SEC Form 4 as CEO and director at JAMF (Jamf Holding Corp.), and also at PRO (PROS Holdings, Inc.). Since Mar 21, 2025, John Strosahl has reported 0 open-market buys worth $0 and 3 open-market sells worth $1.4M, the latest filed on Oct 20, 2025.
A track record needs three past buys with six months of prices behind them; John Strosahl has 0, so none is measured yet.
The newest scored trade: sold $431k of JAMF on Oct 17, 2025, filed Oct 20, 2025, scored 50 (moderate). In the last 12 months: 0 buys worth $0 and 1 sell worth $431k.
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 50Moderate | Jamf Holding Corp. | $431k 43,650 shares | -3% | - | |
| 51Moderate | Jamf Holding Corp. | $173k 16,125 shares | -1% | - | |
| 62Notable | Jamf Holding Corp. | $763k 56,170 shares | -4% | - |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Jun 5, 2025 | JAMF JAMF HOLDING CORP. | 16,125 0.01% of outstanding | $173k | Jun 5, 2025 | $763k |
| Mar 19, 2025 | JAMF JAMF HOLDING CORP. | 56,170 0.04% of outstanding | $763k | Mar 19, 2025 | none |
Transactions
Every row this insider has filed, 14 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Jan 30, 2026 | JAMF Jamf Holding Corp. | DDisposition to issuer Common Stock | -1,480,451 | $13.05 | $19M | 0 | Feb 3, 2026 |
| Jan 30, 2026 | JAMF Jamf Holding Corp. | DDisposition to issuer Stock Option (Right to Buy)derivative | -121,000 | $7.56 | $915k | 0 | Feb 3, 2026 |
| Jan 30, 2026 | JAMF Jamf Holding Corp. | DDisposition to issuer Stock Option (Right to Buy)derivative | -123,750 | $4.84 | $599k | 0 | Feb 3, 2026 |
| Dec 9, 2025 | PRO PROS Holdings, Inc. | DDisposition to issuer Common Stock | -3,614 | $23.25 | $84k | 0 | Dec 11, 2025 |
| Dec 9, 2025 | PRO PROS Holdings, Inc. | DDisposition to issuer Restricted Stock Unitsderivative | -11,262 | $0.00 | $0 | 0 | Dec 11, 2025 |
| Oct 17, 2025 | JAMF Jamf Holding Corp. | SOpen-market sale Common Stock | -43,650 | $9.88 | $431k | 1,480,451 | Oct 20, 2025 |
| Jun 5, 2025 | JAMF Jamf Holding Corp. | SOpen-market sale Common Stock | -16,125 | $10.75 | $173k | 1,524,101 | Jun 6, 2025 |
| May 8, 2025 | PRO PROS Holdings, Inc. | MOption exercise Common Stock | +3,614 | $16.87 | $61k | 3,614 | May 12, 2025 |
| May 8, 2025 | PRO PROS Holdings, Inc. | MOption exercise Restricted Stock Unitsderivative | -3,614 | $0.00 | $0 | 0 | May 12, 2025 |
| May 8, 2025 | PRO PROS Holdings, Inc. | AGrant or award Restricted Stock Unitsderivative | +11,262 | $0.00 | $0 | 11,262 | May 12, 2025 |
| Mar 19, 2025 | JAMF Jamf Holding Corp. | SOpen-market sale Common Stock | -56,170 | $13.59 | $763k | 1,540,226 | Mar 21, 2025 |
| Mar 15, 2025 | JAMF Jamf Holding Corp. | AGrant or award Common Stock | +607,441 | $0.00 | $0 | 1,596,396 | Mar 18, 2025 |
| Dec 2, 2024 | PRO PROS Holdings, Inc. | AGrant or award Common Stockderivative | +3,614 | $0.00 | $0 | 3,614 | Dec 3, 2024 |
| Oct 15, 2024 | JAMF Jamf Holding Corp. | FTax withholding Common Stock | -44,215 | $16.77 | $741k | 988,955 | Oct 17, 2024 |
Questions about John Strosahl
Answered from the filings on this page, as of the latest one.
Is John Strosahl buying or selling?
In the last 12 months John Strosahl reported 0 open-market buys worth $0 and 1 open-market sell worth $431k on SEC Form 4; the latest was sold $431k of JAMF on Oct 17, 2025. Grants, option exercises and tax withholding are not counted.
How did John Strosahl's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and John Strosahl has 0.
Where does John Strosahl file Form 4?
John Strosahl has filed Form 4 at JAMF (Jamf Holding Corp.) as CEO; PRO (PROS Holdings, Inc.). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.