Kathryn Arnold
CIK 1861350 · View on SEC EDGAR ↗
Insider
First SEC filing: Dec. 31, 2025 · Latest: Dec. 31, 2025
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 16 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Dec. 30, 2025 | NSPR | A | 55,556 | — | — | 303,087 Direct | +22.44% | Acquired | (price as of 2026-08-25) |
| Dec. 30, 2025 | NSPR | A | 26,276 | — | — | 111,221 Direct | +30.93% | Acquired | (price as of 2026-08-25) |
| Jan. 7, 2025 | NSPR | A | 32,491 | — | — | 247,531 Direct | +15.11% | Acquired | (price as of 2026-08-25) |
| Jan. 7, 2025 | NSPR | A | 14,836 | — | — | 84,945 Direct | +21.16% | Acquired | (price as of 2026-08-25) |
| Jan. 23, 2024 | NSPR | A | 29,032 | — | — | 215,040 Direct | +15.61% | Acquired | (price as of 2026-08-25) |
| Jan. 23, 2024 | NSPR | A | 11,098 | — | — | 70,109 Direct | +18.81% | Acquired | (price as of 2026-08-25) |
| Jan. 2, 2024 | NSPR | A | 1,661 | — | — | 186,008 Direct | +0.90% | Acquired | (price as of 2026-08-25) |
| Oct. 2, 2023 | NSPR | A | 1,364 | — | — | 184,347 Direct | +0.75% | Acquired | (price as of 2026-08-25) |
| July 1, 2023 | NSPR | A | 1,772 | — | — | 182,983 Direct | +0.98% | Acquired | (price as of 2026-08-25) |
| May 17, 2023 | NSPR | A | 149,260 | — | — | 181,211 Direct | +467.15% | Acquired | (price as of 2026-08-25) |
| May 17, 2023 | NSPR | A | 49,750 | — | — | 59,011 Direct | +537.20% | Acquired | (price as of 2026-08-25) |
| April 1, 2023 | NSPR | A | 4,167 | — | — | 31,951 Direct | +15.00% | Acquired | (price as of 2026-08-25) |
| Oct. 13, 2021 | NSPR | A | 17,248 | — | — | 27,784 Direct | +163.71% | Acquired | (price as of 2026-08-25) |
| Oct. 13, 2021 | NSPR | A | 5,749 | — | — | 5,749 Direct | — | Acquired | (price as of 2026-08-25) |
| May 10, 2021 | NSPR | A | 10,536 | — | — | 10,536 Direct | — | Acquired | (price as of 2026-08-25) |
| May 10, 2021 | NSPR | A | 3,512 | — | — | 3,512 Direct | — | Acquired | (price as of 2026-08-25) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Dec. 30, 2025 | NSPR | Options to purchase common stock (right to buy) | Common Stock (26,276) | $1.89 | Dec. 30, 2027 | 26,276 | Acquired |
| Jan. 7, 2025 | NSPR | Options to purchase common stock (right to buy) | Common Stock (14,836) | $2.71 | Jan. 7, 2035 | 14,836 | Acquired |
| Jan. 23, 2024 | NSPR | Options to purchase common stock (right to buy) | Common Stock (11,098) | $3.14 | Jan. 23, 2034 | 11,098 | Acquired |
| May 17, 2023 | NSPR | Options to purchase common stock (right to buy) | Common Stock (49,750) | $1.76 | May 17, 2033 | 49,750 | Acquired |
| Oct. 13, 2021 | NSPR | Options to purchase common stock (right to buy) | Common Stock (5,749) | $4.12 | Oct. 13, 2031 | 5,749 | Acquired |
| May 10, 2021 | NSPR | Option to Purchase Common Stock [F2] | Common Stock (3,512) | $4.74 | May 10, 2031 | 3,512 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).