Steven R. Bower
First SEC filing: Feb. 20, 2015 · Latest: Feb. 20, 2015
Insider at
Insider transactions
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| March 2, 2026 | NPO | M | 1,551 | $53.78 | $83,413 | 5,202 Direct | +42.48% | Acquired | 518.9% (price as of 2026-10-05) |
| March 2, 2026 | NPO | S | 507 | $265.15 | $134,431 | 4,695 Direct | -9.75% | Disposed | 25.5% (price as of 2026-10-05) |
| March 2, 2026 | NPO | M | 1,551 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Feb. 23, 2026 | NPO | A | 766 | · | · | 766 Direct | · | Acquired | (price as of 2026-10-05) |
| Feb. 16, 2026 | NPO | A | 935 | · | · | 3,736 Direct | +33.38% | Acquired | (price as of 2026-10-05) |
| Feb. 16, 2026 | NPO | M | 280 | · | · | 4,016 Direct | +7.49% | Acquired | (price as of 2026-10-05) |
| Feb. 16, 2026 | NPO | F | 365 | $272.63 | $99,510 | 3,651 Direct | -9.09% | Disposed | 22.1% (price as of 2026-10-05) |
| Feb. 16, 2026 | NPO | M | 280 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Feb. 15, 2026 | NPO | M | 217 | · | · | 2,858 Direct | +8.22% | Acquired | (price as of 2026-10-05) |
| Feb. 15, 2026 | NPO | F | 57 | $272.63 | $15,540 | 2,801 Direct | -1.99% | Disposed | 22.1% (price as of 2026-10-05) |
| Feb. 15, 2026 | NPO | M | 217 | · | · | 218 Direct | -49.89% | Disposed | (price as of 2026-10-05) |
| Feb. 13, 2026 | NPO | M | 191 | · | · | 2,691 Direct | +7.64% | Acquired | (price as of 2026-10-05) |
| Feb. 13, 2026 | NPO | F | 50 | $271.21 | $13,560 | 2,641 Direct | -1.86% | Disposed | 22.7% (price as of 2026-10-05) |
| Feb. 13, 2026 | NPO | M | 191 | · | · | 385 Direct | -33.16% | Disposed | (price as of 2026-10-05) |
| Feb. 12, 2026 | NPO | A | 442 | $246.91 | $109,134 | 442 Direct | · | Acquired | 34.8% (price as of 2026-10-05) |
| Aug. 22, 2025 | NPO | M | 2,500 | $53.78 | $134,450 | 2,500 Direct | · | Acquired | 518.9% (price as of 2026-10-05) |
| Aug. 22, 2025 | NPO | M | 2,500 | $53.78 | $134,450 | 1,551 Direct | -61.71% | Disposed | 518.9% (price as of 2026-10-05) |
| Feb. 25, 2025 | NPO | S | 997 | $199.66 | $199,061 | 0 Direct | -100.00% | Disposed | 66.7% (price as of 2026-10-05) |
| Feb. 25, 2025 | NPO | A | 999 | · | · | 999 Direct | · | Acquired | (price as of 2026-10-05) |
| Feb. 16, 2025 | NPO | M | 278 | · | · | 1,071 Direct | +35.06% | Acquired | (price as of 2026-10-05) |
| Feb. 16, 2025 | NPO | F | 74 | $192.96 | $14,279 | 997 Direct | -6.91% | Disposed | 72.5% (price as of 2026-10-05) |
| Feb. 16, 2025 | NPO | M | 278 | · | · | 280 Direct | -49.82% | Disposed | (price as of 2026-10-05) |
| Feb. 15, 2025 | NPO | M | 294 | · | · | 721 Direct | +68.85% | Acquired | (price as of 2026-10-05) |
| Feb. 15, 2025 | NPO | M | 217 | · | · | 938 Direct | +30.10% | Acquired | (price as of 2026-10-05) |
| Feb. 15, 2025 | NPO | F | 145 | $192.96 | $27,979 | 793 Direct | -15.46% | Disposed | 72.5% (price as of 2026-10-05) |
| Feb. 15, 2025 | NPO | M | 294 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Feb. 15, 2025 | NPO | M | 217 | · | · | 435 Direct | -33.28% | Disposed | (price as of 2026-10-05) |
| Feb. 13, 2025 | NPO | A | 576 | $182.27 | $104,988 | 576 Direct | · | Acquired | 82.6% (price as of 2026-10-05) |
| Jan. 2, 2025 | NPO | M | 342 | · | · | 472 Direct | +263.08% | Acquired | (price as of 2026-10-05) |
| Jan. 2, 2025 | NPO | F | 45 | $172.45 | $7,760 | 427 Direct | -9.53% | Disposed | 93.0% (price as of 2026-10-05) |
| Jan. 2, 2025 | NPO | F | 177 | $172.45 | $30,524 | 342 Direct | -34.10% | Disposed | 93.0% (price as of 2026-10-05) |
| Jan. 2, 2025 | NPO | M | 342 | $172.45 | $58,978 | 0 Direct | -100.00% | Disposed | 93.0% (price as of 2026-10-05) |
| Nov. 14, 2024 | NPO | G | 174 | · | · | 430 Direct | -28.81% | Disposed | (price as of 2026-10-05) |
| Nov. 14, 2024 | NPO | S | 300 | $162.50 | $48,750 | 130 Direct | -69.77% | Disposed | 104.8% (price as of 2026-10-05) |
| Aug. 9, 2024 | NPO | S | 1,548 | $150.06 | $232,293 | 604 Direct | -71.93% | Disposed | 121.8% (price as of 2026-10-05) |
| May 17, 2024 | NPO | S | 1,031 | $150.00 | $154,650 | 2,152 Direct | -32.39% | Disposed | 121.9% (price as of 2026-10-05) |
| Feb. 28, 2024 | NPO | A | 1,148 | · | · | 1,148 Direct | · | Acquired | (price as of 2026-10-05) |
| Feb. 27, 2024 | NPO | A | 1,148 | · | · | 1,148 Direct | · | Acquired | (price as of 2026-10-05) |
| Feb. 16, 2024 | NPO | M | 806 | · | · | 3,238 Direct | +33.14% | Acquired | (price as of 2026-10-05) |
| Feb. 16, 2024 | NPO | M | 278 | · | · | 3,516 Direct | +8.59% | Acquired | (price as of 2026-10-05) |
| Feb. 16, 2024 | NPO | F | 333 | $164.91 | $54,915 | 3,183 Direct | -9.47% | Disposed | 101.8% (price as of 2026-10-05) |
| Feb. 16, 2024 | NPO | M | 806 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Feb. 16, 2024 | NPO | M | 278 | · | · | 558 Direct | -33.25% | Disposed | (price as of 2026-10-05) |
| Feb. 15, 2024 | NPO | M | 293 | · | · | 2,533 Direct | +13.08% | Acquired | (price as of 2026-10-05) |
| Feb. 15, 2024 | NPO | F | 101 | $158.55 | $16,014 | 2,432 Direct | -3.99% | Disposed | 109.9% (price as of 2026-10-05) |
| Feb. 15, 2024 | NPO | M | 293 | · | · | 294 Direct | -49.91% | Disposed | (price as of 2026-10-05) |
| Feb. 15, 2024 | NPO | A | 652 | $155.66 | $101,490 | 652 Direct | · | Acquired | 113.8% (price as of 2026-10-05) |
| Aug. 17, 2023 | NPO | G | 200 | · | · | 2,240 Direct | -8.20% | Disposed | (price as of 2026-10-05) |
| Aug. 16, 2023 | NPO | S | 1,000 | $131.57 | $131,570 | 2,440 Direct | -29.07% | Disposed | 153.0% (price as of 2026-10-05) |
| March 2, 2023 | NPO | A | 1,548 | · | · | 1,548 Direct | · | Acquired | (price as of 2026-10-05) |
| March 1, 2023 | NPO | S | 2,400 | $109.78 | $263,472 | 3,440 Direct | -41.10% | Disposed | 203.2% (price as of 2026-10-05) |
| Feb. 18, 2023 | NPO | M | 402 | · | · | 5,848 Direct | +7.38% | Acquired | (price as of 2026-10-05) |
| Feb. 18, 2023 | NPO | F | 8 | $119.61 | $957 | 5,840 Direct | -0.14% | Disposed | 178.3% (price as of 2026-10-05) |
| Feb. 18, 2023 | NPO | M | 402 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Feb. 16, 2023 | NPO | M | 802 | · | · | 5,505 Direct | +17.05% | Acquired | (price as of 2026-10-05) |
| Feb. 16, 2023 | NPO | F | 59 | $116.87 | $6,895 | 5,446 Direct | -1.07% | Disposed | 184.8% (price as of 2026-10-05) |
| Feb. 16, 2023 | NPO | M | 802 | · | · | 806 Direct | -49.88% | Disposed | (price as of 2026-10-05) |
| Feb. 16, 2023 | NPO | A | 836 | $116.69 | $97,553 | 836 Direct | · | Acquired | 185.3% (price as of 2026-10-05) |
| Feb. 15, 2023 | NPO | M | 293 | · | · | 4,726 Direct | +6.61% | Acquired | (price as of 2026-10-05) |
| Feb. 15, 2023 | NPO | F | 23 | $116.49 | $2,679 | 4,703 Direct | -0.49% | Disposed | 185.7% (price as of 2026-10-05) |
| Feb. 15, 2023 | NPO | M | 293 | · | · | 587 Direct | -33.30% | Disposed | (price as of 2026-10-05) |
| Nov. 7, 2022 | NPO | G | 500 | · | · | 4,433 Direct | -10.14% | Disposed | (price as of 2026-10-05) |
| March 4, 2022 | NPO | S | 1,308 | $106.29 | $139,027 | 4,933 Direct | -20.96% | Disposed | 213.2% (price as of 2026-10-05) |
| Feb. 24, 2022 | NPO | A | 1,794 | · | · | 1,794 Direct | · | Acquired | (price as of 2026-10-05) |
| Feb. 18, 2022 | NPO | M | 402 | · | · | 6,360 Direct | +6.75% | Acquired | (price as of 2026-10-05) |
| Feb. 18, 2022 | NPO | F | 119 | $111.09 | $13,220 | 6,241 Direct | -1.87% | Disposed | 199.6% (price as of 2026-10-05) |
| Feb. 18, 2022 | NPO | M | 402 | · | · | 402 Direct | -50.00% | Disposed | (price as of 2026-10-05) |
| Feb. 16, 2022 | NPO | M | 802 | · | · | 6,195 Direct | +14.87% | Acquired | (price as of 2026-10-05) |
| Feb. 16, 2022 | NPO | F | 237 | $110.86 | $26,274 | 5,958 Direct | -3.83% | Disposed | 200.3% (price as of 2026-10-05) |
| Feb. 16, 2022 | NPO | M | 802 | · | · | 1,608 Direct | -33.28% | Disposed | (price as of 2026-10-05) |
| Feb. 15, 2022 | NPO | A | 881 | · | · | 5,666 Direct | +18.41% | Acquired | (price as of 2026-10-05) |
| Feb. 15, 2022 | NPO | F | 273 | $108.39 | $29,590 | 5,393 Direct | -4.82% | Disposed | 207.1% (price as of 2026-10-05) |
| Feb. 15, 2022 | NPO | A | 880 | $105.64 | $92,963 | 880 Direct | · | Acquired | 215.1% (price as of 2026-10-05) |
| Feb. 12, 2022 | NPO | M | 705 | · | · | 5,030 Direct | +16.30% | Acquired | (price as of 2026-10-05) |
| Feb. 12, 2022 | NPO | F | 245 | $104.02 | $25,485 | 4,785 Direct | -4.87% | Disposed | 220.0% (price as of 2026-10-05) |
| Feb. 12, 2022 | NPO | M | 705 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Feb. 25, 2021 | NPO | A | 3,692 | · | · | 3,692 Direct | · | Acquired | (price as of 2026-10-05) |
| Feb. 18, 2021 | NPO | M | 401 | · | · | 4,466 Direct | +9.86% | Acquired | (price as of 2026-10-05) |
| Feb. 18, 2021 | NPO | F | 141 | $73.91 | $10,421 | 4,325 Direct | -3.16% | Disposed | 350.4% (price as of 2026-10-05) |
| Feb. 18, 2021 | NPO | M | 401 | · | · | 804 Direct | -33.28% | Disposed | (price as of 2026-10-05) |
| Feb. 16, 2021 | NPO | A | 2,410 | $76.82 | $185,136 | 2,410 Direct | · | Acquired | 333.3% (price as of 2026-10-05) |
| Feb. 12, 2021 | NPO | M | 547 | · | · | 4,257 Direct | +14.74% | Acquired | (price as of 2026-10-05) |
| Feb. 12, 2021 | NPO | F | 192 | $75.76 | $14,546 | 4,065 Direct | -4.51% | Disposed | 339.4% (price as of 2026-10-05) |
| Feb. 12, 2021 | NPO | M | 547 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| March 10, 2020 | NPO | P | 200 | $48.18 | $9,636 | 5,975 Indirect | +3.46% | Acquired | 590.9% (price as of 2026-10-05) |
| March 9, 2020 | NPO | P | 914 | $45.75 | $41,816 | 4,614 Indirect | +24.70% | Acquired | 627.6% (price as of 2026-10-05) |
| March 9, 2020 | NPO | P | 600 | $46.18 | $27,708 | 5,214 Indirect | +13.00% | Acquired | 620.8% (price as of 2026-10-05) |
| March 9, 2020 | NPO | P | 301 | $45.97 | $13,837 | 5,515 Indirect | +5.77% | Acquired | 624.1% (price as of 2026-10-05) |
| March 9, 2020 | NPO | P | 250 | $46.07 | $11,518 | 5,765 Indirect | +4.53% | Acquired | 622.5% (price as of 2026-10-05) |
| March 9, 2020 | NPO | P | 10 | $45.96 | $460 | 5,775 Indirect | +0.17% | Acquired | 624.2% (price as of 2026-10-05) |
| Feb. 27, 2020 | NPO | A | 4,051 | · | · | 4,051 Direct | · | Acquired | (price as of 2026-10-05) |
| Feb. 27, 2020 | NPO | A | 3,374 | · | · | 3,374 Direct | · | Acquired | (price as of 2026-10-05) |
| Feb. 18, 2020 | NPO | A | 1,205 | $61.14 | $73,674 | 1,205 Direct | · | Acquired | 444.4% (price as of 2026-10-05) |
| Feb. 13, 2020 | NPO | M | 601 | · | · | 3,791 Direct | +18.84% | Acquired | (price as of 2026-10-05) |
| Feb. 13, 2020 | NPO | M | 130 | · | · | 3,921 Direct | +3.43% | Acquired | (price as of 2026-10-05) |
| Feb. 13, 2020 | NPO | F | 211 | $59.60 | $12,576 | 3,710 Direct | -5.38% | Disposed | 458.5% (price as of 2026-10-05) |
| Feb. 13, 2020 | NPO | M | 601 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Feb. 13, 2020 | NPO | M | 130 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Aug. 6, 2019 | NPO | P | 1,300 | $63.95 | $83,135 | 3,300 Indirect | +65.00% | Acquired | 420.5% (price as of 2026-10-05) |
| Aug. 6, 2019 | NPO | P | 300 | $63.83 | $19,149 | 3,600 Indirect | +9.09% | Acquired | 421.5% (price as of 2026-10-05) |
Showing latest 100 of 125 transactions
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 |
|---|---|---|---|---|---|---|---|
| March 2, 2026 | NPO | Stock Option | Common Stock | $53.78 | · | 1,551 | Disposed |
| Feb. 23, 2026 | NPO | Stock Option | Common Stock | $275.37 | Feb. 23, 2036 | 766 | Acquired |
| Feb. 16, 2026 | NPO | Restricted Stock Units | Common Stock | · | Feb. 16, 2026 | 280 | Disposed |
| Feb. 15, 2026 | NPO | Restricted Stock Units | Common Stock | · | Feb. 15, 2027 | 217 | Disposed |
| Feb. 13, 2026 | NPO | Restricted Stock Units | Common Stock | · | Feb. 13, 2028 | 191 | Disposed |
| Feb. 12, 2026 | NPO | Restricted Stock Units | Common Stock | · | Feb. 12, 2029 | 442 | Acquired |
| Aug. 22, 2025 | NPO | Stock Option | Common Stock | $53.78 | · | 2,500 | Disposed |
| Feb. 25, 2025 | NPO | Stock Option | Common Stock | $199.78 | Feb. 25, 2035 | 999 | Acquired |
| Feb. 16, 2025 | NPO | Restricted Stock Units | Common Stock | · | Feb. 16, 2026 | 278 | Disposed |
| Feb. 15, 2025 | NPO | Restricted Stock Units | Common Stock | · | Feb. 15, 2025 | 294 | Disposed |
| Feb. 15, 2025 | NPO | Restricted Stock Units | Common Stock | · | Feb. 15, 2027 | 217 | Disposed |
| Feb. 13, 2025 | NPO | Restricted Stock Units | Common Stock | · | Feb. 13, 2028 | 576 | Acquired |
| Jan. 2, 2025 | NPO | Phantom Stock (MSPP) | Common Stock | · | Jan. 1, 2025 | 177 | Disposed |
| Jan. 2, 2025 | NPO | Phantom Stock (MSPP) | Common Stock | · | Jan. 1, 2025 | 342 | Disposed |
| Feb. 28, 2024 | NPO | Stock Option | Common Stock | $156.20 | Feb. 28, 2034 | 1,148 | Acquired |
| Feb. 27, 2024 | NPO | Stock Option | Common Stock | $156.20 | Feb. 27, 2034 | 1,148 | Acquired |
| Feb. 16, 2024 | NPO | Restricted Stock Units | Common Stock | · | Feb. 16, 2024 | 806 | Disposed |
| Feb. 16, 2024 | NPO | Restricted Stock Units | Common Stock | · | Feb. 16, 2026 | 278 | Disposed |
| Feb. 15, 2024 | NPO | Restricted Stock Units | Common Stock | · | Feb. 15, 2025 | 293 | Disposed |
| Feb. 15, 2024 | NPO | Restricted Stock Units | Common Stock | · | Feb. 15, 2027 | 652 | Acquired |
| March 2, 2023 | NPO | Stock Option | Common Stock | $110.73 | March 2, 2033 | 1,548 | Acquired |
| Feb. 18, 2023 | NPO | Restricted Stock Units | Common Stock | · | · | 402 | Disposed |
| Feb. 16, 2023 | NPO | Restricted Stock Units | Common Stock | · | Feb. 16, 2024 | 802 | Disposed |
| Feb. 16, 2023 | NPO | Restricted Stock Units | Common Stock | · | Feb. 16, 2026 | 836 | Acquired |
| Feb. 15, 2023 | NPO | Restricted Stock Units | Common Stock | · | Feb. 15, 2025 | 293 | Disposed |
| Feb. 24, 2022 | NPO | Stock Option | Common Stock | $106.54 | Feb. 24, 2032 | 1,794 | Acquired |
| Feb. 18, 2022 | NPO | Restricted Stock Units | Common Stock | · | · | 402 | Disposed |
| Feb. 16, 2022 | NPO | Restricted Stock Units | Common Stock | · | Feb. 16, 2024 | 802 | Disposed |
| Feb. 15, 2022 | NPO | Restricted Stock Units | Common Stock | · | Feb. 15, 2025 | 880 | Acquired |
| Feb. 12, 2022 | NPO | Restricted Stock Units | Common Stock | · | · | 705 | Disposed |
| Feb. 25, 2021 | NPO | Stock Option | Common Stock | $80.00 | Feb. 25, 2031 | 3,692 | Acquired |
| Feb. 18, 2021 | NPO | Restricted Stock Units | Common Stock | · | · | 401 | Disposed |
| Feb. 16, 2021 | NPO | Restricted Stock Units | Common Stock | · | Feb. 16, 2024 | 2,410 | Acquired |
| Feb. 12, 2021 | NPO | Restricted Stock Units | Common Stock | · | · | 547 | Disposed |
| Feb. 27, 2020 | NPO | Stock Option | Common Stock | $53.78 | · | 4,051 | Acquired |
| Feb. 27, 2020 | NPO | Stock Option | Common Stock | $53.78 | · | 3,374 | Acquired |
| Feb. 18, 2020 | NPO | Restricted Stock Units | Common Stock | · | · | 1,205 | Acquired |
| Feb. 13, 2020 | NPO | Restricted Stock Units | Common Stock | · | · | 601 | Disposed |
| Feb. 13, 2020 | NPO | Restricted Stock Units (MSPP) | Common Stock | · | · | 130 | Disposed |
| Feb. 23, 2019 | NPO | Restricted Stock Units | Common Stock | · | · | 825 | Disposed |
| Feb. 23, 2019 | NPO | Restricted Stock Units | Common Stock | · | · | 1,000 | Disposed |
| Feb. 12, 2019 | NPO | Restricted Stock Units | Common Stock | · | · | 705 | Acquired |
| Feb. 18, 2018 | NPO | Restricted Stock Units | Common Stock | · | · | 627 | Disposed |
| Feb. 12, 2018 | NPO | Restricted Stock Units | Common Stock | · | · | 547 | Acquired |
| Feb. 12, 2018 | NPO | Restricted Stock Units | Common Stock | · | · | 505 | Acquired |
| Feb. 13, 2017 | NPO | Phantom Stock (MSPP) | Common Stock | · | Jan. 1, 2025 | 519 | Acquired |
| Feb. 13, 2017 | NPO | Restricted Stock Units | Common Stock | · | · | 601 | Acquired |
| Feb. 13, 2017 | NPO | Restricted Stock Units (MSPP) | Common Stock | · | · | 130 | Acquired |
| Feb. 23, 2016 | NPO | Restricted Stock Units | Common Stock | · | · | 825 | Acquired |
| Feb. 23, 2016 | NPO | Restricted Stock Units | Common Stock | · | · | 1,000 | Acquired |
| Feb. 18, 2015 | NPO | Restricted Stock Units | Common Stock | · | · | 627 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2019 | $276,846 | · | · | · | $177,201 | · | $43,206 | $589,253 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.