Katherine Elizabeth Dietze
CIK 1082841 · View on SEC EDGAR ↗
Insider
First SEC filing: March 13, 2026 · Latest: March 13, 2026
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 49 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 |
|---|---|---|---|---|---|---|---|---|---|
| March 12, 2026 | MATW | A | 5,556 | — | — | 5,556 Direct | — | Acquired | (price as of 2026-08-21) |
| March 7, 2026 | MATW | M | 4,668 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-21) |
| March 7, 2026 | MATW | M | 4,668 | — | — | 49,103 Direct | +10.51% | Acquired | (price as of 2026-08-21) |
| March 13, 2025 | MATW | A | 6,228 | — | — | 6,228 Direct | — | Acquired | (price as of 2026-08-21) |
| March 9, 2025 | MATW | M | 3,777 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-21) |
| March 9, 2025 | MATW | M | 3,777 | — | — | 44,435 Direct | +9.29% | Acquired | (price as of 2026-08-21) |
| March 10, 2024 | MATW | M | 4,263 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-21) |
| March 10, 2024 | MATW | M | 4,263 | — | — | 40,658 Direct | +11.71% | Acquired | (price as of 2026-08-21) |
| March 7, 2024 | MATW | A | 4,668 | — | — | 4,668 Direct | — | Acquired | (price as of 2026-08-21) |
| March 11, 2023 | MATW | M | 2,988 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-21) |
| March 11, 2023 | MATW | M | 2,988 | — | — | 36,395 Direct | +8.94% | Acquired | (price as of 2026-08-21) |
| March 9, 2023 | MATW | A | 3,777 | — | — | 3,777 Direct | — | Acquired | (price as of 2026-08-21) |
| March 1, 2023 | 1466538 | D | 12,007 | $39.00 | $468,273 | 0 Direct | -100.00% | Disposed | |
| March 1, 2023 | 1466538 | D | 73,512 | $39.00 | $2,866,968 | 0 Direct | -100.00% | Disposed | |
| Aug. 30, 2022 | 1466538 | A | 5,831 | — | — | 85,414 Direct | +7.33% | Acquired | |
| March 12, 2022 | MATW | M | 5,639 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-21) |
| March 12, 2022 | MATW | M | 5,639 | — | — | 33,407 Direct | +20.31% | Acquired | (price as of 2026-08-21) |
| March 10, 2022 | MATW | A | 4,263 | — | — | 4,263 Direct | — | Acquired | (price as of 2026-08-21) |
| Oct. 27, 2021 | 1466538 | A | 3,587 | — | — | 79,583 Direct | +4.72% | Acquired | |
| March 14, 2021 | MATW | M | 3,291 | — | — | 27,768 Direct | +13.45% | Acquired | (price as of 2026-08-21) |
| March 14, 2021 | MATW | M | 3,291 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-21) |
| March 11, 2021 | MATW | A | 2,988 | — | — | 2,988 Direct | — | Acquired | (price as of 2026-08-21) |
| July 27, 2020 | 1466538 | A | 8,407 | — | — | 75,996 Direct | +12.44% | Acquired | |
| March 12, 2020 | MATW | A | 5,639 | — | — | 5,639 Direct | — | Acquired | (price as of 2026-08-21) |
| July 24, 2019 | 1466538 | A | 7,172 | — | — | 67,589 Direct | +11.87% | Acquired | |
| March 14, 2019 | MATW | A | 3,291 | — | — | 3,291 Direct | — | Acquired | (price as of 2026-08-21) |
| July 31, 2018 | 1466538 | A | 7,153 | — | — | 60,417 Direct | +13.43% | Acquired | |
| March 8, 2018 | MATW | A | 2,301 | — | — | 24,477 Direct | +10.38% | Acquired | (price as of 2026-08-21) |
| June 22, 2017 | 1466538 | A | 6,591 | — | — | 53,264 Direct | +14.12% | Acquired | |
| March 9, 2017 | MATW | A | 1,887 | — | — | 22,176 Direct | +9.30% | Acquired | (price as of 2026-08-21) |
| June 27, 2016 | 1466538 | A | 26,355 | — | — | 186,693 Direct | +16.44% | Acquired | |
| March 10, 2016 | MATW | A | 2,246 | — | — | 20,289 Direct | +12.45% | Acquired | (price as of 2026-08-21) |
| April 27, 2015 | 1466538 | A | 18,058 | — | — | 160,338 Direct | +12.69% | Acquired | |
| March 12, 2015 | MATW | A | 2,295 | — | — | 18,043 Direct | +14.57% | Acquired | (price as of 2026-08-21) |
| May 5, 2014 | 1466538 | A | 20,091 | — | — | 142,280 Direct | +16.44% | Acquired | |
| March 13, 2014 | MATW | A | 2,479 | — | — | 15,748 Direct | +18.68% | Acquired | (price as of 2026-08-21) |
| May 2, 2013 | 1466538 | A | 28,140 | — | — | 122,230 Direct | +29.91% | Acquired | |
| March 14, 2013 | MATW | A | 2,872 | — | — | 13,269 Direct | +27.62% | Acquired | (price as of 2026-08-21) |
| May 4, 2012 | 1466538 | A | 27,174 | — | — | 94,049 Direct | +40.63% | Acquired | |
| March 8, 2012 | MATW | A | 2,589 | — | — | 10,397 Direct | +33.16% | Acquired | (price as of 2026-08-21) |
| Sept. 22, 2011 | 1466538 | A | 18,845 | — | — | 66,875 Direct | +39.24% | Acquired | |
| June 28, 2011 | 1089044 | D | 48,127 | — | — | 0 Direct | -100.00% | Disposed | |
| March 10, 2011 | MATW | A | 2,233 | — | — | 7,808 Direct | +40.05% | Acquired | (price as of 2026-08-21) |
| June 3, 2010 | 1089044 | J | 21,626 | — | — | 48,127 Direct | +81.60% | Acquired | |
| March 11, 2010 | MATW | A | 2,045 | — | — | 5,575 Direct | +57.93% | Acquired | (price as of 2026-08-21) |
| March 17, 2009 | 1089044 | J | 12,058 | — | — | 26,501 Direct | +83.49% | Acquired | |
| March 12, 2009 | MATW | A | 2,230 | — | — | 3,530 Direct | +171.54% | Acquired | (price as of 2026-08-21) |
| Nov. 19, 2008 | MATW | M | 1,300 | $39.67 | $51,571 | 1,300 Direct | — | Acquired | -44.6% (price as of 2026-08-21) |
| March 25, 2008 | 1089044 | J | 14,443 | — | — | 14,443 Direct | — | Acquired |
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 12, 2026 | MATW | Restricted Share Units | Class A Common Stock | — | — | 5,556 | Acquired |
| March 7, 2026 | MATW | Restricted Share Units | Class A Common Stock (4,668) | $0.00 | — | 4,668 | Disposed |
| March 13, 2025 | MATW | Restricted Share Units | Class A Common Stock | — | — | 6,228 | Acquired |
| March 9, 2025 | MATW | Restricted Share Units | Class A Common Stock (3,777) | $0.00 | — | 3,777 | Disposed |
| March 10, 2024 | MATW | Restricted Share Units | Class A Common Stock (4,263) | $0.00 | — | 4,263 | Disposed |
| March 7, 2024 | MATW | Restricted Share Units | Class A Common Stock | — | — | 4,668 | Acquired |
| March 11, 2023 | MATW | Restricted Share Units | Class A Common Stock (2,988) | $0.00 | — | 2,988 | Disposed |
| March 9, 2023 | MATW | Restricted Share Units | Class A Common Stock | — | — | 3,777 | Acquired |
| March 12, 2022 | MATW | Restricted Share Units | Class A Common Stock (5,639) | $0.00 | — | 5,639 | Disposed |
| March 10, 2022 | MATW | Restricted Share Units | Class A Common Stock | — | — | 4,263 | Acquired |
| March 14, 2021 | MATW | Restricted Share Units | Class A Common Stock (3,291) | $0.00 | — | 3,291 | Disposed |
| March 11, 2021 | MATW | Restricted Share Units | Class A Common Stock | — | — | 2,988 | Acquired |
| March 12, 2020 | MATW | Restricted Share Units | Class A Common Stock | — | — | 5,639 | Acquired |
| March 14, 2019 | MATW | Restricted Share Units | Class A Common Stock | — | — | 3,291 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| July 29, 2008 | MATW | Class A Common Stock | 0 | Direct |