MASI
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No open-market insider trades stored for MASI in the last 90 days. The full filing history below may still show grants, exercises, or older activity.
Recent filings
How to read this
- Filed
- Date the Form 4 was filed with the SEC. Insiders must file within 2 business days of the trade.
- Ticker
- The issuer's stock symbol. Select it to open that company's insider-activity page.
- Issuer
- The company whose shares were traded.
- Sector
- The issuer's industry (SEC SIC classification). Select a value to filter to that sector.
- Insider
- The reporting person: an officer, director, or 10% owner. Select a name to see all of their trades.
- Role
- The insider's relationship to the company: director, officer, or 10% owner.
- Code
- SEC transaction code describing the kind of transaction. Full official definitions are under “Transaction codes” below. A dot marks an open-market trade (P/S), the highest-conviction signal.
- Side
- Direction of the trade, from the filing's Acquired (A) ▲ / Disposed of (D) ▼ field: a buy or a sell.
- 10b5-1
- Trade made under a pre-arranged Rule 10b5-1 plan: scheduled in advance, not a discretionary decision (generally lower signal).
- Shares
- Number of shares in this transaction.
- Price
- Reported price per share. Blank for grants, gifts, and other trades with no stated price.
- Value
- Transaction value = shares × price. Left blank for grants, option exercises, gifts, and conversions, which have no cash price (see Own Δ for their impact).
- Owned after
- Form 4 column “Amount of Securities Beneficially Owned Following Reported Transaction(s)”: shares the insider held (directly or indirectly) immediately after this trade.
- Own Δ
- How much this trade changed the insider's own holding versus what they held just before it (not a share of the company). +45% grew it by 45%, 2.0× more than doubled it, −100% sold the entire stake, “new” built a position from nothing.
- Co. Δ
- Change in the insider's stake as a share of the whole company from this trade (transaction shares ÷ shares outstanding). The “(now …)” figure is their resulting total stake. Based on the latest reported shares outstanding; blank when unavailable.
- D/I
- Form 4 column “Ownership Form: Direct (D) or Indirect (I)”. Indirect holdings (for example, through a trust, fund, or family member) are detailed in the filing's “Nature of Indirect Beneficial Ownership.”
- Lag
- Days from the trade date to the filing date (Form 4 is due within 2 business days).
Transaction codes
Verbatim from the SEC's General Instructions for Forms 3, 4 and 5.
- P
- Open market or private purchase of non-derivative or derivative security
- S
- Open market or private sale of non-derivative or derivative security
- A
- Grant, award or other acquisition pursuant to Rule 16b-3(d)
- D
- Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e)
- F
- Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3
- M
- Exercise or conversion of derivative security exempted pursuant to Rule 16b-3
- G
- Bona fide gift
- C
- Conversion of derivative security
- X
- Exercise of in-the-money or at-the-money derivative security
- J
- Other acquisition or disposition (describe transaction)
| Filed ↓Date the Form 4 was filed with the SEC (due within 2 business days of the trade). | Insider | Role | CodeSEC transaction code describing the kind of transaction. See “How to read this” above for the official SEC definition of each code. The dot marks an open-market trade (P/S). | SideDirection of the trade: a buy (acquired ▲) or a sell (disposed ▼). | Shares | PriceReported price per share. Blank for trades with no stated price. | ValueTransaction value = shares × price. Left blank for grants, option exercises, gifts, and conversions, which have no cash price (see Own Δ). | Owned afterShares the insider held (directly or indirectly) immediately after this trade. | Own ΔHow much this trade changed the insider's own holding versus what they held just before it (not a share of the company). +45% grew it by 45%, 2.0× more than doubled it, −100% sold the entire stake, “new” built a position from nothing. | Co. ΔChange in the insider's stake as a share of the whole company from this trade (transaction shares ÷ shares outstanding). The “(now …)” figure is their resulting total stake in the company. Based on the latest reported shares outstanding; blank when unavailable. | Link to SEC filing |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-06-12 | Solomon Darlene J. S. | Director | D | ▼ sell | 1,119→ 1,119 Common Stock | — | — | 0 | — | — | filing |
| 2026-06-12 | Solomon Darlene J. S. | Director | D | ▼ sell | 3,0150 | $180.00 | $542.7K | 0 | −100% | −<0.01% (now 0%) | filing |
| 2026-06-12 | Scannell Timothy J | Director | D | ▼ sell | 1,119→ 1,119 Common Stock | — | — | 0 | — | — | filing |
| 2026-06-12 | Scannell Timothy J | Director | D | ▼ sell | 2,6080 | $180.00 | $469.4K | 0 | −100% | −<0.01% (now 0%) | filing |
| 2026-06-12 | Sampath Anand | Officer (EVP, Operations) | D | ▼ sell | 3,855→ 3,855 Common Stock | $22.47 | $86.6K | 0 | — | — | filing |
| 2026-06-12 | Sampath Anand | Officer (EVP, Operations) | D | ▼ sell | 4,422→ 4,422 Common Stock | $0.58 | $2.6K | 0 | — | — | filing |
| 2026-06-12 | Sampath Anand | Officer (EVP, Operations) | D | ▼ sell | 7,235→ 7,235 Common Stock | $46.50 | $336.4K | 0 | — | — | filing |
| 2026-06-12 | Sampath Anand | Officer (EVP, Operations) | D | ▼ sell | 10,000→ 10,000 Common Stock | $93.05 | $930.5K | 0 | — | — | filing |
| 2026-06-12 | Sampath Anand | Officer (EVP, Operations) | D | ▼ sell | 10,000→ 10,000 Common Stock | $89.13 | $891.3K | 0 | — | — | filing |
| 2026-06-12 | Sampath Anand | Officer (EVP, Operations) | D | ▼ sell | 6,840→ 6,840 Common Stock | — | — | 0 | — | — | filing |
| 2026-06-12 | Sampath Anand | Officer (EVP, Operations) | D | ▼ sell | 4,828→ 4,828 Common Stock | — | — | 0 | — | — | filing |
| 2026-06-12 | Sampath Anand | Officer (EVP, Operations) | D | ▼ sell | 5,158→ 5,158 Common Stock | — | — | 0 | — | — | filing |
| 2026-06-12 | Sampath Anand | Officer (EVP, Operations) | D | ▼ sell | 1,820→ 1,820 Common Stock | — | — | 0 | — | — | filing |
| 2026-06-12 | Sampath Anand | Officer (EVP, Operations) | D | ▼ sell | 33,9010 | $180.00 | $6.10M | 0 | −100% | −0.06% (now 0%) | filing |
| 2026-06-12 | Meehan Greg Allen | Officer (Chief Commercial Officer) | D | ▼ sell | 5,801→ 5,801 Common Stock | $180.00 | $1.04M | 0 | — | — | filing |
| 2026-06-12 | Meehan Greg Allen | Officer (Chief Commercial Officer) | D | ▼ sell | 4,306→ 4,306 Common Stock | $24.87 | $107.1K | 0 | — | — | filing |
| 2026-06-12 | Meehan Greg Allen | Officer (Chief Commercial Officer) | D | ▼ sell | 8,550→ 8,550 Common Stock | — | — | 0 | — | — | filing |
| 2026-06-12 | Meehan Greg Allen | Officer (Chief Commercial Officer) | D | ▼ sell | 1,933→ 1,933 Common Stock | — | — | 0 | — | — | filing |
| 2026-06-12 | Young Micah W | Officer (EVP, Chief Financial Officer) | D | ▼ sell | 10,485→ 10,485 Common Stock | $180.00 | $1.89M | 0 | — | — | filing |
| 2026-06-12 | Young Micah W | Officer (EVP, Chief Financial Officer) | D | ▼ sell | 16,898→ 16,898 Common Stock | $180.00 | $3.04M | 0 | — | — | filing |
| 2026-06-12 | Young Micah W | Officer (EVP, Chief Financial Officer) | D | ▼ sell | 7,739→ 7,739 Common Stock | $13.48 | $104.3K | 0 | — | — | filing |
| 2026-06-12 | Young Micah W | Officer (EVP, Chief Financial Officer) | D | ▼ sell | 11,954→ 11,954 Common Stock | $53.51 | $639.7K | 0 | — | — | filing |
| 2026-06-12 | Young Micah W | Officer (EVP, Chief Financial Officer) | D | ▼ sell | 6,362→ 6,362 Common Stock | $22.47 | $143.0K | 0 | — | — | filing |
| 2026-06-12 | Young Micah W | Officer (EVP, Chief Financial Officer) | D | ▼ sell | 6,633→ 6,633 Common Stock | $0.58 | $3.8K | 0 | — | — | filing |
| 2026-06-12 | Young Micah W | Officer (EVP, Chief Financial Officer) | D | ▼ sell | 5,788→ 5,788 Common Stock | $46.50 | $269.1K | 0 | — | — | filing |
| 2026-06-12 | Young Micah W | Officer (EVP, Chief Financial Officer) | D | ▼ sell | 4,175→ 4,175 Common Stock | $93.05 | $388.5K | 0 | — | — | filing |
| 2026-06-12 | Young Micah W | Officer (EVP, Chief Financial Officer) | D | ▼ sell | 20,000→ 20,000 Common Stock | $95.03 | $1.90M | 0 | — | — | filing |
| 2026-06-12 | Young Micah W | Officer (EVP, Chief Financial Officer) | D | ▼ sell | 17,671→ 17,671 Common Stock | — | — | 0 | — | — | filing |
| 2026-06-12 | Young Micah W | Officer (EVP, Chief Financial Officer) | D | ▼ sell | 2,622→ 2,622 Common Stock | — | — | 0 | — | — | filing |
| 2026-06-12 | Young Micah W | Officer (EVP, Chief Financial Officer) | D | ▼ sell | 25,6560 | $180.00 | $4.62M | 0 | −100% | −0.05% (now 0%) | filing |
| 2026-06-12 | Szyman Catherine M. | Director, Officer (Chief Executive Officer) | D | ▼ sell | 49,243→ 49,243 Common Stock | $180.00 | $8.86M | 0 | — | — | filing |
| 2026-06-12 | Szyman Catherine M. | Director, Officer (Chief Executive Officer) | D | ▼ sell | 18,617→ 18,617 Common Stock | $13.48 | $251.0K | 0 | — | — | filing |
| 2026-06-12 | Szyman Catherine M. | Director, Officer (Chief Executive Officer) | D | ▼ sell | 39,904→ 39,904 Common Stock | — | — | 0 | — | — | filing |
| 2026-06-12 | Szyman Catherine M. | Director, Officer (Chief Executive Officer) | D | ▼ sell | 6,306→ 6,306 Common Stock | — | — | 0 | — | — | filing |
| 2026-06-12 | Szyman Catherine M. | Director, Officer (Chief Executive Officer) | D | ▼ sell | 22,283→ 22,283 Common Stock | — | — | 0 | — | — | filing |
| 2026-06-12 | Szyman Catherine M. | Director, Officer (Chief Executive Officer) | D | ▼ sell | 7,6050 | $180.00 | $1.37M | 0 | −100% | −0.01% (now 0%) | filing |
| 2026-06-12 | LANE WENDY E | Director | D | ▼ sell | 1,119→ 1,119 Common Stock | — | — | 0 | — | — | filing |
| 2026-06-12 | LANE WENDY E | Director | D | ▼ sell | 2,6080 | $180.00 | $469.4K | 0 | −100% | −<0.01% (now 0%) | filing |
| 2026-06-12 | Politan Capital Management LP +3 more | Director by deputization | J | ▼ sell | 130,869→ 130,869 Common Stock | — | — | 0 | — | — | filing |
| 2026-06-12 | Politan Capital Management LP +3 more | Director by deputization | J | ▼ sell | 142,681→ 142,681 Common Stock | — | — | 0 | — | — | filing |
| 2026-06-12 | Politan Capital Management LP +3 more | Director by deputization | D | ▼ sell | 1,119→ 1,119 Common Stock | — | — | 0 | — | — | filing |
| 2026-06-12 | Politan Capital Management LP +3 more | Director by deputization | D | ▼ sell | 4,590,8730 | $180.00 | $826.36M | 0 | −100% | −8.8% (now 0%) | filing |
| 2026-06-12 | Hellmann Elisabeth A | Officer (Chief Human Resources Officer) | D | ▼ sell | 4,020→ 4,020 Common Stock | $180.00 | $723.6K | 0 | — | — | filing |
| 2026-06-12 | Hellmann Elisabeth A | Officer (Chief Human Resources Officer) | D | ▼ sell | 2,873→ 2,873 Common Stock | $30.76 | $88.4K | 0 | — | — | filing |
| 2026-06-12 | Hellmann Elisabeth A | Officer (Chief Human Resources Officer) | D | ▼ sell | 5,985→ 5,985 Common Stock | — | — | 0 | — | — | filing |
| 2026-06-12 | Hellmann Elisabeth A | Officer (Chief Human Resources Officer) | D | ▼ sell | 1,005→ 1,005 Common Stock | — | — | 0 | — | — | filing |
| 2026-06-12 | Hellmann Elisabeth A | Officer (Chief Human Resources Officer) | D | ▼ sell | 2140 | $180.00 | $38.5K | 0 | −100% | −<0.01% (now 0%) | filing |
| 2026-06-12 | Hataishi Paul | Officer (SVP, Chief Accounting Officer) | D | ▼ sell | 3,134→ 3,134 Common Stock | — | — | 0 | — | — | filing |
| 2026-06-12 | Hataishi Paul | Officer (SVP, Chief Accounting Officer) | D | ▼ sell | 3,380→ 3,380 Common Stock | — | — | 0 | — | — | filing |
| 2026-06-12 | Hataishi Paul | Officer (SVP, Chief Accounting Officer) | D | ▼ sell | 3,224→ 3,224 Common Stock | — | — | 0 | — | — | filing |
| 2026-06-12 | Hataishi Paul | Officer (SVP, Chief Accounting Officer) | D | ▼ sell | 910→ 910 Common Stock | — | — | 0 | — | — | filing |
| 2026-06-12 | Hataishi Paul | Officer (SVP, Chief Accounting Officer) | D | ▼ sell | 627→ 627 Common Stock | — | — | 0 | — | — | filing |
| 2026-06-12 | Hataishi Paul | Officer (SVP, Chief Accounting Officer) | D | ▼ sell | 13,3170 | $180.00 | $2.40M | 0 | −100% | −0.03% (now 0%) | filing |
| 2026-06-12 | Dadswell Charles | Officer (EVP, General Counsel) | D | ▼ sell | 10,261→ 10,261 Common Stock | — | — | 0 | — | — | filing |
| 2026-06-12 | Dadswell Charles | Officer (EVP, General Counsel) | D | ▼ sell | 11,886→ 11,886 Common Stock | — | — | 0 | — | — | filing |
| 2026-06-12 | Brennan Michelle | Director, Chairman of the Board | D | ▼ sell | 1,119→ 1,119 Common Stock | — | — | 0 | — | — | filing |
| 2026-06-12 | Brennan Michelle | Director, Chairman of the Board | D | ▼ sell | 9,3090 | $180.00 | $1.68M | 0 | −100% | −0.02% (now 0%) | filing |
| 2026-06-12 | Benner Tim | Officer (Chief Marketing Officer) | D | ▼ sell | 3,490→ 3,490 Common Stock | $180.00 | $628.2K | 0 | — | — | filing |
| 2026-06-12 | Benner Tim | Officer (Chief Marketing Officer) | D | ▼ sell | 2,537→ 2,537 Common Stock | $8.12 | $20.6K | 0 | — | — | filing |
| 2026-06-12 | Benner Tim | Officer (Chief Marketing Officer) | D | ▼ sell | 6,128→ 6,128 Common Stock | — | — | 0 | — | — | filing |
| 2026-06-12 | Benner Tim | Officer (Chief Marketing Officer) | D | ▼ sell | 1,163→ 1,163 Common Stock | — | — | 0 | — | — | filing |
| 2026-05-05 | Scannell Timothy J | Director | A | ▲ buy | 1,119→ 1,119 Common Stock | $178.71 | $200.0K | 2,238 | — | — | filing |
| 2026-05-05 | Scannell Timothy J | Director | M | ▼ sell | 1,225→ 1,225 Common Stock | — | — | 0 | — | — | filing |
| 2026-05-05 | Scannell Timothy J | Director | M | ▲ buy | 1,2250 | — | — | 2,608 | +89% | +<0.01% (now <0.01%) | filing |
| 2026-05-05 | LANE WENDY E | Director | A | ▲ buy | 1,119→ 1,119 Common Stock | $178.71 | $200.0K | 2,238 | — | — | filing |
| 2026-05-05 | LANE WENDY E | Director | M | ▼ sell | 1,225→ 1,225 Common Stock | — | — | 0 | — | — | filing |
| 2026-05-05 | LANE WENDY E | Director | M | ▲ buy | 1,2250 | — | — | 2,608 | +89% | +<0.01% (now <0.01%) | filing |
| 2026-05-05 | Hellmann Elisabeth A | Officer (Chief Human Resources Officer) | M | ▼ sell | 335→ 335 Common Stock | — | — | 1,005 | — | — | filing |
| 2026-05-05 | Hellmann Elisabeth A | Officer (Chief Human Resources Officer) | F | ▼ sell | 1210 | $178.43 | $21.6K | 214 | −36% | −<0.01% (now <0.01%) | filing |
| 2026-05-05 | Hellmann Elisabeth A | Officer (Chief Human Resources Officer) | M | ▲ buy | 3350 | — | — | 335 | new | +<0.01% (now <0.01%) | filing |
| 2026-05-05 | Brennan Michelle | Director, Chairman of the Board | A | ▲ buy | 1,119→ 1,119 Common Stock | $178.71 | $200.0K | 2,238 | — | — | filing |
| 2026-05-05 | Brennan Michelle | Director, Chairman of the Board | M | ▼ sell | 1,225→ 1,225 Common Stock | — | — | 0 | — | — | filing |
| 2026-05-05 | Brennan Michelle | Director, Chairman of the Board | M | ▲ buy | 1,2250 | — | — | 8,543 | +17% | +<0.01% (now 0.02%) | filing |
Up to 200 most recent filings · select a heading to sort, or open “How to read this” above for definitions · this company on SEC EDGAR.