MKS Inc
MKSI- Exchange
- Nasdaq
- Industry
- Industrial Instruments For Measurement, Display, and Control
- SEC CIK
- 0001049502
In the last 90 days, MKS Inc insiders filed 0 open-market purchases and 3 sales; 777 institutions reported holding it in 13F filings for Q2 2026, worth $31.3B in total; Maverick Capital is the only superinvestor holding it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by MKS Inc insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 3 filings
- 3 insiders, $3.23M in total
- Insiders trading
- 3
- Net value
- −$3.23M
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for MKS Inc, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Mora Elizabeth | Director | 18,845 | Sep 2, 2026 | 5 |
| Donlan Renee Martel | EVP, GC & CCO | – | Aug 18, 2026 | 1 |
| Lee John Tseng-Chung | President & CEO | 134,776 | Aug 17, 2026 | 6 |
| Williams John Edward | EVP & GM, PSD | 4,098 | Aug 4, 2026 | 5 |
| Schreiner James Alan | EVP & COO | 19,201 | Jun 16, 2026 | 6 |
| McCarthy Michelle M | SVP & Chief Accounting Officer | 2 | Jun 8, 2026 | 3 |
| Henry David Philip | EVP, Global Str Mktg & GM, MSD | 10,422 | Jun 2, 2026 | 5 |
| Colella Gerard G | Director | 20,017Indirect | May 28, 2026 | 3 |
| Donahue Joseph B | Director | 10,033 | May 28, 2026 | 2 |
| Mayampurath Ramakumar | EVP & CFO | 1 | May 26, 2026 | 4 |
| Cannone Peter III | Director | 7,794 | May 19, 2026 | 3 |
| Moloney Jacqueline F | Director | 8,775 | May 15, 2026 | 6 |
| Batra Raj | Director | 16,227 | May 12, 2026 | 1 |
| Burke Kathleen Flaherty | EVP, GC & Secretary | 49,439 | May 12, 2026 | 5 |
| Taranto Eric Robert | EVP & GM, VSD | 12,596 | May 12, 2026 | 5 |
| Jabre Wissam G | Director | 5,270 | May 12, 2026 | 1 |
| Warner Michelle M | Director | 10,852 | May 8, 2024 | 0 |
| Bagshaw Seth H | EVP, CFO & Treasurer | 1 | Feb 26, 2024 | 0 |
| Gitin Mark Milton | EVP & GM, PSD | 16,134 | Feb 16, 2024 | 0 |
| Carlyle Asia Partners IV, L.P. | 10% Owner | 6,482,732Indirect | May 10, 2023 | 0 |
| Carlyle Partners VI Cayman Holdings, L.P. | 10% Owner | 6,482,732Indirect | May 10, 2023 | 0 |
| Gamma Holding Co Ltd | 10% Owner | 6,482,732Indirect | May 10, 2023 | 0 |
| CEP IV Participations, S.a r.l. SICAR | 10% Owner | 6,482,732Indirect | May 10, 2023 | 0 |
| CEP IV Managing GP, L.P. | 10% Owner | 6,482,732Indirect | May 10, 2023 | 0 |
| CEP IV Managing GP Holdings, Ltd. | 10% Owner | 6,482,732Indirect | May 10, 2023 | 0 |
| CAP IV General Partner, L.P. | 10% Owner | 6,482,732Indirect | May 10, 2023 | 0 |
| Cap IV, L.L.C. | 10% Owner | 6,482,732Indirect | May 10, 2023 | 0 |
| TC Group Cayman Investment Holdings, L.P. | 10% Owner | 6,482,732Indirect | May 10, 2023 | 0 |
| Carlyle Group Inc. | 10% Owner | 6,482,732Indirect | May 10, 2023 | 0 |
| Carlyle Holdings II GP L.L.C. | 10% Owner | 6,482,732Indirect | May 10, 2023 | 0 |
| Carlyle Holdings II L.L.C. | 10% Owner | 6,482,732Indirect | May 10, 2023 | 0 |
| TC Group Cayman Investment Holdings Sub L.P. | 10% Owner | 6,482,732Indirect | May 10, 2023 | 0 |
| CG Subsidiary Holdings L.L.C. | 10% Owner | 6,482,732Indirect | May 10, 2023 | 0 |
| TC Group VI Cayman, L.L.C. | 10% Owner | 6,482,732Indirect | May 10, 2023 | 0 |
| TC Group VI Cayman, L.P. | 10% Owner | 6,482,732Indirect | May 10, 2023 | 0 |
| Wild Geoffrey | Director | 1,813 | Aug 18, 2022 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Jun 4, 2024 (view filing) | Jun 3 | 1 day | Mora ElizabethDirector | SSale | −275 | $129.41 | −$35.6K | −1.5%18.2K after | 10b5-1 |
| Apr 2, 2024 (view filing) | Apr 1 | 1 day | Mora ElizabethDirector | SSale | −250 | $133.00 | −$33.3K | −1.5%16.9K after | 10b5-1 |
| Mar 4, 2024 (view filing) | Mar 1 | 3 days | Moloney Jacqueline FDirector | SSale | −250 | $122.89 | −$30.7K | −2.7%9.16K after | 10b5-1 |
| Mar 4, 2024 (view filing) | Mar 1 | 3 days | Burke Kathleen FlahertyEVP, GC & Secretary | SSale | −7.41K | $122.89 | −$910.7K | −14.7%43.0K after | |
| Feb 26, 2024 (view filing) | Feb 22 | 4 days | Bagshaw Seth HEVP, CFO & Treasurer | SSale | −32.9K | $123.28 | −$4.05M | −100.0%0.79 after | 3 lots |
| Feb 20, 2024 (view filing) | Feb 16 | 4 days | Moloney Jacqueline FDirector | SSale | −1.92K | $124.10 | −$237.9K | −16.9%9.41K after | |
| Feb 12, 2024 (view filing) | Feb 9 | 3 days | Colella Gerard GDirector | SSale | −10.0K | $120.00 | −$1.20M | −12.8%68.0K after | 10b5-1 |
| Jan 23, 2024 (view filing) | Jan 22 | 1 day | Colella Gerard GDirector | SSale | −10.0K | $110.00 | −$1.10M | −11.4%78.0K after | 10b5-1 |
| Jan 3, 2024 (view filing) | Jan 2 | 1 day | Mora ElizabethDirector | SSale | −250 | $100.90 | −$25.2K | −1.4%17.1K after | 10b5-1 |
| Dec 4, 2023 (view filing) | Dec 1 | 3 days | Moloney Jacqueline FDirector | SSale | −250 | $82.23 | −$20.6K | −2.2%11.3K after | 10b5-1 |
| Nov 8, 2023 (view filing) | Nov 7 | 1 day | Henry David PhilipEVP, Operations & Corp Mktg | PPurchase | +2.50K | $68.34 | +$170.8K | +29.2%11.1K after | |
| Oct 3, 2023 (view filing) | Oct 2 | 1 day | Mora ElizabethDirector | SSale | −250 | $87.15 | −$21.8K | −1.4%17.4K after | 10b5-1 |
| Sep 7, 2023 (view filing) | Sep 6 | 1 day | Bagshaw Seth HEVP, CFO & Treasurer | SSale | −25.0K | $97.30 | −$2.43M | −54.9%20.5K after | 2 lots |
| Sep 1, 2023 (view filing) | Aug 31 | 1 day | Colella Gerard GDirector | SSale | −10.0K | $100.01 | −$1.00M | −10.2%88.0K after | 10b5-1 |
| Aug 29, 2023 (view filing) | Aug 28 | 1 day | Moloney Jacqueline FDirector | SSale | −250 | $95.26 | −$23.8K | −2.1%11.6K after | |
| Aug 8, 2023 (view filing) | Aug 7 | 1 day | Burke Kathleen FlahertyEVP, GC & Secretary | SSale | −11.6K | $101.23 | −$1.17M | −21.3%42.7K after | 2 lots |
| Jul 5, 2023 (view filing) | Jul 3 | 2 days | Mora ElizabethDirector | SSale | −250 | $108.49 | −$27.1K | −1.4%17.6K after | 10b5-1 |
| Jun 2, 2023 (view filing) | Jun 1 | 1 day | Mora ElizabethDirector | SSale | −200 | $97.16 | −$19.4K | −1.1%17.9K after | 10b5-1 |
| Jun 2, 2023 (view filing) | Jun 1 | 1 day | Moloney Jacqueline FDirector | SSale | −225 | $97.16 | −$21.9K | −1.9%11.8K after | 10b5-1 |
| May 10, 2023 (view filing)4:59 PM ET | May 8 | 2 days | Carlyle Asia Partners IV, L.P. and 7 others10% Owner | SSale | −2.00M | $86.13 | −$172.3M | −23.6%6.48M after | Duplicate filing |
| May 10, 2023 (view filing)4:37 PM ET | May 8 | 2 days | TC Group Cayman Investment Holdings, L.P. and 7 others10% Owner | SSale | −2.00M | $86.13 | −$172.3M | −23.6%6.48M after | |
| Mar 16, 2023 (view filing) | Mar 15 | 1 day | Mora ElizabethDirector | SSale | −200 | $86.67 | −$17.3K | −1.3%15.7K after | |
| Mar 16, 2023 (view filing) | Mar 15 | 1 day | Moloney Jacqueline FDirector | SSale | −225 | $86.67 | −$19.5K | −2.3%9.68K after | |
| Dec 2, 2022 (view filing) | Dec 1 | 1 day | Mora ElizabethDirector | SSale | −200 | $83.86 | −$16.8K | −1.2%15.9K after | |
| Dec 2, 2022 (view filing) | Dec 1 | 1 day | Moloney Jacqueline FDirector | SSale | −225 | $83.86 | −$18.9K | −2.2%9.91K after | |
| Oct 4, 2022 (view filing) | Oct 3 | 1 day | Moloney Jacqueline FDirector | SSale | −225 | $84.14 | −$18.9K | −2.2%10.1K after | |
| Sep 2, 2022 (view filing) | Sep 1 | 1 day | Mora ElizabethDirector | SSale | −200 | $96.72 | −$19.3K | −1.2%16.1K after | |
| Aug 2, 2022 (view filing) | Aug 1 | 1 day | Cannone Peter IIIDirector | PPurchase | +250 | $120.06 | +$30.0K | +8.6%3.14K after | |
| Aug 2, 2022 (view filing) | Aug 1 | 1 day | Colella Gerard GDirector | PPurchase | +1.00K | $117.51 | +$117.5K | +1.0%99.0K after | |
| Mar 2, 2022 (view filing) | Mar 1 | 1 day | Mora ElizabethDirector | SSale | −300 | $149.99 | −$45.0K | −2.0%14.5K after | |
| Dec 2, 2021 (view filing) | Dec 1 | 1 day | Mora ElizabethDirector | SSale | −300 | $155.91 | −$46.8K | −2.0%14.8K after | |
| Nov 8, 2021 (view filing) | Nov 4 | 4 days | Colella Gerard GDirector | SSale | −3.00K | $155.16 | −$465.5K | −3.0%97.0K after | |
| Sep 2, 2021 (view filing) | Sep 1 | 1 day | Mora ElizabethDirector | SSale | −300 | $148.10 | −$44.4K | −1.9%15.1K after |