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DH

David Philip Henry

MKSI
SVP, CORP MKT, PMO & GLOB SVC · MKS INC · CIK 0001842459
FILING MIX · LIFETIME49%/51%
BUYS
43
SELLS
45
TOTAL VALUE
$6.38M
COMPANIES
1
ACTIVE SINCE
Feb 2021
HOLDINGS NOW
10,422
AVG SELL PX
$205.75
TRADE KIND
SHOWING 88 / 88
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
5 backtested trades · 8 horizons · 6 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by David Philip Henry, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d5+80.00%+0.13%+0.52%-0.40%-1.46%—
14d5+80.00%-1.31%+0.72%-2.03%-1.02%—
30d5+80.00%-0.88%-0.02%-0.87%-4.41%—
60d5+60.00%+7.58%+3.04%+4.53%+3.47%—
90d5+40.00%+19.38%+6.89%+12.07%+15.87%—
180d5(1 pending)+50.00%+50.78%+10.99%+39.79%+54.49%—
1y5(2 pending)+66.67%+113.22%+17.09%+96.13%+14.33%—
2y5(3 pending)+100.00%+37.37%+30.17%+7.20%+7.20%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
MKSI · 10,421.527 shares · as of Jun 1, 2026
06,23512,46918,70424,93920222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 43 buys / 45 sellsCOVERAGE · 22 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
MKSI
MKS INC
SALE
EVP, Global Str Mktg & GM, MSD
6,000$314.43$1.89M10,421.527Jun 1, 2026Jun 2, 2026 ↗View →
MKSI
MKS INC
SALE10b5-1
10b5-1 plan
2,500$330.50$826.3K16,341.368May 26, 2026May 27, 2026 ↗View →
MKSI
MKS INC
SALE
EVP, Global Str Mktg & GM, MSD
2,000$261.56$523.1K18,841.368Feb 20, 2026Feb 23, 2026 ↗View →
MKSI
MKS INC
PURCHASEGRANT
Stock grant
2,567.126——21,375.233Feb 17, 2026Feb 18, 2026 ↗View →
MKSI
MKS INC
SALE
EVP, Global Str Mktg & GM, MSD
1,840.64——14,147.416Feb 17, 2026Feb 18, 2026 ↗View →
MKSI
MKS INC
SALE
EVP, Global Str Mktg & GM, MSD
4,097.269$260.74$1.07M20,841.368Feb 17, 2026Feb 18, 2026 ↗View →
MKSI
MKS INC
PURCHASE
EVP, Global Str Mktg & GM, MSD
456.45——19,765.997Feb 17, 2026Feb 18, 2026 ↗View →
MKSI
MKS INC
SALE
EVP, Global Str Mktg & GM, MSD
2,054——12,093.416Feb 17, 2026Feb 18, 2026 ↗View →
MKSI
MKS INC
SALE
EVP, Global Str Mktg & GM, MSD
1,247.156——17,722.506Feb 17, 2026Feb 18, 2026 ↗View →
MKSI
MKS INC
PURCHASE
EVP, Global Str Mktg & GM, MSD
2,054——24,938.637Feb 17, 2026Feb 18, 2026 ↗View →
MKSI
MKS INC
SALE
EVP, Global Str Mktg & GM, MSD
2,405.571——18,969.662Feb 17, 2026Feb 18, 2026 ↗View →
MKSI
MKS INC
SALE
EVP, Global Str Mktg & GM, MSD
456.45——17,266.056Feb 17, 2026Feb 18, 2026 ↗View →
MKSI
MKS INC
PURCHASE
EVP, Global Str Mktg & GM, MSD
2,405.571——18,062.391Feb 17, 2026Feb 18, 2026 ↗View →
MKSI
MKS INC
PURCHASE
EVP, Global Str Mktg & GM, MSD
1,247.156——19,309.547Feb 17, 2026Feb 18, 2026 ↗View →
MKSI
MKS INC
PURCHASE
EVP, Global Str Mktg & GM, MSD
1,278——21,043.997Feb 17, 2026Feb 18, 2026 ↗View →
MKSI
MKS INC
PURCHASE
EVP, Global Str Mktg & GM, MSD
1,840.64——22,884.637Feb 17, 2026Feb 18, 2026 ↗View →
MKSI
MKS INC
SALE
EVP, Global Str Mktg & GM, MSD
1,278——15,988.056Feb 17, 2026Feb 18, 2026 ↗View →
MKSI
MKS INC
PURCHASEGRANT
Stock grant
5,521.949——18,808.107Feb 8, 2026Feb 9, 2026 ↗View →
MKSI
MKS INC
SALE10b5-1
10b5-1 plan
5,000$130.00$650.0K15,571.18Sep 18, 2025Sep 19, 2025 ↗View →
MKSI
MKS INC
SALE10b5-1
10b5-1 plan
2,000$105.00$210.0K20,571.18Jul 3, 2025Jul 7, 2025 ↗View →
MKSI
MKS INC
SALE
EVP, Operations & Corp Mktg
2,372$103.67$245.9K22,419.093Feb 18, 2025Feb 19, 2025 ↗View →
MKSI
MKS INC
PURCHASE
EVP, Operations & Corp Mktg
1,246——23,057.153Feb 18, 2025Feb 19, 2025 ↗View →
MKSI
MKS INC
SALE
EVP, Operations & Corp Mktg
1,246——15,020.098Feb 18, 2025Feb 19, 2025 ↗View →
MKSI
MKS INC
PURCHASE
EVP, Operations & Corp Mktg
2,406——21,811.153Feb 18, 2025Feb 19, 2025 ↗View →
MKSI
MKS INC
PURCHASE
EVP, Operations & Corp Mktg
455.94——23,513.093Feb 18, 2025Feb 19, 2025 ↗View →
MKSI
MKS INC
SALE
EVP, Operations & Corp Mktg
1,278——13,286.158Feb 18, 2025Feb 19, 2025 ↗View →
MKSI
MKS INC
SALE
EVP, Operations & Corp Mktg
2,406——16,266.098Feb 18, 2025Feb 19, 2025 ↗View →
MKSI
MKS INC
SALE
EVP, Operations & Corp Mktg
1,099.369——18,672.098Feb 18, 2025Feb 19, 2025 ↗View →
MKSI
MKS INC
SALE
EVP, Operations & Corp Mktg
1,528.342——19,771.467Feb 18, 2025Feb 19, 2025 ↗View →
MKSI
MKS INC
PURCHASEGRANT
Stock grant
6,162.89——21,299.809Feb 18, 2025Feb 19, 2025 ↗View →
MKSI
MKS INC
SALE
EVP, Operations & Corp Mktg
455.94——14,564.158Feb 18, 2025Feb 19, 2025 ↗View →
MKSI
MKS INC
PURCHASE
EVP, Operations & Corp Mktg
1,528.342——18,305.784Feb 18, 2025Feb 19, 2025 ↗View →
MKSI
MKS INC
PURCHASE
EVP, Operations & Corp Mktg
1,099.369——19,405.153Feb 18, 2025Feb 19, 2025 ↗View →
MKSI
MKS INC
PURCHASE
EVP, Operations & Corp Mktg
1,278——24,791.093Feb 18, 2025Feb 19, 2025 ↗View →
MKSI
MKS INC
PURCHASEGRANT
Stock grant
1,369.196——15,136.919Feb 10, 2025Feb 11, 2025 ↗View →
MKSI
MKS INC
SALE
EVP, Operations & Corp Mktg
581.16——20,046.723Feb 15, 2024Feb 16, 2024 ↗View →
MKSI
MKS INC
SALE
EVP, Operations & Corp Mktg
2,692$122.15$328.8K16,529.903Feb 15, 2024Feb 16, 2024 ↗View →
MKSI
MKS INC
PURCHASE
EVP, Operations & Corp Mktg
1,528——14,470.903Feb 15, 2024Feb 16, 2024 ↗View →
MKSI
MKS INC
PURCHASE
EVP, Operations & Corp Mktg
581.16——12,942.903Feb 15, 2024Feb 16, 2024 ↗View →
MKSI
MKS INC
PURCHASE
EVP, Operations & Corp Mktg
1,100——15,570.903Feb 15, 2024Feb 16, 2024 ↗View →
MKSI
MKS INC
PURCHASE
EVP, Operations & Corp Mktg
2,405——17,975.903Feb 15, 2024Feb 16, 2024 ↗View →
MKSI
MKS INC
PURCHASEGRANT
Stock grant
3,835.285——21,790.204Feb 15, 2024Feb 16, 2024 ↗View →
MKSI
MKS INC
PURCHASE
EVP, Operations & Corp Mktg
1,246——19,221.903Feb 15, 2024Feb 16, 2024 ↗View →
MKSI
MKS INC
SALE
EVP, Operations & Corp Mktg
1,100——17,418.723Feb 15, 2024Feb 16, 2024 ↗View →
MKSI
MKS INC
SALE
EVP, Operations & Corp Mktg
1,246——13,767.723Feb 15, 2024Feb 16, 2024 ↗View →
MKSI
MKS INC
SALE
EVP, Operations & Corp Mktg
1,528——18,518.723Feb 15, 2024Feb 16, 2024 ↗View →
MKSI
MKS INC
SALE
EVP, Operations & Corp Mktg
2,405——15,013.723Feb 15, 2024Feb 16, 2024 ↗View →
MKSI
MKS INC
PURCHASE
EVP, Operations & Corp Mktg
1,162.321——12,361.743Feb 15, 2024Feb 16, 2024 ↗View →
MKSI
MKS INC
SALE
EVP, Operations & Corp Mktg
1,162.321——20,627.883Feb 15, 2024Feb 16, 2024 ↗View →
MKSI
MKS INC
PURCHASEGRANT
Stock grant
7,216.571——17,954.919Feb 5, 2024Feb 6, 2024 ↗View →
MKSI
MKS INC
PURCHASE
EVP, Operations & Corp Mktg
2,500$68.34$170.9K11,073.35Nov 7, 2023Nov 8, 2023 ↗View →
MKSI
MKS INC
PURCHASE
EVP, Operations & Corp Mktg
1,161——6,846.254Feb 15, 2023Feb 16, 2023 ↗View →
MKSI
MKS INC
PURCHASE
EVP, Operations & Corp Mktg
581——7,427.254Feb 15, 2023Feb 16, 2023 ↗View →
MKSI
MKS INC
PURCHASE
EVP, Operations & Corp Mktg
1,171.778——5,685.254Feb 15, 2023Feb 16, 2023 ↗View →
MKSI
MKS INC
SALE
EVP, Operations & Corp Mktg
581——13,363.348Feb 15, 2023Feb 16, 2023 ↗View →
MKSI
MKS INC
PURCHASE
EVP, Operations & Corp Mktg
1,527——8,954.254Feb 15, 2023Feb 16, 2023 ↗View →
MKSI
MKS INC
SALE
EVP, Operations & Corp Mktg
1,629$100.29$163.4K8,423.254Feb 15, 2023Feb 16, 2023 ↗View →
MKSI
MKS INC
SALE
EVP, Operations & Corp Mktg
1,527——11,836.348Feb 15, 2023Feb 16, 2023 ↗View →
MKSI
MKS INC
PURCHASE
EVP, Operations & Corp Mktg
1,098——10,052.254Feb 15, 2023Feb 16, 2023 ↗View →
MKSI
MKS INC
SALE
EVP, Operations & Corp Mktg
1,161——13,944.348Feb 15, 2023Feb 16, 2023 ↗View →
MKSI
MKS INC
SALE
EVP, Operations & Corp Mktg
1,098——10,738.348Feb 15, 2023Feb 16, 2023 ↗View →
MKSI
MKS INC
PURCHASEGRANT
Stock grant
3,739.156——16,277.126Feb 15, 2023Feb 16, 2023 ↗View →
MKSI
MKS INC
SALE
EVP, Operations & Corp Mktg
1,171.778——15,105.348Feb 15, 2023Feb 16, 2023 ↗View →
MKSI
MKS INC
PURCHASEGRANT
Stock grant
4,583.342——12,537.97Feb 8, 2023Feb 9, 2023 ↗View →
MKSI
MKS INC
PURCHASEGRANT
Stock grant
226.655——7,954.628Aug 17, 2022Aug 18, 2022 ↗View →
MKSI
MKS INC
PURCHASEGRANT
Stock grant
3,070.714——7,727.973Apr 29, 2022May 2, 2022 ↗View →
MKSI
MKS INC
SALE
SVP, Corp Mkt, PMO & Glob Svc
479.339——4,657.259Apr 18, 2022Apr 19, 2022 ↗View →
MKSI
MKS INC
PURCHASE
SVP, Corp Mkt, PMO & Glob Svc
479.339——4,497.576Apr 18, 2022Apr 19, 2022 ↗View →
MKSI
MKS INC
SALE
SVP, Corp Mkt, PMO & Glob Svc
162$114.99$18.6K4,335.576Apr 18, 2022Apr 19, 2022 ↗View →
MKSI
MKS INC
SALE
SVP, Corp Mkt, PMO & Glob Svc
580——5,136.598Feb 15, 2022Feb 16, 2022 ↗View →
MKSI
MKS INC
SALE
SVP, Corp Mkt, PMO & Glob Svc
1,161——5,716.598Feb 15, 2022Feb 16, 2022 ↗View →
MKSI
MKS INC
SALE
SVP, Corp Mkt, PMO & Glob Svc
1,171——6,877.598Feb 15, 2022Feb 16, 2022 ↗View →
MKSI
MKS INC
SALE
SVP, Corp Mkt, PMO & Glob Svc
856$152.55$130.6K4,018.237Feb 15, 2022Feb 16, 2022 ↗View →
MKSI
MKS INC
PURCHASE
SVP, Corp Mkt, PMO & Glob Svc
1,161——4,294.237Feb 15, 2022Feb 16, 2022 ↗View →
MKSI
MKS INC
PURCHASE
SVP, Corp Mkt, PMO & Glob Svc
580——4,874.237Feb 15, 2022Feb 16, 2022 ↗View →
MKSI
MKS INC
PURCHASE
SVP, Corp Mkt, PMO & Glob Svc
1,171——3,133.237Feb 15, 2022Feb 16, 2022 ↗View →
MKSI
MKS INC
PURCHASEGRANT
Stock grant
3,484.321——8,048.598Jan 21, 2022Jan 24, 2022 ↗View →
MKSI
MKS INC
SALE
SVP, Corp Mkt, PMO & Glob Svc
284$186.70$53.0K1,805.58May 20, 2021May 21, 2021 ↗View →
MKSI
MKS INC
PURCHASE
SVP, Corp Mkt, PMO & Glob Svc
479——2,230.58Apr 15, 2021Apr 16, 2021 ↗View →
MKSI
MKS INC
SALE
SVP, Corp Mkt, PMO & Glob Svc
479——4,564.277Apr 15, 2021Apr 16, 2021 ↗View →
MKSI
MKS INC
SALE
SVP, Corp Mkt, PMO & Glob Svc
141$188.26$26.5K2,089.58Apr 15, 2021Apr 16, 2021 ↗View →
MKSI
MKS INC
PURCHASE
SVP, Corp Mkt, PMO & Glob Svc
356.376——1,856.58Apr 13, 2021Apr 14, 2021 ↗View →
MKSI
MKS INC
SALE
SVP, Corp Mkt, PMO & Glob Svc
356.376——5,043.277Apr 13, 2021Apr 14, 2021 ↗View →
MKSI
MKS INC
SALE
SVP, Corp Mkt, PMO & Glob Svc
105$186.52$19.6K1,751.58Apr 13, 2021Apr 14, 2021 ↗View →
MKSI
MKS INC
SALE
SVP, Corp Mkt, PMO & Glob Svc
344$172.20$59.2K1,500.204Feb 16, 2021Feb 17, 2021 ↗View →
MKSI
MKS INC
PURCHASE
SVP, Corp Mkt, PMO & Glob Svc
1,170——1,844.204Feb 16, 2021Feb 17, 2021 ↗View →
MKSI
MKS INC
PURCHASEGRANT
Stock grant
1,742.16——6,569.653Feb 16, 2021Feb 17, 2021 ↗View →
MKSI
MKS INC
SALE
SVP, Corp Mkt, PMO & Glob Svc
1,170——5,399.653Feb 16, 2021Feb 17, 2021 ↗View →
Other insiders · MKSI
Loading peer insiders…
About this filer
CIK 0001842459
ROLE
SVP, Corp Mkt, PMO & Glob Svc
PRIMARY
MKSI
COMPANIES
1
ACTIVE SINCE
Feb 2021
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