Health Care / Chemicals & Pharmaceuticals
Congressional stock trading activity sourced from STOCK Act financial disclosures.
Federal contract context is also available for matched USAspending recipients tied to MRK.
Total Trades
137
Members
40
Purchases
65
Sales
71
Avg Conflict
9 / 100
High Conflict
0
Total disclosed volume: $1,493,137 - $5,120,000 · Latest trade: Aug 19, 2026
Matched federal spending records can add context when a heavily traded company is also receiving public money. These recipient matches come from USAspending and should be read alongside, not instead of, the underlying trade filings.
Matched recipients
1
Tracked awards
4
Matched spending
$17.5M
Merck & Co., Inc. matches USAspending recipient MCL-MRK VII LLC, with approximately $17,493,160 in tracked federal spending during the queried window.
22
Members
83
Trades
10 / 100
Avg Score
18
Members
54
Trades
8 / 100
Avg Score
25 Form 4 transactions by 5 insiders in the last 90 days. Buys and sales below count open-market transactions only — Form 4 codes P and S. Grants, option exercises and shares withheld for tax move the share count but are not decisions to trade.
Open-market buys
0
Open-market sales
17
Net shares, all codes
−101,758
Buys per sale
0.00
| Insider | Role | Date | Transaction | Shares | Price | Total Value | Filing |
|---|---|---|---|---|---|---|---|
| Guindo Chirfi | EVP, Access, Policy & Comms | Aug 13, 2026 |
One card per congressional trade. Where several insiders filed in the same window, the card names the largest and counts the rest.
Maria Elvira Salazar bought MRK 6 days after Guindo Chirfi, EVP, Access, Policy & Comms, reported sold on a Form 4. 2 other insiders filed in the same window.
Maria Elvira Salazar bought MRK 7 days after Zachary Jennifer, EVP, General Counsel, reported exercised options on a Form 4.
| Date▼ | Member↕ | Type↕ | Amount↕ | Owner | Conflict↕ |
|---|---|---|---|---|---|
| Aug 19, 2026 | Maria Elvira Salazar | purchase | $15,001 - $50,000 | self | -- |
| Aug 19, 2026 | Maria Elvira Salazar | purchase | $15,001 - $50,000 | self | -- |
| Mar 27, 2026 | Kelly Armstrong | sale | $15,001 - $50,000 | self | -- |
| Feb 4, 2026 | Josh Gottheimer | purchase | $1,001 - $15,000 | joint | 36 / 100 |
| Dec 19, 2025 | Gilbert Ray Cisneros, Jr. | purchase | $1,001 - $15,000 | self | -- |
| Dec 18, 2025 | Julie Johnson | sale | $1,001 - $15,000 | joint | 36 / 100 |
| Nov 18, 2025 | Gilbert Ray Cisneros, Jr. | purchase | $1,001 - $15,000 | self | -- |
| Nov 13, 2025 | Julie Johnson | sale | $1,001 - $15,000 | joint | 31 / 100 |
| Sep 23, 2025 | Val T. Hoyle | sale | $1,001 - $15,000 | spouse | 21 / 100 |
| Aug 28, 2025 | Marjorie Taylor Greene | purchase | $1,001 - $15,000 | self | -- |
| Aug 14, 2025 | Julie Johnson | sale | $1,001 - $15,000 | joint | 1 / 100 |
| Aug 5, 2025 | Gilbert Ray Cisneros, Jr. | purchase | $1,001 - $15,000 | self | -- |
| Aug 4, 2025 | Lisa C. McClain | sale | $1,001 - $15,000 | spouse | 7 / 100 |
| Jul 11, 2025 | Ritchie Torres | sale | $1,001 - $15,000 | self | -- |
| Jun 24, 2025 | Lisa C. McClain | purchase | $1,001 - $15,000 | spouse | 36 / 100 |
| Jun 16, 2025 | Scott Franklin | sale | $1,001 - $15,000 | joint | 21 / 100 |
| Jun 13, 2025 | Julie Johnson | purchase | $1,001 - $15,000 | joint | 31 / 100 |
| May 30, 2025 | Gilbert Ray Cisneros, Jr. | sale | $1,001 - $15,000 | self | -- |
| May 15, 2025 | Robert P. Bresnahan, Jr. | sale | $15,001 - $50,000 | self | 26 / 100 |
| May 5, 2025 | Marjorie Taylor Greene | purchase | $1,001 - $15,000 | self | -- |
| Apr 29, 2025 | Gilbert Ray Cisneros, Jr. | purchase | $1,001 - $15,000 | self | -- |
| Apr 21, 2025 | Bruce Westerman | sale | $1,001 - $15,000 | self | 14 / 100 |
| Apr 17, 2025 | Jefferson Shreve | sale | $15,001 - $50,000 | self | 14 / 100 |
| Apr 9, 2025 | Marjorie Taylor Greene | purchase | $1,001 - $15,000 | self | -- |
| Apr 8, 2025 | Robert P. Bresnahan, Jr. | purchase | $15,001 - $50,000 | self | 2 / 100 |
Other Health Care stocks traded by members of Congress.
| Open-market sale |
| 10,000 |
| $135.00 |
| $1.4M |
| SEC Filing |
| Zachary Jennifer | EVP, General Counsel | Aug 12, 2026 | Open-market sale | 80,315 | $133.46 | $10.7M | SEC Filing |
| Zachary Jennifer | EVP, General Counsel | Aug 12, 2026 | Option exercise | 41,494 | $117.89 | $4.9M | SEC Filing |
| DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | Aug 12, 2026 | Open-market sale | 11,099 | $131.61 | $1.5M | SEC Filing |
| Zachary Jennifer | EVP, General Counsel | Aug 12, 2026 | Option exercise | 13,433 | $84.71 | $1.1M | SEC Filing |
| DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | Aug 12, 2026 | Open-market sale | 600 | $132.04 | $79,222 | SEC Filing |
| DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | Aug 11, 2026 | Open-market sale | 7,410 | $131.33 | $973,165 | SEC Filing |
| DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | Aug 11, 2026 | Open-market sale | 5,427 | $132.35 | $718,261 | SEC Filing |
| DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | Aug 10, 2026 | Open-market sale | 20,784 | $130.43 | $2.7M | SEC Filing |
| Guindo Chirfi | EVP, Access, Policy & Comms | Aug 6, 2026 | Open-market sale | 15,000 | $131.00 | $2M | SEC Filing |
| DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | Aug 6, 2026 | Open-market sale | 4,945 | $130.23 | $643,993 | SEC Filing |
| DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | Aug 6, 2026 | Open-market sale | 805 | $131.02 | $105,472 | SEC Filing |
| DeLuca Richard R. | EVP&Pres, Merck Animal Heallth | Aug 6, 2026 | Open-market sale | 300 | $131.02 | $39,307 | SEC Filing |
| Williams David Michael | EVP,Chief Info&Digital Officer | Aug 5, 2026 | Open-market sale | 34,705 | $128.77 | $4.5M | SEC Filing |
| Williams David Michael | EVP,Chief Info&Digital Officer | Aug 5, 2026 | Option exercise | 34,705 | $73.73 | $2.6M | SEC Filing |
| Williams David Michael | EVP,Chief Info&Digital Officer | Aug 5, 2026 | Open-market sale | 13,542 | $128.77 | $1.7M | SEC Filing |
| Maraldo David R. | EVP & Pres. MMD | Aug 5, 2026 | Open-market sale | 9,709 | $128.72 | $1.2M | SEC Filing |
| Williams David Michael | EVP,Chief Info&Digital Officer | Aug 5, 2026 | Option exercise | 13,542 | $75.36 | $1M | SEC Filing |
| Maraldo David R. | EVP & Pres. MMD | Aug 5, 2026 | Option exercise | 9,709 | $87.10 | $845,654 | SEC Filing |
| Maraldo David R. | EVP & Pres. MMD | Aug 5, 2026 | Open-market sale | 6,311 | $128.72 | $812,339 | SEC Filing |
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