| 2025-12-05 | -25.1% | expansion | Seeking Alpha | Parsons secures spot on $1B sound transit design contract |
| 2025-12-05 | -25.1% | expansion | Seeking Alpha | Parsons plunges as Peraton wins multi-billion dollar air traffic control contract |
| 2025-12-05 | -25.1% | expansion | Investing.com | Parsons stock downgraded by Raymond James after losing FAA contract - Investing.com |
| 2025-12-05 | -25.1% | news | TipRanks | Why Did Parsons Stock (PSN) Plummet Today? - TipRanks |
| 2025-12-05 | -25.1% | news | Stocktwits | WKHS Stock Slides 5% Ahead Of 1-For-12 Reverse Split - Stocktwits |
| 2025-12-05 | -25.1% | earnings | Stocktwits | Gunmaker Smith & Wesson On Course For Best Day In 19 Months After Upbeat Q2 Earnings - Stocktwits |
| 2025-02-19 | -15.5% | legal | SEC EDGAR | PSN 8-K: 2.02 and (SEC Filing) |
| 2024-07-31 | +14.5% | legal | SEC EDGAR | PSN 8-K: 2.02 and (SEC Filing) |
| 2026-02-10 | -13.0% | earnings | Seeking Alpha | Parsons Q4 2025 Earnings Preview |
| 2026-02-10 | -13.0% | expansion | Seeking Alpha | Parsons secures $125M U.S. Army contract |
| 2021-08-04 | -12.0% | legal | SEC EDGAR | PSN 8-K: 2.02 and (SEC Filing) |
| 2025-01-23 | -11.9% | news | Yahoo Finance | Why PSN Stock Is Falling Today - Yahoo Finance |
| 2023-08-02 | +10.7% | legal | SEC EDGAR | PSN 8-K: 2.02 and (SEC Filing) |
| 2026-02-11 | -9.2% | earnings | Seeking Alpha | Parsons outlines 4.5% revenue growth target for 2026 following record backlog and margin expansion |
| 2026-02-11 | -9.2% | earnings | Seeking Alpha | Parsons Corporation (PSN) Q4 2025 Earnings Call Transcript |
| 2026-02-11 | -9.2% | earnings | Seeking Alpha | Parsons Corporation 2025 Q4 - Results - Earnings Call Presentation |
| 2026-02-11 | -9.2% | earnings | Seeking Alpha | Parsons plunges after Q4 revenue miss, soft earnings |
| 2026-02-11 | -9.2% | earnings | Seeking Alpha | Parsons misses Q4 market estimates |
| 2026-02-11 | -9.2% | legal | SEC EDGAR | PSN 8-K: 2.02 and (SEC Filing) |
| 2024-02-14 | +8.7% | legal | SEC EDGAR | PSN 8-K: 2.02 and (SEC Filing) |
| 2025-04-30 | -7.7% | legal | SEC EDGAR | PSN 8-K: 2.02 and (SEC Filing) |
| 2026-02-18 | +7.1% | news | Seeking Alpha | Parsons Corporation (PSN) Presents at Barclays 43rd Annual Industrial Select Conference Transcript |
| 2026-03-18 | -5.8% | news | Seeking Alpha | Parsons: A More Balanced Situation Here |
| 2022-11-02 | +5.7% | legal | SEC EDGAR | PSN 8-K: 2.02 and (SEC Filing) |
| 2025-12-09 | +5.5% | news | Seeking Alpha | Parsons Corporation (PSN) Presents at Raymond James TMT & Consumer Conference Transcript |
| 2026-04-22 | -5.3% | earnings | Zacks | Analysts Estimate Parsons (PSN) to Report a Decline in Earnings: What to Look Out for |
| 2026-04-22 | -5.3% | earnings | Seeking Alpha | The ClearBridge Small-Cap Strategy reports portfolio changes with multiple initiations and exits in Q1 2026 |
| 2024-10-30 | +5.2% | legal | SEC EDGAR | PSN 8-K: 2.02 and (SEC Filing) |
| 2024-10-30 | +5.2% | news | Yahoo Finance | Decoding Parsons Corp (PSN): A Strategic SWOT Insight - Yahoo Finance |
| 2023-11-01 | +4.8% | legal | SEC EDGAR | PSN 8-K: 2.02 and (SEC Filing) |
| 2023-05-03 | +4.7% | legal | SEC EDGAR | PSN 8-K: 2.02 and (SEC Filing) |
| 2026-01-05 | +4.7% | expansion | Seeking Alpha | Parsons wins $392M federal contract |
| 2026-03-24 | +4.5% | expansion | Yahoo Finance | How Investors Are Reacting To Parsons (PSN) Classified Contract And Tech‑Driven Federal Infrastructure Push - Yahoo Finance |
| 2022-08-03 | -4.0% | legal | SEC EDGAR | PSN 8-K: 2.02 and (SEC Filing) |
| 2025-11-05 | +3.9% | legal | SEC EDGAR | PSN 8-K: 2.02 and (SEC Filing) |
| 2025-11-05 | +3.9% | earnings | MSN | Parsons stock falls on revenue shortfall, lowered guidance - MSN |
| 2021-05-05 | -3.9% | legal | SEC EDGAR | PSN 8-K: 2.02 and (SEC Filing) |
| 2025-06-02 | +3.3% | legal | SEC EDGAR | PSN 8-K: 8.01 and (SEC Filing) |
| 2022-05-04 | +3.3% | legal | SEC EDGAR | PSN 8-K: 2.02 and (SEC Filing) |
| 2026-04-17 | -3.0% | expansion | Simply Wall St. | Parsons (PSN) Valuation Check After New Coast Guard And Infrastructure Contract Wins |
| 2026-04-16 | -2.9% | expansion | Yahoo Finance | Parsons (PSN) Valuation Check After New Coast Guard And Infrastructure Contract Wins - Yahoo Finance |
| 2026-01-15 | +2.8% | M&A | Seeking Alpha | Parsons acquires Altamira Technologies for $375M |
| 2026-01-15 | +2.8% | legal | SEC EDGAR | PSN 8-K: 8.01 and (SEC Filing) |
| 2022-09-19 | +2.8% | legal | SEC EDGAR | PSN 8-K: 1.01, 1.02, 2.03 (SEC Filing) |
| 2026-01-26 | -2.7% | expansion | Seeking Alpha | Parsons awarded $593M federal aviation administration contract extension |
| 2026-04-21 | -2.6% | earnings | Motley Fool | Parsons (PSN) Q2 2025 Earnings Transcript |
| 2026-04-21 | -2.6% | earnings | Motley Fool | Parsons (PSN) Q3 2025 Earnings Transcript |
| 2026-04-21 | -2.6% | news | Seeking Alpha | USAID shutdown fallout ripples through Washington economy |
| 2021-11-03 | +2.6% | legal | SEC EDGAR | PSN 8-K: 2.02 and (SEC Filing) |
| 2021-07-07 | +2.5% | legal | SEC EDGAR | PSN 8-K: 2.01, 7.01 (SEC Filing) |
| 2025-02-11 | -2.3% | news | Intellectia AI | PSN Stock: Price, Forecast, Financials & AI Analysis - Intellectia AI |
| 2022-07-25 | +2.3% | legal | SEC EDGAR | PSN 8-K: 5.02 (SEC Filing) |
| 2026-02-26 | +2.3% | legal | SEC EDGAR | PSN 8-K: 5.02 (SEC Filing) |
| 2026-04-13 | -2.2% | earnings | Seeking Alpha | Baird turns cautious on engineering firms ahead of earnings, downgrades Parsons |
| 2025-03-24 | +2.2% | legal | SEC EDGAR | PSN 8-K: 8.01 and (SEC Filing) |
| 2024-05-01 | -2.1% | legal | SEC EDGAR | PSN 8-K: 2.02 and (SEC Filing) |
| 2023-02-15 | -2.1% | legal | SEC EDGAR | PSN 8-K: 2.02 and (SEC Filing) |
| 2026-02-02 | -2.1% | expansion | Seeking Alpha | Parsons secures $60M contract |
| 2025-12-08 | -1.8% | expansion | Investing.com | KeyBanc lowers Parsons stock price target to $81 on FAA contract loss - Investing.com |
| 2026-03-17 | -1.7% | legal | SEC EDGAR | PSN 8-K: 5.02, 7.01 (SEC Filing) |
| 2026-04-20 | -1.6% | legal | MT Newswires | Sector Update: Tech Stocks Lean Lower Premarket Monday |
| 2026-04-20 | -1.6% | earnings | MT Newswires | Truist Cuts Price Target on Parsons to $75 From $85, Keeps Buy Rating |
| 2026-04-20 | -1.6% | news | MT Newswires | Parsons to Provide Services to Los Angeles Department of Water, Power |
| 2026-04-20 | -1.6% | news | GlobeNewswire | Parsons Demand Response Technology to Optimize and Enable Los Angeles Department of Water & Power’s Operations and Strategic Plan |
| 2026-04-08 | -1.6% | analyst | Cổng thông tin điện tử Tỉnh Sơn La | Will Fresh Del (FDP) Stock Outperform S&P 500 | Price at $42.19, Up 1.54% - Public Sentiment - Cổng thông tin điện tử Tỉnh Sơn La |
| 2025-12-03 | +1.5% | legal | SEC EDGAR | PSN 8-K: 5.02 (SEC Filing) |
| 2021-06-29 | -1.5% | legal | SEC EDGAR | PSN 8-K: 1.01, 1.02, 2.03 (SEC Filing) |
| 2025-12-19 | +1.4% | expansion | Seeking Alpha | Parsons secures $100M+ contract for new rocket motor plant in Florida |
| 2026-04-18 | -1.3% | expansion | Insider Monkey | Parsons Corporation (PSN) Secures Construction Management Services Contract in New York |
| 2026-04-14 | -1.2% | news | Seeking Alpha | Parsons selected for 16-year, 3.25-mile NYC's Newtown Creek Tunnel project |
| 2025-12-22 | +1.1% | expansion | Seeking Alpha | Parsons Corporation wins $151B MDA SHIELD contract |
| 2025-12-22 | +1.1% | expansion | Seeking Alpha | Parsons secures $30M support contract for Blackjack program |
| 2026-01-12 | -1.0% | news | Seeking Alpha | Parsons: More Doubts Than Answers |
| 2026-04-15 | -1.0% | expansion | Seeking Alpha | Parsons JV lands $25M contract for Coast Guard modernization plan |
| 2026-02-09 | +0.9% | expansion | Seeking Alpha | Parsons secures $91M OSIS II contract extension from U.S. state department |
| 2022-05-23 | +0.9% | legal | SEC EDGAR | PSN 8-K: 8.01 and (SEC Filing) |
| 2025-08-06 | -0.9% | legal | SEC EDGAR | PSN 8-K: 2.02 and (SEC Filing) |
| 2021-06-24 | +0.8% | legal | SEC EDGAR | PSN 8-K: 5.02 (SEC Filing) |
| 2022-02-23 | +0.7% | legal | SEC EDGAR | PSN 8-K: 2.02 and (SEC Filing) |
| 2024-02-27 | +0.7% | legal | SEC EDGAR | PSN 8-K: 1.01, 2.03, 3.02, 7.01, 8.01 (SEC Filing) |
| 2026-04-06 | -0.6% | expansion | Seeking Alpha | Parsons wins 10-year contract for Utah statewide V2X system |
| 2025-12-18 | +0.6% | expansion | Seeking Alpha | Parsons secures seat on massive $15B U.S. Air Force Comprehensive Construction & Engineering contract |
| 2025-12-18 | +0.6% | legal | SEC EDGAR | PSN 8-K: 5.02 (SEC Filing) |
| 2022-05-27 | +0.6% | legal | SEC EDGAR | PSN 8-K: 1.01 and (SEC Filing) |
| 2022-01-24 | +0.5% | legal | SEC EDGAR | PSN 8-K: 5.02 and (SEC Filing) |
| 2021-08-11 | -0.5% | legal | SEC EDGAR | PSN 8-K: 1.01 (SEC Filing) |
| 2023-12-21 | +0.4% | legal | SEC EDGAR | PSN 8-K: 5.02 (SEC Filing) |
| 2025-12-10 | +0.2% | legal | Seeking Alpha | Parsons secures $88M task order to support Air Defense at Ramstein Air Base, Germany |
| 2026-03-19 | -0.1% | expansion | Seeking Alpha | Parsons awarded $47M classified contract extension |
| 2025-06-05 | -0.1% | legal | SEC EDGAR | PSN 8-K: 1.01, 1.02 (SEC Filing) |
| 2021-06-10 | +0.1% | legal | SEC EDGAR | PSN 8-K: 8.01 and (SEC Filing) |
| 2026-04-26 | — | analyst | MSN | This Parsons analyst is no longer bullish; here are top 5 downgrades for Wednesday - MSN |
| 2026-04-25 | — | news | Simply Wall St. | New Long-Term U.S. Infrastructure Wins Might Change The Case For Investing In Parsons (PSN) |