Gene therapy preparations manufacturing · California

Atara Biotherapeutics - ION

Thousand Oaks, CA · ~186 workers · 3 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
5.1
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Atara Biotherapeutics - ION runs at 155% of its industry's injury rate - more dangerous than the typical Gene therapy preparations manufacturing workplace, earning a grade D.

Atara Biotherapeutics - ION: 5.1 TCR = 155% of Gene therapy preparations manufacturing BLS 3.3 · 3y Form 300A (see methodology below)

Atara Biotherapeutics - ION safety composite

Atara Biotherapeutics - ION scores strongest on dart rate (safer than 83% of same-industry peers) and weakest on total case rate (tcr) (safer than 8%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

D

45/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 5.11 per 100 workers

Safer than 8% of industry peers

DART rate
B 0 per 100 workers

Safer than 83% of industry peers

Fatalities
D 0

Safer than 50% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

TCR Δ

−15.3

2022→2024

Atara Biotherapeutics - ION injury rate improved

Atara Biotherapeutics - ION's TCR fell 15.3 from 15.3 in 2022 to 0.0 in 2024. Peak filing year was 2022 at 15.3 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

2022=15.3 · 2023=0.0 · 2024=0.0

OSHA ITA Form 300A scorecard

Establishment book 325414 · Thousand Oaks, CA ABOVE-IND · MID

Grade D · TCR 5.1 · 155% of ind

  • DART 0.0 DART
  • RANK #24/29
  • PHOTO Elanco Animal Health…
  • BOOK 3y book
  • INJ 0 inj
  • SIZE ~186 FTE

Nearest TCR peer: Elanco Animal Health Larchwood (0.1 TCR gap)

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Atara Biotherapeutics - ION in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows Atara Biotherapeutics - ION averages 5.1 TCR (155% of the Gene therapy preparations manufacturing BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

Atara Biotherapeutics - ION TCR series: 2022=15.3 · 2023=0 · 2024=0 · BLS 3.3

Where Atara Biotherapeutics - ION falls in its industry

234 Gene therapy preparations manu establishments

Safer than 8% of graded establishments in this industry, whose median TCR is 1.2.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #24 safest of 29 Gene therapy preparations manu employers in California.

Atara Biotherapeutics - ION (186 employees, TCR 5.1) among 29 same-industry peers, split at the industry median of 198 employees and a TCR of 1.2 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 05001,0001,5002,000 0246 Average employees Total Case Rate Atara Biotherapeutics - ION
Atara Biotherapeutics - ION (186 employees, TCR 5.1) among 29 same-industry peers, split at the industry median of 198 employees and a TCR of 1.2

Atara Biotherapeutics - ION has fewer employees than the Gene therapy preparations manufacturing median and a higher injury rate than the industry's median TCR of 1.2. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year TCR DART Injuries Illnesses Fatalities
2024 0.0 0.0 0 0 0
2023 0.0 0.0 0 0 0
2022 15.3 15.3 0 6 0

OSHA ITA peer cross-reference

Establishment peer ledger

325414 · CA · Thousand Oaks

234 Gene therapy preparations manufacturing employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 143 employers in Thousand Oaks, CA · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR Elanco Animal Health Larchwood 5.1 TCR
NAICS-TCR Teknova 5.4 TCR
NAICS-TCR MilliporeSigma - Broadway 4.8 TCR
NAICS-TCR Greendale Catalent 5.4 TCR
STATE-SIZE PRIMA NOCE PACKING, INC. 186 FTE
STATE-SIZE Jorge Castro Farms 186 FTE
STATE-SIZE CA-Redlands Nevada Bldg 186 FTE
STATE-SIZE Pacific Coast Sales and Service, Inc. 186 FTE
CITY-NEAR Amgen Inc. (Thousand Oaks, CA) 5,792 FTE
CITY-NEAR Amgen USA (Sales - Flex workers) 2,803 FTE
CITY-NEAR California Department of Transportation Facility 472 2,621 FTE
CITY-NEAR Los Robles Hospital and Medical Center 1,651 FTE
NAT-TCR 4064 - Shelby Countertops 5.1 TCR
NAT-TCR St. Johns United - Billings Gainan's Commons 5.1 TCR
NAT-TCR Spring Arbor of Kinston 5.1 TCR
NAT-TCR Shelby Manor 5.1 TCR
NAT-SIZE American Axles Manufactuing St. Marys 186 FTE
NAT-SIZE CMC Steel Arizona 2 186 FTE
NAT-SIZE 252-PL001 186 FTE
NAT-SIZE Muncie in - 3138 186 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2024, 2023, 2022. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.